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/*!
  * CoreUI v3.4.0 (https://coreui.io)
  * Copyright 2020 creativeLabs Łukasz Holeczek
  * Licensed under MIT (https://coreui.io)
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e=this._menu.classList.contains(wn);t.clearMenus(),e||this.show()}},n.show=function(){if(!(this._element.disabled||this._element.classList.contains(yn)||this._menu.classList.contains(wn))){var e=t.getParentFromElement(this._element),n={relatedTarget:this._element};if(!F.trigger(e,"show.coreui.dropdown",n).defaultPrevented){if(!this._inNavbar&&!this._inHeader){if("undefined"==typeof an)throw new TypeError("CoreUI's dropdowns require Popper.js (https://popper.js.org)");var i=this._element;"parent"===this._config.reference?i=e:m(this._config.reference)&&(i=this._config.reference,"undefined"!=typeof this._config.reference.jquery&&(i=this._config.reference[0])),"scrollParent"!==this._config.boundary&&e.classList.add("position-static"),this._popper=an(i,this._menu,this._getPopperConfig())}var o,r;if("ontouchstart"in document.documentElement&&!e.closest(".navbar-nav"))(o=[]).concat.apply(o,document.body.children).forEach((function(t){return 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t.classList.contains("dropup")?(e="top-start",this._menu.classList.contains(En)&&(e="top-end")):t.classList.contains("dropright")?e="right-start":t.classList.contains("dropleft")?e="left-start":this._menu.classList.contains(En)&&(e="bottom-end"),e},n._detectNavbar=function(){return Boolean(this._element.closest(".navbar"))},n._detectHeader=function(){return Boolean(this._element.closest(".c-header"))},n._getOffset=function(){var t=this;return"function"==typeof this._config.offset?function(e){var n=e.placement,i=e.reference,o=e.popper;return t._config.offset({placement:n,reference:i,popper:o})}:this._config.offset},n._getPopperConfig=function(){var t={placement:this._getPlacement(),modifiers:[{name:"offset",options:{offset:this._getOffset()}},{name:"flip",enabled:this._config.flip},{name:"preventOverflow",options:{boundary:this._config.boundary}}]};return"static"===this._config.display&&(t.modifiers={name:"applyStyles",enabled:!1}),o(o({},t),this._config.popperConfig)},t.dropdownInterface=function(e,n){var i=O(e,cn);if(i||(i=new t(e,"object"==typeof n?n:null)),"string"==typeof n){if("undefined"==typeof i[n])throw new TypeError('No method named "'+n+'"');i[n]()}},t.jQueryInterface=function(e){return this.each((function(){t.dropdownInterface(this,e)}))},t.clearMenus=function(e){if(!e||2!==e.button&&("keyup"!==e.type||"Tab"===e.key))for(var n=at.find(Ln),i=0,o=n.length;i<o;i++){var r=t.getParentFromElement(n[i]),s=O(n[i],cn),a={relatedTarget:n[i]};if(e&&"click"===e.type&&(a.clickEvent=e),s){var l=s._menu;if(r.classList.contains(wn))if(!(e&&("click"===e.type&&/input|textarea/i.test(e.target.tagName)||"keyup"===e.type&&"Tab"===e.key)&&r.contains(e.target)))if(!F.trigger(r,mn,a).defaultPrevented){var c;if("ontouchstart"in document.documentElement)(c=[]).concat.apply(c,document.body.children).forEach((function(t){return F.off(t,"mouseover",null,(function(){}))}));n[i].setAttribute("aria-expanded","false"),s._popper&&s._popper.destroy(),l.classList.remove(wn),r.classList.remove(wn),F.trigger(r,vn,a)}}}},t.getParentFromElement=function(t){return d(t)||t.parentNode},t.dataApiKeydownHandler=function(e){if(!(/input|textarea/i.test(e.target.tagName)?e.key===hn||e.key!==fn&&(e.key!==pn&&e.key!==dn||e.target.closest(Tn)):!gn.test(e.key))&&(e.preventDefault(),e.stopPropagation(),!this.disabled&&!this.classList.contains(yn))){var n=t.getParentFromElement(this),i=n.classList.contains(wn);if(e.key===fn)return(this.matches(Ln)?this:at.prev(this,Ln)[0]).focus(),void t.clearMenus();if(i&&e.key!==hn){var o=at.find(".dropdown-menu .dropdown-item:not(.disabled):not(:disabled)",n).filter(b);if(o.length){var r=o.indexOf(e.target);e.key===dn&&r>0&&r--,e.key===pn&&r<o.length-1&&r++,o[r=-1===r?0:r].focus()}}else t.clearMenus()}},t.getInstance=function(t){return O(t,cn)},e(t,null,[{key:"VERSION",get:function(){return"3.2.2"}},{key:"Default",get:function(){return kn}},{key:"DefaultType",get:function(){return On}}]),t}();F.on(document,bn,Ln,Cn.dataApiKeydownHandler),F.on(document,bn,Tn,Cn.dataApiKeydownHandler),F.on(document,_n,Cn.clearMenus),F.on(document,"keyup.coreui.dropdown.data-api",Cn.clearMenus),F.on(document,_n,Ln,(function(t){t.preventDefault(),t.stopPropagation(),Cn.dropdownInterface(this,"toggle")})),F.on(document,_n,".dropdown form",(function(t){return t.stopPropagation()}));var Sn=L();if(Sn){var An=Sn.fn[ln];Sn.fn[ln]=Cn.jQueryInterface,Sn.fn[ln].Constructor=Cn,Sn.fn[ln].noConflict=function(){return Sn.fn[ln]=An,Cn.jQueryInterface}}var xn="modal",Dn="coreui.modal",jn="."+Dn,Nn="Escape",In={backdrop:!0,keyboard:!0,focus:!0,show:!0},Pn={backdrop:"(boolean|string)",keyboard:"boolean",focus:"boolean",show:"boolean"},Rn="hidden"+jn,Mn="show"+jn,Hn="focusin"+jn,Wn="resize"+jn,Yn="click.dismiss"+jn,Xn="keydown.dismiss"+jn,Bn="mousedown.dismiss"+jn,Un="modal-open",qn="fade",Qn="show",Fn="modal-static",Vn=".fixed-top, .fixed-bottom, .is-fixed, .sticky-top",zn=".sticky-top",Kn=function(){function t(t,e){this._config=this._getConfig(e),this._element=t,this._dialog=at.findOne(".modal-dialog",t),this._backdrop=null,this._isShown=!1,this._isBodyOverflowing=!1,this._ignoreBackdropClick=!1,this._isTransitioning=!1,this._scrollbarWidth=0,k(t,Dn,this)}var n=t.prototype;return n.toggle=function(t){return this._isShown?this.hide():this.show(t)},n.show=function(t){var e=this;if(!this._isShown&&!this._isTransitioning){this._element.classList.contains(qn)&&(this._isTransitioning=!0);var n=F.trigger(this._element,Mn,{relatedTarget:t});this._isShown||n.defaultPrevented||(this._isShown=!0,this._checkScrollbar(),this._setScrollbar(),this._adjustDialog(),this._setEscapeEvent(),this._setResizeEvent(),F.on(this._element,Yn,'[data-dismiss="modal"]',(function(t){return e.hide(t)})),F.on(this._dialog,Bn,(function(){F.one(e._element,"mouseup.dismiss.coreui.modal",(function(t){t.target===e._element&&(e._ignoreBackdropClick=!0)}))})),this._showBackdrop((function(){return e._showElement(t)})))}},n.hide=function(t){var e=this;if((t&&t.preventDefault(),this._isShown&&!this._isTransitioning)&&!F.trigger(this._element,"hide.coreui.modal").defaultPrevented){this._isShown=!1;var n=this._element.classList.contains(qn);if(n&&(this._isTransitioning=!0),this._setEscapeEvent(),this._setResizeEvent(),F.off(document,Hn),this._element.classList.remove(Qn),F.off(this._element,Yn),F.off(this._dialog,Bn),n){var i=p(this._element);F.one(this._element,c,(function(t){return e._hideModal(t)})),v(this._element,i)}else this._hideModal()}},n.dispose=function(){[window,this._element,this._dialog].forEach((function(t){return F.off(t,jn)})),F.off(document,Hn),C(this._element,Dn),this._config=null,this._element=null,this._dialog=null,this._backdrop=null,this._isShown=null,this._isBodyOverflowing=null,this._ignoreBackdropClick=null,this._isTransitioning=null,this._scrollbarWidth=null},n.handleUpdate=function(){this._adjustDialog()},n._getConfig=function(t){return t=o(o({},In),t),_(xn,t,Pn),t},n._showElement=function(t){var e=this,n=this._element.classList.contains(qn),i=at.findOne(".modal-body",this._dialog);this._element.parentNode&&this._element.parentNode.nodeType===Node.ELEMENT_NODE||document.body.appendChild(this._element),this._element.style.display="block",this._element.removeAttribute("aria-hidden"),this._element.setAttribute("aria-modal",!0),this._element.setAttribute("role","dialog"),this._element.scrollTop=0,i&&(i.scrollTop=0),n&&E(this._element),this._element.classList.add(Qn),this._config.focus&&this._enforceFocus();var o=function(){e._config.focus&&e._element.focus(),e._isTransitioning=!1,F.trigger(e._element,"shown.coreui.modal",{relatedTarget:t})};if(n){var r=p(this._dialog);F.one(this._dialog,c,o),v(this._dialog,r)}else o()},n._enforceFocus=function(){var t=this;F.off(document,Hn),F.on(document,Hn,(function(e){document===e.target||t._element===e.target||t._element.contains(e.target)||t._element.focus()}))},n._setEscapeEvent=function(){var t=this;this._isShown?F.on(this._element,Xn,(function(e){t._config.keyboard&&e.key===Nn?(e.preventDefault(),t.hide()):t._config.keyboard||e.key!==Nn||t._triggerBackdropTransition()})):F.off(this._element,Xn)},n._setResizeEvent=function(){var t=this;this._isShown?F.on(window,Wn,(function(){return t._adjustDialog()})):F.off(window,Wn)},n._hideModal=function(){var t=this;this._element.style.display="none",this._element.setAttribute("aria-hidden",!0),this._element.removeAttribute("aria-modal"),this._element.removeAttribute("role"),this._isTransitioning=!1,this._showBackdrop((function(){document.body.classList.remove(Un),t._resetAdjustments(),t._resetScrollbar(),F.trigger(t._element,Rn)}))},n._removeBackdrop=function(){this._backdrop.parentNode.removeChild(this._backdrop),this._backdrop=null},n._showBackdrop=function(t){var e=this,n=this._element.classList.contains(qn)?qn:"";if(this._isShown&&this._config.backdrop){if(this._backdrop=document.createElement("div"),this._backdrop.className="modal-backdrop",n&&this._backdrop.classList.add(n),document.body.appendChild(this._backdrop),F.on(this._element,Yn,(function(t){e._ignoreBackdropClick?e._ignoreBackdropClick=!1:t.target===t.currentTarget&&e._triggerBackdropTransition()})),n&&E(this._backdrop),this._backdrop.classList.add(Qn),!n)return void t();var i=p(this._backdrop);F.one(this._backdrop,c,t),v(this._backdrop,i)}else if(!this._isShown&&this._backdrop){this._backdrop.classList.remove(Qn);var o=function(){e._removeBackdrop(),t()};if(this._element.classList.contains(qn)){var r=p(this._backdrop);F.one(this._backdrop,c,o),v(this._backdrop,r)}else o()}else t()},n._triggerBackdropTransition=function(){var t=this;if("static"===this._config.backdrop){if(F.trigger(this._element,"hidePrevented.coreui.modal").defaultPrevented)return;var e=this._element.scrollHeight>document.documentElement.clientHeight;e||(this._element.style.overflowY="hidden"),this._element.classList.add(Fn);var n=p(this._dialog);F.off(this._element,c),F.one(this._element,c,(function(){t._element.classList.remove(Fn),e||(F.one(t._element,c,(function(){t._element.style.overflowY=""})),v(t._element,n))})),v(this._element,n),this._element.focus()}else this.hide()},n._adjustDialog=function(){var t=this._element.scrollHeight>document.documentElement.clientHeight;!this._isBodyOverflowing&&t&&(this._element.style.paddingLeft=this._scrollbarWidth+"px"),this._isBodyOverflowing&&!t&&(this._element.style.paddingRight=this._scrollbarWidth+"px")},n._resetAdjustments=function(){this._element.style.paddingLeft="",this._element.style.paddingRight=""},n._checkScrollbar=function(){var t=document.body.getBoundingClientRect();this._isBodyOverflowing=Math.round(t.left+t.right)<window.innerWidth,this._scrollbarWidth=this._getScrollbarWidth()},n._setScrollbar=function(){var t=this;if(this._isBodyOverflowing){at.find(Vn).forEach((function(e){var n=e.style.paddingRight,i=window.getComputedStyle(e)["padding-right"];bt.setDataAttribute(e,"padding-right",n),e.style.paddingRight=parseFloat(i)+t._scrollbarWidth+"px"})),at.find(zn).forEach((function(e){var n=e.style.marginRight,i=window.getComputedStyle(e)["margin-right"];bt.setDataAttribute(e,"margin-right",n),e.style.marginRight=parseFloat(i)-t._scrollbarWidth+"px"}));var e=document.body.style.paddingRight,n=window.getComputedStyle(document.body)["padding-right"];bt.setDataAttribute(document.body,"padding-right",e),document.body.style.paddingRight=parseFloat(n)+this._scrollbarWidth+"px"}document.body.classList.add(Un)},n._resetScrollbar=function(){at.find(Vn).forEach((function(t){var e=bt.getDataAttribute(t,"padding-right");"undefined"!=typeof e&&(bt.removeDataAttribute(t,"padding-right"),t.style.paddingRight=e)})),at.find(".sticky-top").forEach((function(t){var e=bt.getDataAttribute(t,"margin-right");"undefined"!=typeof e&&(bt.removeDataAttribute(t,"margin-right"),t.style.marginRight=e)}));var t=bt.getDataAttribute(document.body,"padding-right");"undefined"==typeof t?document.body.style.paddingRight="":(bt.removeDataAttribute(document.body,"padding-right"),document.body.style.paddingRight=t)},n._getScrollbarWidth=function(){var t=document.createElement("div");t.className="modal-scrollbar-measure",document.body.appendChild(t);var e=t.getBoundingClientRect().width-t.clientWidth;return document.body.removeChild(t),e},t.jQueryInterface=function(e,n){return this.each((function(){var i=O(this,Dn),r=o(o(o({},In),bt.getDataAttributes(this)),"object"==typeof e&&e?e:{});if(i||(i=new t(this,r)),"string"==typeof e){if("undefined"==typeof i[e])throw new TypeError('No method 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Jn=["background","cite","href","itemtype","longdesc","poster","src","xlink:href"],Zn=/^(?:(?:https?|mailto|ftp|tel|file):|[^#&/:?]*(?:[#/?]|$))/gi,ti=/^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[\d+/a-z]+=*$/i,ei={"*":["class","dir","id","lang","role",/^aria-[\w-]*$/i],a:["target","href","title","rel"],area:[],b:[],br:[],col:[],code:[],div:[],em:[],hr:[],h1:[],h2:[],h3:[],h4:[],h5:[],h6:[],i:[],img:["src","srcset","alt","title","width","height"],li:[],ol:[],p:[],pre:[],s:[],small:[],span:[],sub:[],sup:[],strong:[],u:[],ul:[]};function ni(t,e,n){var i;if(!t.length)return t;if(n&&"function"==typeof n)return n(t);for(var o=(new window.DOMParser).parseFromString(t,"text/html"),r=Object.keys(e),s=(i=[]).concat.apply(i,o.body.querySelectorAll("*")),a=function(t,n){var i,o=s[t],a=o.nodeName.toLowerCase();if(-1===r.indexOf(a))return o.parentNode.removeChild(o),"continue";var l=(i=[]).concat.apply(i,o.attributes),c=[].concat(e["*"]||[],e[a]||[]);l.forEach((function(t){(function(t,e){var n=t.nodeName.toLowerCase();if(-1!==e.indexOf(n))return-1===Jn.indexOf(n)||Boolean(t.nodeValue.match(Zn)||t.nodeValue.match(ti));for(var i=e.filter((function(t){return t instanceof RegExp})),o=0,r=i.length;o<r;o++)if(n.match(i[o]))return!0;return!1})(t,c)||o.removeAttribute(t.nodeName)}))},l=0,c=s.length;l<c;l++)a(l);return o.body.innerHTML}var ii="tooltip",oi="coreui.tooltip",ri="."+oi,si=new RegExp("(^|\\s)bs-tooltip\\S+","g"),ai=["sanitize","whiteList","sanitizeFn"],li={animation:"boolean",template:"string",title:"(string|element|function)",trigger:"string",delay:"(number|object)",html:"boolean",selector:"(string|boolean)",placement:"(string|function)",offset:"(array|function)",container:"(string|element|boolean)",boundary:"(string|element)",sanitize:"boolean",sanitizeFn:"(null|function)",whiteList:"object",popperConfig:"(null|object)"},ci={AUTO:"auto",TOP:"top",RIGHT:"right",BOTTOM:"bottom",LEFT:"left"},ui={animation:!0,template:'<div class="tooltip" role="tooltip"><div class="tooltip-arrow"></div><div class="tooltip-inner"></div></div>',trigger:"hover 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n.enable=function(){this._isEnabled=!0},n.disable=function(){this._isEnabled=!1},n.toggleEnabled=function(){this._isEnabled=!this._isEnabled},n.toggle=function(t){if(this._isEnabled)if(t){var e=this.constructor.DATA_KEY,n=O(t.delegateTarget,e);n||(n=new this.constructor(t.delegateTarget,this._getDelegateConfig()),k(t.delegateTarget,e,n)),n._activeTrigger.click=!n._activeTrigger.click,n._isWithActiveTrigger()?n._enter(null,n):n._leave(null,n)}else{if(this.getTipElement().classList.contains(di))return void this._leave(null,this);this._enter(null,this)}},n.dispose=function(){clearTimeout(this._timeout),C(this.element,this.constructor.DATA_KEY),F.off(this.element,this.constructor.EVENT_KEY),F.off(this.element.closest(".modal"),"hide.coreui.modal",this._hideModalHandler),this.tip&&this.tip.parentNode.removeChild(this.tip),this._isEnabled=null,this._timeout=null,this._hoverState=null,this._activeTrigger=null,this._popper&&this._popper.destroy(),this._popper=null,this.element=null,this.config=null,this.tip=null},n.show=function(){var t=this;if("none"===this.element.style.display)throw new Error("Please use show on visible elements");if(this.isWithContent()&&this._isEnabled){var e=F.trigger(this.element,this.constructor.Event.SHOW),n=y(this.element),i=null===n?this.element.ownerDocument.documentElement.contains(this.element):n.contains(this.element);if(e.defaultPrevented||!i)return;var o=this.getTipElement(),r=u(this.constructor.NAME);o.setAttribute("id",r),this.element.setAttribute("aria-describedby",r),this.setContent(),this.config.animation&&o.classList.add(hi);var s,a="function"==typeof this.config.placement?this.config.placement.call(this,o,this.element):this.config.placement,l=this._getAttachment(a),f=this._getContainer();if(k(o,this.constructor.DATA_KEY,this),this.element.ownerDocument.documentElement.contains(this.tip)||f.appendChild(o),F.trigger(this.element,this.constructor.Event.INSERTED),this._popper=an(this.element,o,this._getPopperConfig(l)),o.classList.add(di),"ontouchstart"in document.documentElement)(s=[]).concat.apply(s,document.body.children).forEach((function(t){F.on(t,"mouseover",(function(){}))}));var h=function(){t.config.animation&&t._fixTransition();var e=t._hoverState;t._hoverState=null,F.trigger(t.element,t.constructor.Event.SHOWN),e===gi&&t._leave(null,t)};if(this.tip.classList.contains(hi)){var d=p(this.tip);F.one(this.tip,c,h),v(this.tip,d)}else h()}},n.hide=function(){var t=this,e=this.getTipElement(),n=function(){t._hoverState!==pi&&e.parentNode&&e.parentNode.removeChild(e),t._cleanTipClass(),t.element.removeAttribute("aria-describedby"),F.trigger(t.element,t.constructor.Event.HIDDEN),t._popper.destroy()};if(!F.trigger(this.element,this.constructor.Event.HIDE).defaultPrevented){var i;if(e.classList.remove(di),"ontouchstart"in document.documentElement)(i=[]).concat.apply(i,document.body.children).forEach((function(t){return F.off(t,"mouseover",w)}));if(this._activeTrigger.click=!1,this._activeTrigger.focus=!1,this._activeTrigger.hover=!1,this.tip.classList.contains(hi)){var o=p(e);F.one(e,c,n),v(e,o)}else n();this._hoverState=""}},n.update=function(){null!==this._popper&&this._popper.update()},n.isWithContent=function(){return Boolean(this.getTitle())},n.getTipElement=function(){if(this.tip)return this.tip;var t=document.createElement("div");return t.innerHTML=this.config.template,this.tip=t.children[0],this.tip},n.setContent=function(){var t=this.getTipElement();this.setElementContent(at.findOne(".tooltip-inner",t),this.getTitle()),t.classList.remove(hi,di)},n.setElementContent=function(t,e){if(null!==t)return"object"==typeof e&&m(e)?(e.jquery&&(e=e[0]),void(this.config.html?e.parentNode!==t&&(t.innerHTML="",t.appendChild(e)):t.textContent=e.textContent)):void(this.config.html?(this.config.sanitize&&(e=ni(e,this.config.whiteList,this.config.sanitizeFn)),t.innerHTML=e):t.textContent=e)},n.getTitle=function(){var t=this.element.getAttribute("data-original-title");return t||(t="function"==typeof this.config.title?this.config.title.call(this.element):this.config.title),t},n._getPopperConfig=function(t){var e=this;return o(o({},{placement:t,modifiers:[{name:"offset",options:{offset:this._getOffset()}},{name:"arrow",options:{element:"."+this.constructor.NAME+"-arrow"}},{name:"preventOverflow",options:{boundary:this.config.boundary}}],onFirstUpdate:function(t){t.originalPlacement!==t.placement&&e._popper.update()}}),this.config.popperConfig)},n._getOffset=function(){var t=this;return"function"==typeof this.config.offset?function(e){var n=e.placement,i=e.reference,o=e.popper;return t.config.offset({placement:n,reference:i,popper:o})}:this.config.offset},n._getContainer=function(){return!1===this.config.container?document.body:m(this.config.container)?this.config.container:at.findOne(this.config.container)},n._getAttachment=function(t){return ci[t.toUpperCase()]},n._setListeners=function(){var t=this;this.config.trigger.split(" ").forEach((function(e){if("click"===e)F.on(t.element,t.constructor.Event.CLICK,t.config.selector,(function(e){return t.toggle(e)}));else if("manual"!==e){var n=e===mi?t.constructor.Event.MOUSEENTER:t.constructor.Event.FOCUSIN,i=e===mi?t.constructor.Event.MOUSELEAVE:t.constructor.Event.FOCUSOUT;F.on(t.element,n,t.config.selector,(function(e){return t._enter(e)})),F.on(t.element,i,t.config.selector,(function(e){return t._leave(e)}))}})),this._hideModalHandler=function(){t.element&&t.hide()},F.on(this.element.closest(".modal"),"hide.coreui.modal",this._hideModalHandler),this.config.selector?this.config=o(o({},this.config),{},{trigger:"manual",selector:""}):this._fixTitle()},n._fixTitle=function(){var t=typeof this.element.getAttribute("data-original-title");(this.element.getAttribute("title")||"string"!==t)&&(this.element.setAttribute("data-original-title",this.element.getAttribute("title")||""),this.element.setAttribute("title",""))},n._enter=function(t,e){var n=this.constructor.DATA_KEY;(e=e||O(t.delegateTarget,n))||(e=new 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s=!1;t.settings.useBothWheelAxes?t.scrollbarYActive&&!t.scrollbarXActive?(r?e.scrollTop-=r*t.settings.wheelSpeed:e.scrollTop+=o*t.settings.wheelSpeed,s=!0):t.scrollbarXActive&&!t.scrollbarYActive&&(o?e.scrollLeft+=o*t.settings.wheelSpeed:e.scrollLeft-=r*t.settings.wheelSpeed,s=!0):(e.scrollTop-=r*t.settings.wheelSpeed,e.scrollLeft+=o*t.settings.wheelSpeed),uo(t),(s=s||function(n,i){var o=Math.floor(e.scrollTop),r=0===e.scrollTop,s=o+e.offsetHeight===e.scrollHeight,a=0===e.scrollLeft,l=e.scrollLeft+e.offsetWidth===e.scrollWidth;return!(Math.abs(i)>Math.abs(n)?r||s:a||l)||!t.settings.wheelPropagation}(o,r))&&!n.ctrlKey&&(n.stopPropagation(),n.preventDefault())}}"undefined"!=typeof window.onwheel?t.event.bind(e,"wheel",n):"undefined"!=typeof window.onmousewheel&&t.event.bind(e,"mousewheel",n)},touch:function(t){if(co.supportsTouch||co.supportsIePointer){var e=t.element,n={},i=0,o={},r=null;co.supportsTouch?(t.event.bind(e,"touchstart",c),t.event.bind(e,"touchmove",u),t.event.bind(e,"touchend",f)):co.supportsIePointer&&(window.PointerEvent?(t.event.bind(e,"pointerdown",c),t.event.bind(e,"pointermove",u),t.event.bind(e,"pointerup",f)):window.MSPointerEvent&&(t.event.bind(e,"MSPointerDown",c),t.event.bind(e,"MSPointerMove",u),t.event.bind(e,"MSPointerUp",f)))}function s(n,i){e.scrollTop-=i,e.scrollLeft-=n,uo(t)}function a(t){return t.targetTouches?t.targetTouches[0]:t}function l(t){return(!t.pointerType||"pen"!==t.pointerType||0!==t.buttons)&&(!(!t.targetTouches||1!==t.targetTouches.length)||!(!t.pointerType||"mouse"===t.pointerType||t.pointerType===t.MSPOINTER_TYPE_MOUSE))}function c(t){if(l(t)){var e=a(t);n.pageX=e.pageX,n.pageY=e.pageY,i=(new Date).getTime(),null!==r&&clearInterval(r)}}function u(r){if(l(r)){var c=a(r),u={pageX:c.pageX,pageY:c.pageY},f=u.pageX-n.pageX,h=u.pageY-n.pageY;if(function(t,n,i){if(!e.contains(t))return!1;for(var o=t;o&&o!==e;){if(o.classList.contains(Ji.consuming))return!0;var r=Ui(o);if(i&&r.overflowY.match(/(scroll|auto)/)){var s=o.scrollHeight-o.clientHeight;if(s>0&&(o.scrollTop>0&&i<0||o.scrollTop<s&&i>0))return!0}if(n&&r.overflowX.match(/(scroll|auto)/)){var a=o.scrollWidth-o.clientWidth;if(a>0&&(o.scrollLeft>0&&n<0||o.scrollLeft<a&&n>0))return!0}o=o.parentNode}return!1}(r.target,f,h))return;s(f,h),n=u;var d=(new Date).getTime(),p=d-i;p>0&&(o.x=f/p,o.y=h/p,i=d),function(n,i){var o=Math.floor(e.scrollTop),r=e.scrollLeft,s=Math.abs(n),a=Math.abs(i);if(a>s){if(i<0&&o===t.contentHeight-t.containerHeight||i>0&&0===o)return 0===window.scrollY&&i>0&&co.isChrome}else if(s>a&&(n<0&&r===t.contentWidth-t.containerWidth||n>0&&0===r))return!0;return!0}(f,h)&&r.preventDefault()}}function f(){t.settings.swipeEasing&&(clearInterval(r),r=setInterval((function(){t.isInitialized?clearInterval(r):o.x||o.y?Math.abs(o.x)<.01&&Math.abs(o.y)<.01?clearInterval(r):(s(30*o.x,30*o.y),o.x*=.8,o.y*=.8):clearInterval(r)}),10))}}},go=function(t,e){var n=this;if(void 0===e&&(e={}),"string"==typeof t&&(t=document.querySelector(t)),!t||!t.nodeName)throw new Error("no element is specified to initialize PerfectScrollbar");for(var i in this.element=t,t.classList.add($i),this.settings={handlers:["click-rail","drag-thumb","keyboard","wheel","touch"],maxScrollbarLength:null,minScrollbarLength:null,scrollingThreshold:1e3,scrollXMarginOffset:0,scrollYMarginOffset:0,suppressScrollX:!1,suppressScrollY:!1,swipeEasing:!0,useBothWheelAxes:!1,wheelPropagation:!0,wheelSpeed:1},e)this.settings[i]=e[i];this.containerWidth=null,this.containerHeight=null,this.contentWidth=null,this.contentHeight=null;var o,r,s=function(){return t.classList.add(Zi.focus)},a=function(){return t.classList.remove(Zi.focus)};this.isRtl="rtl"===Ui(t).direction,!0===this.isRtl&&t.classList.add(Gi),this.isNegativeScroll=(r=t.scrollLeft,t.scrollLeft=-1,o=t.scrollLeft<0,t.scrollLeft=r,o),this.negativeScrollAdjustment=this.isNegativeScroll?t.scrollWidth-t.clientWidth:0,this.event=new ro,this.ownerDocument=t.ownerDocument||document,this.scrollbarXRail=Qi(Ji.rail("x")),t.appendChild(this.scrollbarXRail),this.scrollbarX=Qi(Ji.thumb("x")),this.scrollbarXRail.appendChild(this.scrollbarX),this.scrollbarX.setAttribute("tabindex",0),this.event.bind(this.scrollbarX,"focus",s),this.event.bind(this.scrollbarX,"blur",a),this.scrollbarXActive=null,this.scrollbarXWidth=null,this.scrollbarXLeft=null;var l=Ui(this.scrollbarXRail);this.scrollbarXBottom=parseInt(l.bottom,10),isNaN(this.scrollbarXBottom)?(this.isScrollbarXUsingBottom=!1,this.scrollbarXTop=lo(l.top)):this.isScrollbarXUsingBottom=!0,this.railBorderXWidth=lo(l.borderLeftWidth)+lo(l.borderRightWidth),qi(this.scrollbarXRail,{display:"block"}),this.railXMarginWidth=lo(l.marginLeft)+lo(l.marginRight),qi(this.scrollbarXRail,{display:""}),this.railXWidth=null,this.railXRatio=null,this.scrollbarYRail=Qi(Ji.rail("y")),t.appendChild(this.scrollbarYRail),this.scrollbarY=Qi(Ji.thumb("y")),this.scrollbarYRail.appendChild(this.scrollbarY),this.scrollbarY.setAttribute("tabindex",0),this.event.bind(this.scrollbarY,"focus",s),this.event.bind(this.scrollbarY,"blur",a),this.scrollbarYActive=null,this.scrollbarYHeight=null,this.scrollbarYTop=null;var c=Ui(this.scrollbarYRail);this.scrollbarYRight=parseInt(c.right,10),isNaN(this.scrollbarYRight)?(this.isScrollbarYUsingRight=!1,this.scrollbarYLeft=lo(c.left)):this.isScrollbarYUsingRight=!0,this.scrollbarYOuterWidth=this.isRtl?function(t){var e=Ui(t);return lo(e.width)+lo(e.paddingLeft)+lo(e.paddingRight)+lo(e.borderLeftWidth)+lo(e.borderRightWidth)}(this.scrollbarY):null,this.railBorderYWidth=lo(c.borderTopWidth)+lo(c.borderBottomWidth),qi(this.scrollbarYRail,{display:"block"}),this.railYMarginHeight=lo(c.marginTop)+lo(c.marginBottom),qi(this.scrollbarYRail,{display:""}),this.railYHeight=null,this.railYRatio=null,this.reach={x:t.scrollLeft<=0?"start":t.scrollLeft>=this.contentWidth-this.containerWidth?"end":null,y:t.scrollTop<=0?"start":t.scrollTop>=this.contentHeight-this.containerHeight?"end":null},this.isAlive=!0,this.settings.handlers.forEach((function(t){return po[t](n)})),this.lastScrollTop=Math.floor(t.scrollTop),this.lastScrollLeft=t.scrollLeft,this.event.bind(this.element,"scroll",(function(t){return n.onScroll(t)})),uo(this)};go.prototype.update=function(){this.isAlive&&(this.negativeScrollAdjustment=this.isNegativeScroll?this.element.scrollWidth-this.element.clientWidth:0,qi(this.scrollbarXRail,{display:"block"}),qi(this.scrollbarYRail,{display:"block"}),this.railXMarginWidth=lo(Ui(this.scrollbarXRail).marginLeft)+lo(Ui(this.scrollbarXRail).marginRight),this.railYMarginHeight=lo(Ui(this.scrollbarYRail).marginTop)+lo(Ui(this.scrollbarYRail).marginBottom),qi(this.scrollbarXRail,{display:"none"}),qi(this.scrollbarYRail,{display:"none"}),uo(this),ao(this,"top",0,!1,!0),ao(this,"left",0,!1,!0),qi(this.scrollbarXRail,{display:""}),qi(this.scrollbarYRail,{display:""}))},go.prototype.onScroll=function(t){this.isAlive&&(uo(this),ao(this,"top",this.element.scrollTop-this.lastScrollTop),ao(this,"left",this.element.scrollLeft-this.lastScrollLeft),this.lastScrollTop=Math.floor(this.element.scrollTop),this.lastScrollLeft=this.element.scrollLeft)},go.prototype.destroy=function(){this.isAlive&&(this.event.unbindAll(),zi(this.scrollbarX),zi(this.scrollbarY),zi(this.scrollbarXRail),zi(this.scrollbarYRail),this.removePsClasses(),this.element=null,this.scrollbarX=null,this.scrollbarY=null,this.scrollbarXRail=null,this.scrollbarYRail=null,this.isAlive=!1)},go.prototype.removePsClasses=function(){this.element.className=this.element.className.split(" ").filter((function(t){return!t.match(/^ps([-_].+|)$/)})).join(" ")};var mo="sidebar",vo="coreui.sidebar",_o={activeLinksExact:!0,breakpoints:{xs:"c-sidebar-show",sm:"c-sidebar-sm-show",md:"c-sidebar-md-show",lg:"c-sidebar-lg-show",xl:"c-sidebar-xl-show",xxl:"c-sidebar-xxl-show"},dropdownAccordion:!0},bo={activeLinksExact:"boolean",breakpoints:"object",dropdownAccordion:"(string|boolean)"},yo="c-active",wo="c-sidebar-nav-dropdown",Eo="c-show",Lo="c-sidebar-minimized",To="c-sidebar-unfoldable",ko="click.coreui.sidebar.data-api",Oo=".c-sidebar-nav-dropdown-toggle",Co=".c-sidebar-nav-dropdown",So=".c-sidebar-nav-link",Ao=".c-sidebar-nav",xo=".c-sidebar",Do=function(){function t(t,e){if("undefined"==typeof go)throw new TypeError("CoreUI's sidebar require Perfect Scrollbar");this._element=t,this._config=this._getConfig(e),this._open=this._isVisible(),this._mobile=this._isMobile(),this._overlaid=this._isOverlaid(),this._minimize=this._isMinimized(),this._unfoldable=this._isUnfoldable(),this._setActiveLink(),this._ps=null,this._backdrop=null,this._psInit(),this._addEventListeners(),k(t,vo,this)}var n=t.prototype;return n.open=function(t){var e=this;F.trigger(this._element,"open.coreui.sidebar"),this._isMobile()?(this._addClassName(this._firstBreakpointClassName()),this._showBackdrop(),F.one(this._element,c,(function(){e._addClickOutListener()}))):t?(this._addClassName(this._getBreakpointClassName(t)),this._isOverlaid()&&F.one(this._element,c,(function(){e._addClickOutListener()}))):(this._addClassName(this._firstBreakpointClassName()),this._isOverlaid()&&F.one(this._element,c,(function(){e._addClickOutListener()})));var n=p(this._element);F.one(this._element,c,(function(){!0===e._isVisible()&&(e._open=!0,F.trigger(e._element,"opened.coreui.sidebar"))})),v(this._element,n)},n.close=function(t){var e=this;F.trigger(this._element,"close.coreui.sidebar"),this._isMobile()?(this._element.classList.remove(this._firstBreakpointClassName()),this._removeBackdrop(),this._removeClickOutListener()):t?(this._element.classList.remove(this._getBreakpointClassName(t)),this._isOverlaid()&&this._removeClickOutListener()):(this._element.classList.remove(this._firstBreakpointClassName()),this._isOverlaid()&&this._removeClickOutListener());var n=p(this._element);F.one(this._element,c,(function(){!1===e._isVisible()&&(e._open=!1,F.trigger(e._element,"closed.coreui.sidebar"))})),v(this._element,n)},n.toggle=function(t){this._open?this.close(t):this.open(t)},n.minimize=function(){this._isMobile()||(this._addClassName(Lo),this._minimize=!0,this._psDestroy())},n.unfoldable=function(){this._isMobile()||(this._addClassName(To),this._unfoldable=!0)},n.reset=function(){this._element.classList.contains(Lo)&&(this._element.classList.remove(Lo),this._minimize=!1,F.one(this._element,c,this._psInit())),this._element.classList.contains(To)&&(this._element.classList.remove(To),this._unfoldable=!1)},n._getConfig=function(t){return t=o(o(o({},this.constructor.Default),bt.getDataAttributes(this._element)),t),_(mo,t,this.constructor.DefaultType),t},n._isMobile=function(){return Boolean(window.getComputedStyle(this._element,null).getPropertyValue("--is-mobile"))},n._isIOS=function(){var t=["iPad Simulator","iPhone Simulator","iPod Simulator","iPad","iPhone","iPod"];if(Boolean(navigator.platform))for(;t.length;)if(navigator.platform===t.pop())return!0;return!1},n._isMinimized=function(){return this._element.classList.contains(Lo)},n._isOverlaid=function(){return this._element.classList.contains("c-sidebar-overlaid")},n._isUnfoldable=function(){return this._element.classList.contains(To)},n._isVisible=function(){var t=this._element.getBoundingClientRect();return t.top>=0&&t.left>=0&&t.bottom<=(window.innerHeight||document.documentElement.clientHeight)&&t.right<=(window.innerWidth||document.documentElement.clientWidth)},n._addClassName=function(t){this._element.classList.add(t)},n._firstBreakpointClassName=function(){return Object.keys(_o.breakpoints).map((function(t){return _o.breakpoints[t]}))[0]},n._getBreakpointClassName=function(t){return _o.breakpoints[t]},n._removeBackdrop=function(){this._backdrop&&(this._backdrop.parentNode.removeChild(this._backdrop),this._backdrop=null)},n._showBackdrop=function(){this._backdrop||(this._backdrop=document.createElement("div"),this._backdrop.className="c-sidebar-backdrop",this._backdrop.classList.add("c-fade"),document.body.appendChild(this._backdrop),E(this._backdrop),this._backdrop.classList.add(Eo))},n._clickOutListener=function(t,e){null===t.target.closest(xo)&&(t.preventDefault(),t.stopPropagation(),e.close())},n._addClickOutListener=function(){var t=this;F.on(document,ko,(function(e){t._clickOutListener(e,t)}))},n._removeClickOutListener=function(){F.off(document,ko)},n._getAllSiblings=function(t,e){var n=[];t=t.parentNode.firstChild;do{3!==t.nodeType&&8!==t.nodeType&&(e&&!e(t)||n.push(t))}while(t=t.nextSibling);return n},n._toggleDropdown=function(t,e){var n=t.target;n.classList.contains("c-sidebar-nav-dropdown-toggle")||(n=n.closest(Oo));var i=n.closest(Ao).dataset;"undefined"!=typeof i.dropdownAccordion&&(_o.dropdownAccordion=JSON.parse(i.dropdownAccordion)),!0===_o.dropdownAccordion&&this._getAllSiblings(n.parentElement,(function(t){return Boolean(t.classList.contains(wo))})).forEach((function(t){t!==n.parentNode&&t.classList.contains(wo)&&t.classList.remove(Eo)})),n.parentNode.classList.toggle(Eo),e._psUpdate()},n._psInit=function(){this._element.querySelector(Ao)&&!this._isIOS()&&(this._ps=new go(this._element.querySelector(Ao),{suppressScrollX:!0,wheelPropagation:!1}))},n._psUpdate=function(){this._ps&&this._ps.update()},n._psDestroy=function(){this._ps&&(this._ps.destroy(),this._ps=null)},n._getParents=function(t,e){for(var n=[];t&&t!==document;t=t.parentNode)e?t.matches(e)&&n.push(t):n.push(t);return n},n._setActiveLink=function(){var t=this;Array.from(this._element.querySelectorAll(So)).forEach((function(e){var n=String(window.location);(/\?.*=/.test(n)||/\?./.test(n))&&(n=n.split("?")[0]),/#./.test(n)&&(n=n.split("#")[0]);var i=e.closest(Ao).dataset;"undefined"!=typeof i.activeLinksExact&&(_o.activeLinksExact=JSON.parse(i.activeLinksExact)),_o.activeLinksExact&&e.href===n&&(e.classList.add(yo),Array.from(t._getParents(e,Co)).forEach((function(t){t.classList.add(Eo)}))),!_o.activeLinksExact&&e.href.startsWith(n)&&(e.classList.add(yo),Array.from(t._getParents(e,Co)).forEach((function(t){t.classList.add(Eo)})))}))},n._addEventListeners=function(){var t=this;this._mobile&&this._open&&this._addClickOutListener(),this._overlaid&&this._open&&this._addClickOutListener(),F.on(this._element,"classtoggle",(function(e){if(e.detail.className===Lo&&(t._element.classList.contains(Lo)?t.minimize():t.reset()),e.detail.className===To&&(t._element.classList.contains(To)?t.unfoldable():t.reset()),"undefined"!=typeof Object.keys(_o.breakpoints).find((function(t){return _o.breakpoints[t]===e.detail.className}))){var n=e.detail.className,i=Object.keys(_o.breakpoints).find((function(t){return _o.breakpoints[t]===n}));e.detail.add?t.open(i):t.close(i)}})),F.on(this._element,ko,Oo,(function(e){e.preventDefault(),t._toggleDropdown(e,t)})),F.on(this._element,ko,So,(function(){t._isMobile()&&t.close()}))},t._sidebarInterface=function(e,n){var i=O(e,vo);if(i||(i=new t(e,"object"==typeof n&&n)),"string"==typeof n){if("undefined"==typeof i[n])throw new TypeError('No method named "'+n+'"');i[n]()}},t.jQueryInterface=function(e){return this.each((function(){t._sidebarInterface(this,e)}))},t.getInstance=function(t){return O(t,vo)},e(t,null,[{key:"VERSION",get:function(){return"3.2.2"}},{key:"Default",get:function(){return _o}},{key:"DefaultType",get:function(){return bo}}]),t}();F.on(window,"load.coreui.sidebar.data-api",(function(){Array.from(document.querySelectorAll(xo)).forEach((function(t){Do._sidebarInterface(t)}))}));var jo=L();if(jo){var No=jo.fn.sidebar;jo.fn.sidebar=Do.jQueryInterface,jo.fn.sidebar.Constructor=Do,jo.fn.sidebar.noConflict=function(){return jo.fn.sidebar=No,Do.jQueryInterface}}var Io="coreui.tab",Po="active",Ro="fade",Mo="show",Ho=".active",Wo=":scope > li > .active",Yo=function(){function t(t){this._element=t,k(this._element,Io,this)}var n=t.prototype;return n.show=function(){var t=this;if(!(this._element.parentNode&&this._element.parentNode.nodeType===Node.ELEMENT_NODE&&this._element.classList.contains(Po)||this._element.classList.contains("disabled"))){var e,n=d(this._element),i=this._element.closest(".nav, .list-group");if(i){var o="UL"===i.nodeName||"OL"===i.nodeName?Wo:Ho;e=(e=at.find(o,i))[e.length-1]}var r=null;if(e&&(r=F.trigger(e,"hide.coreui.tab",{relatedTarget:this._element})),!(F.trigger(this._element,"show.coreui.tab",{relatedTarget:e}).defaultPrevented||null!==r&&r.defaultPrevented)){this._activate(this._element,i);var s=function(){F.trigger(e,"hidden.coreui.tab",{relatedTarget:t._element}),F.trigger(t._element,"shown.coreui.tab",{relatedTarget:e})};n?this._activate(n,n.parentNode,s):s()}}},n.dispose=function(){C(this._element,Io),this._element=null},n._activate=function(t,e,n){var i=this,o=(!e||"UL"!==e.nodeName&&"OL"!==e.nodeName?at.children(e,Ho):at.find(Wo,e))[0],r=n&&o&&o.classList.contains(Ro),s=function(){return i._transitionComplete(t,o,n)};if(o&&r){var a=p(o);o.classList.remove(Mo),F.one(o,c,s),v(o,a)}else s()},n._transitionComplete=function(t,e,n){if(e){e.classList.remove(Po);var i=at.findOne(":scope > .dropdown-menu .active",e.parentNode);i&&i.classList.remove(Po),"tab"===e.getAttribute("role")&&e.setAttribute("aria-selected",!1)}(t.classList.add(Po),"tab"===t.getAttribute("role")&&t.setAttribute("aria-selected",!0),E(t),t.classList.contains(Ro)&&t.classList.add(Mo),t.parentNode&&t.parentNode.classList.contains("dropdown-menu"))&&(t.closest(".dropdown")&&at.find(".dropdown-toggle").forEach((function(t){return t.classList.add(Po)})),t.setAttribute("aria-expanded",!0));n&&n()},t.jQueryInterface=function(e){return this.each((function(){var n=O(this,Io)||new t(this);if("string"==typeof e){if("undefined"==typeof n[e])throw new TypeError('No method named "'+e+'"');n[e]()}}))},t.getInstance=function(t){return O(t,Io)},e(t,null,[{key:"VERSION",get:function(){return"3.2.2"}}]),t}();F.on(document,"click.coreui.tab.data-api",'[data-toggle="tab"], [data-toggle="pill"], [data-toggle="list"]',(function(t){t.preventDefault(),(O(this,Io)||new Yo(this)).show()}));var Xo=L();if(Xo){var Bo=Xo.fn.tab;Xo.fn.tab=Yo.jQueryInterface,Xo.fn.tab.Constructor=Yo,Xo.fn.tab.noConflict=function(){return Xo.fn.tab=Bo,Yo.jQueryInterface}}var Uo,qo,Qo,Fo,Vo,zo="toast",Ko="coreui.toast",$o="."+Ko,Go="click.dismiss"+$o,Jo="hide",Zo="show",tr="showing",er={animation:"boolean",autohide:"boolean",delay:"number"},nr={animation:!0,autohide:!0,delay:5e3},ir=function(){function t(t,e){this._element=t,this._config=this._getConfig(e),this._timeout=null,this._setListeners(),k(t,Ko,this)}var n=t.prototype;return n.show=function(){var t=this;if(!F.trigger(this._element,"show.coreui.toast").defaultPrevented){this._clearTimeout(),this._config.animation&&this._element.classList.add("fade");var e=function(){t._element.classList.remove(tr),t._element.classList.add(Zo),F.trigger(t._element,"shown.coreui.toast"),t._config.autohide&&(t._timeout=setTimeout((function(){t.hide()}),t._config.delay))};if(this._element.classList.remove(Jo),E(this._element),this._element.classList.add(tr),this._config.animation){var n=p(this._element);F.one(this._element,c,e),v(this._element,n)}else e()}},n.hide=function(){var t=this;if(this._element.classList.contains(Zo)&&!F.trigger(this._element,"hide.coreui.toast").defaultPrevented){var e=function(){t._element.classList.add(Jo),F.trigger(t._element,"hidden.coreui.toast")};if(this._element.classList.remove(Zo),this._config.animation){var n=p(this._element);F.one(this._element,c,e),v(this._element,n)}else e()}},n.dispose=function(){this._clearTimeout(),this._element.classList.contains(Zo)&&this._element.classList.remove(Zo),F.off(this._element,Go),C(this._element,Ko),this._element=null,this._config=null},n._getConfig=function(t){return 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a.call(n,(function(e){s(t,e)}),i)}o[t]=n,0==--r&&e(o)}catch(t){i(t)}}for(var a=0;a<o.length;a++)s(a,o[a])}))},o.resolve=function(t){return t&&"object"==typeof t&&t.constructor===o?t:new o((function(e){e(t)}))},o.reject=function(t){return new o((function(e,n){n(t)}))},o.race=function(t){return new o((function(e,i){if(!n(t))return i(new TypeError("Promise.race accepts an array"));for(var r=0,s=t.length;r<s;r++)o.resolve(t[r]).then(e,i)}))},o._immediateFn="function"==typeof setImmediate&&function(t){setImmediate(t)}||function(t){e(t,0)},o._unhandledRejectionFn=function(t){"undefined"!=typeof console&&console&&console.warn("Possible Unhandled Promise Rejection:",t)};var f=function(){if("undefined"!=typeof self)return self;if("undefined"!=typeof window)return window;if("undefined"!=typeof __webpack_require__.g)return __webpack_require__.g;throw new Error("unable to locate global object")}();"Promise"in f?f.Promise.prototype.finally||(f.Promise.prototype.finally=t):f.Promise=o}, true?Vo():0,function(){function t(t,e){e=e||{bubbles:!1,cancelable:!1,detail:void 0};var n=document.createEvent("CustomEvent");return n.initCustomEvent(t,e.bubbles,e.cancelable,e.detail),n}"function"==typeof window.CustomEvent||this.CustomEvent.toString().indexOf("CustomEventConstructor")>-1||(t.prototype=window.Event.prototype,window.CustomEvent=t)}(),{AsyncLoad:tt,Alert:ot,Button:pt,Carousel:Dt,ClassToggler:Xt,Collapse:te,Dropdown:Cn,Modal:Kn,Popover:Si,Scrollspy:Yi,Sidebar:Do,Tab:Yo,Toast:ir,Tooltip:_i}}));
//# sourceMappingURL=coreui.bundle.min.js.map

/***/ }),

/***/ "./resources/js/app.js":
/*!*****************************!*\
  !*** ./resources/js/app.js ***!
  \*****************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

__webpack_require__(/*! ./bootstrap */ "./resources/js/bootstrap.js");

__webpack_require__(/*! @coreui/coreui/dist/js/coreui.bundle.min */ "./node_modules/@coreui/coreui/dist/js/coreui.bundle.min.js");

__webpack_require__(/*! datatables.net-bs4 */ "./node_modules/datatables.net-bs4/js/dataTables.bootstrap4.js");

__webpack_require__(/*! datatables.net-buttons-bs4 */ "./node_modules/datatables.net-buttons-bs4/js/buttons.bootstrap4.js");

/***/ }),

/***/ "./resources/js/bootstrap.js":
/*!***********************************!*\
  !*** ./resources/js/bootstrap.js ***!
  \***********************************/
/***/ ((__unused_webpack_module, __unused_webpack_exports, __webpack_require__) => {

window._ = __webpack_require__(/*! lodash */ "./node_modules/lodash/lodash.js");
/**
 * We'll load jQuery and the Bootstrap jQuery plugin which provides support
 * for JavaScript based Bootstrap features such as modals and tabs. This
 * code may be modified to fit the specific needs of your application.
 */

try {
  window.Popper = __webpack_require__(/*! popper.js */ "./node_modules/popper.js/dist/esm/popper.js").default;
  window.$ = window.jQuery = __webpack_require__(/*! jquery */ "./node_modules/jquery/dist/jquery.js");

  __webpack_require__(/*! bootstrap */ "./node_modules/bootstrap/dist/js/bootstrap.js");
} catch (e) {}
/**
 * Echo exposes an expressive API for subscribing to channels and listening
 * for events that are broadcast by Laravel. Echo and event broadcasting
 * allows your team to easily build robust real-time web applications.
 */
// import Echo from 'laravel-echo';
// window.Pusher = require('pusher-js');
// window.Echo = new Echo({
//     broadcaster: 'pusher',
//     key: process.env.MIX_PUSHER_APP_KEY,
//     cluster: process.env.MIX_PUSHER_APP_CLUSTER,
//     encrypted: true
// });

/***/ }),

/***/ "./node_modules/bootstrap/dist/js/bootstrap.js":
/*!*****************************************************!*\
  !*** ./node_modules/bootstrap/dist/js/bootstrap.js ***!
  \*****************************************************/
/***/ (function(__unused_webpack_module, exports, __webpack_require__) {

/*!
  * Bootstrap v4.6.0 (https://getbootstrap.com/)
  * Copyright 2011-2021 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
  */
(function (global, factory) {
   true ? factory(exports, __webpack_require__(/*! jquery */ "./node_modules/jquery/dist/jquery.js"), __webpack_require__(/*! popper.js */ "./node_modules/popper.js/dist/esm/popper.js")) :
  0;
}(this, (function (exports, $, Popper) { 'use strict';

  function _interopDefaultLegacy (e) { return e && typeof e === 'object' && 'default' in e ? e : { 'default': e }; }

  var $__default = /*#__PURE__*/_interopDefaultLegacy($);
  var Popper__default = /*#__PURE__*/_interopDefaultLegacy(Popper);

  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }

  function _extends() {
    _extends = Object.assign || function (target) {
      for (var i = 1; i < arguments.length; i++) {
        var source = arguments[i];

        for (var key in source) {
          if (Object.prototype.hasOwnProperty.call(source, key)) {
            target[key] = source[key];
          }
        }
      }

      return target;
    };

    return _extends.apply(this, arguments);
  }

  function _inheritsLoose(subClass, superClass) {
    subClass.prototype = Object.create(superClass.prototype);
    subClass.prototype.constructor = subClass;
    subClass.__proto__ = superClass;
  }

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.6.0): util.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
   * --------------------------------------------------------------------------
   */
  /**
   * ------------------------------------------------------------------------
   * Private TransitionEnd Helpers
   * ------------------------------------------------------------------------
   */

  var TRANSITION_END = 'transitionend';
  var MAX_UID = 1000000;
  var MILLISECONDS_MULTIPLIER = 1000; // Shoutout AngusCroll (https://goo.gl/pxwQGp)

  function toType(obj) {
    if (obj === null || typeof obj === 'undefined') {
      return "" + obj;
    }

    return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
  }

  function getSpecialTransitionEndEvent() {
    return {
      bindType: TRANSITION_END,
      delegateType: TRANSITION_END,
      handle: function handle(event) {
        if ($__default['default'](event.target).is(this)) {
          return event.handleObj.handler.apply(this, arguments); // eslint-disable-line prefer-rest-params
        }

        return undefined;
      }
    };
  }

  function transitionEndEmulator(duration) {
    var _this = this;

    var called = false;
    $__default['default'](this).one(Util.TRANSITION_END, function () {
      called = true;
    });
    setTimeout(function () {
      if (!called) {
        Util.triggerTransitionEnd(_this);
      }
    }, duration);
    return this;
  }

  function setTransitionEndSupport() {
    $__default['default'].fn.emulateTransitionEnd = transitionEndEmulator;
    $__default['default'].event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent();
  }
  /**
   * --------------------------------------------------------------------------
   * Public Util Api
   * --------------------------------------------------------------------------
   */


  var Util = {
    TRANSITION_END: 'bsTransitionEnd',
    getUID: function getUID(prefix) {
      do {
        prefix += ~~(Math.random() * MAX_UID); // "~~" acts like a faster Math.floor() here
      } while (document.getElementById(prefix));

      return prefix;
    },
    getSelectorFromElement: function getSelectorFromElement(element) {
      var selector = element.getAttribute('data-target');

      if (!selector || selector === '#') {
        var hrefAttr = element.getAttribute('href');
        selector = hrefAttr && hrefAttr !== '#' ? hrefAttr.trim() : '';
      }

      try {
        return document.querySelector(selector) ? selector : null;
      } catch (_) {
        return null;
      }
    },
    getTransitionDurationFromElement: function getTransitionDurationFromElement(element) {
      if (!element) {
        return 0;
      } // Get transition-duration of the element


      var transitionDuration = $__default['default'](element).css('transition-duration');
      var transitionDelay = $__default['default'](element).css('transition-delay');
      var floatTransitionDuration = parseFloat(transitionDuration);
      var floatTransitionDelay = parseFloat(transitionDelay); // Return 0 if element or transition duration is not found

      if (!floatTransitionDuration && !floatTransitionDelay) {
        return 0;
      } // If multiple durations are defined, take the first


      transitionDuration = transitionDuration.split(',')[0];
      transitionDelay = transitionDelay.split(',')[0];
      return (parseFloat(transitionDuration) + parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER;
    },
    reflow: function reflow(element) {
      return element.offsetHeight;
    },
    triggerTransitionEnd: function triggerTransitionEnd(element) {
      $__default['default'](element).trigger(TRANSITION_END);
    },
    supportsTransitionEnd: function supportsTransitionEnd() {
      return Boolean(TRANSITION_END);
    },
    isElement: function isElement(obj) {
      return (obj[0] || obj).nodeType;
    },
    typeCheckConfig: function typeCheckConfig(componentName, config, configTypes) {
      for (var property in configTypes) {
        if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
          var expectedTypes = configTypes[property];
          var value = config[property];
          var valueType = value && Util.isElement(value) ? 'element' : toType(value);

          if (!new RegExp(expectedTypes).test(valueType)) {
            throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
          }
        }
      }
    },
    findShadowRoot: function findShadowRoot(element) {
      if (!document.documentElement.attachShadow) {
        return null;
      } // Can find the shadow root otherwise it'll return the document


      if (typeof element.getRootNode === 'function') {
        var root = element.getRootNode();
        return root instanceof ShadowRoot ? root : null;
      }

      if (element instanceof ShadowRoot) {
        return element;
      } // when we don't find a shadow root


      if (!element.parentNode) {
        return null;
      }

      return Util.findShadowRoot(element.parentNode);
    },
    jQueryDetection: function jQueryDetection() {
      if (typeof $__default['default'] === 'undefined') {
        throw new TypeError('Bootstrap\'s JavaScript requires jQuery. jQuery must be included before Bootstrap\'s JavaScript.');
      }

      var version = $__default['default'].fn.jquery.split(' ')[0].split('.');
      var minMajor = 1;
      var ltMajor = 2;
      var minMinor = 9;
      var minPatch = 1;
      var maxMajor = 4;

      if (version[0] < ltMajor && version[1] < minMinor || version[0] === minMajor && version[1] === minMinor && version[2] < minPatch || version[0] >= maxMajor) {
        throw new Error('Bootstrap\'s JavaScript requires at least jQuery v1.9.1 but less than v4.0.0');
      }
    }
  };
  Util.jQueryDetection();
  setTransitionEndSupport();

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME = 'alert';
  var VERSION = '4.6.0';
  var DATA_KEY = 'bs.alert';
  var EVENT_KEY = "." + DATA_KEY;
  var DATA_API_KEY = '.data-api';
  var JQUERY_NO_CONFLICT = $__default['default'].fn[NAME];
  var SELECTOR_DISMISS = '[data-dismiss="alert"]';
  var EVENT_CLOSE = "close" + EVENT_KEY;
  var EVENT_CLOSED = "closed" + EVENT_KEY;
  var EVENT_CLICK_DATA_API = "click" + EVENT_KEY + DATA_API_KEY;
  var CLASS_NAME_ALERT = 'alert';
  var CLASS_NAME_FADE = 'fade';
  var CLASS_NAME_SHOW = 'show';
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Alert = /*#__PURE__*/function () {
    function Alert(element) {
      this._element = element;
    } // Getters


    var _proto = Alert.prototype;

    // Public
    _proto.close = function close(element) {
      var rootElement = this._element;

      if (element) {
        rootElement = this._getRootElement(element);
      }

      var customEvent = this._triggerCloseEvent(rootElement);

      if (customEvent.isDefaultPrevented()) {
        return;
      }

      this._removeElement(rootElement);
    };

    _proto.dispose = function dispose() {
      $__default['default'].removeData(this._element, DATA_KEY);
      this._element = null;
    } // Private
    ;

    _proto._getRootElement = function _getRootElement(element) {
      var selector = Util.getSelectorFromElement(element);
      var parent = false;

      if (selector) {
        parent = document.querySelector(selector);
      }

      if (!parent) {
        parent = $__default['default'](element).closest("." + CLASS_NAME_ALERT)[0];
      }

      return parent;
    };

    _proto._triggerCloseEvent = function _triggerCloseEvent(element) {
      var closeEvent = $__default['default'].Event(EVENT_CLOSE);
      $__default['default'](element).trigger(closeEvent);
      return closeEvent;
    };

    _proto._removeElement = function _removeElement(element) {
      var _this = this;

      $__default['default'](element).removeClass(CLASS_NAME_SHOW);

      if (!$__default['default'](element).hasClass(CLASS_NAME_FADE)) {
        this._destroyElement(element);

        return;
      }

      var transitionDuration = Util.getTransitionDurationFromElement(element);
      $__default['default'](element).one(Util.TRANSITION_END, function (event) {
        return _this._destroyElement(element, event);
      }).emulateTransitionEnd(transitionDuration);
    };

    _proto._destroyElement = function _destroyElement(element) {
      $__default['default'](element).detach().trigger(EVENT_CLOSED).remove();
    } // Static
    ;

    Alert._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var $element = $__default['default'](this);
        var data = $element.data(DATA_KEY);

        if (!data) {
          data = new Alert(this);
          $element.data(DATA_KEY, data);
        }

        if (config === 'close') {
          data[config](this);
        }
      });
    };

    Alert._handleDismiss = function _handleDismiss(alertInstance) {
      return function (event) {
        if (event) {
          event.preventDefault();
        }

        alertInstance.close(this);
      };
    };

    _createClass(Alert, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION;
      }
    }]);

    return Alert;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $__default['default'](document).on(EVENT_CLICK_DATA_API, SELECTOR_DISMISS, Alert._handleDismiss(new Alert()));
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $__default['default'].fn[NAME] = Alert._jQueryInterface;
  $__default['default'].fn[NAME].Constructor = Alert;

  $__default['default'].fn[NAME].noConflict = function () {
    $__default['default'].fn[NAME] = JQUERY_NO_CONFLICT;
    return Alert._jQueryInterface;
  };

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$1 = 'button';
  var VERSION$1 = '4.6.0';
  var DATA_KEY$1 = 'bs.button';
  var EVENT_KEY$1 = "." + DATA_KEY$1;
  var DATA_API_KEY$1 = '.data-api';
  var JQUERY_NO_CONFLICT$1 = $__default['default'].fn[NAME$1];
  var CLASS_NAME_ACTIVE = 'active';
  var CLASS_NAME_BUTTON = 'btn';
  var CLASS_NAME_FOCUS = 'focus';
  var SELECTOR_DATA_TOGGLE_CARROT = '[data-toggle^="button"]';
  var SELECTOR_DATA_TOGGLES = '[data-toggle="buttons"]';
  var SELECTOR_DATA_TOGGLE = '[data-toggle="button"]';
  var SELECTOR_DATA_TOGGLES_BUTTONS = '[data-toggle="buttons"] .btn';
  var SELECTOR_INPUT = 'input:not([type="hidden"])';
  var SELECTOR_ACTIVE = '.active';
  var SELECTOR_BUTTON = '.btn';
  var EVENT_CLICK_DATA_API$1 = "click" + EVENT_KEY$1 + DATA_API_KEY$1;
  var EVENT_FOCUS_BLUR_DATA_API = "focus" + EVENT_KEY$1 + DATA_API_KEY$1 + " " + ("blur" + EVENT_KEY$1 + DATA_API_KEY$1);
  var EVENT_LOAD_DATA_API = "load" + EVENT_KEY$1 + DATA_API_KEY$1;
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Button = /*#__PURE__*/function () {
    function Button(element) {
      this._element = element;
      this.shouldAvoidTriggerChange = false;
    } // Getters


    var _proto = Button.prototype;

    // Public
    _proto.toggle = function toggle() {
      var triggerChangeEvent = true;
      var addAriaPressed = true;
      var rootElement = $__default['default'](this._element).closest(SELECTOR_DATA_TOGGLES)[0];

      if (rootElement) {
        var input = this._element.querySelector(SELECTOR_INPUT);

        if (input) {
          if (input.type === 'radio') {
            if (input.checked && this._element.classList.contains(CLASS_NAME_ACTIVE)) {
              triggerChangeEvent = false;
            } else {
              var activeElement = rootElement.querySelector(SELECTOR_ACTIVE);

              if (activeElement) {
                $__default['default'](activeElement).removeClass(CLASS_NAME_ACTIVE);
              }
            }
          }

          if (triggerChangeEvent) {
            // if it's not a radio button or checkbox don't add a pointless/invalid checked property to the input
            if (input.type === 'checkbox' || input.type === 'radio') {
              input.checked = !this._element.classList.contains(CLASS_NAME_ACTIVE);
            }

            if (!this.shouldAvoidTriggerChange) {
              $__default['default'](input).trigger('change');
            }
          }

          input.focus();
          addAriaPressed = false;
        }
      }

      if (!(this._element.hasAttribute('disabled') || this._element.classList.contains('disabled'))) {
        if (addAriaPressed) {
          this._element.setAttribute('aria-pressed', !this._element.classList.contains(CLASS_NAME_ACTIVE));
        }

        if (triggerChangeEvent) {
          $__default['default'](this._element).toggleClass(CLASS_NAME_ACTIVE);
        }
      }
    };

    _proto.dispose = function dispose() {
      $__default['default'].removeData(this._element, DATA_KEY$1);
      this._element = null;
    } // Static
    ;

    Button._jQueryInterface = function _jQueryInterface(config, avoidTriggerChange) {
      return this.each(function () {
        var $element = $__default['default'](this);
        var data = $element.data(DATA_KEY$1);

        if (!data) {
          data = new Button(this);
          $element.data(DATA_KEY$1, data);
        }

        data.shouldAvoidTriggerChange = avoidTriggerChange;

        if (config === 'toggle') {
          data[config]();
        }
      });
    };

    _createClass(Button, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION$1;
      }
    }]);

    return Button;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $__default['default'](document).on(EVENT_CLICK_DATA_API$1, SELECTOR_DATA_TOGGLE_CARROT, function (event) {
    var button = event.target;
    var initialButton = button;

    if (!$__default['default'](button).hasClass(CLASS_NAME_BUTTON)) {
      button = $__default['default'](button).closest(SELECTOR_BUTTON)[0];
    }

    if (!button || button.hasAttribute('disabled') || button.classList.contains('disabled')) {
      event.preventDefault(); // work around Firefox bug #1540995
    } else {
      var inputBtn = button.querySelector(SELECTOR_INPUT);

      if (inputBtn && (inputBtn.hasAttribute('disabled') || inputBtn.classList.contains('disabled'))) {
        event.preventDefault(); // work around Firefox bug #1540995

        return;
      }

      if (initialButton.tagName === 'INPUT' || button.tagName !== 'LABEL') {
        Button._jQueryInterface.call($__default['default'](button), 'toggle', initialButton.tagName === 'INPUT');
      }
    }
  }).on(EVENT_FOCUS_BLUR_DATA_API, SELECTOR_DATA_TOGGLE_CARROT, function (event) {
    var button = $__default['default'](event.target).closest(SELECTOR_BUTTON)[0];
    $__default['default'](button).toggleClass(CLASS_NAME_FOCUS, /^focus(in)?$/.test(event.type));
  });
  $__default['default'](window).on(EVENT_LOAD_DATA_API, function () {
    // ensure correct active class is set to match the controls' actual values/states
    // find all checkboxes/readio buttons inside data-toggle groups
    var buttons = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLES_BUTTONS));

    for (var i = 0, len = buttons.length; i < len; i++) {
      var button = buttons[i];
      var input = button.querySelector(SELECTOR_INPUT);

      if (input.checked || input.hasAttribute('checked')) {
        button.classList.add(CLASS_NAME_ACTIVE);
      } else {
        button.classList.remove(CLASS_NAME_ACTIVE);
      }
    } // find all button toggles


    buttons = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLE));

    for (var _i = 0, _len = buttons.length; _i < _len; _i++) {
      var _button = buttons[_i];

      if (_button.getAttribute('aria-pressed') === 'true') {
        _button.classList.add(CLASS_NAME_ACTIVE);
      } else {
        _button.classList.remove(CLASS_NAME_ACTIVE);
      }
    }
  });
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $__default['default'].fn[NAME$1] = Button._jQueryInterface;
  $__default['default'].fn[NAME$1].Constructor = Button;

  $__default['default'].fn[NAME$1].noConflict = function () {
    $__default['default'].fn[NAME$1] = JQUERY_NO_CONFLICT$1;
    return Button._jQueryInterface;
  };

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$2 = 'carousel';
  var VERSION$2 = '4.6.0';
  var DATA_KEY$2 = 'bs.carousel';
  var EVENT_KEY$2 = "." + DATA_KEY$2;
  var DATA_API_KEY$2 = '.data-api';
  var JQUERY_NO_CONFLICT$2 = $__default['default'].fn[NAME$2];
  var ARROW_LEFT_KEYCODE = 37; // KeyboardEvent.which value for left arrow key

  var ARROW_RIGHT_KEYCODE = 39; // KeyboardEvent.which value for right arrow key

  var TOUCHEVENT_COMPAT_WAIT = 500; // Time for mouse compat events to fire after touch

  var SWIPE_THRESHOLD = 40;
  var Default = {
    interval: 5000,
    keyboard: true,
    slide: false,
    pause: 'hover',
    wrap: true,
    touch: true
  };
  var DefaultType = {
    interval: '(number|boolean)',
    keyboard: 'boolean',
    slide: '(boolean|string)',
    pause: '(string|boolean)',
    wrap: 'boolean',
    touch: 'boolean'
  };
  var DIRECTION_NEXT = 'next';
  var DIRECTION_PREV = 'prev';
  var DIRECTION_LEFT = 'left';
  var DIRECTION_RIGHT = 'right';
  var EVENT_SLIDE = "slide" + EVENT_KEY$2;
  var EVENT_SLID = "slid" + EVENT_KEY$2;
  var EVENT_KEYDOWN = "keydown" + EVENT_KEY$2;
  var EVENT_MOUSEENTER = "mouseenter" + EVENT_KEY$2;
  var EVENT_MOUSELEAVE = "mouseleave" + EVENT_KEY$2;
  var EVENT_TOUCHSTART = "touchstart" + EVENT_KEY$2;
  var EVENT_TOUCHMOVE = "touchmove" + EVENT_KEY$2;
  var EVENT_TOUCHEND = "touchend" + EVENT_KEY$2;
  var EVENT_POINTERDOWN = "pointerdown" + EVENT_KEY$2;
  var EVENT_POINTERUP = "pointerup" + EVENT_KEY$2;
  var EVENT_DRAG_START = "dragstart" + EVENT_KEY$2;
  var EVENT_LOAD_DATA_API$1 = "load" + EVENT_KEY$2 + DATA_API_KEY$2;
  var EVENT_CLICK_DATA_API$2 = "click" + EVENT_KEY$2 + DATA_API_KEY$2;
  var CLASS_NAME_CAROUSEL = 'carousel';
  var CLASS_NAME_ACTIVE$1 = 'active';
  var CLASS_NAME_SLIDE = 'slide';
  var CLASS_NAME_RIGHT = 'carousel-item-right';
  var CLASS_NAME_LEFT = 'carousel-item-left';
  var CLASS_NAME_NEXT = 'carousel-item-next';
  var CLASS_NAME_PREV = 'carousel-item-prev';
  var CLASS_NAME_POINTER_EVENT = 'pointer-event';
  var SELECTOR_ACTIVE$1 = '.active';
  var SELECTOR_ACTIVE_ITEM = '.active.carousel-item';
  var SELECTOR_ITEM = '.carousel-item';
  var SELECTOR_ITEM_IMG = '.carousel-item img';
  var SELECTOR_NEXT_PREV = '.carousel-item-next, .carousel-item-prev';
  var SELECTOR_INDICATORS = '.carousel-indicators';
  var SELECTOR_DATA_SLIDE = '[data-slide], [data-slide-to]';
  var SELECTOR_DATA_RIDE = '[data-ride="carousel"]';
  var PointerType = {
    TOUCH: 'touch',
    PEN: 'pen'
  };
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Carousel = /*#__PURE__*/function () {
    function Carousel(element, config) {
      this._items = null;
      this._interval = null;
      this._activeElement = null;
      this._isPaused = false;
      this._isSliding = false;
      this.touchTimeout = null;
      this.touchStartX = 0;
      this.touchDeltaX = 0;
      this._config = this._getConfig(config);
      this._element = element;
      this._indicatorsElement = this._element.querySelector(SELECTOR_INDICATORS);
      this._touchSupported = 'ontouchstart' in document.documentElement || navigator.maxTouchPoints > 0;
      this._pointerEvent = Boolean(window.PointerEvent || window.MSPointerEvent);

      this._addEventListeners();
    } // Getters


    var _proto = Carousel.prototype;

    // Public
    _proto.next = function next() {
      if (!this._isSliding) {
        this._slide(DIRECTION_NEXT);
      }
    };

    _proto.nextWhenVisible = function nextWhenVisible() {
      var $element = $__default['default'](this._element); // Don't call next when the page isn't visible
      // or the carousel or its parent isn't visible

      if (!document.hidden && $element.is(':visible') && $element.css('visibility') !== 'hidden') {
        this.next();
      }
    };

    _proto.prev = function prev() {
      if (!this._isSliding) {
        this._slide(DIRECTION_PREV);
      }
    };

    _proto.pause = function pause(event) {
      if (!event) {
        this._isPaused = true;
      }

      if (this._element.querySelector(SELECTOR_NEXT_PREV)) {
        Util.triggerTransitionEnd(this._element);
        this.cycle(true);
      }

      clearInterval(this._interval);
      this._interval = null;
    };

    _proto.cycle = function cycle(event) {
      if (!event) {
        this._isPaused = false;
      }

      if (this._interval) {
        clearInterval(this._interval);
        this._interval = null;
      }

      if (this._config.interval && !this._isPaused) {
        this._updateInterval();

        this._interval = setInterval((document.visibilityState ? this.nextWhenVisible : this.next).bind(this), this._config.interval);
      }
    };

    _proto.to = function to(index) {
      var _this = this;

      this._activeElement = this._element.querySelector(SELECTOR_ACTIVE_ITEM);

      var activeIndex = this._getItemIndex(this._activeElement);

      if (index > this._items.length - 1 || index < 0) {
        return;
      }

      if (this._isSliding) {
        $__default['default'](this._element).one(EVENT_SLID, function () {
          return _this.to(index);
        });
        return;
      }

      if (activeIndex === index) {
        this.pause();
        this.cycle();
        return;
      }

      var direction = index > activeIndex ? DIRECTION_NEXT : DIRECTION_PREV;

      this._slide(direction, this._items[index]);
    };

    _proto.dispose = function dispose() {
      $__default['default'](this._element).off(EVENT_KEY$2);
      $__default['default'].removeData(this._element, DATA_KEY$2);
      this._items = null;
      this._config = null;
      this._element = null;
      this._interval = null;
      this._isPaused = null;
      this._isSliding = null;
      this._activeElement = null;
      this._indicatorsElement = null;
    } // Private
    ;

    _proto._getConfig = function _getConfig(config) {
      config = _extends({}, Default, config);
      Util.typeCheckConfig(NAME$2, config, DefaultType);
      return config;
    };

    _proto._handleSwipe = function _handleSwipe() {
      var absDeltax = Math.abs(this.touchDeltaX);

      if (absDeltax <= SWIPE_THRESHOLD) {
        return;
      }

      var direction = absDeltax / this.touchDeltaX;
      this.touchDeltaX = 0; // swipe left

      if (direction > 0) {
        this.prev();
      } // swipe right


      if (direction < 0) {
        this.next();
      }
    };

    _proto._addEventListeners = function _addEventListeners() {
      var _this2 = this;

      if (this._config.keyboard) {
        $__default['default'](this._element).on(EVENT_KEYDOWN, function (event) {
          return _this2._keydown(event);
        });
      }

      if (this._config.pause === 'hover') {
        $__default['default'](this._element).on(EVENT_MOUSEENTER, function (event) {
          return _this2.pause(event);
        }).on(EVENT_MOUSELEAVE, function (event) {
          return _this2.cycle(event);
        });
      }

      if (this._config.touch) {
        this._addTouchEventListeners();
      }
    };

    _proto._addTouchEventListeners = function _addTouchEventListeners() {
      var _this3 = this;

      if (!this._touchSupported) {
        return;
      }

      var start = function start(event) {
        if (_this3._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
          _this3.touchStartX = event.originalEvent.clientX;
        } else if (!_this3._pointerEvent) {
          _this3.touchStartX = event.originalEvent.touches[0].clientX;
        }
      };

      var move = function move(event) {
        // ensure swiping with one touch and not pinching
        if (event.originalEvent.touches && event.originalEvent.touches.length > 1) {
          _this3.touchDeltaX = 0;
        } else {
          _this3.touchDeltaX = event.originalEvent.touches[0].clientX - _this3.touchStartX;
        }
      };

      var end = function end(event) {
        if (_this3._pointerEvent && PointerType[event.originalEvent.pointerType.toUpperCase()]) {
          _this3.touchDeltaX = event.originalEvent.clientX - _this3.touchStartX;
        }

        _this3._handleSwipe();

        if (_this3._config.pause === 'hover') {
          // If it's a touch-enabled device, mouseenter/leave are fired as
          // part of the mouse compatibility events on first tap - the carousel
          // would stop cycling until user tapped out of it;
          // here, we listen for touchend, explicitly pause the carousel
          // (as if it's the second time we tap on it, mouseenter compat event
          // is NOT fired) and after a timeout (to allow for mouse compatibility
          // events to fire) we explicitly restart cycling
          _this3.pause();

          if (_this3.touchTimeout) {
            clearTimeout(_this3.touchTimeout);
          }

          _this3.touchTimeout = setTimeout(function (event) {
            return _this3.cycle(event);
          }, TOUCHEVENT_COMPAT_WAIT + _this3._config.interval);
        }
      };

      $__default['default'](this._element.querySelectorAll(SELECTOR_ITEM_IMG)).on(EVENT_DRAG_START, function (e) {
        return e.preventDefault();
      });

      if (this._pointerEvent) {
        $__default['default'](this._element).on(EVENT_POINTERDOWN, function (event) {
          return start(event);
        });
        $__default['default'](this._element).on(EVENT_POINTERUP, function (event) {
          return end(event);
        });

        this._element.classList.add(CLASS_NAME_POINTER_EVENT);
      } else {
        $__default['default'](this._element).on(EVENT_TOUCHSTART, function (event) {
          return start(event);
        });
        $__default['default'](this._element).on(EVENT_TOUCHMOVE, function (event) {
          return move(event);
        });
        $__default['default'](this._element).on(EVENT_TOUCHEND, function (event) {
          return end(event);
        });
      }
    };

    _proto._keydown = function _keydown(event) {
      if (/input|textarea/i.test(event.target.tagName)) {
        return;
      }

      switch (event.which) {
        case ARROW_LEFT_KEYCODE:
          event.preventDefault();
          this.prev();
          break;

        case ARROW_RIGHT_KEYCODE:
          event.preventDefault();
          this.next();
          break;
      }
    };

    _proto._getItemIndex = function _getItemIndex(element) {
      this._items = element && element.parentNode ? [].slice.call(element.parentNode.querySelectorAll(SELECTOR_ITEM)) : [];
      return this._items.indexOf(element);
    };

    _proto._getItemByDirection = function _getItemByDirection(direction, activeElement) {
      var isNextDirection = direction === DIRECTION_NEXT;
      var isPrevDirection = direction === DIRECTION_PREV;

      var activeIndex = this._getItemIndex(activeElement);

      var lastItemIndex = this._items.length - 1;
      var isGoingToWrap = isPrevDirection && activeIndex === 0 || isNextDirection && activeIndex === lastItemIndex;

      if (isGoingToWrap && !this._config.wrap) {
        return activeElement;
      }

      var delta = direction === DIRECTION_PREV ? -1 : 1;
      var itemIndex = (activeIndex + delta) % this._items.length;
      return itemIndex === -1 ? this._items[this._items.length - 1] : this._items[itemIndex];
    };

    _proto._triggerSlideEvent = function _triggerSlideEvent(relatedTarget, eventDirectionName) {
      var targetIndex = this._getItemIndex(relatedTarget);

      var fromIndex = this._getItemIndex(this._element.querySelector(SELECTOR_ACTIVE_ITEM));

      var slideEvent = $__default['default'].Event(EVENT_SLIDE, {
        relatedTarget: relatedTarget,
        direction: eventDirectionName,
        from: fromIndex,
        to: targetIndex
      });
      $__default['default'](this._element).trigger(slideEvent);
      return slideEvent;
    };

    _proto._setActiveIndicatorElement = function _setActiveIndicatorElement(element) {
      if (this._indicatorsElement) {
        var indicators = [].slice.call(this._indicatorsElement.querySelectorAll(SELECTOR_ACTIVE$1));
        $__default['default'](indicators).removeClass(CLASS_NAME_ACTIVE$1);

        var nextIndicator = this._indicatorsElement.children[this._getItemIndex(element)];

        if (nextIndicator) {
          $__default['default'](nextIndicator).addClass(CLASS_NAME_ACTIVE$1);
        }
      }
    };

    _proto._updateInterval = function _updateInterval() {
      var element = this._activeElement || this._element.querySelector(SELECTOR_ACTIVE_ITEM);

      if (!element) {
        return;
      }

      var elementInterval = parseInt(element.getAttribute('data-interval'), 10);

      if (elementInterval) {
        this._config.defaultInterval = this._config.defaultInterval || this._config.interval;
        this._config.interval = elementInterval;
      } else {
        this._config.interval = this._config.defaultInterval || this._config.interval;
      }
    };

    _proto._slide = function _slide(direction, element) {
      var _this4 = this;

      var activeElement = this._element.querySelector(SELECTOR_ACTIVE_ITEM);

      var activeElementIndex = this._getItemIndex(activeElement);

      var nextElement = element || activeElement && this._getItemByDirection(direction, activeElement);

      var nextElementIndex = this._getItemIndex(nextElement);

      var isCycling = Boolean(this._interval);
      var directionalClassName;
      var orderClassName;
      var eventDirectionName;

      if (direction === DIRECTION_NEXT) {
        directionalClassName = CLASS_NAME_LEFT;
        orderClassName = CLASS_NAME_NEXT;
        eventDirectionName = DIRECTION_LEFT;
      } else {
        directionalClassName = CLASS_NAME_RIGHT;
        orderClassName = CLASS_NAME_PREV;
        eventDirectionName = DIRECTION_RIGHT;
      }

      if (nextElement && $__default['default'](nextElement).hasClass(CLASS_NAME_ACTIVE$1)) {
        this._isSliding = false;
        return;
      }

      var slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName);

      if (slideEvent.isDefaultPrevented()) {
        return;
      }

      if (!activeElement || !nextElement) {
        // Some weirdness is happening, so we bail
        return;
      }

      this._isSliding = true;

      if (isCycling) {
        this.pause();
      }

      this._setActiveIndicatorElement(nextElement);

      this._activeElement = nextElement;
      var slidEvent = $__default['default'].Event(EVENT_SLID, {
        relatedTarget: nextElement,
        direction: eventDirectionName,
        from: activeElementIndex,
        to: nextElementIndex
      });

      if ($__default['default'](this._element).hasClass(CLASS_NAME_SLIDE)) {
        $__default['default'](nextElement).addClass(orderClassName);
        Util.reflow(nextElement);
        $__default['default'](activeElement).addClass(directionalClassName);
        $__default['default'](nextElement).addClass(directionalClassName);
        var transitionDuration = Util.getTransitionDurationFromElement(activeElement);
        $__default['default'](activeElement).one(Util.TRANSITION_END, function () {
          $__default['default'](nextElement).removeClass(directionalClassName + " " + orderClassName).addClass(CLASS_NAME_ACTIVE$1);
          $__default['default'](activeElement).removeClass(CLASS_NAME_ACTIVE$1 + " " + orderClassName + " " + directionalClassName);
          _this4._isSliding = false;
          setTimeout(function () {
            return $__default['default'](_this4._element).trigger(slidEvent);
          }, 0);
        }).emulateTransitionEnd(transitionDuration);
      } else {
        $__default['default'](activeElement).removeClass(CLASS_NAME_ACTIVE$1);
        $__default['default'](nextElement).addClass(CLASS_NAME_ACTIVE$1);
        this._isSliding = false;
        $__default['default'](this._element).trigger(slidEvent);
      }

      if (isCycling) {
        this.cycle();
      }
    } // Static
    ;

    Carousel._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var data = $__default['default'](this).data(DATA_KEY$2);

        var _config = _extends({}, Default, $__default['default'](this).data());

        if (typeof config === 'object') {
          _config = _extends({}, _config, config);
        }

        var action = typeof config === 'string' ? config : _config.slide;

        if (!data) {
          data = new Carousel(this, _config);
          $__default['default'](this).data(DATA_KEY$2, data);
        }

        if (typeof config === 'number') {
          data.to(config);
        } else if (typeof action === 'string') {
          if (typeof data[action] === 'undefined') {
            throw new TypeError("No method named \"" + action + "\"");
          }

          data[action]();
        } else if (_config.interval && _config.ride) {
          data.pause();
          data.cycle();
        }
      });
    };

    Carousel._dataApiClickHandler = function _dataApiClickHandler(event) {
      var selector = Util.getSelectorFromElement(this);

      if (!selector) {
        return;
      }

      var target = $__default['default'](selector)[0];

      if (!target || !$__default['default'](target).hasClass(CLASS_NAME_CAROUSEL)) {
        return;
      }

      var config = _extends({}, $__default['default'](target).data(), $__default['default'](this).data());

      var slideIndex = this.getAttribute('data-slide-to');

      if (slideIndex) {
        config.interval = false;
      }

      Carousel._jQueryInterface.call($__default['default'](target), config);

      if (slideIndex) {
        $__default['default'](target).data(DATA_KEY$2).to(slideIndex);
      }

      event.preventDefault();
    };

    _createClass(Carousel, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION$2;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default;
      }
    }]);

    return Carousel;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $__default['default'](document).on(EVENT_CLICK_DATA_API$2, SELECTOR_DATA_SLIDE, Carousel._dataApiClickHandler);
  $__default['default'](window).on(EVENT_LOAD_DATA_API$1, function () {
    var carousels = [].slice.call(document.querySelectorAll(SELECTOR_DATA_RIDE));

    for (var i = 0, len = carousels.length; i < len; i++) {
      var $carousel = $__default['default'](carousels[i]);

      Carousel._jQueryInterface.call($carousel, $carousel.data());
    }
  });
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $__default['default'].fn[NAME$2] = Carousel._jQueryInterface;
  $__default['default'].fn[NAME$2].Constructor = Carousel;

  $__default['default'].fn[NAME$2].noConflict = function () {
    $__default['default'].fn[NAME$2] = JQUERY_NO_CONFLICT$2;
    return Carousel._jQueryInterface;
  };

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$3 = 'collapse';
  var VERSION$3 = '4.6.0';
  var DATA_KEY$3 = 'bs.collapse';
  var EVENT_KEY$3 = "." + DATA_KEY$3;
  var DATA_API_KEY$3 = '.data-api';
  var JQUERY_NO_CONFLICT$3 = $__default['default'].fn[NAME$3];
  var Default$1 = {
    toggle: true,
    parent: ''
  };
  var DefaultType$1 = {
    toggle: 'boolean',
    parent: '(string|element)'
  };
  var EVENT_SHOW = "show" + EVENT_KEY$3;
  var EVENT_SHOWN = "shown" + EVENT_KEY$3;
  var EVENT_HIDE = "hide" + EVENT_KEY$3;
  var EVENT_HIDDEN = "hidden" + EVENT_KEY$3;
  var EVENT_CLICK_DATA_API$3 = "click" + EVENT_KEY$3 + DATA_API_KEY$3;
  var CLASS_NAME_SHOW$1 = 'show';
  var CLASS_NAME_COLLAPSE = 'collapse';
  var CLASS_NAME_COLLAPSING = 'collapsing';
  var CLASS_NAME_COLLAPSED = 'collapsed';
  var DIMENSION_WIDTH = 'width';
  var DIMENSION_HEIGHT = 'height';
  var SELECTOR_ACTIVES = '.show, .collapsing';
  var SELECTOR_DATA_TOGGLE$1 = '[data-toggle="collapse"]';
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Collapse = /*#__PURE__*/function () {
    function Collapse(element, config) {
      this._isTransitioning = false;
      this._element = element;
      this._config = this._getConfig(config);
      this._triggerArray = [].slice.call(document.querySelectorAll("[data-toggle=\"collapse\"][href=\"#" + element.id + "\"]," + ("[data-toggle=\"collapse\"][data-target=\"#" + element.id + "\"]")));
      var toggleList = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLE$1));

      for (var i = 0, len = toggleList.length; i < len; i++) {
        var elem = toggleList[i];
        var selector = Util.getSelectorFromElement(elem);
        var filterElement = [].slice.call(document.querySelectorAll(selector)).filter(function (foundElem) {
          return foundElem === element;
        });

        if (selector !== null && filterElement.length > 0) {
          this._selector = selector;

          this._triggerArray.push(elem);
        }
      }

      this._parent = this._config.parent ? this._getParent() : null;

      if (!this._config.parent) {
        this._addAriaAndCollapsedClass(this._element, this._triggerArray);
      }

      if (this._config.toggle) {
        this.toggle();
      }
    } // Getters


    var _proto = Collapse.prototype;

    // Public
    _proto.toggle = function toggle() {
      if ($__default['default'](this._element).hasClass(CLASS_NAME_SHOW$1)) {
        this.hide();
      } else {
        this.show();
      }
    };

    _proto.show = function show() {
      var _this = this;

      if (this._isTransitioning || $__default['default'](this._element).hasClass(CLASS_NAME_SHOW$1)) {
        return;
      }

      var actives;
      var activesData;

      if (this._parent) {
        actives = [].slice.call(this._parent.querySelectorAll(SELECTOR_ACTIVES)).filter(function (elem) {
          if (typeof _this._config.parent === 'string') {
            return elem.getAttribute('data-parent') === _this._config.parent;
          }

          return elem.classList.contains(CLASS_NAME_COLLAPSE);
        });

        if (actives.length === 0) {
          actives = null;
        }
      }

      if (actives) {
        activesData = $__default['default'](actives).not(this._selector).data(DATA_KEY$3);

        if (activesData && activesData._isTransitioning) {
          return;
        }
      }

      var startEvent = $__default['default'].Event(EVENT_SHOW);
      $__default['default'](this._element).trigger(startEvent);

      if (startEvent.isDefaultPrevented()) {
        return;
      }

      if (actives) {
        Collapse._jQueryInterface.call($__default['default'](actives).not(this._selector), 'hide');

        if (!activesData) {
          $__default['default'](actives).data(DATA_KEY$3, null);
        }
      }

      var dimension = this._getDimension();

      $__default['default'](this._element).removeClass(CLASS_NAME_COLLAPSE).addClass(CLASS_NAME_COLLAPSING);
      this._element.style[dimension] = 0;

      if (this._triggerArray.length) {
        $__default['default'](this._triggerArray).removeClass(CLASS_NAME_COLLAPSED).attr('aria-expanded', true);
      }

      this.setTransitioning(true);

      var complete = function complete() {
        $__default['default'](_this._element).removeClass(CLASS_NAME_COLLAPSING).addClass(CLASS_NAME_COLLAPSE + " " + CLASS_NAME_SHOW$1);
        _this._element.style[dimension] = '';

        _this.setTransitioning(false);

        $__default['default'](_this._element).trigger(EVENT_SHOWN);
      };

      var capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1);
      var scrollSize = "scroll" + capitalizedDimension;
      var transitionDuration = Util.getTransitionDurationFromElement(this._element);
      $__default['default'](this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
      this._element.style[dimension] = this._element[scrollSize] + "px";
    };

    _proto.hide = function hide() {
      var _this2 = this;

      if (this._isTransitioning || !$__default['default'](this._element).hasClass(CLASS_NAME_SHOW$1)) {
        return;
      }

      var startEvent = $__default['default'].Event(EVENT_HIDE);
      $__default['default'](this._element).trigger(startEvent);

      if (startEvent.isDefaultPrevented()) {
        return;
      }

      var dimension = this._getDimension();

      this._element.style[dimension] = this._element.getBoundingClientRect()[dimension] + "px";
      Util.reflow(this._element);
      $__default['default'](this._element).addClass(CLASS_NAME_COLLAPSING).removeClass(CLASS_NAME_COLLAPSE + " " + CLASS_NAME_SHOW$1);
      var triggerArrayLength = this._triggerArray.length;

      if (triggerArrayLength > 0) {
        for (var i = 0; i < triggerArrayLength; i++) {
          var trigger = this._triggerArray[i];
          var selector = Util.getSelectorFromElement(trigger);

          if (selector !== null) {
            var $elem = $__default['default']([].slice.call(document.querySelectorAll(selector)));

            if (!$elem.hasClass(CLASS_NAME_SHOW$1)) {
              $__default['default'](trigger).addClass(CLASS_NAME_COLLAPSED).attr('aria-expanded', false);
            }
          }
        }
      }

      this.setTransitioning(true);

      var complete = function complete() {
        _this2.setTransitioning(false);

        $__default['default'](_this2._element).removeClass(CLASS_NAME_COLLAPSING).addClass(CLASS_NAME_COLLAPSE).trigger(EVENT_HIDDEN);
      };

      this._element.style[dimension] = '';
      var transitionDuration = Util.getTransitionDurationFromElement(this._element);
      $__default['default'](this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
    };

    _proto.setTransitioning = function setTransitioning(isTransitioning) {
      this._isTransitioning = isTransitioning;
    };

    _proto.dispose = function dispose() {
      $__default['default'].removeData(this._element, DATA_KEY$3);
      this._config = null;
      this._parent = null;
      this._element = null;
      this._triggerArray = null;
      this._isTransitioning = null;
    } // Private
    ;

    _proto._getConfig = function _getConfig(config) {
      config = _extends({}, Default$1, config);
      config.toggle = Boolean(config.toggle); // Coerce string values

      Util.typeCheckConfig(NAME$3, config, DefaultType$1);
      return config;
    };

    _proto._getDimension = function _getDimension() {
      var hasWidth = $__default['default'](this._element).hasClass(DIMENSION_WIDTH);
      return hasWidth ? DIMENSION_WIDTH : DIMENSION_HEIGHT;
    };

    _proto._getParent = function _getParent() {
      var _this3 = this;

      var parent;

      if (Util.isElement(this._config.parent)) {
        parent = this._config.parent; // It's a jQuery object

        if (typeof this._config.parent.jquery !== 'undefined') {
          parent = this._config.parent[0];
        }
      } else {
        parent = document.querySelector(this._config.parent);
      }

      var selector = "[data-toggle=\"collapse\"][data-parent=\"" + this._config.parent + "\"]";
      var children = [].slice.call(parent.querySelectorAll(selector));
      $__default['default'](children).each(function (i, element) {
        _this3._addAriaAndCollapsedClass(Collapse._getTargetFromElement(element), [element]);
      });
      return parent;
    };

    _proto._addAriaAndCollapsedClass = function _addAriaAndCollapsedClass(element, triggerArray) {
      var isOpen = $__default['default'](element).hasClass(CLASS_NAME_SHOW$1);

      if (triggerArray.length) {
        $__default['default'](triggerArray).toggleClass(CLASS_NAME_COLLAPSED, !isOpen).attr('aria-expanded', isOpen);
      }
    } // Static
    ;

    Collapse._getTargetFromElement = function _getTargetFromElement(element) {
      var selector = Util.getSelectorFromElement(element);
      return selector ? document.querySelector(selector) : null;
    };

    Collapse._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var $element = $__default['default'](this);
        var data = $element.data(DATA_KEY$3);

        var _config = _extends({}, Default$1, $element.data(), typeof config === 'object' && config ? config : {});

        if (!data && _config.toggle && typeof config === 'string' && /show|hide/.test(config)) {
          _config.toggle = false;
        }

        if (!data) {
          data = new Collapse(this, _config);
          $element.data(DATA_KEY$3, data);
        }

        if (typeof config === 'string') {
          if (typeof data[config] === 'undefined') {
            throw new TypeError("No method named \"" + config + "\"");
          }

          data[config]();
        }
      });
    };

    _createClass(Collapse, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION$3;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default$1;
      }
    }]);

    return Collapse;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $__default['default'](document).on(EVENT_CLICK_DATA_API$3, SELECTOR_DATA_TOGGLE$1, function (event) {
    // preventDefault only for <a> elements (which change the URL) not inside the collapsible element
    if (event.currentTarget.tagName === 'A') {
      event.preventDefault();
    }

    var $trigger = $__default['default'](this);
    var selector = Util.getSelectorFromElement(this);
    var selectors = [].slice.call(document.querySelectorAll(selector));
    $__default['default'](selectors).each(function () {
      var $target = $__default['default'](this);
      var data = $target.data(DATA_KEY$3);
      var config = data ? 'toggle' : $trigger.data();

      Collapse._jQueryInterface.call($target, config);
    });
  });
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $__default['default'].fn[NAME$3] = Collapse._jQueryInterface;
  $__default['default'].fn[NAME$3].Constructor = Collapse;

  $__default['default'].fn[NAME$3].noConflict = function () {
    $__default['default'].fn[NAME$3] = JQUERY_NO_CONFLICT$3;
    return Collapse._jQueryInterface;
  };

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$4 = 'dropdown';
  var VERSION$4 = '4.6.0';
  var DATA_KEY$4 = 'bs.dropdown';
  var EVENT_KEY$4 = "." + DATA_KEY$4;
  var DATA_API_KEY$4 = '.data-api';
  var JQUERY_NO_CONFLICT$4 = $__default['default'].fn[NAME$4];
  var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key

  var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space key

  var TAB_KEYCODE = 9; // KeyboardEvent.which value for tab key

  var ARROW_UP_KEYCODE = 38; // KeyboardEvent.which value for up arrow key

  var ARROW_DOWN_KEYCODE = 40; // KeyboardEvent.which value for down arrow key

  var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse)

  var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + "|" + ARROW_DOWN_KEYCODE + "|" + ESCAPE_KEYCODE);
  var EVENT_HIDE$1 = "hide" + EVENT_KEY$4;
  var EVENT_HIDDEN$1 = "hidden" + EVENT_KEY$4;
  var EVENT_SHOW$1 = "show" + EVENT_KEY$4;
  var EVENT_SHOWN$1 = "shown" + EVENT_KEY$4;
  var EVENT_CLICK = "click" + EVENT_KEY$4;
  var EVENT_CLICK_DATA_API$4 = "click" + EVENT_KEY$4 + DATA_API_KEY$4;
  var EVENT_KEYDOWN_DATA_API = "keydown" + EVENT_KEY$4 + DATA_API_KEY$4;
  var EVENT_KEYUP_DATA_API = "keyup" + EVENT_KEY$4 + DATA_API_KEY$4;
  var CLASS_NAME_DISABLED = 'disabled';
  var CLASS_NAME_SHOW$2 = 'show';
  var CLASS_NAME_DROPUP = 'dropup';
  var CLASS_NAME_DROPRIGHT = 'dropright';
  var CLASS_NAME_DROPLEFT = 'dropleft';
  var CLASS_NAME_MENURIGHT = 'dropdown-menu-right';
  var CLASS_NAME_POSITION_STATIC = 'position-static';
  var SELECTOR_DATA_TOGGLE$2 = '[data-toggle="dropdown"]';
  var SELECTOR_FORM_CHILD = '.dropdown form';
  var SELECTOR_MENU = '.dropdown-menu';
  var SELECTOR_NAVBAR_NAV = '.navbar-nav';
  var SELECTOR_VISIBLE_ITEMS = '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)';
  var PLACEMENT_TOP = 'top-start';
  var PLACEMENT_TOPEND = 'top-end';
  var PLACEMENT_BOTTOM = 'bottom-start';
  var PLACEMENT_BOTTOMEND = 'bottom-end';
  var PLACEMENT_RIGHT = 'right-start';
  var PLACEMENT_LEFT = 'left-start';
  var Default$2 = {
    offset: 0,
    flip: true,
    boundary: 'scrollParent',
    reference: 'toggle',
    display: 'dynamic',
    popperConfig: null
  };
  var DefaultType$2 = {
    offset: '(number|string|function)',
    flip: 'boolean',
    boundary: '(string|element)',
    reference: '(string|element)',
    display: 'string',
    popperConfig: '(null|object)'
  };
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Dropdown = /*#__PURE__*/function () {
    function Dropdown(element, config) {
      this._element = element;
      this._popper = null;
      this._config = this._getConfig(config);
      this._menu = this._getMenuElement();
      this._inNavbar = this._detectNavbar();

      this._addEventListeners();
    } // Getters


    var _proto = Dropdown.prototype;

    // Public
    _proto.toggle = function toggle() {
      if (this._element.disabled || $__default['default'](this._element).hasClass(CLASS_NAME_DISABLED)) {
        return;
      }

      var isActive = $__default['default'](this._menu).hasClass(CLASS_NAME_SHOW$2);

      Dropdown._clearMenus();

      if (isActive) {
        return;
      }

      this.show(true);
    };

    _proto.show = function show(usePopper) {
      if (usePopper === void 0) {
        usePopper = false;
      }

      if (this._element.disabled || $__default['default'](this._element).hasClass(CLASS_NAME_DISABLED) || $__default['default'](this._menu).hasClass(CLASS_NAME_SHOW$2)) {
        return;
      }

      var relatedTarget = {
        relatedTarget: this._element
      };
      var showEvent = $__default['default'].Event(EVENT_SHOW$1, relatedTarget);

      var parent = Dropdown._getParentFromElement(this._element);

      $__default['default'](parent).trigger(showEvent);

      if (showEvent.isDefaultPrevented()) {
        return;
      } // Totally disable Popper for Dropdowns in Navbar


      if (!this._inNavbar && usePopper) {
        /**
         * Check for Popper dependency
         * Popper - https://popper.js.org
         */
        if (typeof Popper__default['default'] === 'undefined') {
          throw new TypeError('Bootstrap\'s dropdowns require Popper (https://popper.js.org)');
        }

        var referenceElement = this._element;

        if (this._config.reference === 'parent') {
          referenceElement = parent;
        } else if (Util.isElement(this._config.reference)) {
          referenceElement = this._config.reference; // Check if it's jQuery element

          if (typeof this._config.reference.jquery !== 'undefined') {
            referenceElement = this._config.reference[0];
          }
        } // If boundary is not `scrollParent`, then set position to `static`
        // to allow the menu to "escape" the scroll parent's boundaries
        // https://github.com/twbs/bootstrap/issues/24251


        if (this._config.boundary !== 'scrollParent') {
          $__default['default'](parent).addClass(CLASS_NAME_POSITION_STATIC);
        }

        this._popper = new Popper__default['default'](referenceElement, this._menu, this._getPopperConfig());
      } // If this is a touch-enabled device we add extra
      // empty mouseover listeners to the body's immediate children;
      // only needed because of broken event delegation on iOS
      // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html


      if ('ontouchstart' in document.documentElement && $__default['default'](parent).closest(SELECTOR_NAVBAR_NAV).length === 0) {
        $__default['default'](document.body).children().on('mouseover', null, $__default['default'].noop);
      }

      this._element.focus();

      this._element.setAttribute('aria-expanded', true);

      $__default['default'](this._menu).toggleClass(CLASS_NAME_SHOW$2);
      $__default['default'](parent).toggleClass(CLASS_NAME_SHOW$2).trigger($__default['default'].Event(EVENT_SHOWN$1, relatedTarget));
    };

    _proto.hide = function hide() {
      if (this._element.disabled || $__default['default'](this._element).hasClass(CLASS_NAME_DISABLED) || !$__default['default'](this._menu).hasClass(CLASS_NAME_SHOW$2)) {
        return;
      }

      var relatedTarget = {
        relatedTarget: this._element
      };
      var hideEvent = $__default['default'].Event(EVENT_HIDE$1, relatedTarget);

      var parent = Dropdown._getParentFromElement(this._element);

      $__default['default'](parent).trigger(hideEvent);

      if (hideEvent.isDefaultPrevented()) {
        return;
      }

      if (this._popper) {
        this._popper.destroy();
      }

      $__default['default'](this._menu).toggleClass(CLASS_NAME_SHOW$2);
      $__default['default'](parent).toggleClass(CLASS_NAME_SHOW$2).trigger($__default['default'].Event(EVENT_HIDDEN$1, relatedTarget));
    };

    _proto.dispose = function dispose() {
      $__default['default'].removeData(this._element, DATA_KEY$4);
      $__default['default'](this._element).off(EVENT_KEY$4);
      this._element = null;
      this._menu = null;

      if (this._popper !== null) {
        this._popper.destroy();

        this._popper = null;
      }
    };

    _proto.update = function update() {
      this._inNavbar = this._detectNavbar();

      if (this._popper !== null) {
        this._popper.scheduleUpdate();
      }
    } // Private
    ;

    _proto._addEventListeners = function _addEventListeners() {
      var _this = this;

      $__default['default'](this._element).on(EVENT_CLICK, function (event) {
        event.preventDefault();
        event.stopPropagation();

        _this.toggle();
      });
    };

    _proto._getConfig = function _getConfig(config) {
      config = _extends({}, this.constructor.Default, $__default['default'](this._element).data(), config);
      Util.typeCheckConfig(NAME$4, config, this.constructor.DefaultType);
      return config;
    };

    _proto._getMenuElement = function _getMenuElement() {
      if (!this._menu) {
        var parent = Dropdown._getParentFromElement(this._element);

        if (parent) {
          this._menu = parent.querySelector(SELECTOR_MENU);
        }
      }

      return this._menu;
    };

    _proto._getPlacement = function _getPlacement() {
      var $parentDropdown = $__default['default'](this._element.parentNode);
      var placement = PLACEMENT_BOTTOM; // Handle dropup

      if ($parentDropdown.hasClass(CLASS_NAME_DROPUP)) {
        placement = $__default['default'](this._menu).hasClass(CLASS_NAME_MENURIGHT) ? PLACEMENT_TOPEND : PLACEMENT_TOP;
      } else if ($parentDropdown.hasClass(CLASS_NAME_DROPRIGHT)) {
        placement = PLACEMENT_RIGHT;
      } else if ($parentDropdown.hasClass(CLASS_NAME_DROPLEFT)) {
        placement = PLACEMENT_LEFT;
      } else if ($__default['default'](this._menu).hasClass(CLASS_NAME_MENURIGHT)) {
        placement = PLACEMENT_BOTTOMEND;
      }

      return placement;
    };

    _proto._detectNavbar = function _detectNavbar() {
      return $__default['default'](this._element).closest('.navbar').length > 0;
    };

    _proto._getOffset = function _getOffset() {
      var _this2 = this;

      var offset = {};

      if (typeof this._config.offset === 'function') {
        offset.fn = function (data) {
          data.offsets = _extends({}, data.offsets, _this2._config.offset(data.offsets, _this2._element) || {});
          return data;
        };
      } else {
        offset.offset = this._config.offset;
      }

      return offset;
    };

    _proto._getPopperConfig = function _getPopperConfig() {
      var popperConfig = {
        placement: this._getPlacement(),
        modifiers: {
          offset: this._getOffset(),
          flip: {
            enabled: this._config.flip
          },
          preventOverflow: {
            boundariesElement: this._config.boundary
          }
        }
      }; // Disable Popper if we have a static display

      if (this._config.display === 'static') {
        popperConfig.modifiers.applyStyle = {
          enabled: false
        };
      }

      return _extends({}, popperConfig, this._config.popperConfig);
    } // Static
    ;

    Dropdown._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var data = $__default['default'](this).data(DATA_KEY$4);

        var _config = typeof config === 'object' ? config : null;

        if (!data) {
          data = new Dropdown(this, _config);
          $__default['default'](this).data(DATA_KEY$4, data);
        }

        if (typeof config === 'string') {
          if (typeof data[config] === 'undefined') {
            throw new TypeError("No method named \"" + config + "\"");
          }

          data[config]();
        }
      });
    };

    Dropdown._clearMenus = function _clearMenus(event) {
      if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
        return;
      }

      var toggles = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLE$2));

      for (var i = 0, len = toggles.length; i < len; i++) {
        var parent = Dropdown._getParentFromElement(toggles[i]);

        var context = $__default['default'](toggles[i]).data(DATA_KEY$4);
        var relatedTarget = {
          relatedTarget: toggles[i]
        };

        if (event && event.type === 'click') {
          relatedTarget.clickEvent = event;
        }

        if (!context) {
          continue;
        }

        var dropdownMenu = context._menu;

        if (!$__default['default'](parent).hasClass(CLASS_NAME_SHOW$2)) {
          continue;
        }

        if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && $__default['default'].contains(parent, event.target)) {
          continue;
        }

        var hideEvent = $__default['default'].Event(EVENT_HIDE$1, relatedTarget);
        $__default['default'](parent).trigger(hideEvent);

        if (hideEvent.isDefaultPrevented()) {
          continue;
        } // If this is a touch-enabled device we remove the extra
        // empty mouseover listeners we added for iOS support


        if ('ontouchstart' in document.documentElement) {
          $__default['default'](document.body).children().off('mouseover', null, $__default['default'].noop);
        }

        toggles[i].setAttribute('aria-expanded', 'false');

        if (context._popper) {
          context._popper.destroy();
        }

        $__default['default'](dropdownMenu).removeClass(CLASS_NAME_SHOW$2);
        $__default['default'](parent).removeClass(CLASS_NAME_SHOW$2).trigger($__default['default'].Event(EVENT_HIDDEN$1, relatedTarget));
      }
    };

    Dropdown._getParentFromElement = function _getParentFromElement(element) {
      var parent;
      var selector = Util.getSelectorFromElement(element);

      if (selector) {
        parent = document.querySelector(selector);
      }

      return parent || element.parentNode;
    } // eslint-disable-next-line complexity
    ;

    Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) {
      // If not input/textarea:
      //  - And not a key in REGEXP_KEYDOWN => not a dropdown command
      // If input/textarea:
      //  - If space key => not a dropdown command
      //  - If key is other than escape
      //    - If key is not up or down => not a dropdown command
      //    - If trigger inside the menu => not a dropdown command
      if (/input|textarea/i.test(event.target.tagName) ? event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE && (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE || $__default['default'](event.target).closest(SELECTOR_MENU).length) : !REGEXP_KEYDOWN.test(event.which)) {
        return;
      }

      if (this.disabled || $__default['default'](this).hasClass(CLASS_NAME_DISABLED)) {
        return;
      }

      var parent = Dropdown._getParentFromElement(this);

      var isActive = $__default['default'](parent).hasClass(CLASS_NAME_SHOW$2);

      if (!isActive && event.which === ESCAPE_KEYCODE) {
        return;
      }

      event.preventDefault();
      event.stopPropagation();

      if (!isActive || event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE) {
        if (event.which === ESCAPE_KEYCODE) {
          $__default['default'](parent.querySelector(SELECTOR_DATA_TOGGLE$2)).trigger('focus');
        }

        $__default['default'](this).trigger('click');
        return;
      }

      var items = [].slice.call(parent.querySelectorAll(SELECTOR_VISIBLE_ITEMS)).filter(function (item) {
        return $__default['default'](item).is(':visible');
      });

      if (items.length === 0) {
        return;
      }

      var index = items.indexOf(event.target);

      if (event.which === ARROW_UP_KEYCODE && index > 0) {
        // Up
        index--;
      }

      if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) {
        // Down
        index++;
      }

      if (index < 0) {
        index = 0;
      }

      items[index].focus();
    };

    _createClass(Dropdown, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION$4;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default$2;
      }
    }, {
      key: "DefaultType",
      get: function get() {
        return DefaultType$2;
      }
    }]);

    return Dropdown;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $__default['default'](document).on(EVENT_KEYDOWN_DATA_API, SELECTOR_DATA_TOGGLE$2, Dropdown._dataApiKeydownHandler).on(EVENT_KEYDOWN_DATA_API, SELECTOR_MENU, Dropdown._dataApiKeydownHandler).on(EVENT_CLICK_DATA_API$4 + " " + EVENT_KEYUP_DATA_API, Dropdown._clearMenus).on(EVENT_CLICK_DATA_API$4, SELECTOR_DATA_TOGGLE$2, function (event) {
    event.preventDefault();
    event.stopPropagation();

    Dropdown._jQueryInterface.call($__default['default'](this), 'toggle');
  }).on(EVENT_CLICK_DATA_API$4, SELECTOR_FORM_CHILD, function (e) {
    e.stopPropagation();
  });
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $__default['default'].fn[NAME$4] = Dropdown._jQueryInterface;
  $__default['default'].fn[NAME$4].Constructor = Dropdown;

  $__default['default'].fn[NAME$4].noConflict = function () {
    $__default['default'].fn[NAME$4] = JQUERY_NO_CONFLICT$4;
    return Dropdown._jQueryInterface;
  };

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$5 = 'modal';
  var VERSION$5 = '4.6.0';
  var DATA_KEY$5 = 'bs.modal';
  var EVENT_KEY$5 = "." + DATA_KEY$5;
  var DATA_API_KEY$5 = '.data-api';
  var JQUERY_NO_CONFLICT$5 = $__default['default'].fn[NAME$5];
  var ESCAPE_KEYCODE$1 = 27; // KeyboardEvent.which value for Escape (Esc) key

  var Default$3 = {
    backdrop: true,
    keyboard: true,
    focus: true,
    show: true
  };
  var DefaultType$3 = {
    backdrop: '(boolean|string)',
    keyboard: 'boolean',
    focus: 'boolean',
    show: 'boolean'
  };
  var EVENT_HIDE$2 = "hide" + EVENT_KEY$5;
  var EVENT_HIDE_PREVENTED = "hidePrevented" + EVENT_KEY$5;
  var EVENT_HIDDEN$2 = "hidden" + EVENT_KEY$5;
  var EVENT_SHOW$2 = "show" + EVENT_KEY$5;
  var EVENT_SHOWN$2 = "shown" + EVENT_KEY$5;
  var EVENT_FOCUSIN = "focusin" + EVENT_KEY$5;
  var EVENT_RESIZE = "resize" + EVENT_KEY$5;
  var EVENT_CLICK_DISMISS = "click.dismiss" + EVENT_KEY$5;
  var EVENT_KEYDOWN_DISMISS = "keydown.dismiss" + EVENT_KEY$5;
  var EVENT_MOUSEUP_DISMISS = "mouseup.dismiss" + EVENT_KEY$5;
  var EVENT_MOUSEDOWN_DISMISS = "mousedown.dismiss" + EVENT_KEY$5;
  var EVENT_CLICK_DATA_API$5 = "click" + EVENT_KEY$5 + DATA_API_KEY$5;
  var CLASS_NAME_SCROLLABLE = 'modal-dialog-scrollable';
  var CLASS_NAME_SCROLLBAR_MEASURER = 'modal-scrollbar-measure';
  var CLASS_NAME_BACKDROP = 'modal-backdrop';
  var CLASS_NAME_OPEN = 'modal-open';
  var CLASS_NAME_FADE$1 = 'fade';
  var CLASS_NAME_SHOW$3 = 'show';
  var CLASS_NAME_STATIC = 'modal-static';
  var SELECTOR_DIALOG = '.modal-dialog';
  var SELECTOR_MODAL_BODY = '.modal-body';
  var SELECTOR_DATA_TOGGLE$3 = '[data-toggle="modal"]';
  var SELECTOR_DATA_DISMISS = '[data-dismiss="modal"]';
  var SELECTOR_FIXED_CONTENT = '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top';
  var SELECTOR_STICKY_CONTENT = '.sticky-top';
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Modal = /*#__PURE__*/function () {
    function Modal(element, config) {
      this._config = this._getConfig(config);
      this._element = element;
      this._dialog = element.querySelector(SELECTOR_DIALOG);
      this._backdrop = null;
      this._isShown = false;
      this._isBodyOverflowing = false;
      this._ignoreBackdropClick = false;
      this._isTransitioning = false;
      this._scrollbarWidth = 0;
    } // Getters


    var _proto = Modal.prototype;

    // Public
    _proto.toggle = function toggle(relatedTarget) {
      return this._isShown ? this.hide() : this.show(relatedTarget);
    };

    _proto.show = function show(relatedTarget) {
      var _this = this;

      if (this._isShown || this._isTransitioning) {
        return;
      }

      if ($__default['default'](this._element).hasClass(CLASS_NAME_FADE$1)) {
        this._isTransitioning = true;
      }

      var showEvent = $__default['default'].Event(EVENT_SHOW$2, {
        relatedTarget: relatedTarget
      });
      $__default['default'](this._element).trigger(showEvent);

      if (this._isShown || showEvent.isDefaultPrevented()) {
        return;
      }

      this._isShown = true;

      this._checkScrollbar();

      this._setScrollbar();

      this._adjustDialog();

      this._setEscapeEvent();

      this._setResizeEvent();

      $__default['default'](this._element).on(EVENT_CLICK_DISMISS, SELECTOR_DATA_DISMISS, function (event) {
        return _this.hide(event);
      });
      $__default['default'](this._dialog).on(EVENT_MOUSEDOWN_DISMISS, function () {
        $__default['default'](_this._element).one(EVENT_MOUSEUP_DISMISS, function (event) {
          if ($__default['default'](event.target).is(_this._element)) {
            _this._ignoreBackdropClick = true;
          }
        });
      });

      this._showBackdrop(function () {
        return _this._showElement(relatedTarget);
      });
    };

    _proto.hide = function hide(event) {
      var _this2 = this;

      if (event) {
        event.preventDefault();
      }

      if (!this._isShown || this._isTransitioning) {
        return;
      }

      var hideEvent = $__default['default'].Event(EVENT_HIDE$2);
      $__default['default'](this._element).trigger(hideEvent);

      if (!this._isShown || hideEvent.isDefaultPrevented()) {
        return;
      }

      this._isShown = false;
      var transition = $__default['default'](this._element).hasClass(CLASS_NAME_FADE$1);

      if (transition) {
        this._isTransitioning = true;
      }

      this._setEscapeEvent();

      this._setResizeEvent();

      $__default['default'](document).off(EVENT_FOCUSIN);
      $__default['default'](this._element).removeClass(CLASS_NAME_SHOW$3);
      $__default['default'](this._element).off(EVENT_CLICK_DISMISS);
      $__default['default'](this._dialog).off(EVENT_MOUSEDOWN_DISMISS);

      if (transition) {
        var transitionDuration = Util.getTransitionDurationFromElement(this._element);
        $__default['default'](this._element).one(Util.TRANSITION_END, function (event) {
          return _this2._hideModal(event);
        }).emulateTransitionEnd(transitionDuration);
      } else {
        this._hideModal();
      }
    };

    _proto.dispose = function dispose() {
      [window, this._element, this._dialog].forEach(function (htmlElement) {
        return $__default['default'](htmlElement).off(EVENT_KEY$5);
      });
      /**
       * `document` has 2 events `EVENT_FOCUSIN` and `EVENT_CLICK_DATA_API`
       * Do not move `document` in `htmlElements` array
       * It will remove `EVENT_CLICK_DATA_API` event that should remain
       */

      $__default['default'](document).off(EVENT_FOCUSIN);
      $__default['default'].removeData(this._element, DATA_KEY$5);
      this._config = null;
      this._element = null;
      this._dialog = null;
      this._backdrop = null;
      this._isShown = null;
      this._isBodyOverflowing = null;
      this._ignoreBackdropClick = null;
      this._isTransitioning = null;
      this._scrollbarWidth = null;
    };

    _proto.handleUpdate = function handleUpdate() {
      this._adjustDialog();
    } // Private
    ;

    _proto._getConfig = function _getConfig(config) {
      config = _extends({}, Default$3, config);
      Util.typeCheckConfig(NAME$5, config, DefaultType$3);
      return config;
    };

    _proto._triggerBackdropTransition = function _triggerBackdropTransition() {
      var _this3 = this;

      var hideEventPrevented = $__default['default'].Event(EVENT_HIDE_PREVENTED);
      $__default['default'](this._element).trigger(hideEventPrevented);

      if (hideEventPrevented.isDefaultPrevented()) {
        return;
      }

      var isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight;

      if (!isModalOverflowing) {
        this._element.style.overflowY = 'hidden';
      }

      this._element.classList.add(CLASS_NAME_STATIC);

      var modalTransitionDuration = Util.getTransitionDurationFromElement(this._dialog);
      $__default['default'](this._element).off(Util.TRANSITION_END);
      $__default['default'](this._element).one(Util.TRANSITION_END, function () {
        _this3._element.classList.remove(CLASS_NAME_STATIC);

        if (!isModalOverflowing) {
          $__default['default'](_this3._element).one(Util.TRANSITION_END, function () {
            _this3._element.style.overflowY = '';
          }).emulateTransitionEnd(_this3._element, modalTransitionDuration);
        }
      }).emulateTransitionEnd(modalTransitionDuration);

      this._element.focus();
    };

    _proto._showElement = function _showElement(relatedTarget) {
      var _this4 = this;

      var transition = $__default['default'](this._element).hasClass(CLASS_NAME_FADE$1);
      var modalBody = this._dialog ? this._dialog.querySelector(SELECTOR_MODAL_BODY) : null;

      if (!this._element.parentNode || this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
        // Don't move modal's DOM position
        document.body.appendChild(this._element);
      }

      this._element.style.display = 'block';

      this._element.removeAttribute('aria-hidden');

      this._element.setAttribute('aria-modal', true);

      this._element.setAttribute('role', 'dialog');

      if ($__default['default'](this._dialog).hasClass(CLASS_NAME_SCROLLABLE) && modalBody) {
        modalBody.scrollTop = 0;
      } else {
        this._element.scrollTop = 0;
      }

      if (transition) {
        Util.reflow(this._element);
      }

      $__default['default'](this._element).addClass(CLASS_NAME_SHOW$3);

      if (this._config.focus) {
        this._enforceFocus();
      }

      var shownEvent = $__default['default'].Event(EVENT_SHOWN$2, {
        relatedTarget: relatedTarget
      });

      var transitionComplete = function transitionComplete() {
        if (_this4._config.focus) {
          _this4._element.focus();
        }

        _this4._isTransitioning = false;
        $__default['default'](_this4._element).trigger(shownEvent);
      };

      if (transition) {
        var transitionDuration = Util.getTransitionDurationFromElement(this._dialog);
        $__default['default'](this._dialog).one(Util.TRANSITION_END, transitionComplete).emulateTransitionEnd(transitionDuration);
      } else {
        transitionComplete();
      }
    };

    _proto._enforceFocus = function _enforceFocus() {
      var _this5 = this;

      $__default['default'](document).off(EVENT_FOCUSIN) // Guard against infinite focus loop
      .on(EVENT_FOCUSIN, function (event) {
        if (document !== event.target && _this5._element !== event.target && $__default['default'](_this5._element).has(event.target).length === 0) {
          _this5._element.focus();
        }
      });
    };

    _proto._setEscapeEvent = function _setEscapeEvent() {
      var _this6 = this;

      if (this._isShown) {
        $__default['default'](this._element).on(EVENT_KEYDOWN_DISMISS, function (event) {
          if (_this6._config.keyboard && event.which === ESCAPE_KEYCODE$1) {
            event.preventDefault();

            _this6.hide();
          } else if (!_this6._config.keyboard && event.which === ESCAPE_KEYCODE$1) {
            _this6._triggerBackdropTransition();
          }
        });
      } else if (!this._isShown) {
        $__default['default'](this._element).off(EVENT_KEYDOWN_DISMISS);
      }
    };

    _proto._setResizeEvent = function _setResizeEvent() {
      var _this7 = this;

      if (this._isShown) {
        $__default['default'](window).on(EVENT_RESIZE, function (event) {
          return _this7.handleUpdate(event);
        });
      } else {
        $__default['default'](window).off(EVENT_RESIZE);
      }
    };

    _proto._hideModal = function _hideModal() {
      var _this8 = this;

      this._element.style.display = 'none';

      this._element.setAttribute('aria-hidden', true);

      this._element.removeAttribute('aria-modal');

      this._element.removeAttribute('role');

      this._isTransitioning = false;

      this._showBackdrop(function () {
        $__default['default'](document.body).removeClass(CLASS_NAME_OPEN);

        _this8._resetAdjustments();

        _this8._resetScrollbar();

        $__default['default'](_this8._element).trigger(EVENT_HIDDEN$2);
      });
    };

    _proto._removeBackdrop = function _removeBackdrop() {
      if (this._backdrop) {
        $__default['default'](this._backdrop).remove();
        this._backdrop = null;
      }
    };

    _proto._showBackdrop = function _showBackdrop(callback) {
      var _this9 = this;

      var animate = $__default['default'](this._element).hasClass(CLASS_NAME_FADE$1) ? CLASS_NAME_FADE$1 : '';

      if (this._isShown && this._config.backdrop) {
        this._backdrop = document.createElement('div');
        this._backdrop.className = CLASS_NAME_BACKDROP;

        if (animate) {
          this._backdrop.classList.add(animate);
        }

        $__default['default'](this._backdrop).appendTo(document.body);
        $__default['default'](this._element).on(EVENT_CLICK_DISMISS, function (event) {
          if (_this9._ignoreBackdropClick) {
            _this9._ignoreBackdropClick = false;
            return;
          }

          if (event.target !== event.currentTarget) {
            return;
          }

          if (_this9._config.backdrop === 'static') {
            _this9._triggerBackdropTransition();
          } else {
            _this9.hide();
          }
        });

        if (animate) {
          Util.reflow(this._backdrop);
        }

        $__default['default'](this._backdrop).addClass(CLASS_NAME_SHOW$3);

        if (!callback) {
          return;
        }

        if (!animate) {
          callback();
          return;
        }

        var backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop);
        $__default['default'](this._backdrop).one(Util.TRANSITION_END, callback).emulateTransitionEnd(backdropTransitionDuration);
      } else if (!this._isShown && this._backdrop) {
        $__default['default'](this._backdrop).removeClass(CLASS_NAME_SHOW$3);

        var callbackRemove = function callbackRemove() {
          _this9._removeBackdrop();

          if (callback) {
            callback();
          }
        };

        if ($__default['default'](this._element).hasClass(CLASS_NAME_FADE$1)) {
          var _backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop);

          $__default['default'](this._backdrop).one(Util.TRANSITION_END, callbackRemove).emulateTransitionEnd(_backdropTransitionDuration);
        } else {
          callbackRemove();
        }
      } else if (callback) {
        callback();
      }
    } // ----------------------------------------------------------------------
    // the following methods are used to handle overflowing modals
    // todo (fat): these should probably be refactored out of modal.js
    // ----------------------------------------------------------------------
    ;

    _proto._adjustDialog = function _adjustDialog() {
      var isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight;

      if (!this._isBodyOverflowing && isModalOverflowing) {
        this._element.style.paddingLeft = this._scrollbarWidth + "px";
      }

      if (this._isBodyOverflowing && !isModalOverflowing) {
        this._element.style.paddingRight = this._scrollbarWidth + "px";
      }
    };

    _proto._resetAdjustments = function _resetAdjustments() {
      this._element.style.paddingLeft = '';
      this._element.style.paddingRight = '';
    };

    _proto._checkScrollbar = function _checkScrollbar() {
      var rect = document.body.getBoundingClientRect();
      this._isBodyOverflowing = Math.round(rect.left + rect.right) < window.innerWidth;
      this._scrollbarWidth = this._getScrollbarWidth();
    };

    _proto._setScrollbar = function _setScrollbar() {
      var _this10 = this;

      if (this._isBodyOverflowing) {
        // Note: DOMNode.style.paddingRight returns the actual value or '' if not set
        //   while $(DOMNode).css('padding-right') returns the calculated value or 0 if not set
        var fixedContent = [].slice.call(document.querySelectorAll(SELECTOR_FIXED_CONTENT));
        var stickyContent = [].slice.call(document.querySelectorAll(SELECTOR_STICKY_CONTENT)); // Adjust fixed content padding

        $__default['default'](fixedContent).each(function (index, element) {
          var actualPadding = element.style.paddingRight;
          var calculatedPadding = $__default['default'](element).css('padding-right');
          $__default['default'](element).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + _this10._scrollbarWidth + "px");
        }); // Adjust sticky content margin

        $__default['default'](stickyContent).each(function (index, element) {
          var actualMargin = element.style.marginRight;
          var calculatedMargin = $__default['default'](element).css('margin-right');
          $__default['default'](element).data('margin-right', actualMargin).css('margin-right', parseFloat(calculatedMargin) - _this10._scrollbarWidth + "px");
        }); // Adjust body padding

        var actualPadding = document.body.style.paddingRight;
        var calculatedPadding = $__default['default'](document.body).css('padding-right');
        $__default['default'](document.body).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + this._scrollbarWidth + "px");
      }

      $__default['default'](document.body).addClass(CLASS_NAME_OPEN);
    };

    _proto._resetScrollbar = function _resetScrollbar() {
      // Restore fixed content padding
      var fixedContent = [].slice.call(document.querySelectorAll(SELECTOR_FIXED_CONTENT));
      $__default['default'](fixedContent).each(function (index, element) {
        var padding = $__default['default'](element).data('padding-right');
        $__default['default'](element).removeData('padding-right');
        element.style.paddingRight = padding ? padding : '';
      }); // Restore sticky content

      var elements = [].slice.call(document.querySelectorAll("" + SELECTOR_STICKY_CONTENT));
      $__default['default'](elements).each(function (index, element) {
        var margin = $__default['default'](element).data('margin-right');

        if (typeof margin !== 'undefined') {
          $__default['default'](element).css('margin-right', margin).removeData('margin-right');
        }
      }); // Restore body padding

      var padding = $__default['default'](document.body).data('padding-right');
      $__default['default'](document.body).removeData('padding-right');
      document.body.style.paddingRight = padding ? padding : '';
    };

    _proto._getScrollbarWidth = function _getScrollbarWidth() {
      // thx d.walsh
      var scrollDiv = document.createElement('div');
      scrollDiv.className = CLASS_NAME_SCROLLBAR_MEASURER;
      document.body.appendChild(scrollDiv);
      var scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth;
      document.body.removeChild(scrollDiv);
      return scrollbarWidth;
    } // Static
    ;

    Modal._jQueryInterface = function _jQueryInterface(config, relatedTarget) {
      return this.each(function () {
        var data = $__default['default'](this).data(DATA_KEY$5);

        var _config = _extends({}, Default$3, $__default['default'](this).data(), typeof config === 'object' && config ? config : {});

        if (!data) {
          data = new Modal(this, _config);
          $__default['default'](this).data(DATA_KEY$5, data);
        }

        if (typeof config === 'string') {
          if (typeof data[config] === 'undefined') {
            throw new TypeError("No method named \"" + config + "\"");
          }

          data[config](relatedTarget);
        } else if (_config.show) {
          data.show(relatedTarget);
        }
      });
    };

    _createClass(Modal, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION$5;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default$3;
      }
    }]);

    return Modal;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $__default['default'](document).on(EVENT_CLICK_DATA_API$5, SELECTOR_DATA_TOGGLE$3, function (event) {
    var _this11 = this;

    var target;
    var selector = Util.getSelectorFromElement(this);

    if (selector) {
      target = document.querySelector(selector);
    }

    var config = $__default['default'](target).data(DATA_KEY$5) ? 'toggle' : _extends({}, $__default['default'](target).data(), $__default['default'](this).data());

    if (this.tagName === 'A' || this.tagName === 'AREA') {
      event.preventDefault();
    }

    var $target = $__default['default'](target).one(EVENT_SHOW$2, function (showEvent) {
      if (showEvent.isDefaultPrevented()) {
        // Only register focus restorer if modal will actually get shown
        return;
      }

      $target.one(EVENT_HIDDEN$2, function () {
        if ($__default['default'](_this11).is(':visible')) {
          _this11.focus();
        }
      });
    });

    Modal._jQueryInterface.call($__default['default'](target), config, this);
  });
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $__default['default'].fn[NAME$5] = Modal._jQueryInterface;
  $__default['default'].fn[NAME$5].Constructor = Modal;

  $__default['default'].fn[NAME$5].noConflict = function () {
    $__default['default'].fn[NAME$5] = JQUERY_NO_CONFLICT$5;
    return Modal._jQueryInterface;
  };

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.6.0): tools/sanitizer.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
   * --------------------------------------------------------------------------
   */
  var uriAttrs = ['background', 'cite', 'href', 'itemtype', 'longdesc', 'poster', 'src', 'xlink:href'];
  var ARIA_ATTRIBUTE_PATTERN = /^aria-[\w-]*$/i;
  var DefaultWhitelist = {
    // Global attributes allowed on any supplied element below.
    '*': ['class', 'dir', 'id', 'lang', 'role', ARIA_ATTRIBUTE_PATTERN],
    a: ['target', 'href', 'title', 'rel'],
    area: [],
    b: [],
    br: [],
    col: [],
    code: [],
    div: [],
    em: [],
    hr: [],
    h1: [],
    h2: [],
    h3: [],
    h4: [],
    h5: [],
    h6: [],
    i: [],
    img: ['src', 'srcset', 'alt', 'title', 'width', 'height'],
    li: [],
    ol: [],
    p: [],
    pre: [],
    s: [],
    small: [],
    span: [],
    sub: [],
    sup: [],
    strong: [],
    u: [],
    ul: []
  };
  /**
   * A pattern that recognizes a commonly useful subset of URLs that are safe.
   *
   * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
   */

  var SAFE_URL_PATTERN = /^(?:(?:https?|mailto|ftp|tel|file):|[^#&/:?]*(?:[#/?]|$))/gi;
  /**
   * A pattern that matches safe data URLs. Only matches image, video and audio types.
   *
   * Shoutout to Angular 7 https://github.com/angular/angular/blob/7.2.4/packages/core/src/sanitization/url_sanitizer.ts
   */

  var DATA_URL_PATTERN = /^data:(?:image\/(?:bmp|gif|jpeg|jpg|png|tiff|webp)|video\/(?:mpeg|mp4|ogg|webm)|audio\/(?:mp3|oga|ogg|opus));base64,[\d+/a-z]+=*$/i;

  function allowedAttribute(attr, allowedAttributeList) {
    var attrName = attr.nodeName.toLowerCase();

    if (allowedAttributeList.indexOf(attrName) !== -1) {
      if (uriAttrs.indexOf(attrName) !== -1) {
        return Boolean(attr.nodeValue.match(SAFE_URL_PATTERN) || attr.nodeValue.match(DATA_URL_PATTERN));
      }

      return true;
    }

    var regExp = allowedAttributeList.filter(function (attrRegex) {
      return attrRegex instanceof RegExp;
    }); // Check if a regular expression validates the attribute.

    for (var i = 0, len = regExp.length; i < len; i++) {
      if (attrName.match(regExp[i])) {
        return true;
      }
    }

    return false;
  }

  function sanitizeHtml(unsafeHtml, whiteList, sanitizeFn) {
    if (unsafeHtml.length === 0) {
      return unsafeHtml;
    }

    if (sanitizeFn && typeof sanitizeFn === 'function') {
      return sanitizeFn(unsafeHtml);
    }

    var domParser = new window.DOMParser();
    var createdDocument = domParser.parseFromString(unsafeHtml, 'text/html');
    var whitelistKeys = Object.keys(whiteList);
    var elements = [].slice.call(createdDocument.body.querySelectorAll('*'));

    var _loop = function _loop(i, len) {
      var el = elements[i];
      var elName = el.nodeName.toLowerCase();

      if (whitelistKeys.indexOf(el.nodeName.toLowerCase()) === -1) {
        el.parentNode.removeChild(el);
        return "continue";
      }

      var attributeList = [].slice.call(el.attributes);
      var whitelistedAttributes = [].concat(whiteList['*'] || [], whiteList[elName] || []);
      attributeList.forEach(function (attr) {
        if (!allowedAttribute(attr, whitelistedAttributes)) {
          el.removeAttribute(attr.nodeName);
        }
      });
    };

    for (var i = 0, len = elements.length; i < len; i++) {
      var _ret = _loop(i);

      if (_ret === "continue") continue;
    }

    return createdDocument.body.innerHTML;
  }

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$6 = 'tooltip';
  var VERSION$6 = '4.6.0';
  var DATA_KEY$6 = 'bs.tooltip';
  var EVENT_KEY$6 = "." + DATA_KEY$6;
  var JQUERY_NO_CONFLICT$6 = $__default['default'].fn[NAME$6];
  var CLASS_PREFIX = 'bs-tooltip';
  var BSCLS_PREFIX_REGEX = new RegExp("(^|\\s)" + CLASS_PREFIX + "\\S+", 'g');
  var DISALLOWED_ATTRIBUTES = ['sanitize', 'whiteList', 'sanitizeFn'];
  var DefaultType$4 = {
    animation: 'boolean',
    template: 'string',
    title: '(string|element|function)',
    trigger: 'string',
    delay: '(number|object)',
    html: 'boolean',
    selector: '(string|boolean)',
    placement: '(string|function)',
    offset: '(number|string|function)',
    container: '(string|element|boolean)',
    fallbackPlacement: '(string|array)',
    boundary: '(string|element)',
    customClass: '(string|function)',
    sanitize: 'boolean',
    sanitizeFn: '(null|function)',
    whiteList: 'object',
    popperConfig: '(null|object)'
  };
  var AttachmentMap = {
    AUTO: 'auto',
    TOP: 'top',
    RIGHT: 'right',
    BOTTOM: 'bottom',
    LEFT: 'left'
  };
  var Default$4 = {
    animation: true,
    template: '<div class="tooltip" role="tooltip">' + '<div class="arrow"></div>' + '<div class="tooltip-inner"></div></div>',
    trigger: 'hover focus',
    title: '',
    delay: 0,
    html: false,
    selector: false,
    placement: 'top',
    offset: 0,
    container: false,
    fallbackPlacement: 'flip',
    boundary: 'scrollParent',
    customClass: '',
    sanitize: true,
    sanitizeFn: null,
    whiteList: DefaultWhitelist,
    popperConfig: null
  };
  var HOVER_STATE_SHOW = 'show';
  var HOVER_STATE_OUT = 'out';
  var Event = {
    HIDE: "hide" + EVENT_KEY$6,
    HIDDEN: "hidden" + EVENT_KEY$6,
    SHOW: "show" + EVENT_KEY$6,
    SHOWN: "shown" + EVENT_KEY$6,
    INSERTED: "inserted" + EVENT_KEY$6,
    CLICK: "click" + EVENT_KEY$6,
    FOCUSIN: "focusin" + EVENT_KEY$6,
    FOCUSOUT: "focusout" + EVENT_KEY$6,
    MOUSEENTER: "mouseenter" + EVENT_KEY$6,
    MOUSELEAVE: "mouseleave" + EVENT_KEY$6
  };
  var CLASS_NAME_FADE$2 = 'fade';
  var CLASS_NAME_SHOW$4 = 'show';
  var SELECTOR_TOOLTIP_INNER = '.tooltip-inner';
  var SELECTOR_ARROW = '.arrow';
  var TRIGGER_HOVER = 'hover';
  var TRIGGER_FOCUS = 'focus';
  var TRIGGER_CLICK = 'click';
  var TRIGGER_MANUAL = 'manual';
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Tooltip = /*#__PURE__*/function () {
    function Tooltip(element, config) {
      if (typeof Popper__default['default'] === 'undefined') {
        throw new TypeError('Bootstrap\'s tooltips require Popper (https://popper.js.org)');
      } // private


      this._isEnabled = true;
      this._timeout = 0;
      this._hoverState = '';
      this._activeTrigger = {};
      this._popper = null; // Protected

      this.element = element;
      this.config = this._getConfig(config);
      this.tip = null;

      this._setListeners();
    } // Getters


    var _proto = Tooltip.prototype;

    // Public
    _proto.enable = function enable() {
      this._isEnabled = true;
    };

    _proto.disable = function disable() {
      this._isEnabled = false;
    };

    _proto.toggleEnabled = function toggleEnabled() {
      this._isEnabled = !this._isEnabled;
    };

    _proto.toggle = function toggle(event) {
      if (!this._isEnabled) {
        return;
      }

      if (event) {
        var dataKey = this.constructor.DATA_KEY;
        var context = $__default['default'](event.currentTarget).data(dataKey);

        if (!context) {
          context = new this.constructor(event.currentTarget, this._getDelegateConfig());
          $__default['default'](event.currentTarget).data(dataKey, context);
        }

        context._activeTrigger.click = !context._activeTrigger.click;

        if (context._isWithActiveTrigger()) {
          context._enter(null, context);
        } else {
          context._leave(null, context);
        }
      } else {
        if ($__default['default'](this.getTipElement()).hasClass(CLASS_NAME_SHOW$4)) {
          this._leave(null, this);

          return;
        }

        this._enter(null, this);
      }
    };

    _proto.dispose = function dispose() {
      clearTimeout(this._timeout);
      $__default['default'].removeData(this.element, this.constructor.DATA_KEY);
      $__default['default'](this.element).off(this.constructor.EVENT_KEY);
      $__default['default'](this.element).closest('.modal').off('hide.bs.modal', this._hideModalHandler);

      if (this.tip) {
        $__default['default'](this.tip).remove();
      }

      this._isEnabled = null;
      this._timeout = null;
      this._hoverState = null;
      this._activeTrigger = null;

      if (this._popper) {
        this._popper.destroy();
      }

      this._popper = null;
      this.element = null;
      this.config = null;
      this.tip = null;
    };

    _proto.show = function show() {
      var _this = this;

      if ($__default['default'](this.element).css('display') === 'none') {
        throw new Error('Please use show on visible elements');
      }

      var showEvent = $__default['default'].Event(this.constructor.Event.SHOW);

      if (this.isWithContent() && this._isEnabled) {
        $__default['default'](this.element).trigger(showEvent);
        var shadowRoot = Util.findShadowRoot(this.element);
        var isInTheDom = $__default['default'].contains(shadowRoot !== null ? shadowRoot : this.element.ownerDocument.documentElement, this.element);

        if (showEvent.isDefaultPrevented() || !isInTheDom) {
          return;
        }

        var tip = this.getTipElement();
        var tipId = Util.getUID(this.constructor.NAME);
        tip.setAttribute('id', tipId);
        this.element.setAttribute('aria-describedby', tipId);
        this.setContent();

        if (this.config.animation) {
          $__default['default'](tip).addClass(CLASS_NAME_FADE$2);
        }

        var placement = typeof this.config.placement === 'function' ? this.config.placement.call(this, tip, this.element) : this.config.placement;

        var attachment = this._getAttachment(placement);

        this.addAttachmentClass(attachment);

        var container = this._getContainer();

        $__default['default'](tip).data(this.constructor.DATA_KEY, this);

        if (!$__default['default'].contains(this.element.ownerDocument.documentElement, this.tip)) {
          $__default['default'](tip).appendTo(container);
        }

        $__default['default'](this.element).trigger(this.constructor.Event.INSERTED);
        this._popper = new Popper__default['default'](this.element, tip, this._getPopperConfig(attachment));
        $__default['default'](tip).addClass(CLASS_NAME_SHOW$4);
        $__default['default'](tip).addClass(this.config.customClass); // If this is a touch-enabled device we add extra
        // empty mouseover listeners to the body's immediate children;
        // only needed because of broken event delegation on iOS
        // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html

        if ('ontouchstart' in document.documentElement) {
          $__default['default'](document.body).children().on('mouseover', null, $__default['default'].noop);
        }

        var complete = function complete() {
          if (_this.config.animation) {
            _this._fixTransition();
          }

          var prevHoverState = _this._hoverState;
          _this._hoverState = null;
          $__default['default'](_this.element).trigger(_this.constructor.Event.SHOWN);

          if (prevHoverState === HOVER_STATE_OUT) {
            _this._leave(null, _this);
          }
        };

        if ($__default['default'](this.tip).hasClass(CLASS_NAME_FADE$2)) {
          var transitionDuration = Util.getTransitionDurationFromElement(this.tip);
          $__default['default'](this.tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
        } else {
          complete();
        }
      }
    };

    _proto.hide = function hide(callback) {
      var _this2 = this;

      var tip = this.getTipElement();
      var hideEvent = $__default['default'].Event(this.constructor.Event.HIDE);

      var complete = function complete() {
        if (_this2._hoverState !== HOVER_STATE_SHOW && tip.parentNode) {
          tip.parentNode.removeChild(tip);
        }

        _this2._cleanTipClass();

        _this2.element.removeAttribute('aria-describedby');

        $__default['default'](_this2.element).trigger(_this2.constructor.Event.HIDDEN);

        if (_this2._popper !== null) {
          _this2._popper.destroy();
        }

        if (callback) {
          callback();
        }
      };

      $__default['default'](this.element).trigger(hideEvent);

      if (hideEvent.isDefaultPrevented()) {
        return;
      }

      $__default['default'](tip).removeClass(CLASS_NAME_SHOW$4); // If this is a touch-enabled device we remove the extra
      // empty mouseover listeners we added for iOS support

      if ('ontouchstart' in document.documentElement) {
        $__default['default'](document.body).children().off('mouseover', null, $__default['default'].noop);
      }

      this._activeTrigger[TRIGGER_CLICK] = false;
      this._activeTrigger[TRIGGER_FOCUS] = false;
      this._activeTrigger[TRIGGER_HOVER] = false;

      if ($__default['default'](this.tip).hasClass(CLASS_NAME_FADE$2)) {
        var transitionDuration = Util.getTransitionDurationFromElement(tip);
        $__default['default'](tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
      } else {
        complete();
      }

      this._hoverState = '';
    };

    _proto.update = function update() {
      if (this._popper !== null) {
        this._popper.scheduleUpdate();
      }
    } // Protected
    ;

    _proto.isWithContent = function isWithContent() {
      return Boolean(this.getTitle());
    };

    _proto.addAttachmentClass = function addAttachmentClass(attachment) {
      $__default['default'](this.getTipElement()).addClass(CLASS_PREFIX + "-" + attachment);
    };

    _proto.getTipElement = function getTipElement() {
      this.tip = this.tip || $__default['default'](this.config.template)[0];
      return this.tip;
    };

    _proto.setContent = function setContent() {
      var tip = this.getTipElement();
      this.setElementContent($__default['default'](tip.querySelectorAll(SELECTOR_TOOLTIP_INNER)), this.getTitle());
      $__default['default'](tip).removeClass(CLASS_NAME_FADE$2 + " " + CLASS_NAME_SHOW$4);
    };

    _proto.setElementContent = function setElementContent($element, content) {
      if (typeof content === 'object' && (content.nodeType || content.jquery)) {
        // Content is a DOM node or a jQuery
        if (this.config.html) {
          if (!$__default['default'](content).parent().is($element)) {
            $element.empty().append(content);
          }
        } else {
          $element.text($__default['default'](content).text());
        }

        return;
      }

      if (this.config.html) {
        if (this.config.sanitize) {
          content = sanitizeHtml(content, this.config.whiteList, this.config.sanitizeFn);
        }

        $element.html(content);
      } else {
        $element.text(content);
      }
    };

    _proto.getTitle = function getTitle() {
      var title = this.element.getAttribute('data-original-title');

      if (!title) {
        title = typeof this.config.title === 'function' ? this.config.title.call(this.element) : this.config.title;
      }

      return title;
    } // Private
    ;

    _proto._getPopperConfig = function _getPopperConfig(attachment) {
      var _this3 = this;

      var defaultBsConfig = {
        placement: attachment,
        modifiers: {
          offset: this._getOffset(),
          flip: {
            behavior: this.config.fallbackPlacement
          },
          arrow: {
            element: SELECTOR_ARROW
          },
          preventOverflow: {
            boundariesElement: this.config.boundary
          }
        },
        onCreate: function onCreate(data) {
          if (data.originalPlacement !== data.placement) {
            _this3._handlePopperPlacementChange(data);
          }
        },
        onUpdate: function onUpdate(data) {
          return _this3._handlePopperPlacementChange(data);
        }
      };
      return _extends({}, defaultBsConfig, this.config.popperConfig);
    };

    _proto._getOffset = function _getOffset() {
      var _this4 = this;

      var offset = {};

      if (typeof this.config.offset === 'function') {
        offset.fn = function (data) {
          data.offsets = _extends({}, data.offsets, _this4.config.offset(data.offsets, _this4.element) || {});
          return data;
        };
      } else {
        offset.offset = this.config.offset;
      }

      return offset;
    };

    _proto._getContainer = function _getContainer() {
      if (this.config.container === false) {
        return document.body;
      }

      if (Util.isElement(this.config.container)) {
        return $__default['default'](this.config.container);
      }

      return $__default['default'](document).find(this.config.container);
    };

    _proto._getAttachment = function _getAttachment(placement) {
      return AttachmentMap[placement.toUpperCase()];
    };

    _proto._setListeners = function _setListeners() {
      var _this5 = this;

      var triggers = this.config.trigger.split(' ');
      triggers.forEach(function (trigger) {
        if (trigger === 'click') {
          $__default['default'](_this5.element).on(_this5.constructor.Event.CLICK, _this5.config.selector, function (event) {
            return _this5.toggle(event);
          });
        } else if (trigger !== TRIGGER_MANUAL) {
          var eventIn = trigger === TRIGGER_HOVER ? _this5.constructor.Event.MOUSEENTER : _this5.constructor.Event.FOCUSIN;
          var eventOut = trigger === TRIGGER_HOVER ? _this5.constructor.Event.MOUSELEAVE : _this5.constructor.Event.FOCUSOUT;
          $__default['default'](_this5.element).on(eventIn, _this5.config.selector, function (event) {
            return _this5._enter(event);
          }).on(eventOut, _this5.config.selector, function (event) {
            return _this5._leave(event);
          });
        }
      });

      this._hideModalHandler = function () {
        if (_this5.element) {
          _this5.hide();
        }
      };

      $__default['default'](this.element).closest('.modal').on('hide.bs.modal', this._hideModalHandler);

      if (this.config.selector) {
        this.config = _extends({}, this.config, {
          trigger: 'manual',
          selector: ''
        });
      } else {
        this._fixTitle();
      }
    };

    _proto._fixTitle = function _fixTitle() {
      var titleType = typeof this.element.getAttribute('data-original-title');

      if (this.element.getAttribute('title') || titleType !== 'string') {
        this.element.setAttribute('data-original-title', this.element.getAttribute('title') || '');
        this.element.setAttribute('title', '');
      }
    };

    _proto._enter = function _enter(event, context) {
      var dataKey = this.constructor.DATA_KEY;
      context = context || $__default['default'](event.currentTarget).data(dataKey);

      if (!context) {
        context = new this.constructor(event.currentTarget, this._getDelegateConfig());
        $__default['default'](event.currentTarget).data(dataKey, context);
      }

      if (event) {
        context._activeTrigger[event.type === 'focusin' ? TRIGGER_FOCUS : TRIGGER_HOVER] = true;
      }

      if ($__default['default'](context.getTipElement()).hasClass(CLASS_NAME_SHOW$4) || context._hoverState === HOVER_STATE_SHOW) {
        context._hoverState = HOVER_STATE_SHOW;
        return;
      }

      clearTimeout(context._timeout);
      context._hoverState = HOVER_STATE_SHOW;

      if (!context.config.delay || !context.config.delay.show) {
        context.show();
        return;
      }

      context._timeout = setTimeout(function () {
        if (context._hoverState === HOVER_STATE_SHOW) {
          context.show();
        }
      }, context.config.delay.show);
    };

    _proto._leave = function _leave(event, context) {
      var dataKey = this.constructor.DATA_KEY;
      context = context || $__default['default'](event.currentTarget).data(dataKey);

      if (!context) {
        context = new this.constructor(event.currentTarget, this._getDelegateConfig());
        $__default['default'](event.currentTarget).data(dataKey, context);
      }

      if (event) {
        context._activeTrigger[event.type === 'focusout' ? TRIGGER_FOCUS : TRIGGER_HOVER] = false;
      }

      if (context._isWithActiveTrigger()) {
        return;
      }

      clearTimeout(context._timeout);
      context._hoverState = HOVER_STATE_OUT;

      if (!context.config.delay || !context.config.delay.hide) {
        context.hide();
        return;
      }

      context._timeout = setTimeout(function () {
        if (context._hoverState === HOVER_STATE_OUT) {
          context.hide();
        }
      }, context.config.delay.hide);
    };

    _proto._isWithActiveTrigger = function _isWithActiveTrigger() {
      for (var trigger in this._activeTrigger) {
        if (this._activeTrigger[trigger]) {
          return true;
        }
      }

      return false;
    };

    _proto._getConfig = function _getConfig(config) {
      var dataAttributes = $__default['default'](this.element).data();
      Object.keys(dataAttributes).forEach(function (dataAttr) {
        if (DISALLOWED_ATTRIBUTES.indexOf(dataAttr) !== -1) {
          delete dataAttributes[dataAttr];
        }
      });
      config = _extends({}, this.constructor.Default, dataAttributes, typeof config === 'object' && config ? config : {});

      if (typeof config.delay === 'number') {
        config.delay = {
          show: config.delay,
          hide: config.delay
        };
      }

      if (typeof config.title === 'number') {
        config.title = config.title.toString();
      }

      if (typeof config.content === 'number') {
        config.content = config.content.toString();
      }

      Util.typeCheckConfig(NAME$6, config, this.constructor.DefaultType);

      if (config.sanitize) {
        config.template = sanitizeHtml(config.template, config.whiteList, config.sanitizeFn);
      }

      return config;
    };

    _proto._getDelegateConfig = function _getDelegateConfig() {
      var config = {};

      if (this.config) {
        for (var key in this.config) {
          if (this.constructor.Default[key] !== this.config[key]) {
            config[key] = this.config[key];
          }
        }
      }

      return config;
    };

    _proto._cleanTipClass = function _cleanTipClass() {
      var $tip = $__default['default'](this.getTipElement());
      var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX);

      if (tabClass !== null && tabClass.length) {
        $tip.removeClass(tabClass.join(''));
      }
    };

    _proto._handlePopperPlacementChange = function _handlePopperPlacementChange(popperData) {
      this.tip = popperData.instance.popper;

      this._cleanTipClass();

      this.addAttachmentClass(this._getAttachment(popperData.placement));
    };

    _proto._fixTransition = function _fixTransition() {
      var tip = this.getTipElement();
      var initConfigAnimation = this.config.animation;

      if (tip.getAttribute('x-placement') !== null) {
        return;
      }

      $__default['default'](tip).removeClass(CLASS_NAME_FADE$2);
      this.config.animation = false;
      this.hide();
      this.show();
      this.config.animation = initConfigAnimation;
    } // Static
    ;

    Tooltip._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var $element = $__default['default'](this);
        var data = $element.data(DATA_KEY$6);

        var _config = typeof config === 'object' && config;

        if (!data && /dispose|hide/.test(config)) {
          return;
        }

        if (!data) {
          data = new Tooltip(this, _config);
          $element.data(DATA_KEY$6, data);
        }

        if (typeof config === 'string') {
          if (typeof data[config] === 'undefined') {
            throw new TypeError("No method named \"" + config + "\"");
          }

          data[config]();
        }
      });
    };

    _createClass(Tooltip, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION$6;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default$4;
      }
    }, {
      key: "NAME",
      get: function get() {
        return NAME$6;
      }
    }, {
      key: "DATA_KEY",
      get: function get() {
        return DATA_KEY$6;
      }
    }, {
      key: "Event",
      get: function get() {
        return Event;
      }
    }, {
      key: "EVENT_KEY",
      get: function get() {
        return EVENT_KEY$6;
      }
    }, {
      key: "DefaultType",
      get: function get() {
        return DefaultType$4;
      }
    }]);

    return Tooltip;
  }();
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */


  $__default['default'].fn[NAME$6] = Tooltip._jQueryInterface;
  $__default['default'].fn[NAME$6].Constructor = Tooltip;

  $__default['default'].fn[NAME$6].noConflict = function () {
    $__default['default'].fn[NAME$6] = JQUERY_NO_CONFLICT$6;
    return Tooltip._jQueryInterface;
  };

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$7 = 'popover';
  var VERSION$7 = '4.6.0';
  var DATA_KEY$7 = 'bs.popover';
  var EVENT_KEY$7 = "." + DATA_KEY$7;
  var JQUERY_NO_CONFLICT$7 = $__default['default'].fn[NAME$7];
  var CLASS_PREFIX$1 = 'bs-popover';
  var BSCLS_PREFIX_REGEX$1 = new RegExp("(^|\\s)" + CLASS_PREFIX$1 + "\\S+", 'g');

  var Default$5 = _extends({}, Tooltip.Default, {
    placement: 'right',
    trigger: 'click',
    content: '',
    template: '<div class="popover" role="tooltip">' + '<div class="arrow"></div>' + '<h3 class="popover-header"></h3>' + '<div class="popover-body"></div></div>'
  });

  var DefaultType$5 = _extends({}, Tooltip.DefaultType, {
    content: '(string|element|function)'
  });

  var CLASS_NAME_FADE$3 = 'fade';
  var CLASS_NAME_SHOW$5 = 'show';
  var SELECTOR_TITLE = '.popover-header';
  var SELECTOR_CONTENT = '.popover-body';
  var Event$1 = {
    HIDE: "hide" + EVENT_KEY$7,
    HIDDEN: "hidden" + EVENT_KEY$7,
    SHOW: "show" + EVENT_KEY$7,
    SHOWN: "shown" + EVENT_KEY$7,
    INSERTED: "inserted" + EVENT_KEY$7,
    CLICK: "click" + EVENT_KEY$7,
    FOCUSIN: "focusin" + EVENT_KEY$7,
    FOCUSOUT: "focusout" + EVENT_KEY$7,
    MOUSEENTER: "mouseenter" + EVENT_KEY$7,
    MOUSELEAVE: "mouseleave" + EVENT_KEY$7
  };
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Popover = /*#__PURE__*/function (_Tooltip) {
    _inheritsLoose(Popover, _Tooltip);

    function Popover() {
      return _Tooltip.apply(this, arguments) || this;
    }

    var _proto = Popover.prototype;

    // Overrides
    _proto.isWithContent = function isWithContent() {
      return this.getTitle() || this._getContent();
    };

    _proto.addAttachmentClass = function addAttachmentClass(attachment) {
      $__default['default'](this.getTipElement()).addClass(CLASS_PREFIX$1 + "-" + attachment);
    };

    _proto.getTipElement = function getTipElement() {
      this.tip = this.tip || $__default['default'](this.config.template)[0];
      return this.tip;
    };

    _proto.setContent = function setContent() {
      var $tip = $__default['default'](this.getTipElement()); // We use append for html objects to maintain js events

      this.setElementContent($tip.find(SELECTOR_TITLE), this.getTitle());

      var content = this._getContent();

      if (typeof content === 'function') {
        content = content.call(this.element);
      }

      this.setElementContent($tip.find(SELECTOR_CONTENT), content);
      $tip.removeClass(CLASS_NAME_FADE$3 + " " + CLASS_NAME_SHOW$5);
    } // Private
    ;

    _proto._getContent = function _getContent() {
      return this.element.getAttribute('data-content') || this.config.content;
    };

    _proto._cleanTipClass = function _cleanTipClass() {
      var $tip = $__default['default'](this.getTipElement());
      var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX$1);

      if (tabClass !== null && tabClass.length > 0) {
        $tip.removeClass(tabClass.join(''));
      }
    } // Static
    ;

    Popover._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var data = $__default['default'](this).data(DATA_KEY$7);

        var _config = typeof config === 'object' ? config : null;

        if (!data && /dispose|hide/.test(config)) {
          return;
        }

        if (!data) {
          data = new Popover(this, _config);
          $__default['default'](this).data(DATA_KEY$7, data);
        }

        if (typeof config === 'string') {
          if (typeof data[config] === 'undefined') {
            throw new TypeError("No method named \"" + config + "\"");
          }

          data[config]();
        }
      });
    };

    _createClass(Popover, null, [{
      key: "VERSION",
      // Getters
      get: function get() {
        return VERSION$7;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default$5;
      }
    }, {
      key: "NAME",
      get: function get() {
        return NAME$7;
      }
    }, {
      key: "DATA_KEY",
      get: function get() {
        return DATA_KEY$7;
      }
    }, {
      key: "Event",
      get: function get() {
        return Event$1;
      }
    }, {
      key: "EVENT_KEY",
      get: function get() {
        return EVENT_KEY$7;
      }
    }, {
      key: "DefaultType",
      get: function get() {
        return DefaultType$5;
      }
    }]);

    return Popover;
  }(Tooltip);
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */


  $__default['default'].fn[NAME$7] = Popover._jQueryInterface;
  $__default['default'].fn[NAME$7].Constructor = Popover;

  $__default['default'].fn[NAME$7].noConflict = function () {
    $__default['default'].fn[NAME$7] = JQUERY_NO_CONFLICT$7;
    return Popover._jQueryInterface;
  };

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$8 = 'scrollspy';
  var VERSION$8 = '4.6.0';
  var DATA_KEY$8 = 'bs.scrollspy';
  var EVENT_KEY$8 = "." + DATA_KEY$8;
  var DATA_API_KEY$6 = '.data-api';
  var JQUERY_NO_CONFLICT$8 = $__default['default'].fn[NAME$8];
  var Default$6 = {
    offset: 10,
    method: 'auto',
    target: ''
  };
  var DefaultType$6 = {
    offset: 'number',
    method: 'string',
    target: '(string|element)'
  };
  var EVENT_ACTIVATE = "activate" + EVENT_KEY$8;
  var EVENT_SCROLL = "scroll" + EVENT_KEY$8;
  var EVENT_LOAD_DATA_API$2 = "load" + EVENT_KEY$8 + DATA_API_KEY$6;
  var CLASS_NAME_DROPDOWN_ITEM = 'dropdown-item';
  var CLASS_NAME_ACTIVE$2 = 'active';
  var SELECTOR_DATA_SPY = '[data-spy="scroll"]';
  var SELECTOR_NAV_LIST_GROUP = '.nav, .list-group';
  var SELECTOR_NAV_LINKS = '.nav-link';
  var SELECTOR_NAV_ITEMS = '.nav-item';
  var SELECTOR_LIST_ITEMS = '.list-group-item';
  var SELECTOR_DROPDOWN = '.dropdown';
  var SELECTOR_DROPDOWN_ITEMS = '.dropdown-item';
  var SELECTOR_DROPDOWN_TOGGLE = '.dropdown-toggle';
  var METHOD_OFFSET = 'offset';
  var METHOD_POSITION = 'position';
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var ScrollSpy = /*#__PURE__*/function () {
    function ScrollSpy(element, config) {
      var _this = this;

      this._element = element;
      this._scrollElement = element.tagName === 'BODY' ? window : element;
      this._config = this._getConfig(config);
      this._selector = this._config.target + " " + SELECTOR_NAV_LINKS + "," + (this._config.target + " " + SELECTOR_LIST_ITEMS + ",") + (this._config.target + " " + SELECTOR_DROPDOWN_ITEMS);
      this._offsets = [];
      this._targets = [];
      this._activeTarget = null;
      this._scrollHeight = 0;
      $__default['default'](this._scrollElement).on(EVENT_SCROLL, function (event) {
        return _this._process(event);
      });
      this.refresh();

      this._process();
    } // Getters


    var _proto = ScrollSpy.prototype;

    // Public
    _proto.refresh = function refresh() {
      var _this2 = this;

      var autoMethod = this._scrollElement === this._scrollElement.window ? METHOD_OFFSET : METHOD_POSITION;
      var offsetMethod = this._config.method === 'auto' ? autoMethod : this._config.method;
      var offsetBase = offsetMethod === METHOD_POSITION ? this._getScrollTop() : 0;
      this._offsets = [];
      this._targets = [];
      this._scrollHeight = this._getScrollHeight();
      var targets = [].slice.call(document.querySelectorAll(this._selector));
      targets.map(function (element) {
        var target;
        var targetSelector = Util.getSelectorFromElement(element);

        if (targetSelector) {
          target = document.querySelector(targetSelector);
        }

        if (target) {
          var targetBCR = target.getBoundingClientRect();

          if (targetBCR.width || targetBCR.height) {
            // TODO (fat): remove sketch reliance on jQuery position/offset
            return [$__default['default'](target)[offsetMethod]().top + offsetBase, targetSelector];
          }
        }

        return null;
      }).filter(function (item) {
        return item;
      }).sort(function (a, b) {
        return a[0] - b[0];
      }).forEach(function (item) {
        _this2._offsets.push(item[0]);

        _this2._targets.push(item[1]);
      });
    };

    _proto.dispose = function dispose() {
      $__default['default'].removeData(this._element, DATA_KEY$8);
      $__default['default'](this._scrollElement).off(EVENT_KEY$8);
      this._element = null;
      this._scrollElement = null;
      this._config = null;
      this._selector = null;
      this._offsets = null;
      this._targets = null;
      this._activeTarget = null;
      this._scrollHeight = null;
    } // Private
    ;

    _proto._getConfig = function _getConfig(config) {
      config = _extends({}, Default$6, typeof config === 'object' && config ? config : {});

      if (typeof config.target !== 'string' && Util.isElement(config.target)) {
        var id = $__default['default'](config.target).attr('id');

        if (!id) {
          id = Util.getUID(NAME$8);
          $__default['default'](config.target).attr('id', id);
        }

        config.target = "#" + id;
      }

      Util.typeCheckConfig(NAME$8, config, DefaultType$6);
      return config;
    };

    _proto._getScrollTop = function _getScrollTop() {
      return this._scrollElement === window ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop;
    };

    _proto._getScrollHeight = function _getScrollHeight() {
      return this._scrollElement.scrollHeight || Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
    };

    _proto._getOffsetHeight = function _getOffsetHeight() {
      return this._scrollElement === window ? window.innerHeight : this._scrollElement.getBoundingClientRect().height;
    };

    _proto._process = function _process() {
      var scrollTop = this._getScrollTop() + this._config.offset;

      var scrollHeight = this._getScrollHeight();

      var maxScroll = this._config.offset + scrollHeight - this._getOffsetHeight();

      if (this._scrollHeight !== scrollHeight) {
        this.refresh();
      }

      if (scrollTop >= maxScroll) {
        var target = this._targets[this._targets.length - 1];

        if (this._activeTarget !== target) {
          this._activate(target);
        }

        return;
      }

      if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
        this._activeTarget = null;

        this._clear();

        return;
      }

      for (var i = this._offsets.length; i--;) {
        var isActiveTarget = this._activeTarget !== this._targets[i] && scrollTop >= this._offsets[i] && (typeof this._offsets[i + 1] === 'undefined' || scrollTop < this._offsets[i + 1]);

        if (isActiveTarget) {
          this._activate(this._targets[i]);
        }
      }
    };

    _proto._activate = function _activate(target) {
      this._activeTarget = target;

      this._clear();

      var queries = this._selector.split(',').map(function (selector) {
        return selector + "[data-target=\"" + target + "\"]," + selector + "[href=\"" + target + "\"]";
      });

      var $link = $__default['default']([].slice.call(document.querySelectorAll(queries.join(','))));

      if ($link.hasClass(CLASS_NAME_DROPDOWN_ITEM)) {
        $link.closest(SELECTOR_DROPDOWN).find(SELECTOR_DROPDOWN_TOGGLE).addClass(CLASS_NAME_ACTIVE$2);
        $link.addClass(CLASS_NAME_ACTIVE$2);
      } else {
        // Set triggered link as active
        $link.addClass(CLASS_NAME_ACTIVE$2); // Set triggered links parents as active
        // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor

        $link.parents(SELECTOR_NAV_LIST_GROUP).prev(SELECTOR_NAV_LINKS + ", " + SELECTOR_LIST_ITEMS).addClass(CLASS_NAME_ACTIVE$2); // Handle special case when .nav-link is inside .nav-item

        $link.parents(SELECTOR_NAV_LIST_GROUP).prev(SELECTOR_NAV_ITEMS).children(SELECTOR_NAV_LINKS).addClass(CLASS_NAME_ACTIVE$2);
      }

      $__default['default'](this._scrollElement).trigger(EVENT_ACTIVATE, {
        relatedTarget: target
      });
    };

    _proto._clear = function _clear() {
      [].slice.call(document.querySelectorAll(this._selector)).filter(function (node) {
        return node.classList.contains(CLASS_NAME_ACTIVE$2);
      }).forEach(function (node) {
        return node.classList.remove(CLASS_NAME_ACTIVE$2);
      });
    } // Static
    ;

    ScrollSpy._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var data = $__default['default'](this).data(DATA_KEY$8);

        var _config = typeof config === 'object' && config;

        if (!data) {
          data = new ScrollSpy(this, _config);
          $__default['default'](this).data(DATA_KEY$8, data);
        }

        if (typeof config === 'string') {
          if (typeof data[config] === 'undefined') {
            throw new TypeError("No method named \"" + config + "\"");
          }

          data[config]();
        }
      });
    };

    _createClass(ScrollSpy, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION$8;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default$6;
      }
    }]);

    return ScrollSpy;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $__default['default'](window).on(EVENT_LOAD_DATA_API$2, function () {
    var scrollSpys = [].slice.call(document.querySelectorAll(SELECTOR_DATA_SPY));
    var scrollSpysLength = scrollSpys.length;

    for (var i = scrollSpysLength; i--;) {
      var $spy = $__default['default'](scrollSpys[i]);

      ScrollSpy._jQueryInterface.call($spy, $spy.data());
    }
  });
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $__default['default'].fn[NAME$8] = ScrollSpy._jQueryInterface;
  $__default['default'].fn[NAME$8].Constructor = ScrollSpy;

  $__default['default'].fn[NAME$8].noConflict = function () {
    $__default['default'].fn[NAME$8] = JQUERY_NO_CONFLICT$8;
    return ScrollSpy._jQueryInterface;
  };

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$9 = 'tab';
  var VERSION$9 = '4.6.0';
  var DATA_KEY$9 = 'bs.tab';
  var EVENT_KEY$9 = "." + DATA_KEY$9;
  var DATA_API_KEY$7 = '.data-api';
  var JQUERY_NO_CONFLICT$9 = $__default['default'].fn[NAME$9];
  var EVENT_HIDE$3 = "hide" + EVENT_KEY$9;
  var EVENT_HIDDEN$3 = "hidden" + EVENT_KEY$9;
  var EVENT_SHOW$3 = "show" + EVENT_KEY$9;
  var EVENT_SHOWN$3 = "shown" + EVENT_KEY$9;
  var EVENT_CLICK_DATA_API$6 = "click" + EVENT_KEY$9 + DATA_API_KEY$7;
  var CLASS_NAME_DROPDOWN_MENU = 'dropdown-menu';
  var CLASS_NAME_ACTIVE$3 = 'active';
  var CLASS_NAME_DISABLED$1 = 'disabled';
  var CLASS_NAME_FADE$4 = 'fade';
  var CLASS_NAME_SHOW$6 = 'show';
  var SELECTOR_DROPDOWN$1 = '.dropdown';
  var SELECTOR_NAV_LIST_GROUP$1 = '.nav, .list-group';
  var SELECTOR_ACTIVE$2 = '.active';
  var SELECTOR_ACTIVE_UL = '> li > .active';
  var SELECTOR_DATA_TOGGLE$4 = '[data-toggle="tab"], [data-toggle="pill"], [data-toggle="list"]';
  var SELECTOR_DROPDOWN_TOGGLE$1 = '.dropdown-toggle';
  var SELECTOR_DROPDOWN_ACTIVE_CHILD = '> .dropdown-menu .active';
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Tab = /*#__PURE__*/function () {
    function Tab(element) {
      this._element = element;
    } // Getters


    var _proto = Tab.prototype;

    // Public
    _proto.show = function show() {
      var _this = this;

      if (this._element.parentNode && this._element.parentNode.nodeType === Node.ELEMENT_NODE && $__default['default'](this._element).hasClass(CLASS_NAME_ACTIVE$3) || $__default['default'](this._element).hasClass(CLASS_NAME_DISABLED$1)) {
        return;
      }

      var target;
      var previous;
      var listElement = $__default['default'](this._element).closest(SELECTOR_NAV_LIST_GROUP$1)[0];
      var selector = Util.getSelectorFromElement(this._element);

      if (listElement) {
        var itemSelector = listElement.nodeName === 'UL' || listElement.nodeName === 'OL' ? SELECTOR_ACTIVE_UL : SELECTOR_ACTIVE$2;
        previous = $__default['default'].makeArray($__default['default'](listElement).find(itemSelector));
        previous = previous[previous.length - 1];
      }

      var hideEvent = $__default['default'].Event(EVENT_HIDE$3, {
        relatedTarget: this._element
      });
      var showEvent = $__default['default'].Event(EVENT_SHOW$3, {
        relatedTarget: previous
      });

      if (previous) {
        $__default['default'](previous).trigger(hideEvent);
      }

      $__default['default'](this._element).trigger(showEvent);

      if (showEvent.isDefaultPrevented() || hideEvent.isDefaultPrevented()) {
        return;
      }

      if (selector) {
        target = document.querySelector(selector);
      }

      this._activate(this._element, listElement);

      var complete = function complete() {
        var hiddenEvent = $__default['default'].Event(EVENT_HIDDEN$3, {
          relatedTarget: _this._element
        });
        var shownEvent = $__default['default'].Event(EVENT_SHOWN$3, {
          relatedTarget: previous
        });
        $__default['default'](previous).trigger(hiddenEvent);
        $__default['default'](_this._element).trigger(shownEvent);
      };

      if (target) {
        this._activate(target, target.parentNode, complete);
      } else {
        complete();
      }
    };

    _proto.dispose = function dispose() {
      $__default['default'].removeData(this._element, DATA_KEY$9);
      this._element = null;
    } // Private
    ;

    _proto._activate = function _activate(element, container, callback) {
      var _this2 = this;

      var activeElements = container && (container.nodeName === 'UL' || container.nodeName === 'OL') ? $__default['default'](container).find(SELECTOR_ACTIVE_UL) : $__default['default'](container).children(SELECTOR_ACTIVE$2);
      var active = activeElements[0];
      var isTransitioning = callback && active && $__default['default'](active).hasClass(CLASS_NAME_FADE$4);

      var complete = function complete() {
        return _this2._transitionComplete(element, active, callback);
      };

      if (active && isTransitioning) {
        var transitionDuration = Util.getTransitionDurationFromElement(active);
        $__default['default'](active).removeClass(CLASS_NAME_SHOW$6).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
      } else {
        complete();
      }
    };

    _proto._transitionComplete = function _transitionComplete(element, active, callback) {
      if (active) {
        $__default['default'](active).removeClass(CLASS_NAME_ACTIVE$3);
        var dropdownChild = $__default['default'](active.parentNode).find(SELECTOR_DROPDOWN_ACTIVE_CHILD)[0];

        if (dropdownChild) {
          $__default['default'](dropdownChild).removeClass(CLASS_NAME_ACTIVE$3);
        }

        if (active.getAttribute('role') === 'tab') {
          active.setAttribute('aria-selected', false);
        }
      }

      $__default['default'](element).addClass(CLASS_NAME_ACTIVE$3);

      if (element.getAttribute('role') === 'tab') {
        element.setAttribute('aria-selected', true);
      }

      Util.reflow(element);

      if (element.classList.contains(CLASS_NAME_FADE$4)) {
        element.classList.add(CLASS_NAME_SHOW$6);
      }

      if (element.parentNode && $__default['default'](element.parentNode).hasClass(CLASS_NAME_DROPDOWN_MENU)) {
        var dropdownElement = $__default['default'](element).closest(SELECTOR_DROPDOWN$1)[0];

        if (dropdownElement) {
          var dropdownToggleList = [].slice.call(dropdownElement.querySelectorAll(SELECTOR_DROPDOWN_TOGGLE$1));
          $__default['default'](dropdownToggleList).addClass(CLASS_NAME_ACTIVE$3);
        }

        element.setAttribute('aria-expanded', true);
      }

      if (callback) {
        callback();
      }
    } // Static
    ;

    Tab._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var $this = $__default['default'](this);
        var data = $this.data(DATA_KEY$9);

        if (!data) {
          data = new Tab(this);
          $this.data(DATA_KEY$9, data);
        }

        if (typeof config === 'string') {
          if (typeof data[config] === 'undefined') {
            throw new TypeError("No method named \"" + config + "\"");
          }

          data[config]();
        }
      });
    };

    _createClass(Tab, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION$9;
      }
    }]);

    return Tab;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $__default['default'](document).on(EVENT_CLICK_DATA_API$6, SELECTOR_DATA_TOGGLE$4, function (event) {
    event.preventDefault();

    Tab._jQueryInterface.call($__default['default'](this), 'show');
  });
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $__default['default'].fn[NAME$9] = Tab._jQueryInterface;
  $__default['default'].fn[NAME$9].Constructor = Tab;

  $__default['default'].fn[NAME$9].noConflict = function () {
    $__default['default'].fn[NAME$9] = JQUERY_NO_CONFLICT$9;
    return Tab._jQueryInterface;
  };

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME$a = 'toast';
  var VERSION$a = '4.6.0';
  var DATA_KEY$a = 'bs.toast';
  var EVENT_KEY$a = "." + DATA_KEY$a;
  var JQUERY_NO_CONFLICT$a = $__default['default'].fn[NAME$a];
  var EVENT_CLICK_DISMISS$1 = "click.dismiss" + EVENT_KEY$a;
  var EVENT_HIDE$4 = "hide" + EVENT_KEY$a;
  var EVENT_HIDDEN$4 = "hidden" + EVENT_KEY$a;
  var EVENT_SHOW$4 = "show" + EVENT_KEY$a;
  var EVENT_SHOWN$4 = "shown" + EVENT_KEY$a;
  var CLASS_NAME_FADE$5 = 'fade';
  var CLASS_NAME_HIDE = 'hide';
  var CLASS_NAME_SHOW$7 = 'show';
  var CLASS_NAME_SHOWING = 'showing';
  var DefaultType$7 = {
    animation: 'boolean',
    autohide: 'boolean',
    delay: 'number'
  };
  var Default$7 = {
    animation: true,
    autohide: true,
    delay: 500
  };
  var SELECTOR_DATA_DISMISS$1 = '[data-dismiss="toast"]';
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Toast = /*#__PURE__*/function () {
    function Toast(element, config) {
      this._element = element;
      this._config = this._getConfig(config);
      this._timeout = null;

      this._setListeners();
    } // Getters


    var _proto = Toast.prototype;

    // Public
    _proto.show = function show() {
      var _this = this;

      var showEvent = $__default['default'].Event(EVENT_SHOW$4);
      $__default['default'](this._element).trigger(showEvent);

      if (showEvent.isDefaultPrevented()) {
        return;
      }

      this._clearTimeout();

      if (this._config.animation) {
        this._element.classList.add(CLASS_NAME_FADE$5);
      }

      var complete = function complete() {
        _this._element.classList.remove(CLASS_NAME_SHOWING);

        _this._element.classList.add(CLASS_NAME_SHOW$7);

        $__default['default'](_this._element).trigger(EVENT_SHOWN$4);

        if (_this._config.autohide) {
          _this._timeout = setTimeout(function () {
            _this.hide();
          }, _this._config.delay);
        }
      };

      this._element.classList.remove(CLASS_NAME_HIDE);

      Util.reflow(this._element);

      this._element.classList.add(CLASS_NAME_SHOWING);

      if (this._config.animation) {
        var transitionDuration = Util.getTransitionDurationFromElement(this._element);
        $__default['default'](this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
      } else {
        complete();
      }
    };

    _proto.hide = function hide() {
      if (!this._element.classList.contains(CLASS_NAME_SHOW$7)) {
        return;
      }

      var hideEvent = $__default['default'].Event(EVENT_HIDE$4);
      $__default['default'](this._element).trigger(hideEvent);

      if (hideEvent.isDefaultPrevented()) {
        return;
      }

      this._close();
    };

    _proto.dispose = function dispose() {
      this._clearTimeout();

      if (this._element.classList.contains(CLASS_NAME_SHOW$7)) {
        this._element.classList.remove(CLASS_NAME_SHOW$7);
      }

      $__default['default'](this._element).off(EVENT_CLICK_DISMISS$1);
      $__default['default'].removeData(this._element, DATA_KEY$a);
      this._element = null;
      this._config = null;
    } // Private
    ;

    _proto._getConfig = function _getConfig(config) {
      config = _extends({}, Default$7, $__default['default'](this._element).data(), typeof config === 'object' && config ? config : {});
      Util.typeCheckConfig(NAME$a, config, this.constructor.DefaultType);
      return config;
    };

    _proto._setListeners = function _setListeners() {
      var _this2 = this;

      $__default['default'](this._element).on(EVENT_CLICK_DISMISS$1, SELECTOR_DATA_DISMISS$1, function () {
        return _this2.hide();
      });
    };

    _proto._close = function _close() {
      var _this3 = this;

      var complete = function complete() {
        _this3._element.classList.add(CLASS_NAME_HIDE);

        $__default['default'](_this3._element).trigger(EVENT_HIDDEN$4);
      };

      this._element.classList.remove(CLASS_NAME_SHOW$7);

      if (this._config.animation) {
        var transitionDuration = Util.getTransitionDurationFromElement(this._element);
        $__default['default'](this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
      } else {
        complete();
      }
    };

    _proto._clearTimeout = function _clearTimeout() {
      clearTimeout(this._timeout);
      this._timeout = null;
    } // Static
    ;

    Toast._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var $element = $__default['default'](this);
        var data = $element.data(DATA_KEY$a);

        var _config = typeof config === 'object' && config;

        if (!data) {
          data = new Toast(this, _config);
          $element.data(DATA_KEY$a, data);
        }

        if (typeof config === 'string') {
          if (typeof data[config] === 'undefined') {
            throw new TypeError("No method named \"" + config + "\"");
          }

          data[config](this);
        }
      });
    };

    _createClass(Toast, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION$a;
      }
    }, {
      key: "DefaultType",
      get: function get() {
        return DefaultType$7;
      }
    }, {
      key: "Default",
      get: function get() {
        return Default$7;
      }
    }]);

    return Toast;
  }();
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */


  $__default['default'].fn[NAME$a] = Toast._jQueryInterface;
  $__default['default'].fn[NAME$a].Constructor = Toast;

  $__default['default'].fn[NAME$a].noConflict = function () {
    $__default['default'].fn[NAME$a] = JQUERY_NO_CONFLICT$a;
    return Toast._jQueryInterface;
  };

  exports.Alert = Alert;
  exports.Button = Button;
  exports.Carousel = Carousel;
  exports.Collapse = Collapse;
  exports.Dropdown = Dropdown;
  exports.Modal = Modal;
  exports.Popover = Popover;
  exports.Scrollspy = ScrollSpy;
  exports.Tab = Tab;
  exports.Toast = Toast;
  exports.Tooltip = Tooltip;
  exports.Util = Util;

  Object.defineProperty(exports, '__esModule', { value: true });

})));
//# sourceMappingURL=bootstrap.js.map


/***/ }),

/***/ "./node_modules/datatables.net-bs4/js/dataTables.bootstrap4.js":
/*!*********************************************************************!*\
  !*** ./node_modules/datatables.net-bs4/js/dataTables.bootstrap4.js ***!
  \*********************************************************************/
/***/ ((module, exports, __webpack_require__) => {

var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
 DataTables Bootstrap 4 integration
 ©2011-2017 SpryMedia Ltd - datatables.net/license
*/
(function(c){ true?!(__WEBPACK_AMD_DEFINE_ARRAY__ = [__webpack_require__(/*! jquery */ "./node_modules/jquery/dist/jquery.js"),__webpack_require__(/*! datatables.net */ "./node_modules/datatables.net/js/jquery.dataTables.js")], __WEBPACK_AMD_DEFINE_RESULT__ = (function(a){return c(a,window,document)}).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
		__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__)):0})(function(c,a,d,m){var f=c.fn.dataTable;c.extend(!0,f.defaults,{dom:"<'row'<'col-sm-12 col-md-6'l><'col-sm-12 col-md-6'f>><'row'<'col-sm-12'tr>><'row'<'col-sm-12 col-md-5'i><'col-sm-12 col-md-7'p>>",
    renderer:"bootstrap"});c.extend(f.ext.classes,{sWrapper:"dataTables_wrapper dt-bootstrap4",sFilterInput:"form-control form-control-sm",sLengthSelect:"custom-select custom-select-sm form-control form-control-sm",sProcessing:"dataTables_processing card",sPageButton:"paginate_button page-item"});f.ext.renderer.pageButton.bootstrap=function(a,h,r,s,j,n){var o=new f.Api(a),t=a.oClasses,k=a.oLanguage.oPaginate,u=a.oLanguage.oAria.paginate||{},e,g,p=0,q=function(d,f){var l,h,i,b,m=function(a){a.preventDefault();
    !c(a.currentTarget).hasClass("disabled")&&o.page()!=a.data.action&&o.page(a.data.action).draw("page")};l=0;for(h=f.length;l<h;l++)if(b=f[l],Array.isArray(b))q(d,b);else{g=e="";switch(b){case "ellipsis":e="&#x2026;";g="disabled";break;case "first":e=k.sFirst;g=b+(0<j?"":" disabled");break;case "previous":e=k.sPrevious;g=b+(0<j?"":" disabled");break;case "next":e=k.sNext;g=b+(j<n-1?"":" disabled");break;case "last":e=k.sLast;g=b+(j<n-1?"":" disabled");break;default:e=b+1,g=j===b?"active":""}e&&(i=c("<li>",
    {"class":t.sPageButton+" "+g,id:0===r&&"string"===typeof b?a.sTableId+"_"+b:null}).append(c("<a>",{href:"#","aria-controls":a.sTableId,"aria-label":u[b],"data-dt-idx":p,tabindex:a.iTabIndex,"class":"page-link"}).html(e)).appendTo(d),a.oApi._fnBindAction(i,{action:b},m),p++)}},i;try{i=c(h).find(d.activeElement).data("dt-idx")}catch(v){}q(c(h).empty().html('<ul class="pagination"/>').children("ul"),s);i!==m&&c(h).find("[data-dt-idx="+i+"]").trigger("focus")};return f});


/***/ }),

/***/ "./node_modules/datatables.net-buttons-bs4/js/buttons.bootstrap4.js":
/*!**************************************************************************!*\
  !*** ./node_modules/datatables.net-buttons-bs4/js/buttons.bootstrap4.js ***!
  \**************************************************************************/
/***/ ((module, exports, __webpack_require__) => {

var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*! Bootstrap integration for DataTables' Buttons
 * ©2016 SpryMedia Ltd - datatables.net/license
 */

(function( factory ){
	if ( true ) {
		// AMD
		!(__WEBPACK_AMD_DEFINE_ARRAY__ = [__webpack_require__(/*! jquery */ "./node_modules/jquery/dist/jquery.js"), __webpack_require__(/*! datatables.net-bs4 */ "./node_modules/datatables.net-buttons-bs4/node_modules/datatables.net-bs4/js/dataTables.bootstrap4.js"), __webpack_require__(/*! datatables.net-buttons */ "./node_modules/datatables.net-buttons/js/dataTables.buttons.js")], __WEBPACK_AMD_DEFINE_RESULT__ = (function ( $ ) {
			return factory( $, window, document );
		}).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
		__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
	}
	else {}
}(function( $, window, document, undefined ) {
'use strict';
var DataTable = $.fn.dataTable;

$.extend( true, DataTable.Buttons.defaults, {
	dom: {
		container: {
			className: 'dt-buttons btn-group flex-wrap'
		},
		button: {
			className: 'btn btn-secondary'
		},
		collection: {
			tag: 'div',
			className: 'dropdown-menu',
			button: {
				tag: 'a',
				className: 'dt-button dropdown-item',
				active: 'active',
				disabled: 'disabled'
			}
		}
	},
	buttonCreated: function ( config, button ) {
		return config.buttons ?
			$('<div class="btn-group"/>').append(button) :
			button;
	}
} );

DataTable.ext.buttons.collection.className += ' dropdown-toggle';
DataTable.ext.buttons.collection.rightAlignClassName = 'dropdown-menu-right';

return DataTable.Buttons;
}));


/***/ }),

/***/ "./node_modules/datatables.net-buttons-bs4/node_modules/datatables.net-bs4/js/dataTables.bootstrap4.js":
/*!*************************************************************************************************************!*\
  !*** ./node_modules/datatables.net-buttons-bs4/node_modules/datatables.net-bs4/js/dataTables.bootstrap4.js ***!
  \*************************************************************************************************************/
/***/ ((module, exports, __webpack_require__) => {

var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*! DataTables Bootstrap 4 integration
 * ©2011-2017 SpryMedia Ltd - datatables.net/license
 */

/**
 * DataTables integration for Bootstrap 4. This requires Bootstrap 4 and
 * DataTables 1.10 or newer.
 *
 * This file sets the defaults and adds options to DataTables to style its
 * controls using Bootstrap. See http://datatables.net/manual/styling/bootstrap
 * for further information.
 */
(function( factory ){
	if ( true ) {
		// AMD
		!(__WEBPACK_AMD_DEFINE_ARRAY__ = [__webpack_require__(/*! jquery */ "./node_modules/jquery/dist/jquery.js"), __webpack_require__(/*! datatables.net */ "./node_modules/datatables.net/js/jquery.dataTables.js")], __WEBPACK_AMD_DEFINE_RESULT__ = (function ( $ ) {
			return factory( $, window, document );
		}).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
		__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
	}
	else {}
}(function( $, window, document, undefined ) {
'use strict';
var DataTable = $.fn.dataTable;


/* Set the defaults for DataTables initialisation */
$.extend( true, DataTable.defaults, {
	dom:
		"<'row'<'col-sm-12 col-md-6'l><'col-sm-12 col-md-6'f>>" +
		"<'row'<'col-sm-12'tr>>" +
		"<'row'<'col-sm-12 col-md-5'i><'col-sm-12 col-md-7'p>>",
	renderer: 'bootstrap'
} );


/* Default class modification */
$.extend( DataTable.ext.classes, {
	sWrapper:      "dataTables_wrapper dt-bootstrap4",
	sFilterInput:  "form-control form-control-sm",
	sLengthSelect: "custom-select custom-select-sm form-control form-control-sm",
	sProcessing:   "dataTables_processing card",
	sPageButton:   "paginate_button page-item"
} );


/* Bootstrap paging button renderer */
DataTable.ext.renderer.pageButton.bootstrap = function ( settings, host, idx, buttons, page, pages ) {
	var api     = new DataTable.Api( settings );
	var classes = settings.oClasses;
	var lang    = settings.oLanguage.oPaginate;
	var aria = settings.oLanguage.oAria.paginate || {};
	var btnDisplay, btnClass, counter=0;

	var attach = function( container, buttons ) {
		var i, ien, node, button;
		var clickHandler = function ( e ) {
			e.preventDefault();
			if ( !$(e.currentTarget).hasClass('disabled') && api.page() != e.data.action ) {
				api.page( e.data.action ).draw( 'page' );
			}
		};

		for ( i=0, ien=buttons.length ; i<ien ; i++ ) {
			button = buttons[i];

			if ( Array.isArray( button ) ) {
				attach( container, button );
			}
			else {
				btnDisplay = '';
				btnClass = '';

				switch ( button ) {
					case 'ellipsis':
						btnDisplay = '&#x2026;';
						btnClass = 'disabled';
						break;

					case 'first':
						btnDisplay = lang.sFirst;
						btnClass = button + (page > 0 ?
							'' : ' disabled');
						break;

					case 'previous':
						btnDisplay = lang.sPrevious;
						btnClass = button + (page > 0 ?
							'' : ' disabled');
						break;

					case 'next':
						btnDisplay = lang.sNext;
						btnClass = button + (page < pages-1 ?
							'' : ' disabled');
						break;

					case 'last':
						btnDisplay = lang.sLast;
						btnClass = button + (page < pages-1 ?
							'' : ' disabled');
						break;

					default:
						btnDisplay = button + 1;
						btnClass = page === button ?
							'active' : '';
						break;
				}

				if ( btnDisplay ) {
					node = $('<li>', {
							'class': classes.sPageButton+' '+btnClass,
							'id': idx === 0 && typeof button === 'string' ?
								settings.sTableId +'_'+ button :
								null
						} )
						.append( $('<a>', {
								'href': '#',
								'aria-controls': settings.sTableId,
								'aria-label': aria[ button ],
								'data-dt-idx': counter,
								'tabindex': settings.iTabIndex,
								'class': 'page-link'
							} )
							.html( btnDisplay )
						)
						.appendTo( container );

					settings.oApi._fnBindAction(
						node, {action: button}, clickHandler
					);

					counter++;
				}
			}
		}
	};

	// IE9 throws an 'unknown error' if document.activeElement is used
	// inside an iframe or frame. 
	var activeEl;

	try {
		// Because this approach is destroying and recreating the paging
		// elements, focus is lost on the select button which is bad for
		// accessibility. So we want to restore focus once the draw has
		// completed
		activeEl = $(host).find(document.activeElement).data('dt-idx');
	}
	catch (e) {}

	attach(
		$(host).empty().html('<ul class="pagination"/>').children('ul'),
		buttons
	);

	if ( activeEl !== undefined ) {
		$(host).find( '[data-dt-idx='+activeEl+']' ).trigger('focus');
	}
};


return DataTable;
}));


/***/ }),

/***/ "./node_modules/datatables.net-buttons/js/dataTables.buttons.js":
/*!**********************************************************************!*\
  !*** ./node_modules/datatables.net-buttons/js/dataTables.buttons.js ***!
  \**********************************************************************/
/***/ ((module, exports, __webpack_require__) => {

var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*! Buttons for DataTables 1.7.1
 * ©2016-2021 SpryMedia Ltd - datatables.net/license
 */

(function( factory ){
	if ( true ) {
		// AMD
		!(__WEBPACK_AMD_DEFINE_ARRAY__ = [__webpack_require__(/*! jquery */ "./node_modules/jquery/dist/jquery.js"), __webpack_require__(/*! datatables.net */ "./node_modules/datatables.net/js/jquery.dataTables.js")], __WEBPACK_AMD_DEFINE_RESULT__ = (function ( $ ) {
			return factory( $, window, document );
		}).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
		__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
	}
	else {}
}(function( $, window, document, undefined ) {
'use strict';
var DataTable = $.fn.dataTable;


// Used for namespacing events added to the document by each instance, so they
// can be removed on destroy
var _instCounter = 0;

// Button namespacing counter for namespacing events on individual buttons
var _buttonCounter = 0;

var _dtButtons = DataTable.ext.buttons;

// Allow for jQuery slim
function _fadeIn(el, duration, fn) {
	if ($.fn.animate) {
		el
			.stop()
			.fadeIn( duration, fn );
	}
	else {
		el.css('display', 'block');

		if (fn) {
			fn.call(el);
		}
	}
}

function _fadeOut(el, duration, fn) {
	if ($.fn.animate) {
		el
			.stop()
			.fadeOut( duration, fn );
	}
	else {
		el.css('display', 'none');
		
		if (fn) {
			fn.call(el);
		}
	}
}

/**
 * [Buttons description]
 * @param {[type]}
 * @param {[type]}
 */
var Buttons = function( dt, config )
{
	// If not created with a `new` keyword then we return a wrapper function that
	// will take the settings object for a DT. This allows easy use of new instances
	// with the `layout` option - e.g. `topLeft: $.fn.dataTable.Buttons( ... )`.
	if ( !(this instanceof Buttons) ) {
		return function (settings) {
			return new Buttons( settings, dt ).container();
		};
	}

	// If there is no config set it to an empty object
	if ( typeof( config ) === 'undefined' ) {
		config = {};	
	}
	
	// Allow a boolean true for defaults
	if ( config === true ) {
		config = {};
	}

	// For easy configuration of buttons an array can be given
	if ( Array.isArray( config ) ) {
		config = { buttons: config };
	}

	this.c = $.extend( true, {}, Buttons.defaults, config );

	// Don't want a deep copy for the buttons
	if ( config.buttons ) {
		this.c.buttons = config.buttons;
	}

	this.s = {
		dt: new DataTable.Api( dt ),
		buttons: [],
		listenKeys: '',
		namespace: 'dtb'+(_instCounter++)
	};

	this.dom = {
		container: $('<'+this.c.dom.container.tag+'/>')
			.addClass( this.c.dom.container.className )
	};

	this._constructor();
};


$.extend( Buttons.prototype, {
	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	 * Public methods
	 */

	/**
	 * Get the action of a button
	 * @param  {int|string} Button index
	 * @return {function}
	 *//**
	 * Set the action of a button
	 * @param  {node} node Button element
	 * @param  {function} action Function to set
	 * @return {Buttons} Self for chaining
	 */
	action: function ( node, action )
	{
		var button = this._nodeToButton( node );

		if ( action === undefined ) {
			return button.conf.action;
		}

		button.conf.action = action;

		return this;
	},

	/**
	 * Add an active class to the button to make to look active or get current
	 * active state.
	 * @param  {node} node Button element
	 * @param  {boolean} [flag] Enable / disable flag
	 * @return {Buttons} Self for chaining or boolean for getter
	 */
	active: function ( node, flag ) {
		var button = this._nodeToButton( node );
		var klass = this.c.dom.button.active;
		var jqNode = $(button.node);

		if ( flag === undefined ) {
			return jqNode.hasClass( klass );
		}

		jqNode.toggleClass( klass, flag === undefined ? true : flag );

		return this;
	},

	/**
	 * Add a new button
	 * @param {object} config Button configuration object, base string name or function
	 * @param {int|string} [idx] Button index for where to insert the button
	 * @return {Buttons} Self for chaining
	 */
	add: function ( config, idx )
	{
		var buttons = this.s.buttons;

		if ( typeof idx === 'string' ) {
			var split = idx.split('-');
			var base = this.s;

			for ( var i=0, ien=split.length-1 ; i<ien ; i++ ) {
				base = base.buttons[ split[i]*1 ];
			}

			buttons = base.buttons;
			idx = split[ split.length-1 ]*1;
		}

		this._expandButton( buttons, config, base !== undefined, idx );
		this._draw();

		return this;
	},

	/**
	 * Get the container node for the buttons
	 * @return {jQuery} Buttons node
	 */
	container: function ()
	{
		return this.dom.container;
	},

	/**
	 * Disable a button
	 * @param  {node} node Button node
	 * @return {Buttons} Self for chaining
	 */
	disable: function ( node ) {
		var button = this._nodeToButton( node );

		$(button.node)
			.addClass( this.c.dom.button.disabled )
			.attr('disabled', true);

		return this;
	},

	/**
	 * Destroy the instance, cleaning up event handlers and removing DOM
	 * elements
	 * @return {Buttons} Self for chaining
	 */
	destroy: function ()
	{
		// Key event listener
		$('body').off( 'keyup.'+this.s.namespace );

		// Individual button destroy (so they can remove their own events if
		// needed). Take a copy as the array is modified by `remove`
		var buttons = this.s.buttons.slice();
		var i, ien;
		
		for ( i=0, ien=buttons.length ; i<ien ; i++ ) {
			this.remove( buttons[i].node );
		}

		// Container
		this.dom.container.remove();

		// Remove from the settings object collection
		var buttonInsts = this.s.dt.settings()[0];

		for ( i=0, ien=buttonInsts.length ; i<ien ; i++ ) {
			if ( buttonInsts.inst === this ) {
				buttonInsts.splice( i, 1 );
				break;
			}
		}

		return this;
	},

	/**
	 * Enable / disable a button
	 * @param  {node} node Button node
	 * @param  {boolean} [flag=true] Enable / disable flag
	 * @return {Buttons} Self for chaining
	 */
	enable: function ( node, flag )
	{
		if ( flag === false ) {
			return this.disable( node );
		}

		var button = this._nodeToButton( node );
		$(button.node)
			.removeClass( this.c.dom.button.disabled )
			.removeAttr('disabled');

		return this;
	},

	/**
	 * Get the instance name for the button set selector
	 * @return {string} Instance name
	 */
	name: function ()
	{
		return this.c.name;
	},

	/**
	 * Get a button's node of the buttons container if no button is given
	 * @param  {node} [node] Button node
	 * @return {jQuery} Button element, or container
	 */
	node: function ( node )
	{
		if ( ! node ) {
			return this.dom.container;
		}

		var button = this._nodeToButton( node );
		return $(button.node);
	},

	/**
	 * Set / get a processing class on the selected button
	 * @param {element} node Triggering button node
	 * @param  {boolean} flag true to add, false to remove, undefined to get
	 * @return {boolean|Buttons} Getter value or this if a setter.
	 */
	processing: function ( node, flag )
	{
		var dt = this.s.dt;
		var button = this._nodeToButton( node );

		if ( flag === undefined ) {
			return $(button.node).hasClass( 'processing' );
		}

		$(button.node).toggleClass( 'processing', flag );

		$(dt.table().node()).triggerHandler( 'buttons-processing.dt', [
			flag, dt.button( node ), dt, $(node), button.conf
		] );

		return this;
	},

	/**
	 * Remove a button.
	 * @param  {node} node Button node
	 * @return {Buttons} Self for chaining
	 */
	remove: function ( node )
	{
		var button = this._nodeToButton( node );
		var host = this._nodeToHost( node );
		var dt = this.s.dt;

		// Remove any child buttons first
		if ( button.buttons.length ) {
			for ( var i=button.buttons.length-1 ; i>=0 ; i-- ) {
				this.remove( button.buttons[i].node );
			}
		}

		// Allow the button to remove event handlers, etc
		if ( button.conf.destroy ) {
			button.conf.destroy.call( dt.button(node), dt, $(node), button.conf );
		}

		this._removeKey( button.conf );

		$(button.node).remove();

		var idx = $.inArray( button, host );
		host.splice( idx, 1 );

		return this;
	},

	/**
	 * Get the text for a button
	 * @param  {int|string} node Button index
	 * @return {string} Button text
	 *//**
	 * Set the text for a button
	 * @param  {int|string|function} node Button index
	 * @param  {string} label Text
	 * @return {Buttons} Self for chaining
	 */
	text: function ( node, label )
	{
		var button = this._nodeToButton( node );
		var buttonLiner = this.c.dom.collection.buttonLiner;
		var linerTag = button.inCollection && buttonLiner && buttonLiner.tag ?
			buttonLiner.tag :
			this.c.dom.buttonLiner.tag;
		var dt = this.s.dt;
		var jqNode = $(button.node);
		var text = function ( opt ) {
			return typeof opt === 'function' ?
				opt( dt, jqNode, button.conf ) :
				opt;
		};

		if ( label === undefined ) {
			return text( button.conf.text );
		}

		button.conf.text = label;

		if ( linerTag ) {
			jqNode.children( linerTag ).html( text(label) );
		}
		else {
			jqNode.html( text(label) );
		}

		return this;
	},


	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	 * Constructor
	 */

	/**
	 * Buttons constructor
	 * @private
	 */
	_constructor: function ()
	{
		var that = this;
		var dt = this.s.dt;
		var dtSettings = dt.settings()[0];
		var buttons =  this.c.buttons;

		if ( ! dtSettings._buttons ) {
			dtSettings._buttons = [];
		}

		dtSettings._buttons.push( {
			inst: this,
			name: this.c.name
		} );

		for ( var i=0, ien=buttons.length ; i<ien ; i++ ) {
			this.add( buttons[i] );
		}

		dt.on( 'destroy', function ( e, settings ) {
			if ( settings === dtSettings ) {
				that.destroy();
			}
		} );

		// Global key event binding to listen for button keys
		$('body').on( 'keyup.'+this.s.namespace, function ( e ) {
			if ( ! document.activeElement || document.activeElement === document.body ) {
				// SUse a string of characters for fast lookup of if we need to
				// handle this
				var character = String.fromCharCode(e.keyCode).toLowerCase();

				if ( that.s.listenKeys.toLowerCase().indexOf( character ) !== -1 ) {
					that._keypress( character, e );
				}
			}
		} );
	},


	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	 * Private methods
	 */

	/**
	 * Add a new button to the key press listener
	 * @param {object} conf Resolved button configuration object
	 * @private
	 */
	_addKey: function ( conf )
	{
		if ( conf.key ) {
			this.s.listenKeys += $.isPlainObject( conf.key ) ?
				conf.key.key :
				conf.key;
		}
	},

	/**
	 * Insert the buttons into the container. Call without parameters!
	 * @param  {node} [container] Recursive only - Insert point
	 * @param  {array} [buttons] Recursive only - Buttons array
	 * @private
	 */
	_draw: function ( container, buttons )
	{
		if ( ! container ) {
			container = this.dom.container;
			buttons = this.s.buttons;
		}

		container.children().detach();

		for ( var i=0, ien=buttons.length ; i<ien ; i++ ) {
			container.append( buttons[i].inserter );
			container.append( ' ' );

			if ( buttons[i].buttons && buttons[i].buttons.length ) {
				this._draw( buttons[i].collection, buttons[i].buttons );
			}
		}
	},

	/**
	 * Create buttons from an array of buttons
	 * @param  {array} attachTo Buttons array to attach to
	 * @param  {object} button Button definition
	 * @param  {boolean} inCollection true if the button is in a collection
	 * @private
	 */
	_expandButton: function ( attachTo, button, inCollection, attachPoint )
	{
		var dt = this.s.dt;
		var buttonCounter = 0;
		var buttons = ! Array.isArray( button ) ?
			[ button ] :
			button;

		for ( var i=0, ien=buttons.length ; i<ien ; i++ ) {
			var conf = this._resolveExtends( buttons[i] );

			if ( ! conf ) {
				continue;
			}

			// If the configuration is an array, then expand the buttons at this
			// point
			if ( Array.isArray( conf ) ) {
				this._expandButton( attachTo, conf, inCollection, attachPoint );
				continue;
			}

			var built = this._buildButton( conf, inCollection );
			if ( ! built ) {
				continue;
			}

			if ( attachPoint !== undefined && attachPoint !== null ) {
				attachTo.splice( attachPoint, 0, built );
				attachPoint++;
			}
			else {
				attachTo.push( built );
			}

			if ( built.conf.buttons ) {
				built.collection = $('<'+this.c.dom.collection.tag+'/>');

				built.conf._collection = built.collection;

				this._expandButton( built.buttons, built.conf.buttons, true, attachPoint );
			}

			// init call is made here, rather than buildButton as it needs to
			// be selectable, and for that it needs to be in the buttons array
			if ( conf.init ) {
				conf.init.call( dt.button( built.node ), dt, $(built.node), conf );
			}

			buttonCounter++;
		}
	},

	/**
	 * Create an individual button
	 * @param  {object} config            Resolved button configuration
	 * @param  {boolean} inCollection `true` if a collection button
	 * @return {jQuery} Created button node (jQuery)
	 * @private
	 */
	_buildButton: function ( config, inCollection )
	{
		var buttonDom = this.c.dom.button;
		var linerDom = this.c.dom.buttonLiner;
		var collectionDom = this.c.dom.collection;
		var dt = this.s.dt;
		var text = function ( opt ) {
			return typeof opt === 'function' ?
				opt( dt, button, config ) :
				opt;
		};

		if ( inCollection && collectionDom.button ) {
			buttonDom = collectionDom.button;
		}

		if ( inCollection && collectionDom.buttonLiner ) {
			linerDom = collectionDom.buttonLiner;
		}

		// Make sure that the button is available based on whatever requirements
		// it has. For example, PDF button require pdfmake
		if ( config.available && ! config.available( dt, config ) ) {
			return false;
		}

		var action = function ( e, dt, button, config ) {
			config.action.call( dt.button( button ), e, dt, button, config );

			$(dt.table().node()).triggerHandler( 'buttons-action.dt', [
				dt.button( button ), dt, button, config 
			] );
		};

		var tag = config.tag || buttonDom.tag;
		var clickBlurs = config.clickBlurs === undefined ? true : config.clickBlurs
		var button = $('<'+tag+'/>')
			.addClass( buttonDom.className )
			.attr( 'tabindex', this.s.dt.settings()[0].iTabIndex )
			.attr( 'aria-controls', this.s.dt.table().node().id )
			.on( 'click.dtb', function (e) {
				e.preventDefault();

				if ( ! button.hasClass( buttonDom.disabled ) && config.action ) {
					action( e, dt, button, config );
				}
				if( clickBlurs ) {
					button.trigger('blur');
				}
			} )
			.on( 'keyup.dtb', function (e) {
				if ( e.keyCode === 13 ) {
					if ( ! button.hasClass( buttonDom.disabled ) && config.action ) {
						action( e, dt, button, config );
					}
				}
			} );

		// Make `a` tags act like a link
		if ( tag.toLowerCase() === 'a' ) {
			button.attr( 'href', '#' );
		}

		// Button tags should have `type=button` so they don't have any default behaviour
		if ( tag.toLowerCase() === 'button' ) {
			button.attr( 'type', 'button' );
		}

		if ( linerDom.tag ) {
			var liner = $('<'+linerDom.tag+'/>')
				.html( text( config.text ) )
				.addClass( linerDom.className );

			if ( linerDom.tag.toLowerCase() === 'a' ) {
				liner.attr( 'href', '#' );
			}

			button.append( liner );
		}
		else {
			button.html( text( config.text ) );
		}

		if ( config.enabled === false ) {
			button.addClass( buttonDom.disabled );
		}

		if ( config.className ) {
			button.addClass( config.className );
		}

		if ( config.titleAttr ) {
			button.attr( 'title', text( config.titleAttr ) );
		}

		if ( config.attr ) {
			button.attr( config.attr );
		}

		if ( ! config.namespace ) {
			config.namespace = '.dt-button-'+(_buttonCounter++);
		}

		var buttonContainer = this.c.dom.buttonContainer;
		var inserter;
		if ( buttonContainer && buttonContainer.tag ) {
			inserter = $('<'+buttonContainer.tag+'/>')
				.addClass( buttonContainer.className )
				.append( button );
		}
		else {
			inserter = button;
		}

		this._addKey( config );

		// Style integration callback for DOM manipulation
		// Note that this is _not_ documented. It is currently
		// for style integration only
		if( this.c.buttonCreated ) {
			inserter = this.c.buttonCreated( config, inserter );
		}

		return {
			conf:         config,
			node:         button.get(0),
			inserter:     inserter,
			buttons:      [],
			inCollection: inCollection,
			collection:   null
		};
	},

	/**
	 * Get the button object from a node (recursive)
	 * @param  {node} node Button node
	 * @param  {array} [buttons] Button array, uses base if not defined
	 * @return {object} Button object
	 * @private
	 */
	_nodeToButton: function ( node, buttons )
	{
		if ( ! buttons ) {
			buttons = this.s.buttons;
		}

		for ( var i=0, ien=buttons.length ; i<ien ; i++ ) {
			if ( buttons[i].node === node ) {
				return buttons[i];
			}

			if ( buttons[i].buttons.length ) {
				var ret = this._nodeToButton( node, buttons[i].buttons );

				if ( ret ) {
					return ret;
				}
			}
		}
	},

	/**
	 * Get container array for a button from a button node (recursive)
	 * @param  {node} node Button node
	 * @param  {array} [buttons] Button array, uses base if not defined
	 * @return {array} Button's host array
	 * @private
	 */
	_nodeToHost: function ( node, buttons )
	{
		if ( ! buttons ) {
			buttons = this.s.buttons;
		}

		for ( var i=0, ien=buttons.length ; i<ien ; i++ ) {
			if ( buttons[i].node === node ) {
				return buttons;
			}

			if ( buttons[i].buttons.length ) {
				var ret = this._nodeToHost( node, buttons[i].buttons );

				if ( ret ) {
					return ret;
				}
			}
		}
	},

	/**
	 * Handle a key press - determine if any button's key configured matches
	 * what was typed and trigger the action if so.
	 * @param  {string} character The character pressed
	 * @param  {object} e Key event that triggered this call
	 * @private
	 */
	_keypress: function ( character, e )
	{
		// Check if this button press already activated on another instance of Buttons
		if ( e._buttonsHandled ) {
			return;
		}

		var run = function ( conf, node ) {
			if ( ! conf.key ) {
				return;
			}

			if ( conf.key === character ) {
				e._buttonsHandled = true;
				$(node).click();
			}
			else if ( $.isPlainObject( conf.key ) ) {
				if ( conf.key.key !== character ) {
					return;
				}

				if ( conf.key.shiftKey && ! e.shiftKey ) {
					return;
				}

				if ( conf.key.altKey && ! e.altKey ) {
					return;
				}

				if ( conf.key.ctrlKey && ! e.ctrlKey ) {
					return;
				}

				if ( conf.key.metaKey && ! e.metaKey ) {
					return;
				}

				// Made it this far - it is good
				e._buttonsHandled = true;
				$(node).click();
			}
		};

		var recurse = function ( a ) {
			for ( var i=0, ien=a.length ; i<ien ; i++ ) {
				run( a[i].conf, a[i].node );

				if ( a[i].buttons.length ) {
					recurse( a[i].buttons );
				}
			}
		};

		recurse( this.s.buttons );
	},

	/**
	 * Remove a key from the key listener for this instance (to be used when a
	 * button is removed)
	 * @param  {object} conf Button configuration
	 * @private
	 */
	_removeKey: function ( conf )
	{
		if ( conf.key ) {
			var character = $.isPlainObject( conf.key ) ?
				conf.key.key :
				conf.key;

			// Remove only one character, as multiple buttons could have the
			// same listening key
			var a = this.s.listenKeys.split('');
			var idx = $.inArray( character, a );
			a.splice( idx, 1 );
			this.s.listenKeys = a.join('');
		}
	},

	/**
	 * Resolve a button configuration
	 * @param  {string|function|object} conf Button config to resolve
	 * @return {object} Button configuration
	 * @private
	 */
	_resolveExtends: function ( conf )
	{
		var dt = this.s.dt;
		var i, ien;
		var toConfObject = function ( base ) {
			var loop = 0;

			// Loop until we have resolved to a button configuration, or an
			// array of button configurations (which will be iterated
			// separately)
			while ( ! $.isPlainObject(base) && ! Array.isArray(base) ) {
				if ( base === undefined ) {
					return;
				}

				if ( typeof base === 'function' ) {
					base = base( dt, conf );

					if ( ! base ) {
						return false;
					}
				}
				else if ( typeof base === 'string' ) {
					if ( ! _dtButtons[ base ] ) {
						throw 'Unknown button type: '+base;
					}

					base = _dtButtons[ base ];
				}

				loop++;
				if ( loop > 30 ) {
					// Protect against misconfiguration killing the browser
					throw 'Buttons: Too many iterations';
				}
			}

			return Array.isArray( base ) ?
				base :
				$.extend( {}, base );
		};

		conf = toConfObject( conf );

		while ( conf && conf.extend ) {
			// Use `toConfObject` in case the button definition being extended
			// is itself a string or a function
			if ( ! _dtButtons[ conf.extend ] ) {
				throw 'Cannot extend unknown button type: '+conf.extend;
			}

			var objArray = toConfObject( _dtButtons[ conf.extend ] );
			if ( Array.isArray( objArray ) ) {
				return objArray;
			}
			else if ( ! objArray ) {
				// This is a little brutal as it might be possible to have a
				// valid button without the extend, but if there is no extend
				// then the host button would be acting in an undefined state
				return false;
			}

			// Stash the current class name
			var originalClassName = objArray.className;

			conf = $.extend( {}, objArray, conf );

			// The extend will have overwritten the original class name if the
			// `conf` object also assigned a class, but we want to concatenate
			// them so they are list that is combined from all extended buttons
			if ( originalClassName && conf.className !== originalClassName ) {
				conf.className = originalClassName+' '+conf.className;
			}

			// Buttons to be added to a collection  -gives the ability to define
			// if buttons should be added to the start or end of a collection
			var postfixButtons = conf.postfixButtons;
			if ( postfixButtons ) {
				if ( ! conf.buttons ) {
					conf.buttons = [];
				}

				for ( i=0, ien=postfixButtons.length ; i<ien ; i++ ) {
					conf.buttons.push( postfixButtons[i] );
				}

				conf.postfixButtons = null;
			}

			var prefixButtons = conf.prefixButtons;
			if ( prefixButtons ) {
				if ( ! conf.buttons ) {
					conf.buttons = [];
				}

				for ( i=0, ien=prefixButtons.length ; i<ien ; i++ ) {
					conf.buttons.splice( i, 0, prefixButtons[i] );
				}

				conf.prefixButtons = null;
			}

			// Although we want the `conf` object to overwrite almost all of
			// the properties of the object being extended, the `extend`
			// property should come from the object being extended
			conf.extend = objArray.extend;
		}

		return conf;
	},

	/**
	 * Display (and replace if there is an existing one) a popover attached to a button
	 * @param {string|node} content Content to show
	 * @param {DataTable.Api} hostButton DT API instance of the button
	 * @param {object} inOpts Options (see object below for all options)
	 */
	_popover: function ( content, hostButton, inOpts ) {
		var dt = hostButton;
		var buttonsSettings = this.c;
		var options = $.extend( {
			align: 'button-left', // button-right, dt-container
			autoClose: false,
			background: true,
			backgroundClassName: 'dt-button-background',
			contentClassName: buttonsSettings.dom.collection.className,
			collectionLayout: '',
			collectionTitle: '',
			dropup: false,
			fade: 400,
			rightAlignClassName: 'dt-button-right',
			tag: buttonsSettings.dom.collection.tag
		}, inOpts );
		var hostNode = hostButton.node();

		var close = function () {
			_fadeOut(
				$('.dt-button-collection'),
				options.fade,
				function () {
					$(this).detach();
				}
			);

			$(dt.buttons( '[aria-haspopup="true"][aria-expanded="true"]' ).nodes())
				.attr('aria-expanded', 'false');

			$('div.dt-button-background').off( 'click.dtb-collection' );
			Buttons.background( false, options.backgroundClassName, options.fade, hostNode );

			$('body').off( '.dtb-collection' );
			dt.off( 'buttons-action.b-internal' );
		};

		if (content === false) {
			close();
		}

		var existingExpanded = $(dt.buttons( '[aria-haspopup="true"][aria-expanded="true"]' ).nodes());
		if ( existingExpanded.length ) {
			hostNode = existingExpanded.eq(0);

			close();
		}

		var display = $('<div/>')
			.addClass('dt-button-collection')
			.addClass(options.collectionLayout)
			.css('display', 'none');

		content = $(content)
			.addClass(options.contentClassName)
			.attr('role', 'menu')
			.appendTo(display);

		hostNode.attr( 'aria-expanded', 'true' );

		if ( hostNode.parents('body')[0] !== document.body ) {
			hostNode = document.body.lastChild;
		}

		if ( options.collectionTitle ) {
			display.prepend('<div class="dt-button-collection-title">'+options.collectionTitle+'</div>');
		}

		_fadeIn( display.insertAfter( hostNode ), options.fade );

		var tableContainer = $( hostButton.table().container() );
		var position = display.css( 'position' );

		if ( options.align === 'dt-container' ) {
			hostNode = hostNode.parent();
			display.css('width', tableContainer.width());
		}

		// Align the popover relative to the DataTables container
		// Useful for wide popovers such as SearchPanes
		if (position === 'absolute') {
			// Align relative to the host button
			var hostPosition = hostNode.position();
			var buttonPosition = $(hostButton.node()).position();

			display.css( {
				top: buttonPosition.top + hostNode.outerHeight(),
				left: hostPosition.left
			} );

			// calculate overflow when positioned beneath
			var collectionHeight = display.outerHeight();
			var tableBottom = tableContainer.offset().top + tableContainer.height();
			var listBottom = buttonPosition.top + hostNode.outerHeight() + collectionHeight;
			var bottomOverflow = listBottom - tableBottom;

			// calculate overflow when positioned above
			var listTop = buttonPosition.top - collectionHeight;
			var tableTop = tableContainer.offset().top;
			var topOverflow = tableTop - listTop;

			// if bottom overflow is larger, move to the top because it fits better, or if dropup is requested
			var moveTop = buttonPosition.top - collectionHeight - 5;
			if ( (bottomOverflow > topOverflow || options.dropup) && -moveTop < tableTop ) {
				display.css( 'top', moveTop);
			}

			// Get the size of the container (left and width - and thus also right)
			var tableLeft = tableContainer.offset().left;
			var tableWidth = tableContainer.width();
			var tableRight = tableLeft + tableWidth;

			// Get the size of the popover (left and width - and ...)
			var popoverLeft = display.offset().left;
			var popoverWidth = display.width();
			var popoverRight = popoverLeft + popoverWidth;

			// Get the size of the host buttons (left and width - and ...)
			var buttonsLeft = hostNode.offset().left;
			var buttonsWidth = hostNode.outerWidth()
			var buttonsRight = buttonsLeft + buttonsWidth;

			if (
				display.hasClass( options.rightAlignClassName ) ||
				display.hasClass( options.leftAlignClassName ) ||
				options.align === 'dt-container'
			){
				// You've then got all the numbers you need to do some calculations and if statements,
				//  so we can do some quick JS maths and apply it only once
				// If it has the right align class OR the buttons are right aligned OR the button container is floated right,
				//  then calculate left position for the popover to align the popover to the right hand
				//  side of the button - check to see if the left of the popover is inside the table container.
				// If not, move the popover so it is, but not more than it means that the popover is to the right of the table container
				var popoverShuffle = 0;
				if ( display.hasClass( options.rightAlignClassName )) {
					popoverShuffle = buttonsRight - popoverRight;
					if(tableLeft > (popoverLeft + popoverShuffle)){
						var leftGap = tableLeft - (popoverLeft + popoverShuffle);
						var rightGap = tableRight - (popoverRight + popoverShuffle);
		
						if(leftGap > rightGap){
							popoverShuffle += rightGap; 
						}
						else {
							popoverShuffle += leftGap;
						}
					}
				}
				// else attempt to left align the popover to the button. Similar to above, if the popover's right goes past the table container's right,
				//  then move it back, but not so much that it goes past the left of the table container
				else {
					popoverShuffle = tableLeft - popoverLeft;
	
					if(tableRight < (popoverRight + popoverShuffle)){
						var leftGap = tableLeft - (popoverLeft + popoverShuffle);
						var rightGap = tableRight - (popoverRight + popoverShuffle);
	
						if(leftGap > rightGap ){
							popoverShuffle += rightGap;
						}
						else {
							popoverShuffle += leftGap;
						}
	
					}
				}
	
				display.css('left', display.position().left + popoverShuffle);
			}
			else {
				var top = hostNode.offset().top
				var popoverShuffle = 0;

				popoverShuffle = options.align === 'button-right'
					? buttonsRight - popoverRight
					: buttonsLeft - popoverLeft;

				display.css('left', display.position().left + popoverShuffle);
			}
			
			
		}
		else {
			// Fix position - centre on screen
			var top = display.height() / 2;
			if ( top > $(window).height() / 2 ) {
				top = $(window).height() / 2;
			}

			display.css( 'marginTop', top*-1 );
		}

		if ( options.background ) {
			Buttons.background( true, options.backgroundClassName, options.fade, hostNode );
		}

		// This is bonkers, but if we don't have a click listener on the
		// background element, iOS Safari will ignore the body click
		// listener below. An empty function here is all that is
		// required to make it work...
		$('div.dt-button-background').on( 'click.dtb-collection', function () {} );

		$('body')
			.on( 'click.dtb-collection', function (e) {
				// andSelf is deprecated in jQ1.8, but we want 1.7 compat
				var back = $.fn.addBack ? 'addBack' : 'andSelf';
				var parent = $(e.target).parent()[0];

				if (( ! $(e.target).parents()[back]().filter( content ).length  && !$(parent).hasClass('dt-buttons')) || $(e.target).hasClass('dt-button-background')) {
					close();
				}
			} )
			.on( 'keyup.dtb-collection', function (e) {
				if ( e.keyCode === 27 ) {
					close();
				}
			} );

		if ( options.autoClose ) {
			setTimeout( function () {
				dt.on( 'buttons-action.b-internal', function (e, btn, dt, node) {
					if ( node[0] === hostNode[0] ) {
						return;
					}
					close();
				} );
			}, 0);
		}

		$(display).trigger('buttons-popover.dt');
	}
} );



/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * Statics
 */

/**
 * Show / hide a background layer behind a collection
 * @param  {boolean} Flag to indicate if the background should be shown or
 *   hidden 
 * @param  {string} Class to assign to the background
 * @static
 */
Buttons.background = function ( show, className, fade, insertPoint ) {
	if ( fade === undefined ) {
		fade = 400;
	}
	if ( ! insertPoint ) {
		insertPoint = document.body;
	}

	if ( show ) {
		_fadeIn(
			$('<div/>')
				.addClass( className )
				.css( 'display', 'none' )
				.insertAfter( insertPoint ),
			fade
		);
	}
	else {
		_fadeOut(
			$('div.'+className),
			fade,
			function () {
				$(this)
					.removeClass( className )
					.remove();
			}
		);
	}
};

/**
 * Instance selector - select Buttons instances based on an instance selector
 * value from the buttons assigned to a DataTable. This is only useful if
 * multiple instances are attached to a DataTable.
 * @param  {string|int|array} Instance selector - see `instance-selector`
 *   documentation on the DataTables site
 * @param  {array} Button instance array that was attached to the DataTables
 *   settings object
 * @return {array} Buttons instances
 * @static
 */
Buttons.instanceSelector = function ( group, buttons )
{
	if ( group === undefined || group === null ) {
		return $.map( buttons, function ( v ) {
			return v.inst;
		} );
	}

	var ret = [];
	var names = $.map( buttons, function ( v ) {
		return v.name;
	} );

	// Flatten the group selector into an array of single options
	var process = function ( input ) {
		if ( Array.isArray( input ) ) {
			for ( var i=0, ien=input.length ; i<ien ; i++ ) {
				process( input[i] );
			}
			return;
		}

		if ( typeof input === 'string' ) {
			if ( input.indexOf( ',' ) !== -1 ) {
				// String selector, list of names
				process( input.split(',') );
			}
			else {
				// String selector individual name
				var idx = $.inArray( input.trim(), names );

				if ( idx !== -1 ) {
					ret.push( buttons[ idx ].inst );
				}
			}
		}
		else if ( typeof input === 'number' ) {
			// Index selector
			ret.push( buttons[ input ].inst );
		}
	};
	
	process( group );

	return ret;
};

/**
 * Button selector - select one or more buttons from a selector input so some
 * operation can be performed on them.
 * @param  {array} Button instances array that the selector should operate on
 * @param  {string|int|node|jQuery|array} Button selector - see
 *   `button-selector` documentation on the DataTables site
 * @return {array} Array of objects containing `inst` and `idx` properties of
 *   the selected buttons so you know which instance each button belongs to.
 * @static
 */
Buttons.buttonSelector = function ( insts, selector )
{
	var ret = [];
	var nodeBuilder = function ( a, buttons, baseIdx ) {
		var button;
		var idx;

		for ( var i=0, ien=buttons.length ; i<ien ; i++ ) {
			button = buttons[i];

			if ( button ) {
				idx = baseIdx !== undefined ?
					baseIdx+i :
					i+'';

				a.push( {
					node: button.node,
					name: button.conf.name,
					idx:  idx
				} );

				if ( button.buttons ) {
					nodeBuilder( a, button.buttons, idx+'-' );
				}
			}
		}
	};

	var run = function ( selector, inst ) {
		var i, ien;
		var buttons = [];
		nodeBuilder( buttons, inst.s.buttons );

		var nodes = $.map( buttons, function (v) {
			return v.node;
		} );

		if ( Array.isArray( selector ) || selector instanceof $ ) {
			for ( i=0, ien=selector.length ; i<ien ; i++ ) {
				run( selector[i], inst );
			}
			return;
		}

		if ( selector === null || selector === undefined || selector === '*' ) {
			// Select all
			for ( i=0, ien=buttons.length ; i<ien ; i++ ) {
				ret.push( {
					inst: inst,
					node: buttons[i].node
				} );
			}
		}
		else if ( typeof selector === 'number' ) {
			// Main button index selector
			ret.push( {
				inst: inst,
				node: inst.s.buttons[ selector ].node
			} );
		}
		else if ( typeof selector === 'string' ) {
			if ( selector.indexOf( ',' ) !== -1 ) {
				// Split
				var a = selector.split(',');

				for ( i=0, ien=a.length ; i<ien ; i++ ) {
					run( a[i].trim(), inst );
				}
			}
			else if ( selector.match( /^\d+(\-\d+)*$/ ) ) {
				// Sub-button index selector
				var indexes = $.map( buttons, function (v) {
					return v.idx;
				} );

				ret.push( {
					inst: inst,
					node: buttons[ $.inArray( selector, indexes ) ].node
				} );
			}
			else if ( selector.indexOf( ':name' ) !== -1 ) {
				// Button name selector
				var name = selector.replace( ':name', '' );

				for ( i=0, ien=buttons.length ; i<ien ; i++ ) {
					if ( buttons[i].name === name ) {
						ret.push( {
							inst: inst,
							node: buttons[i].node
						} );
					}
				}
			}
			else {
				// jQuery selector on the nodes
				$( nodes ).filter( selector ).each( function () {
					ret.push( {
						inst: inst,
						node: this
					} );
				} );
			}
		}
		else if ( typeof selector === 'object' && selector.nodeName ) {
			// Node selector
			var idx = $.inArray( selector, nodes );

			if ( idx !== -1 ) {
				ret.push( {
					inst: inst,
					node: nodes[ idx ]
				} );
			}
		}
	};


	for ( var i=0, ien=insts.length ; i<ien ; i++ ) {
		var inst = insts[i];

		run( selector, inst );
	}

	return ret;
};

/**
 * Default function used for formatting output data.
 * @param {*} str Data to strip
 */
Buttons.stripData = function ( str, config ) {
	if ( typeof str !== 'string' ) {
		return str;
	}

	// Always remove script tags
	str = str.replace( /<script\b[^<]*(?:(?!<\/script>)<[^<]*)*<\/script>/gi, '' );

	// Always remove comments
	str = str.replace( /<!\-\-.*?\-\->/g, '' );

	if ( ! config || config.stripHtml ) {
		str = str.replace( /<[^>]*>/g, '' );
	}

	if ( ! config || config.trim ) {
		str = str.replace( /^\s+|\s+$/g, '' );
	}

	if ( ! config || config.stripNewlines ) {
		str = str.replace( /\n/g, ' ' );
	}

	if ( ! config || config.decodeEntities ) {
		_exportTextarea.innerHTML = str;
		str = _exportTextarea.value;
	}

	return str;
};


/**
 * Buttons defaults. For full documentation, please refer to the docs/option
 * directory or the DataTables site.
 * @type {Object}
 * @static
 */
Buttons.defaults = {
	buttons: [ 'copy', 'excel', 'csv', 'pdf', 'print' ],
	name: 'main',
	tabIndex: 0,
	dom: {
		container: {
			tag: 'div',
			className: 'dt-buttons'
		},
		collection: {
			tag: 'div',
			className: ''
		},
		button: {
			tag: 'button',
			className: 'dt-button',
			active: 'active',
			disabled: 'disabled'
		},
		buttonLiner: {
			tag: 'span',
			className: ''
		}
	}
};

/**
 * Version information
 * @type {string}
 * @static
 */
Buttons.version = '1.7.1';


$.extend( _dtButtons, {
	collection: {
		text: function ( dt ) {
			return dt.i18n( 'buttons.collection', 'Collection' );
		},
		className: 'buttons-collection',
		init: function ( dt, button, config ) {
			button.attr( 'aria-expanded', false );
		},
		action: function ( e, dt, button, config ) {
			e.stopPropagation();

			if ( config._collection.parents('body').length ) {
				this.popover(false, config);
			}
			else {
				this.popover(config._collection, config);
			}
		},
		attr: {
			'aria-haspopup': true
		}
		// Also the popover options, defined in Buttons.popover
	},
	copy: function ( dt, conf ) {
		if ( _dtButtons.copyHtml5 ) {
			return 'copyHtml5';
		}
	},
	csv: function ( dt, conf ) {
		if ( _dtButtons.csvHtml5 && _dtButtons.csvHtml5.available( dt, conf ) ) {
			return 'csvHtml5';
		}
	},
	excel: function ( dt, conf ) {
		if ( _dtButtons.excelHtml5 && _dtButtons.excelHtml5.available( dt, conf ) ) {
			return 'excelHtml5';
		}
	},
	pdf: function ( dt, conf ) {
		if ( _dtButtons.pdfHtml5 && _dtButtons.pdfHtml5.available( dt, conf ) ) {
			return 'pdfHtml5';
		}
	},
	pageLength: function ( dt ) {
		var lengthMenu = dt.settings()[0].aLengthMenu;
		var vals = [];
		var lang = [];
		var text = function ( dt ) {
			return dt.i18n( 'buttons.pageLength', {
				"-1": 'Show all rows',
				_:    'Show %d rows'
			}, dt.page.len() );
		};

		// Support for DataTables 1.x 2D array
		if (Array.isArray( lengthMenu[0] )) {
			vals = lengthMenu[0];
			lang = lengthMenu[1];
		}
		else {
			for (var i=0 ; i<lengthMenu.length ; i++) {
				var option = lengthMenu[i];

				// Support for DataTables 2 object in the array
				if ($.isPlainObject(option)) {
					vals.push(option.value);
					lang.push(option.label);
				}
				else {
					vals.push(option);
					lang.push(option);
				}
			}
		}

		return {
			extend: 'collection',
			text: text,
			className: 'buttons-page-length',
			autoClose: true,
			buttons: $.map( vals, function ( val, i ) {
				return {
					text: lang[i],
					className: 'button-page-length',
					action: function ( e, dt ) {
						dt.page.len( val ).draw();
					},
					init: function ( dt, node, conf ) {
						var that = this;
						var fn = function () {
							that.active( dt.page.len() === val );
						};

						dt.on( 'length.dt'+conf.namespace, fn );
						fn();
					},
					destroy: function ( dt, node, conf ) {
						dt.off( 'length.dt'+conf.namespace );
					}
				};
			} ),
			init: function ( dt, node, conf ) {
				var that = this;
				dt.on( 'length.dt'+conf.namespace, function () {
					that.text( conf.text );
				} );
			},
			destroy: function ( dt, node, conf ) {
				dt.off( 'length.dt'+conf.namespace );
			}
		};
	}
} );


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * DataTables API
 *
 * For complete documentation, please refer to the docs/api directory or the
 * DataTables site
 */

// Buttons group and individual button selector
DataTable.Api.register( 'buttons()', function ( group, selector ) {
	// Argument shifting
	if ( selector === undefined ) {
		selector = group;
		group = undefined;
	}

	this.selector.buttonGroup = group;

	var res = this.iterator( true, 'table', function ( ctx ) {
		if ( ctx._buttons ) {
			return Buttons.buttonSelector(
				Buttons.instanceSelector( group, ctx._buttons ),
				selector
			);
		}
	}, true );

	res._groupSelector = group;
	return res;
} );

// Individual button selector
DataTable.Api.register( 'button()', function ( group, selector ) {
	// just run buttons() and truncate
	var buttons = this.buttons( group, selector );

	if ( buttons.length > 1 ) {
		buttons.splice( 1, buttons.length );
	}

	return buttons;
} );

// Active buttons
DataTable.Api.registerPlural( 'buttons().active()', 'button().active()', function ( flag ) {
	if ( flag === undefined ) {
		return this.map( function ( set ) {
			return set.inst.active( set.node );
		} );
	}

	return this.each( function ( set ) {
		set.inst.active( set.node, flag );
	} );
} );

// Get / set button action
DataTable.Api.registerPlural( 'buttons().action()', 'button().action()', function ( action ) {
	if ( action === undefined ) {
		return this.map( function ( set ) {
			return set.inst.action( set.node );
		} );
	}

	return this.each( function ( set ) {
		set.inst.action( set.node, action );
	} );
} );

// Enable / disable buttons
DataTable.Api.register( ['buttons().enable()', 'button().enable()'], function ( flag ) {
	return this.each( function ( set ) {
		set.inst.enable( set.node, flag );
	} );
} );

// Disable buttons
DataTable.Api.register( ['buttons().disable()', 'button().disable()'], function () {
	return this.each( function ( set ) {
		set.inst.disable( set.node );
	} );
} );

// Get button nodes
DataTable.Api.registerPlural( 'buttons().nodes()', 'button().node()', function () {
	var jq = $();

	// jQuery will automatically reduce duplicates to a single entry
	$( this.each( function ( set ) {
		jq = jq.add( set.inst.node( set.node ) );
	} ) );

	return jq;
} );

// Get / set button processing state
DataTable.Api.registerPlural( 'buttons().processing()', 'button().processing()', function ( flag ) {
	if ( flag === undefined ) {
		return this.map( function ( set ) {
			return set.inst.processing( set.node );
		} );
	}

	return this.each( function ( set ) {
		set.inst.processing( set.node, flag );
	} );
} );

// Get / set button text (i.e. the button labels)
DataTable.Api.registerPlural( 'buttons().text()', 'button().text()', function ( label ) {
	if ( label === undefined ) {
		return this.map( function ( set ) {
			return set.inst.text( set.node );
		} );
	}

	return this.each( function ( set ) {
		set.inst.text( set.node, label );
	} );
} );

// Trigger a button's action
DataTable.Api.registerPlural( 'buttons().trigger()', 'button().trigger()', function () {
	return this.each( function ( set ) {
		set.inst.node( set.node ).trigger( 'click' );
	} );
} );

// Button resolver to the popover
DataTable.Api.register( 'button().popover()', function (content, options) {
	return this.map( function ( set ) {
		return set.inst._popover( content, this.button(this[0].node), options );
	} );
} );

// Get the container elements
DataTable.Api.register( 'buttons().containers()', function () {
	var jq = $();
	var groupSelector = this._groupSelector;

	// We need to use the group selector directly, since if there are no buttons
	// the result set will be empty
	this.iterator( true, 'table', function ( ctx ) {
		if ( ctx._buttons ) {
			var insts = Buttons.instanceSelector( groupSelector, ctx._buttons );

			for ( var i=0, ien=insts.length ; i<ien ; i++ ) {
				jq = jq.add( insts[i].container() );
			}
		}
	} );

	return jq;
} );

DataTable.Api.register( 'buttons().container()', function () {
	// API level of nesting is `buttons()` so we can zip into the containers method
	return this.containers().eq(0);
} );

// Add a new button
DataTable.Api.register( 'button().add()', function ( idx, conf ) {
	var ctx = this.context;

	// Don't use `this` as it could be empty - select the instances directly
	if ( ctx.length ) {
		var inst = Buttons.instanceSelector( this._groupSelector, ctx[0]._buttons );

		if ( inst.length ) {
			inst[0].add( conf, idx );
		}
	}

	return this.button( this._groupSelector, idx );
} );

// Destroy the button sets selected
DataTable.Api.register( 'buttons().destroy()', function () {
	this.pluck( 'inst' ).unique().each( function ( inst ) {
		inst.destroy();
	} );

	return this;
} );

// Remove a button
DataTable.Api.registerPlural( 'buttons().remove()', 'buttons().remove()', function () {
	this.each( function ( set ) {
		set.inst.remove( set.node );
	} );

	return this;
} );

// Information box that can be used by buttons
var _infoTimer;
DataTable.Api.register( 'buttons.info()', function ( title, message, time ) {
	var that = this;

	if ( title === false ) {
		this.off('destroy.btn-info');
		_fadeOut(
			$('#datatables_buttons_info'),
			400,
			function () {
				$(this).remove();
			}
		);
		clearTimeout( _infoTimer );
		_infoTimer = null;

		return this;
	}

	if ( _infoTimer ) {
		clearTimeout( _infoTimer );
	}

	if ( $('#datatables_buttons_info').length ) {
		$('#datatables_buttons_info').remove();
	}

	title = title ? '<h2>'+title+'</h2>' : '';

	_fadeIn(
		$('<div id="datatables_buttons_info" class="dt-button-info"/>')
			.html( title )
			.append( $('<div/>')[ typeof message === 'string' ? 'html' : 'append' ]( message ) )
			.css( 'display', 'none' )
			.appendTo( 'body' )
	);

	if ( time !== undefined && time !== 0 ) {
		_infoTimer = setTimeout( function () {
			that.buttons.info( false );
		}, time );
	}

	this.on('destroy.btn-info', function () {
		that.buttons.info(false);
	});

	return this;
} );

// Get data from the table for export - this is common to a number of plug-in
// buttons so it is included in the Buttons core library
DataTable.Api.register( 'buttons.exportData()', function ( options ) {
	if ( this.context.length ) {
		return _exportData( new DataTable.Api( this.context[0] ), options );
	}
} );

// Get information about the export that is common to many of the export data
// types (DRY)
DataTable.Api.register( 'buttons.exportInfo()', function ( conf ) {
	if ( ! conf ) {
		conf = {};
	}

	return {
		filename: _filename( conf ),
		title: _title( conf ),
		messageTop: _message(this, conf.message || conf.messageTop, 'top'),
		messageBottom: _message(this, conf.messageBottom, 'bottom')
	};
} );



/**
 * Get the file name for an exported file.
 *
 * @param {object}	config Button configuration
 * @param {boolean} incExtension Include the file name extension
 */
var _filename = function ( config )
{
	// Backwards compatibility
	var filename = config.filename === '*' && config.title !== '*' && config.title !== undefined && config.title !== null && config.title !== '' ?
		config.title :
		config.filename;

	if ( typeof filename === 'function' ) {
		filename = filename();
	}

	if ( filename === undefined || filename === null ) {
		return null;
	}

	if ( filename.indexOf( '*' ) !== -1 ) {
		filename = filename.replace( '*', $('head > title').text() ).trim();
	}

	// Strip characters which the OS will object to
	filename = filename.replace(/[^a-zA-Z0-9_\u00A1-\uFFFF\.,\-_ !\(\)]/g, "");

	var extension = _stringOrFunction( config.extension );
	if ( ! extension ) {
		extension = '';
	}

	return filename + extension;
};

/**
 * Simply utility method to allow parameters to be given as a function
 *
 * @param {undefined|string|function} option Option
 * @return {null|string} Resolved value
 */
var _stringOrFunction = function ( option )
{
	if ( option === null || option === undefined ) {
		return null;
	}
	else if ( typeof option === 'function' ) {
		return option();
	}
	return option;
};

/**
 * Get the title for an exported file.
 *
 * @param {object} config	Button configuration
 */
var _title = function ( config )
{
	var title = _stringOrFunction( config.title );

	return title === null ?
		null : title.indexOf( '*' ) !== -1 ?
			title.replace( '*', $('head > title').text() || 'Exported data' ) :
			title;
};

var _message = function ( dt, option, position )
{
	var message = _stringOrFunction( option );
	if ( message === null ) {
		return null;
	}

	var caption = $('caption', dt.table().container()).eq(0);
	if ( message === '*' ) {
		var side = caption.css( 'caption-side' );
		if ( side !== position ) {
			return null;
		}

		return caption.length ?
			caption.text() :
			'';
	}

	return message;
};




var _exportTextarea = $('<textarea/>')[0];
var _exportData = function ( dt, inOpts )
{
	var config = $.extend( true, {}, {
		rows:           null,
		columns:        '',
		modifier:       {
			search: 'applied',
			order:  'applied'
		},
		orthogonal:     'display',
		stripHtml:      true,
		stripNewlines:  true,
		decodeEntities: true,
		trim:           true,
		format:         {
			header: function ( d ) {
				return Buttons.stripData( d, config );
			},
			footer: function ( d ) {
				return Buttons.stripData( d, config );
			},
			body: function ( d ) {
				return Buttons.stripData( d, config );
			}
		},
		customizeData: null
	}, inOpts );

	var header = dt.columns( config.columns ).indexes().map( function (idx) {
		var el = dt.column( idx ).header();
		return config.format.header( el.innerHTML, idx, el );
	} ).toArray();

	var footer = dt.table().footer() ?
		dt.columns( config.columns ).indexes().map( function (idx) {
			var el = dt.column( idx ).footer();
			return config.format.footer( el ? el.innerHTML : '', idx, el );
		} ).toArray() :
		null;
	
	// If Select is available on this table, and any rows are selected, limit the export
	// to the selected rows. If no rows are selected, all rows will be exported. Specify
	// a `selected` modifier to control directly.
	var modifier = $.extend( {}, config.modifier );
	if ( dt.select && typeof dt.select.info === 'function' && modifier.selected === undefined ) {
		if ( dt.rows( config.rows, $.extend( { selected: true }, modifier ) ).any() ) {
			$.extend( modifier, { selected: true } )
		}
	}

	var rowIndexes = dt.rows( config.rows, modifier ).indexes().toArray();
	var selectedCells = dt.cells( rowIndexes, config.columns );
	var cells = selectedCells
		.render( config.orthogonal )
		.toArray();
	var cellNodes = selectedCells
		.nodes()
		.toArray();

	var columns = header.length;
	var rows = columns > 0 ? cells.length / columns : 0;
	var body = [];
	var cellCounter = 0;

	for ( var i=0, ien=rows ; i<ien ; i++ ) {
		var row = [ columns ];

		for ( var j=0 ; j<columns ; j++ ) {
			row[j] = config.format.body( cells[ cellCounter ], i, j, cellNodes[ cellCounter ] );
			cellCounter++;
		}

		body[i] = row;
	}

	var data = {
		header: header,
		footer: footer,
		body:   body
	};

	if ( config.customizeData ) {
		config.customizeData( data );
	}

	return data;
};


/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
 * DataTables interface
 */

// Attach to DataTables objects for global access
$.fn.dataTable.Buttons = Buttons;
$.fn.DataTable.Buttons = Buttons;



// DataTables creation - check if the buttons have been defined for this table,
// they will have been if the `B` option was used in `dom`, otherwise we should
// create the buttons instance here so they can be inserted into the document
// using the API. Listen for `init` for compatibility with pre 1.10.10, but to
// be removed in future.
$(document).on( 'init.dt plugin-init.dt', function (e, settings) {
	if ( e.namespace !== 'dt' ) {
		return;
	}

	var opts = settings.oInit.buttons || DataTable.defaults.buttons;

	if ( opts && ! settings._buttons ) {
		new Buttons( settings, opts ).container();
	}
} );

function _init ( settings, options ) {
	var api = new DataTable.Api( settings );
	var opts = options
		? options
		: api.init().buttons || DataTable.defaults.buttons;

	return new Buttons( api, opts ).container();
}

// DataTables `dom` feature option
DataTable.ext.feature.push( {
	fnInit: _init,
	cFeature: "B"
} );

// DataTables 2 layout feature
if ( DataTable.ext.features ) {
	DataTable.ext.features.register( 'buttons', _init );
}


return Buttons;
}));


/***/ }),

/***/ "./node_modules/datatables.net/js/jquery.dataTables.js":
/*!*************************************************************!*\
  !*** ./node_modules/datatables.net/js/jquery.dataTables.js ***!
  \*************************************************************/
/***/ ((module, exports, __webpack_require__) => {

var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*! DataTables 1.10.25
 * ©2008-2021 SpryMedia Ltd - datatables.net/license
 */

/**
 * @summary     DataTables
 * @description Paginate, search and order HTML tables
 * @version     1.10.25
 * @file        jquery.dataTables.js
 * @author      SpryMedia Ltd
 * @contact     www.datatables.net
 * @copyright   Copyright 2008-2021 SpryMedia Ltd.
 *
 * This source file is free software, available under the following license:
 *   MIT license - http://datatables.net/license
 *
 * This source file is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the license files for details.
 *
 * For details please refer to: http://www.datatables.net
 */

/*jslint evil: true, undef: true, browser: true */
/*globals $,require,jQuery,define,_selector_run,_selector_opts,_selector_first,_selector_row_indexes,_ext,_Api,_api_register,_api_registerPlural,_re_new_lines,_re_html,_re_formatted_numeric,_re_escape_regex,_empty,_intVal,_numToDecimal,_isNumber,_isHtml,_htmlNumeric,_pluck,_pluck_order,_range,_stripHtml,_unique,_fnBuildAjax,_fnAjaxUpdate,_fnAjaxParameters,_fnAjaxUpdateDraw,_fnAjaxDataSrc,_fnAddColumn,_fnColumnOptions,_fnAdjustColumnSizing,_fnVisibleToColumnIndex,_fnColumnIndexToVisible,_fnVisbleColumns,_fnGetColumns,_fnColumnTypes,_fnApplyColumnDefs,_fnHungarianMap,_fnCamelToHungarian,_fnLanguageCompat,_fnBrowserDetect,_fnAddData,_fnAddTr,_fnNodeToDataIndex,_fnNodeToColumnIndex,_fnGetCellData,_fnSetCellData,_fnSplitObjNotation,_fnGetObjectDataFn,_fnSetObjectDataFn,_fnGetDataMaster,_fnClearTable,_fnDeleteIndex,_fnInvalidate,_fnGetRowElements,_fnCreateTr,_fnBuildHead,_fnDrawHead,_fnDraw,_fnReDraw,_fnAddOptionsHtml,_fnDetectHeader,_fnGetUniqueThs,_fnFeatureHtmlFilter,_fnFilterComplete,_fnFilterCustom,_fnFilterColumn,_fnFilter,_fnFilterCreateSearch,_fnEscapeRegex,_fnFilterData,_fnFeatureHtmlInfo,_fnUpdateInfo,_fnInfoMacros,_fnInitialise,_fnInitComplete,_fnLengthChange,_fnFeatureHtmlLength,_fnFeatureHtmlPaginate,_fnPageChange,_fnFeatureHtmlProcessing,_fnProcessingDisplay,_fnFeatureHtmlTable,_fnScrollDraw,_fnApplyToChildren,_fnCalculateColumnWidths,_fnThrottle,_fnConvertToWidth,_fnGetWidestNode,_fnGetMaxLenString,_fnStringToCss,_fnSortFlatten,_fnSort,_fnSortAria,_fnSortListener,_fnSortAttachListener,_fnSortingClasses,_fnSortData,_fnSaveState,_fnLoadState,_fnSettingsFromNode,_fnLog,_fnMap,_fnBindAction,_fnCallbackReg,_fnCallbackFire,_fnLengthOverflow,_fnRenderer,_fnDataSource,_fnRowAttributes*/

(function( factory ) {
	"use strict";

	if ( true ) {
		// AMD
		!(__WEBPACK_AMD_DEFINE_ARRAY__ = [__webpack_require__(/*! jquery */ "./node_modules/jquery/dist/jquery.js")], __WEBPACK_AMD_DEFINE_RESULT__ = (function ( $ ) {
			return factory( $, window, document );
		}).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
		__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
	}
	else {}
}
(function( $, window, document, undefined ) {
	"use strict";

	/**
	 * DataTables is a plug-in for the jQuery Javascript library. It is a highly
	 * flexible tool, based upon the foundations of progressive enhancement,
	 * which will add advanced interaction controls to any HTML table. For a
	 * full list of features please refer to
	 * [DataTables.net](href="http://datatables.net).
	 *
	 * Note that the `DataTable` object is not a global variable but is aliased
	 * to `jQuery.fn.DataTable` and `jQuery.fn.dataTable` through which it may
	 * be  accessed.
	 *
	 *  @class
	 *  @param {object} [init={}] Configuration object for DataTables. Options
	 *    are defined by {@link DataTable.defaults}
	 *  @requires jQuery 1.7+
	 *
	 *  @example
	 *    // Basic initialisation
	 *    $(document).ready( function {
	 *      $('#example').dataTable();
	 *    } );
	 *
	 *  @example
	 *    // Initialisation with configuration options - in this case, disable
	 *    // pagination and sorting.
	 *    $(document).ready( function {
	 *      $('#example').dataTable( {
	 *        "paginate": false,
	 *        "sort": false
	 *      } );
	 *    } );
	 */
	var DataTable = function ( options )
	{
		/**
		 * Perform a jQuery selector action on the table's TR elements (from the tbody) and
		 * return the resulting jQuery object.
		 *  @param {string|node|jQuery} sSelector jQuery selector or node collection to act on
		 *  @param {object} [oOpts] Optional parameters for modifying the rows to be included
		 *  @param {string} [oOpts.filter=none] Select TR elements that meet the current filter
		 *    criterion ("applied") or all TR elements (i.e. no filter).
		 *  @param {string} [oOpts.order=current] Order of the TR elements in the processed array.
		 *    Can be either 'current', whereby the current sorting of the table is used, or
		 *    'original' whereby the original order the data was read into the table is used.
		 *  @param {string} [oOpts.page=all] Limit the selection to the currently displayed page
		 *    ("current") or not ("all"). If 'current' is given, then order is assumed to be
		 *    'current' and filter is 'applied', regardless of what they might be given as.
		 *  @returns {object} jQuery object, filtered by the given selector.
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Highlight every second row
		 *      oTable.$('tr:odd').css('backgroundColor', 'blue');
		 *    } );
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Filter to rows with 'Webkit' in them, add a background colour and then
		 *      // remove the filter, thus highlighting the 'Webkit' rows only.
		 *      oTable.fnFilter('Webkit');
		 *      oTable.$('tr', {"search": "applied"}).css('backgroundColor', 'blue');
		 *      oTable.fnFilter('');
		 *    } );
		 */
		this.$ = function ( sSelector, oOpts )
		{
			return this.api(true).$( sSelector, oOpts );
		};
		
		
		/**
		 * Almost identical to $ in operation, but in this case returns the data for the matched
		 * rows - as such, the jQuery selector used should match TR row nodes or TD/TH cell nodes
		 * rather than any descendants, so the data can be obtained for the row/cell. If matching
		 * rows are found, the data returned is the original data array/object that was used to
		 * create the row (or a generated array if from a DOM source).
		 *
		 * This method is often useful in-combination with $ where both functions are given the
		 * same parameters and the array indexes will match identically.
		 *  @param {string|node|jQuery} sSelector jQuery selector or node collection to act on
		 *  @param {object} [oOpts] Optional parameters for modifying the rows to be included
		 *  @param {string} [oOpts.filter=none] Select elements that meet the current filter
		 *    criterion ("applied") or all elements (i.e. no filter).
		 *  @param {string} [oOpts.order=current] Order of the data in the processed array.
		 *    Can be either 'current', whereby the current sorting of the table is used, or
		 *    'original' whereby the original order the data was read into the table is used.
		 *  @param {string} [oOpts.page=all] Limit the selection to the currently displayed page
		 *    ("current") or not ("all"). If 'current' is given, then order is assumed to be
		 *    'current' and filter is 'applied', regardless of what they might be given as.
		 *  @returns {array} Data for the matched elements. If any elements, as a result of the
		 *    selector, were not TR, TD or TH elements in the DataTable, they will have a null
		 *    entry in the array.
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Get the data from the first row in the table
		 *      var data = oTable._('tr:first');
		 *
		 *      // Do something useful with the data
		 *      alert( "First cell is: "+data[0] );
		 *    } );
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Filter to 'Webkit' and get all data for
		 *      oTable.fnFilter('Webkit');
		 *      var data = oTable._('tr', {"search": "applied"});
		 *
		 *      // Do something with the data
		 *      alert( data.length+" rows matched the search" );
		 *    } );
		 */
		this._ = function ( sSelector, oOpts )
		{
			return this.api(true).rows( sSelector, oOpts ).data();
		};
		
		
		/**
		 * Create a DataTables Api instance, with the currently selected tables for
		 * the Api's context.
		 * @param {boolean} [traditional=false] Set the API instance's context to be
		 *   only the table referred to by the `DataTable.ext.iApiIndex` option, as was
		 *   used in the API presented by DataTables 1.9- (i.e. the traditional mode),
		 *   or if all tables captured in the jQuery object should be used.
		 * @return {DataTables.Api}
		 */
		this.api = function ( traditional )
		{
			return traditional ?
				new _Api(
					_fnSettingsFromNode( this[ _ext.iApiIndex ] )
				) :
				new _Api( this );
		};
		
		
		/**
		 * Add a single new row or multiple rows of data to the table. Please note
		 * that this is suitable for client-side processing only - if you are using
		 * server-side processing (i.e. "bServerSide": true), then to add data, you
		 * must add it to the data source, i.e. the server-side, through an Ajax call.
		 *  @param {array|object} data The data to be added to the table. This can be:
		 *    <ul>
		 *      <li>1D array of data - add a single row with the data provided</li>
		 *      <li>2D array of arrays - add multiple rows in a single call</li>
		 *      <li>object - data object when using <i>mData</i></li>
		 *      <li>array of objects - multiple data objects when using <i>mData</i></li>
		 *    </ul>
		 *  @param {bool} [redraw=true] redraw the table or not
		 *  @returns {array} An array of integers, representing the list of indexes in
		 *    <i>aoData</i> ({@link DataTable.models.oSettings}) that have been added to
		 *    the table.
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    // Global var for counter
		 *    var giCount = 2;
		 *
		 *    $(document).ready(function() {
		 *      $('#example').dataTable();
		 *    } );
		 *
		 *    function fnClickAddRow() {
		 *      $('#example').dataTable().fnAddData( [
		 *        giCount+".1",
		 *        giCount+".2",
		 *        giCount+".3",
		 *        giCount+".4" ]
		 *      );
		 *
		 *      giCount++;
		 *    }
		 */
		this.fnAddData = function( data, redraw )
		{
			var api = this.api( true );
		
			/* Check if we want to add multiple rows or not */
			var rows = Array.isArray(data) && ( Array.isArray(data[0]) || $.isPlainObject(data[0]) ) ?
				api.rows.add( data ) :
				api.row.add( data );
		
			if ( redraw === undefined || redraw ) {
				api.draw();
			}
		
			return rows.flatten().toArray();
		};
		
		
		/**
		 * This function will make DataTables recalculate the column sizes, based on the data
		 * contained in the table and the sizes applied to the columns (in the DOM, CSS or
		 * through the sWidth parameter). This can be useful when the width of the table's
		 * parent element changes (for example a window resize).
		 *  @param {boolean} [bRedraw=true] Redraw the table or not, you will typically want to
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable( {
		 *        "sScrollY": "200px",
		 *        "bPaginate": false
		 *      } );
		 *
		 *      $(window).on('resize', function () {
		 *        oTable.fnAdjustColumnSizing();
		 *      } );
		 *    } );
		 */
		this.fnAdjustColumnSizing = function ( bRedraw )
		{
			var api = this.api( true ).columns.adjust();
			var settings = api.settings()[0];
			var scroll = settings.oScroll;
		
			if ( bRedraw === undefined || bRedraw ) {
				api.draw( false );
			}
			else if ( scroll.sX !== "" || scroll.sY !== "" ) {
				/* If not redrawing, but scrolling, we want to apply the new column sizes anyway */
				_fnScrollDraw( settings );
			}
		};
		
		
		/**
		 * Quickly and simply clear a table
		 *  @param {bool} [bRedraw=true] redraw the table or not
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Immediately 'nuke' the current rows (perhaps waiting for an Ajax callback...)
		 *      oTable.fnClearTable();
		 *    } );
		 */
		this.fnClearTable = function( bRedraw )
		{
			var api = this.api( true ).clear();
		
			if ( bRedraw === undefined || bRedraw ) {
				api.draw();
			}
		};
		
		
		/**
		 * The exact opposite of 'opening' a row, this function will close any rows which
		 * are currently 'open'.
		 *  @param {node} nTr the table row to 'close'
		 *  @returns {int} 0 on success, or 1 if failed (can't find the row)
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable;
		 *
		 *      // 'open' an information row when a row is clicked on
		 *      $('#example tbody tr').click( function () {
		 *        if ( oTable.fnIsOpen(this) ) {
		 *          oTable.fnClose( this );
		 *        } else {
		 *          oTable.fnOpen( this, "Temporary row opened", "info_row" );
		 *        }
		 *      } );
		 *
		 *      oTable = $('#example').dataTable();
		 *    } );
		 */
		this.fnClose = function( nTr )
		{
			this.api( true ).row( nTr ).child.hide();
		};
		
		
		/**
		 * Remove a row for the table
		 *  @param {mixed} target The index of the row from aoData to be deleted, or
		 *    the TR element you want to delete
		 *  @param {function|null} [callBack] Callback function
		 *  @param {bool} [redraw=true] Redraw the table or not
		 *  @returns {array} The row that was deleted
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Immediately remove the first row
		 *      oTable.fnDeleteRow( 0 );
		 *    } );
		 */
		this.fnDeleteRow = function( target, callback, redraw )
		{
			var api = this.api( true );
			var rows = api.rows( target );
			var settings = rows.settings()[0];
			var data = settings.aoData[ rows[0][0] ];
		
			rows.remove();
		
			if ( callback ) {
				callback.call( this, settings, data );
			}
		
			if ( redraw === undefined || redraw ) {
				api.draw();
			}
		
			return data;
		};
		
		
		/**
		 * Restore the table to it's original state in the DOM by removing all of DataTables
		 * enhancements, alterations to the DOM structure of the table and event listeners.
		 *  @param {boolean} [remove=false] Completely remove the table from the DOM
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      // This example is fairly pointless in reality, but shows how fnDestroy can be used
		 *      var oTable = $('#example').dataTable();
		 *      oTable.fnDestroy();
		 *    } );
		 */
		this.fnDestroy = function ( remove )
		{
			this.api( true ).destroy( remove );
		};
		
		
		/**
		 * Redraw the table
		 *  @param {bool} [complete=true] Re-filter and resort (if enabled) the table before the draw.
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Re-draw the table - you wouldn't want to do it here, but it's an example :-)
		 *      oTable.fnDraw();
		 *    } );
		 */
		this.fnDraw = function( complete )
		{
			// Note that this isn't an exact match to the old call to _fnDraw - it takes
			// into account the new data, but can hold position.
			this.api( true ).draw( complete );
		};
		
		
		/**
		 * Filter the input based on data
		 *  @param {string} sInput String to filter the table on
		 *  @param {int|null} [iColumn] Column to limit filtering to
		 *  @param {bool} [bRegex=false] Treat as regular expression or not
		 *  @param {bool} [bSmart=true] Perform smart filtering or not
		 *  @param {bool} [bShowGlobal=true] Show the input global filter in it's input box(es)
		 *  @param {bool} [bCaseInsensitive=true] Do case-insensitive matching (true) or not (false)
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Sometime later - filter...
		 *      oTable.fnFilter( 'test string' );
		 *    } );
		 */
		this.fnFilter = function( sInput, iColumn, bRegex, bSmart, bShowGlobal, bCaseInsensitive )
		{
			var api = this.api( true );
		
			if ( iColumn === null || iColumn === undefined ) {
				api.search( sInput, bRegex, bSmart, bCaseInsensitive );
			}
			else {
				api.column( iColumn ).search( sInput, bRegex, bSmart, bCaseInsensitive );
			}
		
			api.draw();
		};
		
		
		/**
		 * Get the data for the whole table, an individual row or an individual cell based on the
		 * provided parameters.
		 *  @param {int|node} [src] A TR row node, TD/TH cell node or an integer. If given as
		 *    a TR node then the data source for the whole row will be returned. If given as a
		 *    TD/TH cell node then iCol will be automatically calculated and the data for the
		 *    cell returned. If given as an integer, then this is treated as the aoData internal
		 *    data index for the row (see fnGetPosition) and the data for that row used.
		 *  @param {int} [col] Optional column index that you want the data of.
		 *  @returns {array|object|string} If mRow is undefined, then the data for all rows is
		 *    returned. If mRow is defined, just data for that row, and is iCol is
		 *    defined, only data for the designated cell is returned.
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    // Row data
		 *    $(document).ready(function() {
		 *      oTable = $('#example').dataTable();
		 *
		 *      oTable.$('tr').click( function () {
		 *        var data = oTable.fnGetData( this );
		 *        // ... do something with the array / object of data for the row
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Individual cell data
		 *    $(document).ready(function() {
		 *      oTable = $('#example').dataTable();
		 *
		 *      oTable.$('td').click( function () {
		 *        var sData = oTable.fnGetData( this );
		 *        alert( 'The cell clicked on had the value of '+sData );
		 *      } );
		 *    } );
		 */
		this.fnGetData = function( src, col )
		{
			var api = this.api( true );
		
			if ( src !== undefined ) {
				var type = src.nodeName ? src.nodeName.toLowerCase() : '';
		
				return col !== undefined || type == 'td' || type == 'th' ?
					api.cell( src, col ).data() :
					api.row( src ).data() || null;
			}
		
			return api.data().toArray();
		};
		
		
		/**
		 * Get an array of the TR nodes that are used in the table's body. Note that you will
		 * typically want to use the '$' API method in preference to this as it is more
		 * flexible.
		 *  @param {int} [iRow] Optional row index for the TR element you want
		 *  @returns {array|node} If iRow is undefined, returns an array of all TR elements
		 *    in the table's body, or iRow is defined, just the TR element requested.
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Get the nodes from the table
		 *      var nNodes = oTable.fnGetNodes( );
		 *    } );
		 */
		this.fnGetNodes = function( iRow )
		{
			var api = this.api( true );
		
			return iRow !== undefined ?
				api.row( iRow ).node() :
				api.rows().nodes().flatten().toArray();
		};
		
		
		/**
		 * Get the array indexes of a particular cell from it's DOM element
		 * and column index including hidden columns
		 *  @param {node} node this can either be a TR, TD or TH in the table's body
		 *  @returns {int} If nNode is given as a TR, then a single index is returned, or
		 *    if given as a cell, an array of [row index, column index (visible),
		 *    column index (all)] is given.
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      $('#example tbody td').click( function () {
		 *        // Get the position of the current data from the node
		 *        var aPos = oTable.fnGetPosition( this );
		 *
		 *        // Get the data array for this row
		 *        var aData = oTable.fnGetData( aPos[0] );
		 *
		 *        // Update the data array and return the value
		 *        aData[ aPos[1] ] = 'clicked';
		 *        this.innerHTML = 'clicked';
		 *      } );
		 *
		 *      // Init DataTables
		 *      oTable = $('#example').dataTable();
		 *    } );
		 */
		this.fnGetPosition = function( node )
		{
			var api = this.api( true );
			var nodeName = node.nodeName.toUpperCase();
		
			if ( nodeName == 'TR' ) {
				return api.row( node ).index();
			}
			else if ( nodeName == 'TD' || nodeName == 'TH' ) {
				var cell = api.cell( node ).index();
		
				return [
					cell.row,
					cell.columnVisible,
					cell.column
				];
			}
			return null;
		};
		
		
		/**
		 * Check to see if a row is 'open' or not.
		 *  @param {node} nTr the table row to check
		 *  @returns {boolean} true if the row is currently open, false otherwise
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable;
		 *
		 *      // 'open' an information row when a row is clicked on
		 *      $('#example tbody tr').click( function () {
		 *        if ( oTable.fnIsOpen(this) ) {
		 *          oTable.fnClose( this );
		 *        } else {
		 *          oTable.fnOpen( this, "Temporary row opened", "info_row" );
		 *        }
		 *      } );
		 *
		 *      oTable = $('#example').dataTable();
		 *    } );
		 */
		this.fnIsOpen = function( nTr )
		{
			return this.api( true ).row( nTr ).child.isShown();
		};
		
		
		/**
		 * This function will place a new row directly after a row which is currently
		 * on display on the page, with the HTML contents that is passed into the
		 * function. This can be used, for example, to ask for confirmation that a
		 * particular record should be deleted.
		 *  @param {node} nTr The table row to 'open'
		 *  @param {string|node|jQuery} mHtml The HTML to put into the row
		 *  @param {string} sClass Class to give the new TD cell
		 *  @returns {node} The row opened. Note that if the table row passed in as the
		 *    first parameter, is not found in the table, this method will silently
		 *    return.
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable;
		 *
		 *      // 'open' an information row when a row is clicked on
		 *      $('#example tbody tr').click( function () {
		 *        if ( oTable.fnIsOpen(this) ) {
		 *          oTable.fnClose( this );
		 *        } else {
		 *          oTable.fnOpen( this, "Temporary row opened", "info_row" );
		 *        }
		 *      } );
		 *
		 *      oTable = $('#example').dataTable();
		 *    } );
		 */
		this.fnOpen = function( nTr, mHtml, sClass )
		{
			return this.api( true )
				.row( nTr )
				.child( mHtml, sClass )
				.show()
				.child()[0];
		};
		
		
		/**
		 * Change the pagination - provides the internal logic for pagination in a simple API
		 * function. With this function you can have a DataTables table go to the next,
		 * previous, first or last pages.
		 *  @param {string|int} mAction Paging action to take: "first", "previous", "next" or "last"
		 *    or page number to jump to (integer), note that page 0 is the first page.
		 *  @param {bool} [bRedraw=true] Redraw the table or not
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *      oTable.fnPageChange( 'next' );
		 *    } );
		 */
		this.fnPageChange = function ( mAction, bRedraw )
		{
			var api = this.api( true ).page( mAction );
		
			if ( bRedraw === undefined || bRedraw ) {
				api.draw(false);
			}
		};
		
		
		/**
		 * Show a particular column
		 *  @param {int} iCol The column whose display should be changed
		 *  @param {bool} bShow Show (true) or hide (false) the column
		 *  @param {bool} [bRedraw=true] Redraw the table or not
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Hide the second column after initialisation
		 *      oTable.fnSetColumnVis( 1, false );
		 *    } );
		 */
		this.fnSetColumnVis = function ( iCol, bShow, bRedraw )
		{
			var api = this.api( true ).column( iCol ).visible( bShow );
		
			if ( bRedraw === undefined || bRedraw ) {
				api.columns.adjust().draw();
			}
		};
		
		
		/**
		 * Get the settings for a particular table for external manipulation
		 *  @returns {object} DataTables settings object. See
		 *    {@link DataTable.models.oSettings}
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *      var oSettings = oTable.fnSettings();
		 *
		 *      // Show an example parameter from the settings
		 *      alert( oSettings._iDisplayStart );
		 *    } );
		 */
		this.fnSettings = function()
		{
			return _fnSettingsFromNode( this[_ext.iApiIndex] );
		};
		
		
		/**
		 * Sort the table by a particular column
		 *  @param {int} iCol the data index to sort on. Note that this will not match the
		 *    'display index' if you have hidden data entries
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Sort immediately with columns 0 and 1
		 *      oTable.fnSort( [ [0,'asc'], [1,'asc'] ] );
		 *    } );
		 */
		this.fnSort = function( aaSort )
		{
			this.api( true ).order( aaSort ).draw();
		};
		
		
		/**
		 * Attach a sort listener to an element for a given column
		 *  @param {node} nNode the element to attach the sort listener to
		 *  @param {int} iColumn the column that a click on this node will sort on
		 *  @param {function} [fnCallback] callback function when sort is run
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *
		 *      // Sort on column 1, when 'sorter' is clicked on
		 *      oTable.fnSortListener( document.getElementById('sorter'), 1 );
		 *    } );
		 */
		this.fnSortListener = function( nNode, iColumn, fnCallback )
		{
			this.api( true ).order.listener( nNode, iColumn, fnCallback );
		};
		
		
		/**
		 * Update a table cell or row - this method will accept either a single value to
		 * update the cell with, an array of values with one element for each column or
		 * an object in the same format as the original data source. The function is
		 * self-referencing in order to make the multi column updates easier.
		 *  @param {object|array|string} mData Data to update the cell/row with
		 *  @param {node|int} mRow TR element you want to update or the aoData index
		 *  @param {int} [iColumn] The column to update, give as null or undefined to
		 *    update a whole row.
		 *  @param {bool} [bRedraw=true] Redraw the table or not
		 *  @param {bool} [bAction=true] Perform pre-draw actions or not
		 *  @returns {int} 0 on success, 1 on error
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *      oTable.fnUpdate( 'Example update', 0, 0 ); // Single cell
		 *      oTable.fnUpdate( ['a', 'b', 'c', 'd', 'e'], $('tbody tr')[0] ); // Row
		 *    } );
		 */
		this.fnUpdate = function( mData, mRow, iColumn, bRedraw, bAction )
		{
			var api = this.api( true );
		
			if ( iColumn === undefined || iColumn === null ) {
				api.row( mRow ).data( mData );
			}
			else {
				api.cell( mRow, iColumn ).data( mData );
			}
		
			if ( bAction === undefined || bAction ) {
				api.columns.adjust();
			}
		
			if ( bRedraw === undefined || bRedraw ) {
				api.draw();
			}
			return 0;
		};
		
		
		/**
		 * Provide a common method for plug-ins to check the version of DataTables being used, in order
		 * to ensure compatibility.
		 *  @param {string} sVersion Version string to check for, in the format "X.Y.Z". Note that the
		 *    formats "X" and "X.Y" are also acceptable.
		 *  @returns {boolean} true if this version of DataTables is greater or equal to the required
		 *    version, or false if this version of DataTales is not suitable
		 *  @method
		 *  @dtopt API
		 *  @deprecated Since v1.10
		 *
		 *  @example
		 *    $(document).ready(function() {
		 *      var oTable = $('#example').dataTable();
		 *      alert( oTable.fnVersionCheck( '1.9.0' ) );
		 *    } );
		 */
		this.fnVersionCheck = _ext.fnVersionCheck;
		

		var _that = this;
		var emptyInit = options === undefined;
		var len = this.length;

		if ( emptyInit ) {
			options = {};
		}

		this.oApi = this.internal = _ext.internal;

		// Extend with old style plug-in API methods
		for ( var fn in DataTable.ext.internal ) {
			if ( fn ) {
				this[fn] = _fnExternApiFunc(fn);
			}
		}

		this.each(function() {
			// For each initialisation we want to give it a clean initialisation
			// object that can be bashed around
			var o = {};
			var oInit = len > 1 ? // optimisation for single table case
				_fnExtend( o, options, true ) :
				options;

			/*global oInit,_that,emptyInit*/
			var i=0, iLen, j, jLen, k, kLen;
			var sId = this.getAttribute( 'id' );
			var bInitHandedOff = false;
			var defaults = DataTable.defaults;
			var $this = $(this);
			
			
			/* Sanity check */
			if ( this.nodeName.toLowerCase() != 'table' )
			{
				_fnLog( null, 0, 'Non-table node initialisation ('+this.nodeName+')', 2 );
				return;
			}
			
			/* Backwards compatibility for the defaults */
			_fnCompatOpts( defaults );
			_fnCompatCols( defaults.column );
			
			/* Convert the camel-case defaults to Hungarian */
			_fnCamelToHungarian( defaults, defaults, true );
			_fnCamelToHungarian( defaults.column, defaults.column, true );
			
			/* Setting up the initialisation object */
			_fnCamelToHungarian( defaults, $.extend( oInit, $this.data() ), true );
			
			
			
			/* Check to see if we are re-initialising a table */
			var allSettings = DataTable.settings;
			for ( i=0, iLen=allSettings.length ; i<iLen ; i++ )
			{
				var s = allSettings[i];
			
				/* Base check on table node */
				if (
					s.nTable == this ||
					(s.nTHead && s.nTHead.parentNode == this) ||
					(s.nTFoot && s.nTFoot.parentNode == this)
				) {
					var bRetrieve = oInit.bRetrieve !== undefined ? oInit.bRetrieve : defaults.bRetrieve;
					var bDestroy = oInit.bDestroy !== undefined ? oInit.bDestroy : defaults.bDestroy;
			
					if ( emptyInit || bRetrieve )
					{
						return s.oInstance;
					}
					else if ( bDestroy )
					{
						s.oInstance.fnDestroy();
						break;
					}
					else
					{
						_fnLog( s, 0, 'Cannot reinitialise DataTable', 3 );
						return;
					}
				}
			
				/* If the element we are initialising has the same ID as a table which was previously
				 * initialised, but the table nodes don't match (from before) then we destroy the old
				 * instance by simply deleting it. This is under the assumption that the table has been
				 * destroyed by other methods. Anyone using non-id selectors will need to do this manually
				 */
				if ( s.sTableId == this.id )
				{
					allSettings.splice( i, 1 );
					break;
				}
			}
			
			/* Ensure the table has an ID - required for accessibility */
			if ( sId === null || sId === "" )
			{
				sId = "DataTables_Table_"+(DataTable.ext._unique++);
				this.id = sId;
			}
			
			/* Create the settings object for this table and set some of the default parameters */
			var oSettings = $.extend( true, {}, DataTable.models.oSettings, {
				"sDestroyWidth": $this[0].style.width,
				"sInstance":     sId,
				"sTableId":      sId
			} );
			oSettings.nTable = this;
			oSettings.oApi   = _that.internal;
			oSettings.oInit  = oInit;
			
			allSettings.push( oSettings );
			
			// Need to add the instance after the instance after the settings object has been added
			// to the settings array, so we can self reference the table instance if more than one
			oSettings.oInstance = (_that.length===1) ? _that : $this.dataTable();
			
			// Backwards compatibility, before we apply all the defaults
			_fnCompatOpts( oInit );
			_fnLanguageCompat( oInit.oLanguage );
			
			// If the length menu is given, but the init display length is not, use the length menu
			if ( oInit.aLengthMenu && ! oInit.iDisplayLength )
			{
				oInit.iDisplayLength = Array.isArray( oInit.aLengthMenu[0] ) ?
					oInit.aLengthMenu[0][0] : oInit.aLengthMenu[0];
			}
			
			// Apply the defaults and init options to make a single init object will all
			// options defined from defaults and instance options.
			oInit = _fnExtend( $.extend( true, {}, defaults ), oInit );
			
			
			// Map the initialisation options onto the settings object
			_fnMap( oSettings.oFeatures, oInit, [
				"bPaginate",
				"bLengthChange",
				"bFilter",
				"bSort",
				"bSortMulti",
				"bInfo",
				"bProcessing",
				"bAutoWidth",
				"bSortClasses",
				"bServerSide",
				"bDeferRender"
			] );
			_fnMap( oSettings, oInit, [
				"asStripeClasses",
				"ajax",
				"fnServerData",
				"fnFormatNumber",
				"sServerMethod",
				"aaSorting",
				"aaSortingFixed",
				"aLengthMenu",
				"sPaginationType",
				"sAjaxSource",
				"sAjaxDataProp",
				"iStateDuration",
				"sDom",
				"bSortCellsTop",
				"iTabIndex",
				"fnStateLoadCallback",
				"fnStateSaveCallback",
				"renderer",
				"searchDelay",
				"rowId",
				[ "iCookieDuration", "iStateDuration" ], // backwards compat
				[ "oSearch", "oPreviousSearch" ],
				[ "aoSearchCols", "aoPreSearchCols" ],
				[ "iDisplayLength", "_iDisplayLength" ]
			] );
			_fnMap( oSettings.oScroll, oInit, [
				[ "sScrollX", "sX" ],
				[ "sScrollXInner", "sXInner" ],
				[ "sScrollY", "sY" ],
				[ "bScrollCollapse", "bCollapse" ]
			] );
			_fnMap( oSettings.oLanguage, oInit, "fnInfoCallback" );
			
			/* Callback functions which are array driven */
			_fnCallbackReg( oSettings, 'aoDrawCallback',       oInit.fnDrawCallback,      'user' );
			_fnCallbackReg( oSettings, 'aoServerParams',       oInit.fnServerParams,      'user' );
			_fnCallbackReg( oSettings, 'aoStateSaveParams',    oInit.fnStateSaveParams,   'user' );
			_fnCallbackReg( oSettings, 'aoStateLoadParams',    oInit.fnStateLoadParams,   'user' );
			_fnCallbackReg( oSettings, 'aoStateLoaded',        oInit.fnStateLoaded,       'user' );
			_fnCallbackReg( oSettings, 'aoRowCallback',        oInit.fnRowCallback,       'user' );
			_fnCallbackReg( oSettings, 'aoRowCreatedCallback', oInit.fnCreatedRow,        'user' );
			_fnCallbackReg( oSettings, 'aoHeaderCallback',     oInit.fnHeaderCallback,    'user' );
			_fnCallbackReg( oSettings, 'aoFooterCallback',     oInit.fnFooterCallback,    'user' );
			_fnCallbackReg( oSettings, 'aoInitComplete',       oInit.fnInitComplete,      'user' );
			_fnCallbackReg( oSettings, 'aoPreDrawCallback',    oInit.fnPreDrawCallback,   'user' );
			
			oSettings.rowIdFn = _fnGetObjectDataFn( oInit.rowId );
			
			/* Browser support detection */
			_fnBrowserDetect( oSettings );
			
			var oClasses = oSettings.oClasses;
			
			$.extend( oClasses, DataTable.ext.classes, oInit.oClasses );
			$this.addClass( oClasses.sTable );
			
			
			if ( oSettings.iInitDisplayStart === undefined )
			{
				/* Display start point, taking into account the save saving */
				oSettings.iInitDisplayStart = oInit.iDisplayStart;
				oSettings._iDisplayStart = oInit.iDisplayStart;
			}
			
			if ( oInit.iDeferLoading !== null )
			{
				oSettings.bDeferLoading = true;
				var tmp = Array.isArray( oInit.iDeferLoading );
				oSettings._iRecordsDisplay = tmp ? oInit.iDeferLoading[0] : oInit.iDeferLoading;
				oSettings._iRecordsTotal = tmp ? oInit.iDeferLoading[1] : oInit.iDeferLoading;
			}
			
			/* Language definitions */
			var oLanguage = oSettings.oLanguage;
			$.extend( true, oLanguage, oInit.oLanguage );
			
			if ( oLanguage.sUrl )
			{
				/* Get the language definitions from a file - because this Ajax call makes the language
				 * get async to the remainder of this function we use bInitHandedOff to indicate that
				 * _fnInitialise will be fired by the returned Ajax handler, rather than the constructor
				 */
				$.ajax( {
					dataType: 'json',
					url: oLanguage.sUrl,
					success: function ( json ) {
						_fnLanguageCompat( json );
						_fnCamelToHungarian( defaults.oLanguage, json );
						$.extend( true, oLanguage, json );
			
						_fnCallbackFire( oSettings, null, 'i18n', [oSettings]);
						_fnInitialise( oSettings );
					},
					error: function () {
						// Error occurred loading language file, continue on as best we can
						_fnInitialise( oSettings );
					}
				} );
				bInitHandedOff = true;
			}
			else {
				_fnCallbackFire( oSettings, null, 'i18n', [oSettings]);
			}
			
			/*
			 * Stripes
			 */
			if ( oInit.asStripeClasses === null )
			{
				oSettings.asStripeClasses =[
					oClasses.sStripeOdd,
					oClasses.sStripeEven
				];
			}
			
			/* Remove row stripe classes if they are already on the table row */
			var stripeClasses = oSettings.asStripeClasses;
			var rowOne = $this.children('tbody').find('tr').eq(0);
			if ( $.inArray( true, $.map( stripeClasses, function(el, i) {
				return rowOne.hasClass(el);
			} ) ) !== -1 ) {
				$('tbody tr', this).removeClass( stripeClasses.join(' ') );
				oSettings.asDestroyStripes = stripeClasses.slice();
			}
			
			/*
			 * Columns
			 * See if we should load columns automatically or use defined ones
			 */
			var anThs = [];
			var aoColumnsInit;
			var nThead = this.getElementsByTagName('thead');
			if ( nThead.length !== 0 )
			{
				_fnDetectHeader( oSettings.aoHeader, nThead[0] );
				anThs = _fnGetUniqueThs( oSettings );
			}
			
			/* If not given a column array, generate one with nulls */
			if ( oInit.aoColumns === null )
			{
				aoColumnsInit = [];
				for ( i=0, iLen=anThs.length ; i<iLen ; i++ )
				{
					aoColumnsInit.push( null );
				}
			}
			else
			{
				aoColumnsInit = oInit.aoColumns;
			}
			
			/* Add the columns */
			for ( i=0, iLen=aoColumnsInit.length ; i<iLen ; i++ )
			{
				_fnAddColumn( oSettings, anThs ? anThs[i] : null );
			}
			
			/* Apply the column definitions */
			_fnApplyColumnDefs( oSettings, oInit.aoColumnDefs, aoColumnsInit, function (iCol, oDef) {
				_fnColumnOptions( oSettings, iCol, oDef );
			} );
			
			/* HTML5 attribute detection - build an mData object automatically if the
			 * attributes are found
			 */
			if ( rowOne.length ) {
				var a = function ( cell, name ) {
					return cell.getAttribute( 'data-'+name ) !== null ? name : null;
				};
			
				$( rowOne[0] ).children('th, td').each( function (i, cell) {
					var col = oSettings.aoColumns[i];
			
					if ( col.mData === i ) {
						var sort = a( cell, 'sort' ) || a( cell, 'order' );
						var filter = a( cell, 'filter' ) || a( cell, 'search' );
			
						if ( sort !== null || filter !== null ) {
							col.mData = {
								_:      i+'.display',
								sort:   sort !== null   ? i+'.@data-'+sort   : undefined,
								type:   sort !== null   ? i+'.@data-'+sort   : undefined,
								filter: filter !== null ? i+'.@data-'+filter : undefined
							};
			
							_fnColumnOptions( oSettings, i );
						}
					}
				} );
			}
			
			var features = oSettings.oFeatures;
			var loadedInit = function () {
				/*
				 * Sorting
				 * @todo For modularisation (1.11) this needs to do into a sort start up handler
				 */
			
				// If aaSorting is not defined, then we use the first indicator in asSorting
				// in case that has been altered, so the default sort reflects that option
				if ( oInit.aaSorting === undefined ) {
					var sorting = oSettings.aaSorting;
					for ( i=0, iLen=sorting.length ; i<iLen ; i++ ) {
						sorting[i][1] = oSettings.aoColumns[ i ].asSorting[0];
					}
				}
			
				/* Do a first pass on the sorting classes (allows any size changes to be taken into
				 * account, and also will apply sorting disabled classes if disabled
				 */
				_fnSortingClasses( oSettings );
			
				if ( features.bSort ) {
					_fnCallbackReg( oSettings, 'aoDrawCallback', function () {
						if ( oSettings.bSorted ) {
							var aSort = _fnSortFlatten( oSettings );
							var sortedColumns = {};
			
							$.each( aSort, function (i, val) {
								sortedColumns[ val.src ] = val.dir;
							} );
			
							_fnCallbackFire( oSettings, null, 'order', [oSettings, aSort, sortedColumns] );
							_fnSortAria( oSettings );
						}
					} );
				}
			
				_fnCallbackReg( oSettings, 'aoDrawCallback', function () {
					if ( oSettings.bSorted || _fnDataSource( oSettings ) === 'ssp' || features.bDeferRender ) {
						_fnSortingClasses( oSettings );
					}
				}, 'sc' );
			
			
				/*
				 * Final init
				 * Cache the header, body and footer as required, creating them if needed
				 */
			
				// Work around for Webkit bug 83867 - store the caption-side before removing from doc
				var captions = $this.children('caption').each( function () {
					this._captionSide = $(this).css('caption-side');
				} );
			
				var thead = $this.children('thead');
				if ( thead.length === 0 ) {
					thead = $('<thead/>').appendTo($this);
				}
				oSettings.nTHead = thead[0];
			
				var tbody = $this.children('tbody');
				if ( tbody.length === 0 ) {
					tbody = $('<tbody/>').insertAfter(thead);
				}
				oSettings.nTBody = tbody[0];
			
				var tfoot = $this.children('tfoot');
				if ( tfoot.length === 0 && captions.length > 0 && (oSettings.oScroll.sX !== "" || oSettings.oScroll.sY !== "") ) {
					// If we are a scrolling table, and no footer has been given, then we need to create
					// a tfoot element for the caption element to be appended to
					tfoot = $('<tfoot/>').appendTo($this);
				}
			
				if ( tfoot.length === 0 || tfoot.children().length === 0 ) {
					$this.addClass( oClasses.sNoFooter );
				}
				else if ( tfoot.length > 0 ) {
					oSettings.nTFoot = tfoot[0];
					_fnDetectHeader( oSettings.aoFooter, oSettings.nTFoot );
				}
			
				/* Check if there is data passing into the constructor */
				if ( oInit.aaData ) {
					for ( i=0 ; i<oInit.aaData.length ; i++ ) {
						_fnAddData( oSettings, oInit.aaData[ i ] );
					}
				}
				else if ( oSettings.bDeferLoading || _fnDataSource( oSettings ) == 'dom' ) {
					/* Grab the data from the page - only do this when deferred loading or no Ajax
					 * source since there is no point in reading the DOM data if we are then going
					 * to replace it with Ajax data
					 */
					_fnAddTr( oSettings, $(oSettings.nTBody).children('tr') );
				}
			
				/* Copy the data index array */
				oSettings.aiDisplay = oSettings.aiDisplayMaster.slice();
			
				/* Initialisation complete - table can be drawn */
				oSettings.bInitialised = true;
			
				/* Check if we need to initialise the table (it might not have been handed off to the
				 * language processor)
				 */
				if ( bInitHandedOff === false ) {
					_fnInitialise( oSettings );
				}
			};
			
			/* Must be done after everything which can be overridden by the state saving! */
			if ( oInit.bStateSave )
			{
				features.bStateSave = true;
				_fnCallbackReg( oSettings, 'aoDrawCallback', _fnSaveState, 'state_save' );
				_fnLoadState( oSettings, oInit, loadedInit );
			}
			else {
				loadedInit();
			}
			
		} );
		_that = null;
		return this;
	};

	
	/*
	 * It is useful to have variables which are scoped locally so only the
	 * DataTables functions can access them and they don't leak into global space.
	 * At the same time these functions are often useful over multiple files in the
	 * core and API, so we list, or at least document, all variables which are used
	 * by DataTables as private variables here. This also ensures that there is no
	 * clashing of variable names and that they can easily referenced for reuse.
	 */
	
	
	// Defined else where
	//  _selector_run
	//  _selector_opts
	//  _selector_first
	//  _selector_row_indexes
	
	var _ext; // DataTable.ext
	var _Api; // DataTable.Api
	var _api_register; // DataTable.Api.register
	var _api_registerPlural; // DataTable.Api.registerPlural
	
	var _re_dic = {};
	var _re_new_lines = /[\r\n\u2028]/g;
	var _re_html = /<.*?>/g;
	
	// This is not strict ISO8601 - Date.parse() is quite lax, although
	// implementations differ between browsers.
	var _re_date = /^\d{2,4}[\.\/\-]\d{1,2}[\.\/\-]\d{1,2}([T ]{1}\d{1,2}[:\.]\d{2}([\.:]\d{2})?)?$/;
	
	// Escape regular expression special characters
	var _re_escape_regex = new RegExp( '(\\' + [ '/', '.', '*', '+', '?', '|', '(', ')', '[', ']', '{', '}', '\\', '$', '^', '-' ].join('|\\') + ')', 'g' );
	
	// http://en.wikipedia.org/wiki/Foreign_exchange_market
	// - \u20BD - Russian ruble.
	// - \u20a9 - South Korean Won
	// - \u20BA - Turkish Lira
	// - \u20B9 - Indian Rupee
	// - R - Brazil (R$) and South Africa
	// - fr - Swiss Franc
	// - kr - Swedish krona, Norwegian krone and Danish krone
	// - \u2009 is thin space and \u202F is narrow no-break space, both used in many
	// - Ƀ - Bitcoin
	// - Ξ - Ethereum
	//   standards as thousands separators.
	var _re_formatted_numeric = /['\u00A0,$£€¥%\u2009\u202F\u20BD\u20a9\u20BArfkɃΞ]/gi;
	
	
	var _empty = function ( d ) {
		return !d || d === true || d === '-' ? true : false;
	};
	
	
	var _intVal = function ( s ) {
		var integer = parseInt( s, 10 );
		return !isNaN(integer) && isFinite(s) ? integer : null;
	};
	
	// Convert from a formatted number with characters other than `.` as the
	// decimal place, to a Javascript number
	var _numToDecimal = function ( num, decimalPoint ) {
		// Cache created regular expressions for speed as this function is called often
		if ( ! _re_dic[ decimalPoint ] ) {
			_re_dic[ decimalPoint ] = new RegExp( _fnEscapeRegex( decimalPoint ), 'g' );
		}
		return typeof num === 'string' && decimalPoint !== '.' ?
			num.replace( /\./g, '' ).replace( _re_dic[ decimalPoint ], '.' ) :
			num;
	};
	
	
	var _isNumber = function ( d, decimalPoint, formatted ) {
		var strType = typeof d === 'string';
	
		// If empty return immediately so there must be a number if it is a
		// formatted string (this stops the string "k", or "kr", etc being detected
		// as a formatted number for currency
		if ( _empty( d ) ) {
			return true;
		}
	
		if ( decimalPoint && strType ) {
			d = _numToDecimal( d, decimalPoint );
		}
	
		if ( formatted && strType ) {
			d = d.replace( _re_formatted_numeric, '' );
		}
	
		return !isNaN( parseFloat(d) ) && isFinite( d );
	};
	
	
	// A string without HTML in it can be considered to be HTML still
	var _isHtml = function ( d ) {
		return _empty( d ) || typeof d === 'string';
	};
	
	
	var _htmlNumeric = function ( d, decimalPoint, formatted ) {
		if ( _empty( d ) ) {
			return true;
		}
	
		var html = _isHtml( d );
		return ! html ?
			null :
			_isNumber( _stripHtml( d ), decimalPoint, formatted ) ?
				true :
				null;
	};
	
	
	var _pluck = function ( a, prop, prop2 ) {
		var out = [];
		var i=0, ien=a.length;
	
		// Could have the test in the loop for slightly smaller code, but speed
		// is essential here
		if ( prop2 !== undefined ) {
			for ( ; i<ien ; i++ ) {
				if ( a[i] && a[i][ prop ] ) {
					out.push( a[i][ prop ][ prop2 ] );
				}
			}
		}
		else {
			for ( ; i<ien ; i++ ) {
				if ( a[i] ) {
					out.push( a[i][ prop ] );
				}
			}
		}
	
		return out;
	};
	
	
	// Basically the same as _pluck, but rather than looping over `a` we use `order`
	// as the indexes to pick from `a`
	var _pluck_order = function ( a, order, prop, prop2 )
	{
		var out = [];
		var i=0, ien=order.length;
	
		// Could have the test in the loop for slightly smaller code, but speed
		// is essential here
		if ( prop2 !== undefined ) {
			for ( ; i<ien ; i++ ) {
				if ( a[ order[i] ][ prop ] ) {
					out.push( a[ order[i] ][ prop ][ prop2 ] );
				}
			}
		}
		else {
			for ( ; i<ien ; i++ ) {
				out.push( a[ order[i] ][ prop ] );
			}
		}
	
		return out;
	};
	
	
	var _range = function ( len, start )
	{
		var out = [];
		var end;
	
		if ( start === undefined ) {
			start = 0;
			end = len;
		}
		else {
			end = start;
			start = len;
		}
	
		for ( var i=start ; i<end ; i++ ) {
			out.push( i );
		}
	
		return out;
	};
	
	
	var _removeEmpty = function ( a )
	{
		var out = [];
	
		for ( var i=0, ien=a.length ; i<ien ; i++ ) {
			if ( a[i] ) { // careful - will remove all falsy values!
				out.push( a[i] );
			}
		}
	
		return out;
	};
	
	
	var _stripHtml = function ( d ) {
		return d.replace( _re_html, '' );
	};
	
	
	/**
	 * Determine if all values in the array are unique. This means we can short
	 * cut the _unique method at the cost of a single loop. A sorted array is used
	 * to easily check the values.
	 *
	 * @param  {array} src Source array
	 * @return {boolean} true if all unique, false otherwise
	 * @ignore
	 */
	var _areAllUnique = function ( src ) {
		if ( src.length < 2 ) {
			return true;
		}
	
		var sorted = src.slice().sort();
		var last = sorted[0];
	
		for ( var i=1, ien=sorted.length ; i<ien ; i++ ) {
			if ( sorted[i] === last ) {
				return false;
			}
	
			last = sorted[i];
		}
	
		return true;
	};
	
	
	/**
	 * Find the unique elements in a source array.
	 *
	 * @param  {array} src Source array
	 * @return {array} Array of unique items
	 * @ignore
	 */
	var _unique = function ( src )
	{
		if ( _areAllUnique( src ) ) {
			return src.slice();
		}
	
		// A faster unique method is to use object keys to identify used values,
		// but this doesn't work with arrays or objects, which we must also
		// consider. See jsperf.com/compare-array-unique-versions/4 for more
		// information.
		var
			out = [],
			val,
			i, ien=src.length,
			j, k=0;
	
		again: for ( i=0 ; i<ien ; i++ ) {
			val = src[i];
	
			for ( j=0 ; j<k ; j++ ) {
				if ( out[j] === val ) {
					continue again;
				}
			}
	
			out.push( val );
			k++;
		}
	
		return out;
	};
	
	// Surprisingly this is faster than [].concat.apply
	// https://jsperf.com/flatten-an-array-loop-vs-reduce/2
	var _flatten = function (out, val) {
		if (Array.isArray(val)) {
			for (var i=0 ; i<val.length ; i++) {
				_flatten(out, val[i]);
			}
		}
		else {
			out.push(val);
		}
	  
		return out;
	}
	
	// Array.isArray polyfill.
	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/isArray
	if (! Array.isArray) {
	    Array.isArray = function(arg) {
	        return Object.prototype.toString.call(arg) === '[object Array]';
	    };
	}
	
	// .trim() polyfill
	// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/trim
	if (!String.prototype.trim) {
	  String.prototype.trim = function () {
	    return this.replace(/^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g, '');
	  };
	}
	
	/**
	 * DataTables utility methods
	 * 
	 * This namespace provides helper methods that DataTables uses internally to
	 * create a DataTable, but which are not exclusively used only for DataTables.
	 * These methods can be used by extension authors to save the duplication of
	 * code.
	 *
	 *  @namespace
	 */
	DataTable.util = {
		/**
		 * Throttle the calls to a function. Arguments and context are maintained
		 * for the throttled function.
		 *
		 * @param {function} fn Function to be called
		 * @param {integer} freq Call frequency in mS
		 * @return {function} Wrapped function
		 */
		throttle: function ( fn, freq ) {
			var
				frequency = freq !== undefined ? freq : 200,
				last,
				timer;
	
			return function () {
				var
					that = this,
					now  = +new Date(),
					args = arguments;
	
				if ( last && now < last + frequency ) {
					clearTimeout( timer );
	
					timer = setTimeout( function () {
						last = undefined;
						fn.apply( that, args );
					}, frequency );
				}
				else {
					last = now;
					fn.apply( that, args );
				}
			};
		},
	
	
		/**
		 * Escape a string such that it can be used in a regular expression
		 *
		 *  @param {string} val string to escape
		 *  @returns {string} escaped string
		 */
		escapeRegex: function ( val ) {
			return val.replace( _re_escape_regex, '\\$1' );
		}
	};
	
	
	
	/**
	 * Create a mapping object that allows camel case parameters to be looked up
	 * for their Hungarian counterparts. The mapping is stored in a private
	 * parameter called `_hungarianMap` which can be accessed on the source object.
	 *  @param {object} o
	 *  @memberof DataTable#oApi
	 */
	function _fnHungarianMap ( o )
	{
		var
			hungarian = 'a aa ai ao as b fn i m o s ',
			match,
			newKey,
			map = {};
	
		$.each( o, function (key, val) {
			match = key.match(/^([^A-Z]+?)([A-Z])/);
	
			if ( match && hungarian.indexOf(match[1]+' ') !== -1 )
			{
				newKey = key.replace( match[0], match[2].toLowerCase() );
				map[ newKey ] = key;
	
				if ( match[1] === 'o' )
				{
					_fnHungarianMap( o[key] );
				}
			}
		} );
	
		o._hungarianMap = map;
	}
	
	
	/**
	 * Convert from camel case parameters to Hungarian, based on a Hungarian map
	 * created by _fnHungarianMap.
	 *  @param {object} src The model object which holds all parameters that can be
	 *    mapped.
	 *  @param {object} user The object to convert from camel case to Hungarian.
	 *  @param {boolean} force When set to `true`, properties which already have a
	 *    Hungarian value in the `user` object will be overwritten. Otherwise they
	 *    won't be.
	 *  @memberof DataTable#oApi
	 */
	function _fnCamelToHungarian ( src, user, force )
	{
		if ( ! src._hungarianMap ) {
			_fnHungarianMap( src );
		}
	
		var hungarianKey;
	
		$.each( user, function (key, val) {
			hungarianKey = src._hungarianMap[ key ];
	
			if ( hungarianKey !== undefined && (force || user[hungarianKey] === undefined) )
			{
				// For objects, we need to buzz down into the object to copy parameters
				if ( hungarianKey.charAt(0) === 'o' )
				{
					// Copy the camelCase options over to the hungarian
					if ( ! user[ hungarianKey ] ) {
						user[ hungarianKey ] = {};
					}
					$.extend( true, user[hungarianKey], user[key] );
	
					_fnCamelToHungarian( src[hungarianKey], user[hungarianKey], force );
				}
				else {
					user[hungarianKey] = user[ key ];
				}
			}
		} );
	}
	
	
	/**
	 * Language compatibility - when certain options are given, and others aren't, we
	 * need to duplicate the values over, in order to provide backwards compatibility
	 * with older language files.
	 *  @param {object} oSettings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnLanguageCompat( lang )
	{
		// Note the use of the Hungarian notation for the parameters in this method as
		// this is called after the mapping of camelCase to Hungarian
		var defaults = DataTable.defaults.oLanguage;
	
		// Default mapping
		var defaultDecimal = defaults.sDecimal;
		if ( defaultDecimal ) {
			_addNumericSort( defaultDecimal );
		}
	
		if ( lang ) {
			var zeroRecords = lang.sZeroRecords;
	
			// Backwards compatibility - if there is no sEmptyTable given, then use the same as
			// sZeroRecords - assuming that is given.
			if ( ! lang.sEmptyTable && zeroRecords &&
				defaults.sEmptyTable === "No data available in table" )
			{
				_fnMap( lang, lang, 'sZeroRecords', 'sEmptyTable' );
			}
	
			// Likewise with loading records
			if ( ! lang.sLoadingRecords && zeroRecords &&
				defaults.sLoadingRecords === "Loading..." )
			{
				_fnMap( lang, lang, 'sZeroRecords', 'sLoadingRecords' );
			}
	
			// Old parameter name of the thousands separator mapped onto the new
			if ( lang.sInfoThousands ) {
				lang.sThousands = lang.sInfoThousands;
			}
	
			var decimal = lang.sDecimal;
			if ( decimal && defaultDecimal !== decimal ) {
				_addNumericSort( decimal );
			}
		}
	}
	
	
	/**
	 * Map one parameter onto another
	 *  @param {object} o Object to map
	 *  @param {*} knew The new parameter name
	 *  @param {*} old The old parameter name
	 */
	var _fnCompatMap = function ( o, knew, old ) {
		if ( o[ knew ] !== undefined ) {
			o[ old ] = o[ knew ];
		}
	};
	
	
	/**
	 * Provide backwards compatibility for the main DT options. Note that the new
	 * options are mapped onto the old parameters, so this is an external interface
	 * change only.
	 *  @param {object} init Object to map
	 */
	function _fnCompatOpts ( init )
	{
		_fnCompatMap( init, 'ordering',      'bSort' );
		_fnCompatMap( init, 'orderMulti',    'bSortMulti' );
		_fnCompatMap( init, 'orderClasses',  'bSortClasses' );
		_fnCompatMap( init, 'orderCellsTop', 'bSortCellsTop' );
		_fnCompatMap( init, 'order',         'aaSorting' );
		_fnCompatMap( init, 'orderFixed',    'aaSortingFixed' );
		_fnCompatMap( init, 'paging',        'bPaginate' );
		_fnCompatMap( init, 'pagingType',    'sPaginationType' );
		_fnCompatMap( init, 'pageLength',    'iDisplayLength' );
		_fnCompatMap( init, 'searching',     'bFilter' );
	
		// Boolean initialisation of x-scrolling
		if ( typeof init.sScrollX === 'boolean' ) {
			init.sScrollX = init.sScrollX ? '100%' : '';
		}
		if ( typeof init.scrollX === 'boolean' ) {
			init.scrollX = init.scrollX ? '100%' : '';
		}
	
		// Column search objects are in an array, so it needs to be converted
		// element by element
		var searchCols = init.aoSearchCols;
	
		if ( searchCols ) {
			for ( var i=0, ien=searchCols.length ; i<ien ; i++ ) {
				if ( searchCols[i] ) {
					_fnCamelToHungarian( DataTable.models.oSearch, searchCols[i] );
				}
			}
		}
	}
	
	
	/**
	 * Provide backwards compatibility for column options. Note that the new options
	 * are mapped onto the old parameters, so this is an external interface change
	 * only.
	 *  @param {object} init Object to map
	 */
	function _fnCompatCols ( init )
	{
		_fnCompatMap( init, 'orderable',     'bSortable' );
		_fnCompatMap( init, 'orderData',     'aDataSort' );
		_fnCompatMap( init, 'orderSequence', 'asSorting' );
		_fnCompatMap( init, 'orderDataType', 'sortDataType' );
	
		// orderData can be given as an integer
		var dataSort = init.aDataSort;
		if ( typeof dataSort === 'number' && ! Array.isArray( dataSort ) ) {
			init.aDataSort = [ dataSort ];
		}
	}
	
	
	/**
	 * Browser feature detection for capabilities, quirks
	 *  @param {object} settings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnBrowserDetect( settings )
	{
		// We don't need to do this every time DataTables is constructed, the values
		// calculated are specific to the browser and OS configuration which we
		// don't expect to change between initialisations
		if ( ! DataTable.__browser ) {
			var browser = {};
			DataTable.__browser = browser;
	
			// Scrolling feature / quirks detection
			var n = $('<div/>')
				.css( {
					position: 'fixed',
					top: 0,
					left: $(window).scrollLeft()*-1, // allow for scrolling
					height: 1,
					width: 1,
					overflow: 'hidden'
				} )
				.append(
					$('<div/>')
						.css( {
							position: 'absolute',
							top: 1,
							left: 1,
							width: 100,
							overflow: 'scroll'
						} )
						.append(
							$('<div/>')
								.css( {
									width: '100%',
									height: 10
								} )
						)
				)
				.appendTo( 'body' );
	
			var outer = n.children();
			var inner = outer.children();
	
			// Numbers below, in order, are:
			// inner.offsetWidth, inner.clientWidth, outer.offsetWidth, outer.clientWidth
			//
			// IE6 XP:                           100 100 100  83
			// IE7 Vista:                        100 100 100  83
			// IE 8+ Windows:                     83  83 100  83
			// Evergreen Windows:                 83  83 100  83
			// Evergreen Mac with scrollbars:     85  85 100  85
			// Evergreen Mac without scrollbars: 100 100 100 100
	
			// Get scrollbar width
			browser.barWidth = outer[0].offsetWidth - outer[0].clientWidth;
	
			// IE6/7 will oversize a width 100% element inside a scrolling element, to
			// include the width of the scrollbar, while other browsers ensure the inner
			// element is contained without forcing scrolling
			browser.bScrollOversize = inner[0].offsetWidth === 100 && outer[0].clientWidth !== 100;
	
			// In rtl text layout, some browsers (most, but not all) will place the
			// scrollbar on the left, rather than the right.
			browser.bScrollbarLeft = Math.round( inner.offset().left ) !== 1;
	
			// IE8- don't provide height and width for getBoundingClientRect
			browser.bBounding = n[0].getBoundingClientRect().width ? true : false;
	
			n.remove();
		}
	
		$.extend( settings.oBrowser, DataTable.__browser );
		settings.oScroll.iBarWidth = DataTable.__browser.barWidth;
	}
	
	
	/**
	 * Array.prototype reduce[Right] method, used for browsers which don't support
	 * JS 1.6. Done this way to reduce code size, since we iterate either way
	 *  @param {object} settings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnReduce ( that, fn, init, start, end, inc )
	{
		var
			i = start,
			value,
			isSet = false;
	
		if ( init !== undefined ) {
			value = init;
			isSet = true;
		}
	
		while ( i !== end ) {
			if ( ! that.hasOwnProperty(i) ) {
				continue;
			}
	
			value = isSet ?
				fn( value, that[i], i, that ) :
				that[i];
	
			isSet = true;
			i += inc;
		}
	
		return value;
	}
	
	/**
	 * Add a column to the list used for the table with default values
	 *  @param {object} oSettings dataTables settings object
	 *  @param {node} nTh The th element for this column
	 *  @memberof DataTable#oApi
	 */
	function _fnAddColumn( oSettings, nTh )
	{
		// Add column to aoColumns array
		var oDefaults = DataTable.defaults.column;
		var iCol = oSettings.aoColumns.length;
		var oCol = $.extend( {}, DataTable.models.oColumn, oDefaults, {
			"nTh": nTh ? nTh : document.createElement('th'),
			"sTitle":    oDefaults.sTitle    ? oDefaults.sTitle    : nTh ? nTh.innerHTML : '',
			"aDataSort": oDefaults.aDataSort ? oDefaults.aDataSort : [iCol],
			"mData": oDefaults.mData ? oDefaults.mData : iCol,
			idx: iCol
		} );
		oSettings.aoColumns.push( oCol );
	
		// Add search object for column specific search. Note that the `searchCols[ iCol ]`
		// passed into extend can be undefined. This allows the user to give a default
		// with only some of the parameters defined, and also not give a default
		var searchCols = oSettings.aoPreSearchCols;
		searchCols[ iCol ] = $.extend( {}, DataTable.models.oSearch, searchCols[ iCol ] );
	
		// Use the default column options function to initialise classes etc
		_fnColumnOptions( oSettings, iCol, $(nTh).data() );
	}
	
	
	/**
	 * Apply options for a column
	 *  @param {object} oSettings dataTables settings object
	 *  @param {int} iCol column index to consider
	 *  @param {object} oOptions object with sType, bVisible and bSearchable etc
	 *  @memberof DataTable#oApi
	 */
	function _fnColumnOptions( oSettings, iCol, oOptions )
	{
		var oCol = oSettings.aoColumns[ iCol ];
		var oClasses = oSettings.oClasses;
		var th = $(oCol.nTh);
	
		// Try to get width information from the DOM. We can't get it from CSS
		// as we'd need to parse the CSS stylesheet. `width` option can override
		if ( ! oCol.sWidthOrig ) {
			// Width attribute
			oCol.sWidthOrig = th.attr('width') || null;
	
			// Style attribute
			var t = (th.attr('style') || '').match(/width:\s*(\d+[pxem%]+)/);
			if ( t ) {
				oCol.sWidthOrig = t[1];
			}
		}
	
		/* User specified column options */
		if ( oOptions !== undefined && oOptions !== null )
		{
			// Backwards compatibility
			_fnCompatCols( oOptions );
	
			// Map camel case parameters to their Hungarian counterparts
			_fnCamelToHungarian( DataTable.defaults.column, oOptions, true );
	
			/* Backwards compatibility for mDataProp */
			if ( oOptions.mDataProp !== undefined && !oOptions.mData )
			{
				oOptions.mData = oOptions.mDataProp;
			}
	
			if ( oOptions.sType )
			{
				oCol._sManualType = oOptions.sType;
			}
	
			// `class` is a reserved word in Javascript, so we need to provide
			// the ability to use a valid name for the camel case input
			if ( oOptions.className && ! oOptions.sClass )
			{
				oOptions.sClass = oOptions.className;
			}
			if ( oOptions.sClass ) {
				th.addClass( oOptions.sClass );
			}
	
			$.extend( oCol, oOptions );
			_fnMap( oCol, oOptions, "sWidth", "sWidthOrig" );
	
			/* iDataSort to be applied (backwards compatibility), but aDataSort will take
			 * priority if defined
			 */
			if ( oOptions.iDataSort !== undefined )
			{
				oCol.aDataSort = [ oOptions.iDataSort ];
			}
			_fnMap( oCol, oOptions, "aDataSort" );
		}
	
		/* Cache the data get and set functions for speed */
		var mDataSrc = oCol.mData;
		var mData = _fnGetObjectDataFn( mDataSrc );
		var mRender = oCol.mRender ? _fnGetObjectDataFn( oCol.mRender ) : null;
	
		var attrTest = function( src ) {
			return typeof src === 'string' && src.indexOf('@') !== -1;
		};
		oCol._bAttrSrc = $.isPlainObject( mDataSrc ) && (
			attrTest(mDataSrc.sort) || attrTest(mDataSrc.type) || attrTest(mDataSrc.filter)
		);
		oCol._setter = null;
	
		oCol.fnGetData = function (rowData, type, meta) {
			var innerData = mData( rowData, type, undefined, meta );
	
			return mRender && type ?
				mRender( innerData, type, rowData, meta ) :
				innerData;
		};
		oCol.fnSetData = function ( rowData, val, meta ) {
			return _fnSetObjectDataFn( mDataSrc )( rowData, val, meta );
		};
	
		// Indicate if DataTables should read DOM data as an object or array
		// Used in _fnGetRowElements
		if ( typeof mDataSrc !== 'number' ) {
			oSettings._rowReadObject = true;
		}
	
		/* Feature sorting overrides column specific when off */
		if ( !oSettings.oFeatures.bSort )
		{
			oCol.bSortable = false;
			th.addClass( oClasses.sSortableNone ); // Have to add class here as order event isn't called
		}
	
		/* Check that the class assignment is correct for sorting */
		var bAsc = $.inArray('asc', oCol.asSorting) !== -1;
		var bDesc = $.inArray('desc', oCol.asSorting) !== -1;
		if ( !oCol.bSortable || (!bAsc && !bDesc) )
		{
			oCol.sSortingClass = oClasses.sSortableNone;
			oCol.sSortingClassJUI = "";
		}
		else if ( bAsc && !bDesc )
		{
			oCol.sSortingClass = oClasses.sSortableAsc;
			oCol.sSortingClassJUI = oClasses.sSortJUIAscAllowed;
		}
		else if ( !bAsc && bDesc )
		{
			oCol.sSortingClass = oClasses.sSortableDesc;
			oCol.sSortingClassJUI = oClasses.sSortJUIDescAllowed;
		}
		else
		{
			oCol.sSortingClass = oClasses.sSortable;
			oCol.sSortingClassJUI = oClasses.sSortJUI;
		}
	}
	
	
	/**
	 * Adjust the table column widths for new data. Note: you would probably want to
	 * do a redraw after calling this function!
	 *  @param {object} settings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnAdjustColumnSizing ( settings )
	{
		/* Not interested in doing column width calculation if auto-width is disabled */
		if ( settings.oFeatures.bAutoWidth !== false )
		{
			var columns = settings.aoColumns;
	
			_fnCalculateColumnWidths( settings );
			for ( var i=0 , iLen=columns.length ; i<iLen ; i++ )
			{
				columns[i].nTh.style.width = columns[i].sWidth;
			}
		}
	
		var scroll = settings.oScroll;
		if ( scroll.sY !== '' || scroll.sX !== '')
		{
			_fnScrollDraw( settings );
		}
	
		_fnCallbackFire( settings, null, 'column-sizing', [settings] );
	}
	
	
	/**
	 * Covert the index of a visible column to the index in the data array (take account
	 * of hidden columns)
	 *  @param {object} oSettings dataTables settings object
	 *  @param {int} iMatch Visible column index to lookup
	 *  @returns {int} i the data index
	 *  @memberof DataTable#oApi
	 */
	function _fnVisibleToColumnIndex( oSettings, iMatch )
	{
		var aiVis = _fnGetColumns( oSettings, 'bVisible' );
	
		return typeof aiVis[iMatch] === 'number' ?
			aiVis[iMatch] :
			null;
	}
	
	
	/**
	 * Covert the index of an index in the data array and convert it to the visible
	 *   column index (take account of hidden columns)
	 *  @param {int} iMatch Column index to lookup
	 *  @param {object} oSettings dataTables settings object
	 *  @returns {int} i the data index
	 *  @memberof DataTable#oApi
	 */
	function _fnColumnIndexToVisible( oSettings, iMatch )
	{
		var aiVis = _fnGetColumns( oSettings, 'bVisible' );
		var iPos = $.inArray( iMatch, aiVis );
	
		return iPos !== -1 ? iPos : null;
	}
	
	
	/**
	 * Get the number of visible columns
	 *  @param {object} oSettings dataTables settings object
	 *  @returns {int} i the number of visible columns
	 *  @memberof DataTable#oApi
	 */
	function _fnVisbleColumns( oSettings )
	{
		var vis = 0;
	
		// No reduce in IE8, use a loop for now
		$.each( oSettings.aoColumns, function ( i, col ) {
			if ( col.bVisible && $(col.nTh).css('display') !== 'none' ) {
				vis++;
			}
		} );
	
		return vis;
	}
	
	
	/**
	 * Get an array of column indexes that match a given property
	 *  @param {object} oSettings dataTables settings object
	 *  @param {string} sParam Parameter in aoColumns to look for - typically
	 *    bVisible or bSearchable
	 *  @returns {array} Array of indexes with matched properties
	 *  @memberof DataTable#oApi
	 */
	function _fnGetColumns( oSettings, sParam )
	{
		var a = [];
	
		$.map( oSettings.aoColumns, function(val, i) {
			if ( val[sParam] ) {
				a.push( i );
			}
		} );
	
		return a;
	}
	
	
	/**
	 * Calculate the 'type' of a column
	 *  @param {object} settings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnColumnTypes ( settings )
	{
		var columns = settings.aoColumns;
		var data = settings.aoData;
		var types = DataTable.ext.type.detect;
		var i, ien, j, jen, k, ken;
		var col, cell, detectedType, cache;
	
		// For each column, spin over the 
		for ( i=0, ien=columns.length ; i<ien ; i++ ) {
			col = columns[i];
			cache = [];
	
			if ( ! col.sType && col._sManualType ) {
				col.sType = col._sManualType;
			}
			else if ( ! col.sType ) {
				for ( j=0, jen=types.length ; j<jen ; j++ ) {
					for ( k=0, ken=data.length ; k<ken ; k++ ) {
						// Use a cache array so we only need to get the type data
						// from the formatter once (when using multiple detectors)
						if ( cache[k] === undefined ) {
							cache[k] = _fnGetCellData( settings, k, i, 'type' );
						}
	
						detectedType = types[j]( cache[k], settings );
	
						// If null, then this type can't apply to this column, so
						// rather than testing all cells, break out. There is an
						// exception for the last type which is `html`. We need to
						// scan all rows since it is possible to mix string and HTML
						// types
						if ( ! detectedType && j !== types.length-1 ) {
							break;
						}
	
						// Only a single match is needed for html type since it is
						// bottom of the pile and very similar to string - but it
						// must not be empty
						if ( detectedType === 'html' && ! _empty(cache[k]) ) {
							break;
						}
					}
	
					// Type is valid for all data points in the column - use this
					// type
					if ( detectedType ) {
						col.sType = detectedType;
						break;
					}
				}
	
				// Fall back - if no type was detected, always use string
				if ( ! col.sType ) {
					col.sType = 'string';
				}
			}
		}
	}
	
	
	/**
	 * Take the column definitions and static columns arrays and calculate how
	 * they relate to column indexes. The callback function will then apply the
	 * definition found for a column to a suitable configuration object.
	 *  @param {object} oSettings dataTables settings object
	 *  @param {array} aoColDefs The aoColumnDefs array that is to be applied
	 *  @param {array} aoCols The aoColumns array that defines columns individually
	 *  @param {function} fn Callback function - takes two parameters, the calculated
	 *    column index and the definition for that column.
	 *  @memberof DataTable#oApi
	 */
	function _fnApplyColumnDefs( oSettings, aoColDefs, aoCols, fn )
	{
		var i, iLen, j, jLen, k, kLen, def;
		var columns = oSettings.aoColumns;
	
		// Column definitions with aTargets
		if ( aoColDefs )
		{
			/* Loop over the definitions array - loop in reverse so first instance has priority */
			for ( i=aoColDefs.length-1 ; i>=0 ; i-- )
			{
				def = aoColDefs[i];
	
				/* Each definition can target multiple columns, as it is an array */
				var aTargets = def.targets !== undefined ?
					def.targets :
					def.aTargets;
	
				if ( ! Array.isArray( aTargets ) )
				{
					aTargets = [ aTargets ];
				}
	
				for ( j=0, jLen=aTargets.length ; j<jLen ; j++ )
				{
					if ( typeof aTargets[j] === 'number' && aTargets[j] >= 0 )
					{
						/* Add columns that we don't yet know about */
						while( columns.length <= aTargets[j] )
						{
							_fnAddColumn( oSettings );
						}
	
						/* Integer, basic index */
						fn( aTargets[j], def );
					}
					else if ( typeof aTargets[j] === 'number' && aTargets[j] < 0 )
					{
						/* Negative integer, right to left column counting */
						fn( columns.length+aTargets[j], def );
					}
					else if ( typeof aTargets[j] === 'string' )
					{
						/* Class name matching on TH element */
						for ( k=0, kLen=columns.length ; k<kLen ; k++ )
						{
							if ( aTargets[j] == "_all" ||
							     $(columns[k].nTh).hasClass( aTargets[j] ) )
							{
								fn( k, def );
							}
						}
					}
				}
			}
		}
	
		// Statically defined columns array
		if ( aoCols )
		{
			for ( i=0, iLen=aoCols.length ; i<iLen ; i++ )
			{
				fn( i, aoCols[i] );
			}
		}
	}
	
	/**
	 * Add a data array to the table, creating DOM node etc. This is the parallel to
	 * _fnGatherData, but for adding rows from a Javascript source, rather than a
	 * DOM source.
	 *  @param {object} oSettings dataTables settings object
	 *  @param {array} aData data array to be added
	 *  @param {node} [nTr] TR element to add to the table - optional. If not given,
	 *    DataTables will create a row automatically
	 *  @param {array} [anTds] Array of TD|TH elements for the row - must be given
	 *    if nTr is.
	 *  @returns {int} >=0 if successful (index of new aoData entry), -1 if failed
	 *  @memberof DataTable#oApi
	 */
	function _fnAddData ( oSettings, aDataIn, nTr, anTds )
	{
		/* Create the object for storing information about this new row */
		var iRow = oSettings.aoData.length;
		var oData = $.extend( true, {}, DataTable.models.oRow, {
			src: nTr ? 'dom' : 'data',
			idx: iRow
		} );
	
		oData._aData = aDataIn;
		oSettings.aoData.push( oData );
	
		/* Create the cells */
		var nTd, sThisType;
		var columns = oSettings.aoColumns;
	
		// Invalidate the column types as the new data needs to be revalidated
		for ( var i=0, iLen=columns.length ; i<iLen ; i++ )
		{
			columns[i].sType = null;
		}
	
		/* Add to the display array */
		oSettings.aiDisplayMaster.push( iRow );
	
		var id = oSettings.rowIdFn( aDataIn );
		if ( id !== undefined ) {
			oSettings.aIds[ id ] = oData;
		}
	
		/* Create the DOM information, or register it if already present */
		if ( nTr || ! oSettings.oFeatures.bDeferRender )
		{
			_fnCreateTr( oSettings, iRow, nTr, anTds );
		}
	
		return iRow;
	}
	
	
	/**
	 * Add one or more TR elements to the table. Generally we'd expect to
	 * use this for reading data from a DOM sourced table, but it could be
	 * used for an TR element. Note that if a TR is given, it is used (i.e.
	 * it is not cloned).
	 *  @param {object} settings dataTables settings object
	 *  @param {array|node|jQuery} trs The TR element(s) to add to the table
	 *  @returns {array} Array of indexes for the added rows
	 *  @memberof DataTable#oApi
	 */
	function _fnAddTr( settings, trs )
	{
		var row;
	
		// Allow an individual node to be passed in
		if ( ! (trs instanceof $) ) {
			trs = $(trs);
		}
	
		return trs.map( function (i, el) {
			row = _fnGetRowElements( settings, el );
			return _fnAddData( settings, row.data, el, row.cells );
		} );
	}
	
	
	/**
	 * Take a TR element and convert it to an index in aoData
	 *  @param {object} oSettings dataTables settings object
	 *  @param {node} n the TR element to find
	 *  @returns {int} index if the node is found, null if not
	 *  @memberof DataTable#oApi
	 */
	function _fnNodeToDataIndex( oSettings, n )
	{
		return (n._DT_RowIndex!==undefined) ? n._DT_RowIndex : null;
	}
	
	
	/**
	 * Take a TD element and convert it into a column data index (not the visible index)
	 *  @param {object} oSettings dataTables settings object
	 *  @param {int} iRow The row number the TD/TH can be found in
	 *  @param {node} n The TD/TH element to find
	 *  @returns {int} index if the node is found, -1 if not
	 *  @memberof DataTable#oApi
	 */
	function _fnNodeToColumnIndex( oSettings, iRow, n )
	{
		return $.inArray( n, oSettings.aoData[ iRow ].anCells );
	}
	
	
	/**
	 * Get the data for a given cell from the internal cache, taking into account data mapping
	 *  @param {object} settings dataTables settings object
	 *  @param {int} rowIdx aoData row id
	 *  @param {int} colIdx Column index
	 *  @param {string} type data get type ('display', 'type' 'filter' 'sort')
	 *  @returns {*} Cell data
	 *  @memberof DataTable#oApi
	 */
	function _fnGetCellData( settings, rowIdx, colIdx, type )
	{
		var draw           = settings.iDraw;
		var col            = settings.aoColumns[colIdx];
		var rowData        = settings.aoData[rowIdx]._aData;
		var defaultContent = col.sDefaultContent;
		var cellData       = col.fnGetData( rowData, type, {
			settings: settings,
			row:      rowIdx,
			col:      colIdx
		} );
	
		if ( cellData === undefined ) {
			if ( settings.iDrawError != draw && defaultContent === null ) {
				_fnLog( settings, 0, "Requested unknown parameter "+
					(typeof col.mData=='function' ? '{function}' : "'"+col.mData+"'")+
					" for row "+rowIdx+", column "+colIdx, 4 );
				settings.iDrawError = draw;
			}
			return defaultContent;
		}
	
		// When the data source is null and a specific data type is requested (i.e.
		// not the original data), we can use default column data
		if ( (cellData === rowData || cellData === null) && defaultContent !== null && type !== undefined ) {
			cellData = defaultContent;
		}
		else if ( typeof cellData === 'function' ) {
			// If the data source is a function, then we run it and use the return,
			// executing in the scope of the data object (for instances)
			return cellData.call( rowData );
		}
	
		if ( cellData === null && type == 'display' ) {
			return '';
		}
		return cellData;
	}
	
	
	/**
	 * Set the value for a specific cell, into the internal data cache
	 *  @param {object} settings dataTables settings object
	 *  @param {int} rowIdx aoData row id
	 *  @param {int} colIdx Column index
	 *  @param {*} val Value to set
	 *  @memberof DataTable#oApi
	 */
	function _fnSetCellData( settings, rowIdx, colIdx, val )
	{
		var col     = settings.aoColumns[colIdx];
		var rowData = settings.aoData[rowIdx]._aData;
	
		col.fnSetData( rowData, val, {
			settings: settings,
			row:      rowIdx,
			col:      colIdx
		}  );
	}
	
	
	// Private variable that is used to match action syntax in the data property object
	var __reArray = /\[.*?\]$/;
	var __reFn = /\(\)$/;
	
	/**
	 * Split string on periods, taking into account escaped periods
	 * @param  {string} str String to split
	 * @return {array} Split string
	 */
	function _fnSplitObjNotation( str )
	{
		return $.map( str.match(/(\\.|[^\.])+/g) || [''], function ( s ) {
			return s.replace(/\\\./g, '.');
		} );
	}
	
	
	/**
	 * Return a function that can be used to get data from a source object, taking
	 * into account the ability to use nested objects as a source
	 *  @param {string|int|function} mSource The data source for the object
	 *  @returns {function} Data get function
	 *  @memberof DataTable#oApi
	 */
	function _fnGetObjectDataFn( mSource )
	{
		if ( $.isPlainObject( mSource ) )
		{
			/* Build an object of get functions, and wrap them in a single call */
			var o = {};
			$.each( mSource, function (key, val) {
				if ( val ) {
					o[key] = _fnGetObjectDataFn( val );
				}
			} );
	
			return function (data, type, row, meta) {
				var t = o[type] || o._;
				return t !== undefined ?
					t(data, type, row, meta) :
					data;
			};
		}
		else if ( mSource === null )
		{
			/* Give an empty string for rendering / sorting etc */
			return function (data) { // type, row and meta also passed, but not used
				return data;
			};
		}
		else if ( typeof mSource === 'function' )
		{
			return function (data, type, row, meta) {
				return mSource( data, type, row, meta );
			};
		}
		else if ( typeof mSource === 'string' && (mSource.indexOf('.') !== -1 ||
			      mSource.indexOf('[') !== -1 || mSource.indexOf('(') !== -1) )
		{
			/* If there is a . in the source string then the data source is in a
			 * nested object so we loop over the data for each level to get the next
			 * level down. On each loop we test for undefined, and if found immediately
			 * return. This allows entire objects to be missing and sDefaultContent to
			 * be used if defined, rather than throwing an error
			 */
			var fetchData = function (data, type, src) {
				var arrayNotation, funcNotation, out, innerSrc;
	
				if ( src !== "" )
				{
					var a = _fnSplitObjNotation( src );
	
					for ( var i=0, iLen=a.length ; i<iLen ; i++ )
					{
						// Check if we are dealing with special notation
						arrayNotation = a[i].match(__reArray);
						funcNotation = a[i].match(__reFn);
	
						if ( arrayNotation )
						{
							// Array notation
							a[i] = a[i].replace(__reArray, '');
	
							// Condition allows simply [] to be passed in
							if ( a[i] !== "" ) {
								data = data[ a[i] ];
							}
							out = [];
	
							// Get the remainder of the nested object to get
							a.splice( 0, i+1 );
							innerSrc = a.join('.');
	
							// Traverse each entry in the array getting the properties requested
							if ( Array.isArray( data ) ) {
								for ( var j=0, jLen=data.length ; j<jLen ; j++ ) {
									out.push( fetchData( data[j], type, innerSrc ) );
								}
							}
	
							// If a string is given in between the array notation indicators, that
							// is used to join the strings together, otherwise an array is returned
							var join = arrayNotation[0].substring(1, arrayNotation[0].length-1);
							data = (join==="") ? out : out.join(join);
	
							// The inner call to fetchData has already traversed through the remainder
							// of the source requested, so we exit from the loop
							break;
						}
						else if ( funcNotation )
						{
							// Function call
							a[i] = a[i].replace(__reFn, '');
							data = data[ a[i] ]();
							continue;
						}
	
						if ( data === null || data[ a[i] ] === undefined )
						{
							return undefined;
						}
						data = data[ a[i] ];
					}
				}
	
				return data;
			};
	
			return function (data, type) { // row and meta also passed, but not used
				return fetchData( data, type, mSource );
			};
		}
		else
		{
			/* Array or flat object mapping */
			return function (data, type) { // row and meta also passed, but not used
				return data[mSource];
			};
		}
	}
	
	
	/**
	 * Return a function that can be used to set data from a source object, taking
	 * into account the ability to use nested objects as a source
	 *  @param {string|int|function} mSource The data source for the object
	 *  @returns {function} Data set function
	 *  @memberof DataTable#oApi
	 */
	function _fnSetObjectDataFn( mSource )
	{
		if ( $.isPlainObject( mSource ) )
		{
			/* Unlike get, only the underscore (global) option is used for for
			 * setting data since we don't know the type here. This is why an object
			 * option is not documented for `mData` (which is read/write), but it is
			 * for `mRender` which is read only.
			 */
			return _fnSetObjectDataFn( mSource._ );
		}
		else if ( mSource === null )
		{
			/* Nothing to do when the data source is null */
			return function () {};
		}
		else if ( typeof mSource === 'function' )
		{
			return function (data, val, meta) {
				mSource( data, 'set', val, meta );
			};
		}
		else if ( typeof mSource === 'string' && (mSource.indexOf('.') !== -1 ||
			      mSource.indexOf('[') !== -1 || mSource.indexOf('(') !== -1) )
		{
			/* Like the get, we need to get data from a nested object */
			var setData = function (data, val, src) {
				var a = _fnSplitObjNotation( src ), b;
				var aLast = a[a.length-1];
				var arrayNotation, funcNotation, o, innerSrc;
	
				for ( var i=0, iLen=a.length-1 ; i<iLen ; i++ )
				{
					// Protect against prototype pollution
					if (a[i] === '__proto__' || a[i] === 'constructor') {
						throw new Error('Cannot set prototype values');
					}
	
					// Check if we are dealing with an array notation request
					arrayNotation = a[i].match(__reArray);
					funcNotation = a[i].match(__reFn);
	
					if ( arrayNotation )
					{
						a[i] = a[i].replace(__reArray, '');
						data[ a[i] ] = [];
	
						// Get the remainder of the nested object to set so we can recurse
						b = a.slice();
						b.splice( 0, i+1 );
						innerSrc = b.join('.');
	
						// Traverse each entry in the array setting the properties requested
						if ( Array.isArray( val ) )
						{
							for ( var j=0, jLen=val.length ; j<jLen ; j++ )
							{
								o = {};
								setData( o, val[j], innerSrc );
								data[ a[i] ].push( o );
							}
						}
						else
						{
							// We've been asked to save data to an array, but it
							// isn't array data to be saved. Best that can be done
							// is to just save the value.
							data[ a[i] ] = val;
						}
	
						// The inner call to setData has already traversed through the remainder
						// of the source and has set the data, thus we can exit here
						return;
					}
					else if ( funcNotation )
					{
						// Function call
						a[i] = a[i].replace(__reFn, '');
						data = data[ a[i] ]( val );
					}
	
					// If the nested object doesn't currently exist - since we are
					// trying to set the value - create it
					if ( data[ a[i] ] === null || data[ a[i] ] === undefined )
					{
						data[ a[i] ] = {};
					}
					data = data[ a[i] ];
				}
	
				// Last item in the input - i.e, the actual set
				if ( aLast.match(__reFn ) )
				{
					// Function call
					data = data[ aLast.replace(__reFn, '') ]( val );
				}
				else
				{
					// If array notation is used, we just want to strip it and use the property name
					// and assign the value. If it isn't used, then we get the result we want anyway
					data[ aLast.replace(__reArray, '') ] = val;
				}
			};
	
			return function (data, val) { // meta is also passed in, but not used
				return setData( data, val, mSource );
			};
		}
		else
		{
			/* Array or flat object mapping */
			return function (data, val) { // meta is also passed in, but not used
				data[mSource] = val;
			};
		}
	}
	
	
	/**
	 * Return an array with the full table data
	 *  @param {object} oSettings dataTables settings object
	 *  @returns array {array} aData Master data array
	 *  @memberof DataTable#oApi
	 */
	function _fnGetDataMaster ( settings )
	{
		return _pluck( settings.aoData, '_aData' );
	}
	
	
	/**
	 * Nuke the table
	 *  @param {object} oSettings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnClearTable( settings )
	{
		settings.aoData.length = 0;
		settings.aiDisplayMaster.length = 0;
		settings.aiDisplay.length = 0;
		settings.aIds = {};
	}
	
	
	 /**
	 * Take an array of integers (index array) and remove a target integer (value - not
	 * the key!)
	 *  @param {array} a Index array to target
	 *  @param {int} iTarget value to find
	 *  @memberof DataTable#oApi
	 */
	function _fnDeleteIndex( a, iTarget, splice )
	{
		var iTargetIndex = -1;
	
		for ( var i=0, iLen=a.length ; i<iLen ; i++ )
		{
			if ( a[i] == iTarget )
			{
				iTargetIndex = i;
			}
			else if ( a[i] > iTarget )
			{
				a[i]--;
			}
		}
	
		if ( iTargetIndex != -1 && splice === undefined )
		{
			a.splice( iTargetIndex, 1 );
		}
	}
	
	
	/**
	 * Mark cached data as invalid such that a re-read of the data will occur when
	 * the cached data is next requested. Also update from the data source object.
	 *
	 * @param {object} settings DataTables settings object
	 * @param {int}    rowIdx   Row index to invalidate
	 * @param {string} [src]    Source to invalidate from: undefined, 'auto', 'dom'
	 *     or 'data'
	 * @param {int}    [colIdx] Column index to invalidate. If undefined the whole
	 *     row will be invalidated
	 * @memberof DataTable#oApi
	 *
	 * @todo For the modularisation of v1.11 this will need to become a callback, so
	 *   the sort and filter methods can subscribe to it. That will required
	 *   initialisation options for sorting, which is why it is not already baked in
	 */
	function _fnInvalidate( settings, rowIdx, src, colIdx )
	{
		var row = settings.aoData[ rowIdx ];
		var i, ien;
		var cellWrite = function ( cell, col ) {
			// This is very frustrating, but in IE if you just write directly
			// to innerHTML, and elements that are overwritten are GC'ed,
			// even if there is a reference to them elsewhere
			while ( cell.childNodes.length ) {
				cell.removeChild( cell.firstChild );
			}
	
			cell.innerHTML = _fnGetCellData( settings, rowIdx, col, 'display' );
		};
	
		// Are we reading last data from DOM or the data object?
		if ( src === 'dom' || ((! src || src === 'auto') && row.src === 'dom') ) {
			// Read the data from the DOM
			row._aData = _fnGetRowElements(
					settings, row, colIdx, colIdx === undefined ? undefined : row._aData
				)
				.data;
		}
		else {
			// Reading from data object, update the DOM
			var cells = row.anCells;
	
			if ( cells ) {
				if ( colIdx !== undefined ) {
					cellWrite( cells[colIdx], colIdx );
				}
				else {
					for ( i=0, ien=cells.length ; i<ien ; i++ ) {
						cellWrite( cells[i], i );
					}
				}
			}
		}
	
		// For both row and cell invalidation, the cached data for sorting and
		// filtering is nulled out
		row._aSortData = null;
		row._aFilterData = null;
	
		// Invalidate the type for a specific column (if given) or all columns since
		// the data might have changed
		var cols = settings.aoColumns;
		if ( colIdx !== undefined ) {
			cols[ colIdx ].sType = null;
		}
		else {
			for ( i=0, ien=cols.length ; i<ien ; i++ ) {
				cols[i].sType = null;
			}
	
			// Update DataTables special `DT_*` attributes for the row
			_fnRowAttributes( settings, row );
		}
	}
	
	
	/**
	 * Build a data source object from an HTML row, reading the contents of the
	 * cells that are in the row.
	 *
	 * @param {object} settings DataTables settings object
	 * @param {node|object} TR element from which to read data or existing row
	 *   object from which to re-read the data from the cells
	 * @param {int} [colIdx] Optional column index
	 * @param {array|object} [d] Data source object. If `colIdx` is given then this
	 *   parameter should also be given and will be used to write the data into.
	 *   Only the column in question will be written
	 * @returns {object} Object with two parameters: `data` the data read, in
	 *   document order, and `cells` and array of nodes (they can be useful to the
	 *   caller, so rather than needing a second traversal to get them, just return
	 *   them from here).
	 * @memberof DataTable#oApi
	 */
	function _fnGetRowElements( settings, row, colIdx, d )
	{
		var
			tds = [],
			td = row.firstChild,
			name, col, o, i=0, contents,
			columns = settings.aoColumns,
			objectRead = settings._rowReadObject;
	
		// Allow the data object to be passed in, or construct
		d = d !== undefined ?
			d :
			objectRead ?
				{} :
				[];
	
		var attr = function ( str, td  ) {
			if ( typeof str === 'string' ) {
				var idx = str.indexOf('@');
	
				if ( idx !== -1 ) {
					var attr = str.substring( idx+1 );
					var setter = _fnSetObjectDataFn( str );
					setter( d, td.getAttribute( attr ) );
				}
			}
		};
	
		// Read data from a cell and store into the data object
		var cellProcess = function ( cell ) {
			if ( colIdx === undefined || colIdx === i ) {
				col = columns[i];
				contents = (cell.innerHTML).trim();
	
				if ( col && col._bAttrSrc ) {
					var setter = _fnSetObjectDataFn( col.mData._ );
					setter( d, contents );
	
					attr( col.mData.sort, cell );
					attr( col.mData.type, cell );
					attr( col.mData.filter, cell );
				}
				else {
					// Depending on the `data` option for the columns the data can
					// be read to either an object or an array.
					if ( objectRead ) {
						if ( ! col._setter ) {
							// Cache the setter function
							col._setter = _fnSetObjectDataFn( col.mData );
						}
						col._setter( d, contents );
					}
					else {
						d[i] = contents;
					}
				}
			}
	
			i++;
		};
	
		if ( td ) {
			// `tr` element was passed in
			while ( td ) {
				name = td.nodeName.toUpperCase();
	
				if ( name == "TD" || name == "TH" ) {
					cellProcess( td );
					tds.push( td );
				}
	
				td = td.nextSibling;
			}
		}
		else {
			// Existing row object passed in
			tds = row.anCells;
	
			for ( var j=0, jen=tds.length ; j<jen ; j++ ) {
				cellProcess( tds[j] );
			}
		}
	
		// Read the ID from the DOM if present
		var rowNode = row.firstChild ? row : row.nTr;
	
		if ( rowNode ) {
			var id = rowNode.getAttribute( 'id' );
	
			if ( id ) {
				_fnSetObjectDataFn( settings.rowId )( d, id );
			}
		}
	
		return {
			data: d,
			cells: tds
		};
	}
	/**
	 * Create a new TR element (and it's TD children) for a row
	 *  @param {object} oSettings dataTables settings object
	 *  @param {int} iRow Row to consider
	 *  @param {node} [nTrIn] TR element to add to the table - optional. If not given,
	 *    DataTables will create a row automatically
	 *  @param {array} [anTds] Array of TD|TH elements for the row - must be given
	 *    if nTr is.
	 *  @memberof DataTable#oApi
	 */
	function _fnCreateTr ( oSettings, iRow, nTrIn, anTds )
	{
		var
			row = oSettings.aoData[iRow],
			rowData = row._aData,
			cells = [],
			nTr, nTd, oCol,
			i, iLen, create;
	
		if ( row.nTr === null )
		{
			nTr = nTrIn || document.createElement('tr');
	
			row.nTr = nTr;
			row.anCells = cells;
	
			/* Use a private property on the node to allow reserve mapping from the node
			 * to the aoData array for fast look up
			 */
			nTr._DT_RowIndex = iRow;
	
			/* Special parameters can be given by the data source to be used on the row */
			_fnRowAttributes( oSettings, row );
	
			/* Process each column */
			for ( i=0, iLen=oSettings.aoColumns.length ; i<iLen ; i++ )
			{
				oCol = oSettings.aoColumns[i];
				create = nTrIn ? false : true;
	
				nTd = create ? document.createElement( oCol.sCellType ) : anTds[i];
				nTd._DT_CellIndex = {
					row: iRow,
					column: i
				};
				
				cells.push( nTd );
	
				// Need to create the HTML if new, or if a rendering function is defined
				if ( create || ((oCol.mRender || oCol.mData !== i) &&
					 (!$.isPlainObject(oCol.mData) || oCol.mData._ !== i+'.display')
				)) {
					nTd.innerHTML = _fnGetCellData( oSettings, iRow, i, 'display' );
				}
	
				/* Add user defined class */
				if ( oCol.sClass )
				{
					nTd.className += ' '+oCol.sClass;
				}
	
				// Visibility - add or remove as required
				if ( oCol.bVisible && ! nTrIn )
				{
					nTr.appendChild( nTd );
				}
				else if ( ! oCol.bVisible && nTrIn )
				{
					nTd.parentNode.removeChild( nTd );
				}
	
				if ( oCol.fnCreatedCell )
				{
					oCol.fnCreatedCell.call( oSettings.oInstance,
						nTd, _fnGetCellData( oSettings, iRow, i ), rowData, iRow, i
					);
				}
			}
	
			_fnCallbackFire( oSettings, 'aoRowCreatedCallback', null, [nTr, rowData, iRow, cells] );
		}
	}
	
	
	/**
	 * Add attributes to a row based on the special `DT_*` parameters in a data
	 * source object.
	 *  @param {object} settings DataTables settings object
	 *  @param {object} DataTables row object for the row to be modified
	 *  @memberof DataTable#oApi
	 */
	function _fnRowAttributes( settings, row )
	{
		var tr = row.nTr;
		var data = row._aData;
	
		if ( tr ) {
			var id = settings.rowIdFn( data );
	
			if ( id ) {
				tr.id = id;
			}
	
			if ( data.DT_RowClass ) {
				// Remove any classes added by DT_RowClass before
				var a = data.DT_RowClass.split(' ');
				row.__rowc = row.__rowc ?
					_unique( row.__rowc.concat( a ) ) :
					a;
	
				$(tr)
					.removeClass( row.__rowc.join(' ') )
					.addClass( data.DT_RowClass );
			}
	
			if ( data.DT_RowAttr ) {
				$(tr).attr( data.DT_RowAttr );
			}
	
			if ( data.DT_RowData ) {
				$(tr).data( data.DT_RowData );
			}
		}
	}
	
	
	/**
	 * Create the HTML header for the table
	 *  @param {object} oSettings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnBuildHead( oSettings )
	{
		var i, ien, cell, row, column;
		var thead = oSettings.nTHead;
		var tfoot = oSettings.nTFoot;
		var createHeader = $('th, td', thead).length === 0;
		var classes = oSettings.oClasses;
		var columns = oSettings.aoColumns;
	
		if ( createHeader ) {
			row = $('<tr/>').appendTo( thead );
		}
	
		for ( i=0, ien=columns.length ; i<ien ; i++ ) {
			column = columns[i];
			cell = $( column.nTh ).addClass( column.sClass );
	
			if ( createHeader ) {
				cell.appendTo( row );
			}
	
			// 1.11 move into sorting
			if ( oSettings.oFeatures.bSort ) {
				cell.addClass( column.sSortingClass );
	
				if ( column.bSortable !== false ) {
					cell
						.attr( 'tabindex', oSettings.iTabIndex )
						.attr( 'aria-controls', oSettings.sTableId );
	
					_fnSortAttachListener( oSettings, column.nTh, i );
				}
			}
	
			if ( column.sTitle != cell[0].innerHTML ) {
				cell.html( column.sTitle );
			}
	
			_fnRenderer( oSettings, 'header' )(
				oSettings, cell, column, classes
			);
		}
	
		if ( createHeader ) {
			_fnDetectHeader( oSettings.aoHeader, thead );
		}
		
		/* ARIA role for the rows */
		$(thead).children('tr').attr('role', 'row');
	
		/* Deal with the footer - add classes if required */
		$(thead).children('tr').children('th, td').addClass( classes.sHeaderTH );
		$(tfoot).children('tr').children('th, td').addClass( classes.sFooterTH );
	
		// Cache the footer cells. Note that we only take the cells from the first
		// row in the footer. If there is more than one row the user wants to
		// interact with, they need to use the table().foot() method. Note also this
		// allows cells to be used for multiple columns using colspan
		if ( tfoot !== null ) {
			var cells = oSettings.aoFooter[0];
	
			for ( i=0, ien=cells.length ; i<ien ; i++ ) {
				column = columns[i];
				column.nTf = cells[i].cell;
	
				if ( column.sClass ) {
					$(column.nTf).addClass( column.sClass );
				}
			}
		}
	}
	
	
	/**
	 * Draw the header (or footer) element based on the column visibility states. The
	 * methodology here is to use the layout array from _fnDetectHeader, modified for
	 * the instantaneous column visibility, to construct the new layout. The grid is
	 * traversed over cell at a time in a rows x columns grid fashion, although each
	 * cell insert can cover multiple elements in the grid - which is tracks using the
	 * aApplied array. Cell inserts in the grid will only occur where there isn't
	 * already a cell in that position.
	 *  @param {object} oSettings dataTables settings object
	 *  @param array {objects} aoSource Layout array from _fnDetectHeader
	 *  @param {boolean} [bIncludeHidden=false] If true then include the hidden columns in the calc,
	 *  @memberof DataTable#oApi
	 */
	function _fnDrawHead( oSettings, aoSource, bIncludeHidden )
	{
		var i, iLen, j, jLen, k, kLen, n, nLocalTr;
		var aoLocal = [];
		var aApplied = [];
		var iColumns = oSettings.aoColumns.length;
		var iRowspan, iColspan;
	
		if ( ! aoSource )
		{
			return;
		}
	
		if (  bIncludeHidden === undefined )
		{
			bIncludeHidden = false;
		}
	
		/* Make a copy of the master layout array, but without the visible columns in it */
		for ( i=0, iLen=aoSource.length ; i<iLen ; i++ )
		{
			aoLocal[i] = aoSource[i].slice();
			aoLocal[i].nTr = aoSource[i].nTr;
	
			/* Remove any columns which are currently hidden */
			for ( j=iColumns-1 ; j>=0 ; j-- )
			{
				if ( !oSettings.aoColumns[j].bVisible && !bIncludeHidden )
				{
					aoLocal[i].splice( j, 1 );
				}
			}
	
			/* Prep the applied array - it needs an element for each row */
			aApplied.push( [] );
		}
	
		for ( i=0, iLen=aoLocal.length ; i<iLen ; i++ )
		{
			nLocalTr = aoLocal[i].nTr;
	
			/* All cells are going to be replaced, so empty out the row */
			if ( nLocalTr )
			{
				while( (n = nLocalTr.firstChild) )
				{
					nLocalTr.removeChild( n );
				}
			}
	
			for ( j=0, jLen=aoLocal[i].length ; j<jLen ; j++ )
			{
				iRowspan = 1;
				iColspan = 1;
	
				/* Check to see if there is already a cell (row/colspan) covering our target
				 * insert point. If there is, then there is nothing to do.
				 */
				if ( aApplied[i][j] === undefined )
				{
					nLocalTr.appendChild( aoLocal[i][j].cell );
					aApplied[i][j] = 1;
	
					/* Expand the cell to cover as many rows as needed */
					while ( aoLocal[i+iRowspan] !== undefined &&
					        aoLocal[i][j].cell == aoLocal[i+iRowspan][j].cell )
					{
						aApplied[i+iRowspan][j] = 1;
						iRowspan++;
					}
	
					/* Expand the cell to cover as many columns as needed */
					while ( aoLocal[i][j+iColspan] !== undefined &&
					        aoLocal[i][j].cell == aoLocal[i][j+iColspan].cell )
					{
						/* Must update the applied array over the rows for the columns */
						for ( k=0 ; k<iRowspan ; k++ )
						{
							aApplied[i+k][j+iColspan] = 1;
						}
						iColspan++;
					}
	
					/* Do the actual expansion in the DOM */
					$(aoLocal[i][j].cell)
						.attr('rowspan', iRowspan)
						.attr('colspan', iColspan);
				}
			}
		}
	}
	
	
	/**
	 * Insert the required TR nodes into the table for display
	 *  @param {object} oSettings dataTables settings object
	 *  @param ajaxComplete true after ajax call to complete rendering
	 *  @memberof DataTable#oApi
	 */
	function _fnDraw( oSettings, ajaxComplete )
	{
		/* Provide a pre-callback function which can be used to cancel the draw is false is returned */
		var aPreDraw = _fnCallbackFire( oSettings, 'aoPreDrawCallback', 'preDraw', [oSettings] );
		if ( $.inArray( false, aPreDraw ) !== -1 )
		{
			_fnProcessingDisplay( oSettings, false );
			return;
		}
	
		var i, iLen, n;
		var anRows = [];
		var iRowCount = 0;
		var asStripeClasses = oSettings.asStripeClasses;
		var iStripes = asStripeClasses.length;
		var iOpenRows = oSettings.aoOpenRows.length;
		var oLang = oSettings.oLanguage;
		var iInitDisplayStart = oSettings.iInitDisplayStart;
		var bServerSide = _fnDataSource( oSettings ) == 'ssp';
		var aiDisplay = oSettings.aiDisplay;
	
		oSettings.bDrawing = true;
	
		/* Check and see if we have an initial draw position from state saving */
		if ( iInitDisplayStart !== undefined && iInitDisplayStart !== -1 )
		{
			oSettings._iDisplayStart = bServerSide ?
				iInitDisplayStart :
				iInitDisplayStart >= oSettings.fnRecordsDisplay() ?
					0 :
					iInitDisplayStart;
	
			oSettings.iInitDisplayStart = -1;
		}
	
		var iDisplayStart = oSettings._iDisplayStart;
		var iDisplayEnd = oSettings.fnDisplayEnd();
	
		/* Server-side processing draw intercept */
		if ( oSettings.bDeferLoading )
		{
			oSettings.bDeferLoading = false;
			oSettings.iDraw++;
			_fnProcessingDisplay( oSettings, false );
		}
		else if ( !bServerSide )
		{
			oSettings.iDraw++;
		}
		else if ( !oSettings.bDestroying && !ajaxComplete)
		{
			_fnAjaxUpdate( oSettings );
			return;
		}
	
		if ( aiDisplay.length !== 0 )
		{
			var iStart = bServerSide ? 0 : iDisplayStart;
			var iEnd = bServerSide ? oSettings.aoData.length : iDisplayEnd;
	
			for ( var j=iStart ; j<iEnd ; j++ )
			{
				var iDataIndex = aiDisplay[j];
				var aoData = oSettings.aoData[ iDataIndex ];
				if ( aoData.nTr === null )
				{
					_fnCreateTr( oSettings, iDataIndex );
				}
	
				var nRow = aoData.nTr;
	
				/* Remove the old striping classes and then add the new one */
				if ( iStripes !== 0 )
				{
					var sStripe = asStripeClasses[ iRowCount % iStripes ];
					if ( aoData._sRowStripe != sStripe )
					{
						$(nRow).removeClass( aoData._sRowStripe ).addClass( sStripe );
						aoData._sRowStripe = sStripe;
					}
				}
	
				// Row callback functions - might want to manipulate the row
				// iRowCount and j are not currently documented. Are they at all
				// useful?
				_fnCallbackFire( oSettings, 'aoRowCallback', null,
					[nRow, aoData._aData, iRowCount, j, iDataIndex] );
	
				anRows.push( nRow );
				iRowCount++;
			}
		}
		else
		{
			/* Table is empty - create a row with an empty message in it */
			var sZero = oLang.sZeroRecords;
			if ( oSettings.iDraw == 1 &&  _fnDataSource( oSettings ) == 'ajax' )
			{
				sZero = oLang.sLoadingRecords;
			}
			else if ( oLang.sEmptyTable && oSettings.fnRecordsTotal() === 0 )
			{
				sZero = oLang.sEmptyTable;
			}
	
			anRows[ 0 ] = $( '<tr/>', { 'class': iStripes ? asStripeClasses[0] : '' } )
				.append( $('<td />', {
					'valign':  'top',
					'colSpan': _fnVisbleColumns( oSettings ),
					'class':   oSettings.oClasses.sRowEmpty
				} ).html( sZero ) )[0];
		}
	
		/* Header and footer callbacks */
		_fnCallbackFire( oSettings, 'aoHeaderCallback', 'header', [ $(oSettings.nTHead).children('tr')[0],
			_fnGetDataMaster( oSettings ), iDisplayStart, iDisplayEnd, aiDisplay ] );
	
		_fnCallbackFire( oSettings, 'aoFooterCallback', 'footer', [ $(oSettings.nTFoot).children('tr')[0],
			_fnGetDataMaster( oSettings ), iDisplayStart, iDisplayEnd, aiDisplay ] );
	
		var body = $(oSettings.nTBody);
	
		body.children().detach();
		body.append( $(anRows) );
	
		/* Call all required callback functions for the end of a draw */
		_fnCallbackFire( oSettings, 'aoDrawCallback', 'draw', [oSettings] );
	
		/* Draw is complete, sorting and filtering must be as well */
		oSettings.bSorted = false;
		oSettings.bFiltered = false;
		oSettings.bDrawing = false;
	}
	
	
	/**
	 * Redraw the table - taking account of the various features which are enabled
	 *  @param {object} oSettings dataTables settings object
	 *  @param {boolean} [holdPosition] Keep the current paging position. By default
	 *    the paging is reset to the first page
	 *  @memberof DataTable#oApi
	 */
	function _fnReDraw( settings, holdPosition )
	{
		var
			features = settings.oFeatures,
			sort     = features.bSort,
			filter   = features.bFilter;
	
		if ( sort ) {
			_fnSort( settings );
		}
	
		if ( filter ) {
			_fnFilterComplete( settings, settings.oPreviousSearch );
		}
		else {
			// No filtering, so we want to just use the display master
			settings.aiDisplay = settings.aiDisplayMaster.slice();
		}
	
		if ( holdPosition !== true ) {
			settings._iDisplayStart = 0;
		}
	
		// Let any modules know about the draw hold position state (used by
		// scrolling internally)
		settings._drawHold = holdPosition;
	
		_fnDraw( settings );
	
		settings._drawHold = false;
	}
	
	
	/**
	 * Add the options to the page HTML for the table
	 *  @param {object} oSettings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnAddOptionsHtml ( oSettings )
	{
		var classes = oSettings.oClasses;
		var table = $(oSettings.nTable);
		var holding = $('<div/>').insertBefore( table ); // Holding element for speed
		var features = oSettings.oFeatures;
	
		// All DataTables are wrapped in a div
		var insert = $('<div/>', {
			id:      oSettings.sTableId+'_wrapper',
			'class': classes.sWrapper + (oSettings.nTFoot ? '' : ' '+classes.sNoFooter)
		} );
	
		oSettings.nHolding = holding[0];
		oSettings.nTableWrapper = insert[0];
		oSettings.nTableReinsertBefore = oSettings.nTable.nextSibling;
	
		/* Loop over the user set positioning and place the elements as needed */
		var aDom = oSettings.sDom.split('');
		var featureNode, cOption, nNewNode, cNext, sAttr, j;
		for ( var i=0 ; i<aDom.length ; i++ )
		{
			featureNode = null;
			cOption = aDom[i];
	
			if ( cOption == '<' )
			{
				/* New container div */
				nNewNode = $('<div/>')[0];
	
				/* Check to see if we should append an id and/or a class name to the container */
				cNext = aDom[i+1];
				if ( cNext == "'" || cNext == '"' )
				{
					sAttr = "";
					j = 2;
					while ( aDom[i+j] != cNext )
					{
						sAttr += aDom[i+j];
						j++;
					}
	
					/* Replace jQuery UI constants @todo depreciated */
					if ( sAttr == "H" )
					{
						sAttr = classes.sJUIHeader;
					}
					else if ( sAttr == "F" )
					{
						sAttr = classes.sJUIFooter;
					}
	
					/* The attribute can be in the format of "#id.class", "#id" or "class" This logic
					 * breaks the string into parts and applies them as needed
					 */
					if ( sAttr.indexOf('.') != -1 )
					{
						var aSplit = sAttr.split('.');
						nNewNode.id = aSplit[0].substr(1, aSplit[0].length-1);
						nNewNode.className = aSplit[1];
					}
					else if ( sAttr.charAt(0) == "#" )
					{
						nNewNode.id = sAttr.substr(1, sAttr.length-1);
					}
					else
					{
						nNewNode.className = sAttr;
					}
	
					i += j; /* Move along the position array */
				}
	
				insert.append( nNewNode );
				insert = $(nNewNode);
			}
			else if ( cOption == '>' )
			{
				/* End container div */
				insert = insert.parent();
			}
			// @todo Move options into their own plugins?
			else if ( cOption == 'l' && features.bPaginate && features.bLengthChange )
			{
				/* Length */
				featureNode = _fnFeatureHtmlLength( oSettings );
			}
			else if ( cOption == 'f' && features.bFilter )
			{
				/* Filter */
				featureNode = _fnFeatureHtmlFilter( oSettings );
			}
			else if ( cOption == 'r' && features.bProcessing )
			{
				/* pRocessing */
				featureNode = _fnFeatureHtmlProcessing( oSettings );
			}
			else if ( cOption == 't' )
			{
				/* Table */
				featureNode = _fnFeatureHtmlTable( oSettings );
			}
			else if ( cOption ==  'i' && features.bInfo )
			{
				/* Info */
				featureNode = _fnFeatureHtmlInfo( oSettings );
			}
			else if ( cOption == 'p' && features.bPaginate )
			{
				/* Pagination */
				featureNode = _fnFeatureHtmlPaginate( oSettings );
			}
			else if ( DataTable.ext.feature.length !== 0 )
			{
				/* Plug-in features */
				var aoFeatures = DataTable.ext.feature;
				for ( var k=0, kLen=aoFeatures.length ; k<kLen ; k++ )
				{
					if ( cOption == aoFeatures[k].cFeature )
					{
						featureNode = aoFeatures[k].fnInit( oSettings );
						break;
					}
				}
			}
	
			/* Add to the 2D features array */
			if ( featureNode )
			{
				var aanFeatures = oSettings.aanFeatures;
	
				if ( ! aanFeatures[cOption] )
				{
					aanFeatures[cOption] = [];
				}
	
				aanFeatures[cOption].push( featureNode );
				insert.append( featureNode );
			}
		}
	
		/* Built our DOM structure - replace the holding div with what we want */
		holding.replaceWith( insert );
		oSettings.nHolding = null;
	}
	
	
	/**
	 * Use the DOM source to create up an array of header cells. The idea here is to
	 * create a layout grid (array) of rows x columns, which contains a reference
	 * to the cell that that point in the grid (regardless of col/rowspan), such that
	 * any column / row could be removed and the new grid constructed
	 *  @param array {object} aLayout Array to store the calculated layout in
	 *  @param {node} nThead The header/footer element for the table
	 *  @memberof DataTable#oApi
	 */
	function _fnDetectHeader ( aLayout, nThead )
	{
		var nTrs = $(nThead).children('tr');
		var nTr, nCell;
		var i, k, l, iLen, jLen, iColShifted, iColumn, iColspan, iRowspan;
		var bUnique;
		var fnShiftCol = function ( a, i, j ) {
			var k = a[i];
	                while ( k[j] ) {
				j++;
			}
			return j;
		};
	
		aLayout.splice( 0, aLayout.length );
	
		/* We know how many rows there are in the layout - so prep it */
		for ( i=0, iLen=nTrs.length ; i<iLen ; i++ )
		{
			aLayout.push( [] );
		}
	
		/* Calculate a layout array */
		for ( i=0, iLen=nTrs.length ; i<iLen ; i++ )
		{
			nTr = nTrs[i];
			iColumn = 0;
	
			/* For every cell in the row... */
			nCell = nTr.firstChild;
			while ( nCell ) {
				if ( nCell.nodeName.toUpperCase() == "TD" ||
				     nCell.nodeName.toUpperCase() == "TH" )
				{
					/* Get the col and rowspan attributes from the DOM and sanitise them */
					iColspan = nCell.getAttribute('colspan') * 1;
					iRowspan = nCell.getAttribute('rowspan') * 1;
					iColspan = (!iColspan || iColspan===0 || iColspan===1) ? 1 : iColspan;
					iRowspan = (!iRowspan || iRowspan===0 || iRowspan===1) ? 1 : iRowspan;
	
					/* There might be colspan cells already in this row, so shift our target
					 * accordingly
					 */
					iColShifted = fnShiftCol( aLayout, i, iColumn );
	
					/* Cache calculation for unique columns */
					bUnique = iColspan === 1 ? true : false;
	
					/* If there is col / rowspan, copy the information into the layout grid */
					for ( l=0 ; l<iColspan ; l++ )
					{
						for ( k=0 ; k<iRowspan ; k++ )
						{
							aLayout[i+k][iColShifted+l] = {
								"cell": nCell,
								"unique": bUnique
							};
							aLayout[i+k].nTr = nTr;
						}
					}
				}
				nCell = nCell.nextSibling;
			}
		}
	}
	
	
	/**
	 * Get an array of unique th elements, one for each column
	 *  @param {object} oSettings dataTables settings object
	 *  @param {node} nHeader automatically detect the layout from this node - optional
	 *  @param {array} aLayout thead/tfoot layout from _fnDetectHeader - optional
	 *  @returns array {node} aReturn list of unique th's
	 *  @memberof DataTable#oApi
	 */
	function _fnGetUniqueThs ( oSettings, nHeader, aLayout )
	{
		var aReturn = [];
		if ( !aLayout )
		{
			aLayout = oSettings.aoHeader;
			if ( nHeader )
			{
				aLayout = [];
				_fnDetectHeader( aLayout, nHeader );
			}
		}
	
		for ( var i=0, iLen=aLayout.length ; i<iLen ; i++ )
		{
			for ( var j=0, jLen=aLayout[i].length ; j<jLen ; j++ )
			{
				if ( aLayout[i][j].unique &&
					 (!aReturn[j] || !oSettings.bSortCellsTop) )
				{
					aReturn[j] = aLayout[i][j].cell;
				}
			}
		}
	
		return aReturn;
	}
	
	/**
	 * Create an Ajax call based on the table's settings, taking into account that
	 * parameters can have multiple forms, and backwards compatibility.
	 *
	 * @param {object} oSettings dataTables settings object
	 * @param {array} data Data to send to the server, required by
	 *     DataTables - may be augmented by developer callbacks
	 * @param {function} fn Callback function to run when data is obtained
	 */
	function _fnBuildAjax( oSettings, data, fn )
	{
		// Compatibility with 1.9-, allow fnServerData and event to manipulate
		_fnCallbackFire( oSettings, 'aoServerParams', 'serverParams', [data] );
	
		// Convert to object based for 1.10+ if using the old array scheme which can
		// come from server-side processing or serverParams
		if ( data && Array.isArray(data) ) {
			var tmp = {};
			var rbracket = /(.*?)\[\]$/;
	
			$.each( data, function (key, val) {
				var match = val.name.match(rbracket);
	
				if ( match ) {
					// Support for arrays
					var name = match[0];
	
					if ( ! tmp[ name ] ) {
						tmp[ name ] = [];
					}
					tmp[ name ].push( val.value );
				}
				else {
					tmp[val.name] = val.value;
				}
			} );
			data = tmp;
		}
	
		var ajaxData;
		var ajax = oSettings.ajax;
		var instance = oSettings.oInstance;
		var callback = function ( json ) {
			_fnCallbackFire( oSettings, null, 'xhr', [oSettings, json, oSettings.jqXHR] );
			fn( json );
		};
	
		if ( $.isPlainObject( ajax ) && ajax.data )
		{
			ajaxData = ajax.data;
	
			var newData = typeof ajaxData === 'function' ?
				ajaxData( data, oSettings ) :  // fn can manipulate data or return
				ajaxData;                      // an object object or array to merge
	
			// If the function returned something, use that alone
			data = typeof ajaxData === 'function' && newData ?
				newData :
				$.extend( true, data, newData );
	
			// Remove the data property as we've resolved it already and don't want
			// jQuery to do it again (it is restored at the end of the function)
			delete ajax.data;
		}
	
		var baseAjax = {
			"data": data,
			"success": function (json) {
				var error = json.error || json.sError;
				if ( error ) {
					_fnLog( oSettings, 0, error );
				}
	
				oSettings.json = json;
				callback( json );
			},
			"dataType": "json",
			"cache": false,
			"type": oSettings.sServerMethod,
			"error": function (xhr, error, thrown) {
				var ret = _fnCallbackFire( oSettings, null, 'xhr', [oSettings, null, oSettings.jqXHR] );
	
				if ( $.inArray( true, ret ) === -1 ) {
					if ( error == "parsererror" ) {
						_fnLog( oSettings, 0, 'Invalid JSON response', 1 );
					}
					else if ( xhr.readyState === 4 ) {
						_fnLog( oSettings, 0, 'Ajax error', 7 );
					}
				}
	
				_fnProcessingDisplay( oSettings, false );
			}
		};
	
		// Store the data submitted for the API
		oSettings.oAjaxData = data;
	
		// Allow plug-ins and external processes to modify the data
		_fnCallbackFire( oSettings, null, 'preXhr', [oSettings, data] );
	
		if ( oSettings.fnServerData )
		{
			// DataTables 1.9- compatibility
			oSettings.fnServerData.call( instance,
				oSettings.sAjaxSource,
				$.map( data, function (val, key) { // Need to convert back to 1.9 trad format
					return { name: key, value: val };
				} ),
				callback,
				oSettings
			);
		}
		else if ( oSettings.sAjaxSource || typeof ajax === 'string' )
		{
			// DataTables 1.9- compatibility
			oSettings.jqXHR = $.ajax( $.extend( baseAjax, {
				url: ajax || oSettings.sAjaxSource
			} ) );
		}
		else if ( typeof ajax === 'function' )
		{
			// Is a function - let the caller define what needs to be done
			oSettings.jqXHR = ajax.call( instance, data, callback, oSettings );
		}
		else
		{
			// Object to extend the base settings
			oSettings.jqXHR = $.ajax( $.extend( baseAjax, ajax ) );
	
			// Restore for next time around
			ajax.data = ajaxData;
		}
	}
	
	
	/**
	 * Update the table using an Ajax call
	 *  @param {object} settings dataTables settings object
	 *  @returns {boolean} Block the table drawing or not
	 *  @memberof DataTable#oApi
	 */
	function _fnAjaxUpdate( settings )
	{
		settings.iDraw++;
		_fnProcessingDisplay( settings, true );
	
		_fnBuildAjax(
			settings,
			_fnAjaxParameters( settings ),
			function(json) {
				_fnAjaxUpdateDraw( settings, json );
			}
		);
	}
	
	
	/**
	 * Build up the parameters in an object needed for a server-side processing
	 * request. Note that this is basically done twice, is different ways - a modern
	 * method which is used by default in DataTables 1.10 which uses objects and
	 * arrays, or the 1.9- method with is name / value pairs. 1.9 method is used if
	 * the sAjaxSource option is used in the initialisation, or the legacyAjax
	 * option is set.
	 *  @param {object} oSettings dataTables settings object
	 *  @returns {bool} block the table drawing or not
	 *  @memberof DataTable#oApi
	 */
	function _fnAjaxParameters( settings )
	{
		var
			columns = settings.aoColumns,
			columnCount = columns.length,
			features = settings.oFeatures,
			preSearch = settings.oPreviousSearch,
			preColSearch = settings.aoPreSearchCols,
			i, data = [], dataProp, column, columnSearch,
			sort = _fnSortFlatten( settings ),
			displayStart = settings._iDisplayStart,
			displayLength = features.bPaginate !== false ?
				settings._iDisplayLength :
				-1;
	
		var param = function ( name, value ) {
			data.push( { 'name': name, 'value': value } );
		};
	
		// DataTables 1.9- compatible method
		param( 'sEcho',          settings.iDraw );
		param( 'iColumns',       columnCount );
		param( 'sColumns',       _pluck( columns, 'sName' ).join(',') );
		param( 'iDisplayStart',  displayStart );
		param( 'iDisplayLength', displayLength );
	
		// DataTables 1.10+ method
		var d = {
			draw:    settings.iDraw,
			columns: [],
			order:   [],
			start:   displayStart,
			length:  displayLength,
			search:  {
				value: preSearch.sSearch,
				regex: preSearch.bRegex
			}
		};
	
		for ( i=0 ; i<columnCount ; i++ ) {
			column = columns[i];
			columnSearch = preColSearch[i];
			dataProp = typeof column.mData=="function" ? 'function' : column.mData ;
	
			d.columns.push( {
				data:       dataProp,
				name:       column.sName,
				searchable: column.bSearchable,
				orderable:  column.bSortable,
				search:     {
					value: columnSearch.sSearch,
					regex: columnSearch.bRegex
				}
			} );
	
			param( "mDataProp_"+i, dataProp );
	
			if ( features.bFilter ) {
				param( 'sSearch_'+i,     columnSearch.sSearch );
				param( 'bRegex_'+i,      columnSearch.bRegex );
				param( 'bSearchable_'+i, column.bSearchable );
			}
	
			if ( features.bSort ) {
				param( 'bSortable_'+i, column.bSortable );
			}
		}
	
		if ( features.bFilter ) {
			param( 'sSearch', preSearch.sSearch );
			param( 'bRegex', preSearch.bRegex );
		}
	
		if ( features.bSort ) {
			$.each( sort, function ( i, val ) {
				d.order.push( { column: val.col, dir: val.dir } );
	
				param( 'iSortCol_'+i, val.col );
				param( 'sSortDir_'+i, val.dir );
			} );
	
			param( 'iSortingCols', sort.length );
		}
	
		// If the legacy.ajax parameter is null, then we automatically decide which
		// form to use, based on sAjaxSource
		var legacy = DataTable.ext.legacy.ajax;
		if ( legacy === null ) {
			return settings.sAjaxSource ? data : d;
		}
	
		// Otherwise, if legacy has been specified then we use that to decide on the
		// form
		return legacy ? data : d;
	}
	
	
	/**
	 * Data the data from the server (nuking the old) and redraw the table
	 *  @param {object} oSettings dataTables settings object
	 *  @param {object} json json data return from the server.
	 *  @param {string} json.sEcho Tracking flag for DataTables to match requests
	 *  @param {int} json.iTotalRecords Number of records in the data set, not accounting for filtering
	 *  @param {int} json.iTotalDisplayRecords Number of records in the data set, accounting for filtering
	 *  @param {array} json.aaData The data to display on this page
	 *  @param {string} [json.sColumns] Column ordering (sName, comma separated)
	 *  @memberof DataTable#oApi
	 */
	function _fnAjaxUpdateDraw ( settings, json )
	{
		// v1.10 uses camelCase variables, while 1.9 uses Hungarian notation.
		// Support both
		var compat = function ( old, modern ) {
			return json[old] !== undefined ? json[old] : json[modern];
		};
	
		var data = _fnAjaxDataSrc( settings, json );
		var draw            = compat( 'sEcho',                'draw' );
		var recordsTotal    = compat( 'iTotalRecords',        'recordsTotal' );
		var recordsFiltered = compat( 'iTotalDisplayRecords', 'recordsFiltered' );
	
		if ( draw !== undefined ) {
			// Protect against out of sequence returns
			if ( draw*1 < settings.iDraw ) {
				return;
			}
			settings.iDraw = draw * 1;
		}
	
		_fnClearTable( settings );
		settings._iRecordsTotal   = parseInt(recordsTotal, 10);
		settings._iRecordsDisplay = parseInt(recordsFiltered, 10);
	
		for ( var i=0, ien=data.length ; i<ien ; i++ ) {
			_fnAddData( settings, data[i] );
		}
		settings.aiDisplay = settings.aiDisplayMaster.slice();
	
		_fnDraw( settings, true );
	
		if ( ! settings._bInitComplete ) {
			_fnInitComplete( settings, json );
		}
	
		_fnProcessingDisplay( settings, false );
	}
	
	
	/**
	 * Get the data from the JSON data source to use for drawing a table. Using
	 * `_fnGetObjectDataFn` allows the data to be sourced from a property of the
	 * source object, or from a processing function.
	 *  @param {object} oSettings dataTables settings object
	 *  @param  {object} json Data source object / array from the server
	 *  @return {array} Array of data to use
	 */
	function _fnAjaxDataSrc ( oSettings, json )
	{
		var dataSrc = $.isPlainObject( oSettings.ajax ) && oSettings.ajax.dataSrc !== undefined ?
			oSettings.ajax.dataSrc :
			oSettings.sAjaxDataProp; // Compatibility with 1.9-.
	
		// Compatibility with 1.9-. In order to read from aaData, check if the
		// default has been changed, if not, check for aaData
		if ( dataSrc === 'data' ) {
			return json.aaData || json[dataSrc];
		}
	
		return dataSrc !== "" ?
			_fnGetObjectDataFn( dataSrc )( json ) :
			json;
	}
	
	/**
	 * Generate the node required for filtering text
	 *  @returns {node} Filter control element
	 *  @param {object} oSettings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnFeatureHtmlFilter ( settings )
	{
		var classes = settings.oClasses;
		var tableId = settings.sTableId;
		var language = settings.oLanguage;
		var previousSearch = settings.oPreviousSearch;
		var features = settings.aanFeatures;
		var input = '<input type="search" class="'+classes.sFilterInput+'"/>';
	
		var str = language.sSearch;
		str = str.match(/_INPUT_/) ?
			str.replace('_INPUT_', input) :
			str+input;
	
		var filter = $('<div/>', {
				'id': ! features.f ? tableId+'_filter' : null,
				'class': classes.sFilter
			} )
			.append( $('<label/>' ).append( str ) );
	
		var searchFn = function() {
			/* Update all other filter input elements for the new display */
			var n = features.f;
			var val = !this.value ? "" : this.value; // mental IE8 fix :-(
	
			/* Now do the filter */
			if ( val != previousSearch.sSearch ) {
				_fnFilterComplete( settings, {
					"sSearch": val,
					"bRegex": previousSearch.bRegex,
					"bSmart": previousSearch.bSmart ,
					"bCaseInsensitive": previousSearch.bCaseInsensitive
				} );
	
				// Need to redraw, without resorting
				settings._iDisplayStart = 0;
				_fnDraw( settings );
			}
		};
	
		var searchDelay = settings.searchDelay !== null ?
			settings.searchDelay :
			_fnDataSource( settings ) === 'ssp' ?
				400 :
				0;
	
		var jqFilter = $('input', filter)
			.val( previousSearch.sSearch )
			.attr( 'placeholder', language.sSearchPlaceholder )
			.on(
				'keyup.DT search.DT input.DT paste.DT cut.DT',
				searchDelay ?
					_fnThrottle( searchFn, searchDelay ) :
					searchFn
			)
			.on( 'mouseup', function(e) {
				// Edge fix! Edge 17 does not trigger anything other than mouse events when clicking
				// on the clear icon (Edge bug 17584515). This is safe in other browsers as `searchFn`
				// checks the value to see if it has changed. In other browsers it won't have.
				setTimeout( function () {
					searchFn.call(jqFilter[0]);
				}, 10);
			} )
			.on( 'keypress.DT', function(e) {
				/* Prevent form submission */
				if ( e.keyCode == 13 ) {
					return false;
				}
			} )
			.attr('aria-controls', tableId);
	
		// Update the input elements whenever the table is filtered
		$(settings.nTable).on( 'search.dt.DT', function ( ev, s ) {
			if ( settings === s ) {
				// IE9 throws an 'unknown error' if document.activeElement is used
				// inside an iframe or frame...
				try {
					if ( jqFilter[0] !== document.activeElement ) {
						jqFilter.val( previousSearch.sSearch );
					}
				}
				catch ( e ) {}
			}
		} );
	
		return filter[0];
	}
	
	
	/**
	 * Filter the table using both the global filter and column based filtering
	 *  @param {object} oSettings dataTables settings object
	 *  @param {object} oSearch search information
	 *  @param {int} [iForce] force a research of the master array (1) or not (undefined or 0)
	 *  @memberof DataTable#oApi
	 */
	function _fnFilterComplete ( oSettings, oInput, iForce )
	{
		var oPrevSearch = oSettings.oPreviousSearch;
		var aoPrevSearch = oSettings.aoPreSearchCols;
		var fnSaveFilter = function ( oFilter ) {
			/* Save the filtering values */
			oPrevSearch.sSearch = oFilter.sSearch;
			oPrevSearch.bRegex = oFilter.bRegex;
			oPrevSearch.bSmart = oFilter.bSmart;
			oPrevSearch.bCaseInsensitive = oFilter.bCaseInsensitive;
		};
		var fnRegex = function ( o ) {
			// Backwards compatibility with the bEscapeRegex option
			return o.bEscapeRegex !== undefined ? !o.bEscapeRegex : o.bRegex;
		};
	
		// Resolve any column types that are unknown due to addition or invalidation
		// @todo As per sort - can this be moved into an event handler?
		_fnColumnTypes( oSettings );
	
		/* In server-side processing all filtering is done by the server, so no point hanging around here */
		if ( _fnDataSource( oSettings ) != 'ssp' )
		{
			/* Global filter */
			_fnFilter( oSettings, oInput.sSearch, iForce, fnRegex(oInput), oInput.bSmart, oInput.bCaseInsensitive );
			fnSaveFilter( oInput );
	
			/* Now do the individual column filter */
			for ( var i=0 ; i<aoPrevSearch.length ; i++ )
			{
				_fnFilterColumn( oSettings, aoPrevSearch[i].sSearch, i, fnRegex(aoPrevSearch[i]),
					aoPrevSearch[i].bSmart, aoPrevSearch[i].bCaseInsensitive );
			}
	
			/* Custom filtering */
			_fnFilterCustom( oSettings );
		}
		else
		{
			fnSaveFilter( oInput );
		}
	
		/* Tell the draw function we have been filtering */
		oSettings.bFiltered = true;
		_fnCallbackFire( oSettings, null, 'search', [oSettings] );
	}
	
	
	/**
	 * Apply custom filtering functions
	 *  @param {object} oSettings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnFilterCustom( settings )
	{
		var filters = DataTable.ext.search;
		var displayRows = settings.aiDisplay;
		var row, rowIdx;
	
		for ( var i=0, ien=filters.length ; i<ien ; i++ ) {
			var rows = [];
	
			// Loop over each row and see if it should be included
			for ( var j=0, jen=displayRows.length ; j<jen ; j++ ) {
				rowIdx = displayRows[ j ];
				row = settings.aoData[ rowIdx ];
	
				if ( filters[i]( settings, row._aFilterData, rowIdx, row._aData, j ) ) {
					rows.push( rowIdx );
				}
			}
	
			// So the array reference doesn't break set the results into the
			// existing array
			displayRows.length = 0;
			$.merge( displayRows, rows );
		}
	}
	
	
	/**
	 * Filter the table on a per-column basis
	 *  @param {object} oSettings dataTables settings object
	 *  @param {string} sInput string to filter on
	 *  @param {int} iColumn column to filter
	 *  @param {bool} bRegex treat search string as a regular expression or not
	 *  @param {bool} bSmart use smart filtering or not
	 *  @param {bool} bCaseInsensitive Do case insenstive matching or not
	 *  @memberof DataTable#oApi
	 */
	function _fnFilterColumn ( settings, searchStr, colIdx, regex, smart, caseInsensitive )
	{
		if ( searchStr === '' ) {
			return;
		}
	
		var data;
		var out = [];
		var display = settings.aiDisplay;
		var rpSearch = _fnFilterCreateSearch( searchStr, regex, smart, caseInsensitive );
	
		for ( var i=0 ; i<display.length ; i++ ) {
			data = settings.aoData[ display[i] ]._aFilterData[ colIdx ];
	
			if ( rpSearch.test( data ) ) {
				out.push( display[i] );
			}
		}
	
		settings.aiDisplay = out;
	}
	
	
	/**
	 * Filter the data table based on user input and draw the table
	 *  @param {object} settings dataTables settings object
	 *  @param {string} input string to filter on
	 *  @param {int} force optional - force a research of the master array (1) or not (undefined or 0)
	 *  @param {bool} regex treat as a regular expression or not
	 *  @param {bool} smart perform smart filtering or not
	 *  @param {bool} caseInsensitive Do case insenstive matching or not
	 *  @memberof DataTable#oApi
	 */
	function _fnFilter( settings, input, force, regex, smart, caseInsensitive )
	{
		var rpSearch = _fnFilterCreateSearch( input, regex, smart, caseInsensitive );
		var prevSearch = settings.oPreviousSearch.sSearch;
		var displayMaster = settings.aiDisplayMaster;
		var display, invalidated, i;
		var filtered = [];
	
		// Need to take account of custom filtering functions - always filter
		if ( DataTable.ext.search.length !== 0 ) {
			force = true;
		}
	
		// Check if any of the rows were invalidated
		invalidated = _fnFilterData( settings );
	
		// If the input is blank - we just want the full data set
		if ( input.length <= 0 ) {
			settings.aiDisplay = displayMaster.slice();
		}
		else {
			// New search - start from the master array
			if ( invalidated ||
				 force ||
				 regex ||
				 prevSearch.length > input.length ||
				 input.indexOf(prevSearch) !== 0 ||
				 settings.bSorted // On resort, the display master needs to be
				                  // re-filtered since indexes will have changed
			) {
				settings.aiDisplay = displayMaster.slice();
			}
	
			// Search the display array
			display = settings.aiDisplay;
	
			for ( i=0 ; i<display.length ; i++ ) {
				if ( rpSearch.test( settings.aoData[ display[i] ]._sFilterRow ) ) {
					filtered.push( display[i] );
				}
			}
	
			settings.aiDisplay = filtered;
		}
	}
	
	
	/**
	 * Build a regular expression object suitable for searching a table
	 *  @param {string} sSearch string to search for
	 *  @param {bool} bRegex treat as a regular expression or not
	 *  @param {bool} bSmart perform smart filtering or not
	 *  @param {bool} bCaseInsensitive Do case insensitive matching or not
	 *  @returns {RegExp} constructed object
	 *  @memberof DataTable#oApi
	 */
	function _fnFilterCreateSearch( search, regex, smart, caseInsensitive )
	{
		search = regex ?
			search :
			_fnEscapeRegex( search );
		
		if ( smart ) {
			/* For smart filtering we want to allow the search to work regardless of
			 * word order. We also want double quoted text to be preserved, so word
			 * order is important - a la google. So this is what we want to
			 * generate:
			 * 
			 * ^(?=.*?\bone\b)(?=.*?\btwo three\b)(?=.*?\bfour\b).*$
			 */
			var a = $.map( search.match( /"[^"]+"|[^ ]+/g ) || [''], function ( word ) {
				if ( word.charAt(0) === '"' ) {
					var m = word.match( /^"(.*)"$/ );
					word = m ? m[1] : word;
				}
	
				return word.replace('"', '');
			} );
	
			search = '^(?=.*?'+a.join( ')(?=.*?' )+').*$';
		}
	
		return new RegExp( search, caseInsensitive ? 'i' : '' );
	}
	
	
	/**
	 * Escape a string such that it can be used in a regular expression
	 *  @param {string} sVal string to escape
	 *  @returns {string} escaped string
	 *  @memberof DataTable#oApi
	 */
	var _fnEscapeRegex = DataTable.util.escapeRegex;
	
	var __filter_div = $('<div>')[0];
	var __filter_div_textContent = __filter_div.textContent !== undefined;
	
	// Update the filtering data for each row if needed (by invalidation or first run)
	function _fnFilterData ( settings )
	{
		var columns = settings.aoColumns;
		var column;
		var i, j, ien, jen, filterData, cellData, row;
		var fomatters = DataTable.ext.type.search;
		var wasInvalidated = false;
	
		for ( i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
			row = settings.aoData[i];
	
			if ( ! row._aFilterData ) {
				filterData = [];
	
				for ( j=0, jen=columns.length ; j<jen ; j++ ) {
					column = columns[j];
	
					if ( column.bSearchable ) {
						cellData = _fnGetCellData( settings, i, j, 'filter' );
	
						if ( fomatters[ column.sType ] ) {
							cellData = fomatters[ column.sType ]( cellData );
						}
	
						// Search in DataTables 1.10 is string based. In 1.11 this
						// should be altered to also allow strict type checking.
						if ( cellData === null ) {
							cellData = '';
						}
	
						if ( typeof cellData !== 'string' && cellData.toString ) {
							cellData = cellData.toString();
						}
					}
					else {
						cellData = '';
					}
	
					// If it looks like there is an HTML entity in the string,
					// attempt to decode it so sorting works as expected. Note that
					// we could use a single line of jQuery to do this, but the DOM
					// method used here is much faster http://jsperf.com/html-decode
					if ( cellData.indexOf && cellData.indexOf('&') !== -1 ) {
						__filter_div.innerHTML = cellData;
						cellData = __filter_div_textContent ?
							__filter_div.textContent :
							__filter_div.innerText;
					}
	
					if ( cellData.replace ) {
						cellData = cellData.replace(/[\r\n\u2028]/g, '');
					}
	
					filterData.push( cellData );
				}
	
				row._aFilterData = filterData;
				row._sFilterRow = filterData.join('  ');
				wasInvalidated = true;
			}
		}
	
		return wasInvalidated;
	}
	
	
	/**
	 * Convert from the internal Hungarian notation to camelCase for external
	 * interaction
	 *  @param {object} obj Object to convert
	 *  @returns {object} Inverted object
	 *  @memberof DataTable#oApi
	 */
	function _fnSearchToCamel ( obj )
	{
		return {
			search:          obj.sSearch,
			smart:           obj.bSmart,
			regex:           obj.bRegex,
			caseInsensitive: obj.bCaseInsensitive
		};
	}
	
	
	
	/**
	 * Convert from camelCase notation to the internal Hungarian. We could use the
	 * Hungarian convert function here, but this is cleaner
	 *  @param {object} obj Object to convert
	 *  @returns {object} Inverted object
	 *  @memberof DataTable#oApi
	 */
	function _fnSearchToHung ( obj )
	{
		return {
			sSearch:          obj.search,
			bSmart:           obj.smart,
			bRegex:           obj.regex,
			bCaseInsensitive: obj.caseInsensitive
		};
	}
	
	/**
	 * Generate the node required for the info display
	 *  @param {object} oSettings dataTables settings object
	 *  @returns {node} Information element
	 *  @memberof DataTable#oApi
	 */
	function _fnFeatureHtmlInfo ( settings )
	{
		var
			tid = settings.sTableId,
			nodes = settings.aanFeatures.i,
			n = $('<div/>', {
				'class': settings.oClasses.sInfo,
				'id': ! nodes ? tid+'_info' : null
			} );
	
		if ( ! nodes ) {
			// Update display on each draw
			settings.aoDrawCallback.push( {
				"fn": _fnUpdateInfo,
				"sName": "information"
			} );
	
			n
				.attr( 'role', 'status' )
				.attr( 'aria-live', 'polite' );
	
			// Table is described by our info div
			$(settings.nTable).attr( 'aria-describedby', tid+'_info' );
		}
	
		return n[0];
	}
	
	
	/**
	 * Update the information elements in the display
	 *  @param {object} settings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnUpdateInfo ( settings )
	{
		/* Show information about the table */
		var nodes = settings.aanFeatures.i;
		if ( nodes.length === 0 ) {
			return;
		}
	
		var
			lang  = settings.oLanguage,
			start = settings._iDisplayStart+1,
			end   = settings.fnDisplayEnd(),
			max   = settings.fnRecordsTotal(),
			total = settings.fnRecordsDisplay(),
			out   = total ?
				lang.sInfo :
				lang.sInfoEmpty;
	
		if ( total !== max ) {
			/* Record set after filtering */
			out += ' ' + lang.sInfoFiltered;
		}
	
		// Convert the macros
		out += lang.sInfoPostFix;
		out = _fnInfoMacros( settings, out );
	
		var callback = lang.fnInfoCallback;
		if ( callback !== null ) {
			out = callback.call( settings.oInstance,
				settings, start, end, max, total, out
			);
		}
	
		$(nodes).html( out );
	}
	
	
	function _fnInfoMacros ( settings, str )
	{
		// When infinite scrolling, we are always starting at 1. _iDisplayStart is used only
		// internally
		var
			formatter  = settings.fnFormatNumber,
			start      = settings._iDisplayStart+1,
			len        = settings._iDisplayLength,
			vis        = settings.fnRecordsDisplay(),
			all        = len === -1;
	
		return str.
			replace(/_START_/g, formatter.call( settings, start ) ).
			replace(/_END_/g,   formatter.call( settings, settings.fnDisplayEnd() ) ).
			replace(/_MAX_/g,   formatter.call( settings, settings.fnRecordsTotal() ) ).
			replace(/_TOTAL_/g, formatter.call( settings, vis ) ).
			replace(/_PAGE_/g,  formatter.call( settings, all ? 1 : Math.ceil( start / len ) ) ).
			replace(/_PAGES_/g, formatter.call( settings, all ? 1 : Math.ceil( vis / len ) ) );
	}
	
	
	
	/**
	 * Draw the table for the first time, adding all required features
	 *  @param {object} settings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnInitialise ( settings )
	{
		var i, iLen, iAjaxStart=settings.iInitDisplayStart;
		var columns = settings.aoColumns, column;
		var features = settings.oFeatures;
		var deferLoading = settings.bDeferLoading; // value modified by the draw
	
		/* Ensure that the table data is fully initialised */
		if ( ! settings.bInitialised ) {
			setTimeout( function(){ _fnInitialise( settings ); }, 200 );
			return;
		}
	
		/* Show the display HTML options */
		_fnAddOptionsHtml( settings );
	
		/* Build and draw the header / footer for the table */
		_fnBuildHead( settings );
		_fnDrawHead( settings, settings.aoHeader );
		_fnDrawHead( settings, settings.aoFooter );
	
		/* Okay to show that something is going on now */
		_fnProcessingDisplay( settings, true );
	
		/* Calculate sizes for columns */
		if ( features.bAutoWidth ) {
			_fnCalculateColumnWidths( settings );
		}
	
		for ( i=0, iLen=columns.length ; i<iLen ; i++ ) {
			column = columns[i];
	
			if ( column.sWidth ) {
				column.nTh.style.width = _fnStringToCss( column.sWidth );
			}
		}
	
		_fnCallbackFire( settings, null, 'preInit', [settings] );
	
		// If there is default sorting required - let's do it. The sort function
		// will do the drawing for us. Otherwise we draw the table regardless of the
		// Ajax source - this allows the table to look initialised for Ajax sourcing
		// data (show 'loading' message possibly)
		_fnReDraw( settings );
	
		// Server-side processing init complete is done by _fnAjaxUpdateDraw
		var dataSrc = _fnDataSource( settings );
		if ( dataSrc != 'ssp' || deferLoading ) {
			// if there is an ajax source load the data
			if ( dataSrc == 'ajax' ) {
				_fnBuildAjax( settings, [], function(json) {
					var aData = _fnAjaxDataSrc( settings, json );
	
					// Got the data - add it to the table
					for ( i=0 ; i<aData.length ; i++ ) {
						_fnAddData( settings, aData[i] );
					}
	
					// Reset the init display for cookie saving. We've already done
					// a filter, and therefore cleared it before. So we need to make
					// it appear 'fresh'
					settings.iInitDisplayStart = iAjaxStart;
	
					_fnReDraw( settings );
	
					_fnProcessingDisplay( settings, false );
					_fnInitComplete( settings, json );
				}, settings );
			}
			else {
				_fnProcessingDisplay( settings, false );
				_fnInitComplete( settings );
			}
		}
	}
	
	
	/**
	 * Draw the table for the first time, adding all required features
	 *  @param {object} oSettings dataTables settings object
	 *  @param {object} [json] JSON from the server that completed the table, if using Ajax source
	 *    with client-side processing (optional)
	 *  @memberof DataTable#oApi
	 */
	function _fnInitComplete ( settings, json )
	{
		settings._bInitComplete = true;
	
		// When data was added after the initialisation (data or Ajax) we need to
		// calculate the column sizing
		if ( json || settings.oInit.aaData ) {
			_fnAdjustColumnSizing( settings );
		}
	
		_fnCallbackFire( settings, null, 'plugin-init', [settings, json] );
		_fnCallbackFire( settings, 'aoInitComplete', 'init', [settings, json] );
	}
	
	
	function _fnLengthChange ( settings, val )
	{
		var len = parseInt( val, 10 );
		settings._iDisplayLength = len;
	
		_fnLengthOverflow( settings );
	
		// Fire length change event
		_fnCallbackFire( settings, null, 'length', [settings, len] );
	}
	
	
	/**
	 * Generate the node required for user display length changing
	 *  @param {object} settings dataTables settings object
	 *  @returns {node} Display length feature node
	 *  @memberof DataTable#oApi
	 */
	function _fnFeatureHtmlLength ( settings )
	{
		var
			classes  = settings.oClasses,
			tableId  = settings.sTableId,
			menu     = settings.aLengthMenu,
			d2       = Array.isArray( menu[0] ),
			lengths  = d2 ? menu[0] : menu,
			language = d2 ? menu[1] : menu;
	
		var select = $('<select/>', {
			'name':          tableId+'_length',
			'aria-controls': tableId,
			'class':         classes.sLengthSelect
		} );
	
		for ( var i=0, ien=lengths.length ; i<ien ; i++ ) {
			select[0][ i ] = new Option(
				typeof language[i] === 'number' ?
					settings.fnFormatNumber( language[i] ) :
					language[i],
				lengths[i]
			);
		}
	
		var div = $('<div><label/></div>').addClass( classes.sLength );
		if ( ! settings.aanFeatures.l ) {
			div[0].id = tableId+'_length';
		}
	
		div.children().append(
			settings.oLanguage.sLengthMenu.replace( '_MENU_', select[0].outerHTML )
		);
	
		// Can't use `select` variable as user might provide their own and the
		// reference is broken by the use of outerHTML
		$('select', div)
			.val( settings._iDisplayLength )
			.on( 'change.DT', function(e) {
				_fnLengthChange( settings, $(this).val() );
				_fnDraw( settings );
			} );
	
		// Update node value whenever anything changes the table's length
		$(settings.nTable).on( 'length.dt.DT', function (e, s, len) {
			if ( settings === s ) {
				$('select', div).val( len );
			}
		} );
	
		return div[0];
	}
	
	
	
	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	 * Note that most of the paging logic is done in
	 * DataTable.ext.pager
	 */
	
	/**
	 * Generate the node required for default pagination
	 *  @param {object} oSettings dataTables settings object
	 *  @returns {node} Pagination feature node
	 *  @memberof DataTable#oApi
	 */
	function _fnFeatureHtmlPaginate ( settings )
	{
		var
			type   = settings.sPaginationType,
			plugin = DataTable.ext.pager[ type ],
			modern = typeof plugin === 'function',
			redraw = function( settings ) {
				_fnDraw( settings );
			},
			node = $('<div/>').addClass( settings.oClasses.sPaging + type )[0],
			features = settings.aanFeatures;
	
		if ( ! modern ) {
			plugin.fnInit( settings, node, redraw );
		}
	
		/* Add a draw callback for the pagination on first instance, to update the paging display */
		if ( ! features.p )
		{
			node.id = settings.sTableId+'_paginate';
	
			settings.aoDrawCallback.push( {
				"fn": function( settings ) {
					if ( modern ) {
						var
							start      = settings._iDisplayStart,
							len        = settings._iDisplayLength,
							visRecords = settings.fnRecordsDisplay(),
							all        = len === -1,
							page = all ? 0 : Math.ceil( start / len ),
							pages = all ? 1 : Math.ceil( visRecords / len ),
							buttons = plugin(page, pages),
							i, ien;
	
						for ( i=0, ien=features.p.length ; i<ien ; i++ ) {
							_fnRenderer( settings, 'pageButton' )(
								settings, features.p[i], i, buttons, page, pages
							);
						}
					}
					else {
						plugin.fnUpdate( settings, redraw );
					}
				},
				"sName": "pagination"
			} );
		}
	
		return node;
	}
	
	
	/**
	 * Alter the display settings to change the page
	 *  @param {object} settings DataTables settings object
	 *  @param {string|int} action Paging action to take: "first", "previous",
	 *    "next" or "last" or page number to jump to (integer)
	 *  @param [bool] redraw Automatically draw the update or not
	 *  @returns {bool} true page has changed, false - no change
	 *  @memberof DataTable#oApi
	 */
	function _fnPageChange ( settings, action, redraw )
	{
		var
			start     = settings._iDisplayStart,
			len       = settings._iDisplayLength,
			records   = settings.fnRecordsDisplay();
	
		if ( records === 0 || len === -1 )
		{
			start = 0;
		}
		else if ( typeof action === "number" )
		{
			start = action * len;
	
			if ( start > records )
			{
				start = 0;
			}
		}
		else if ( action == "first" )
		{
			start = 0;
		}
		else if ( action == "previous" )
		{
			start = len >= 0 ?
				start - len :
				0;
	
			if ( start < 0 )
			{
			  start = 0;
			}
		}
		else if ( action == "next" )
		{
			if ( start + len < records )
			{
				start += len;
			}
		}
		else if ( action == "last" )
		{
			start = Math.floor( (records-1) / len) * len;
		}
		else
		{
			_fnLog( settings, 0, "Unknown paging action: "+action, 5 );
		}
	
		var changed = settings._iDisplayStart !== start;
		settings._iDisplayStart = start;
	
		if ( changed ) {
			_fnCallbackFire( settings, null, 'page', [settings] );
	
			if ( redraw ) {
				_fnDraw( settings );
			}
		}
	
		return changed;
	}
	
	
	
	/**
	 * Generate the node required for the processing node
	 *  @param {object} settings dataTables settings object
	 *  @returns {node} Processing element
	 *  @memberof DataTable#oApi
	 */
	function _fnFeatureHtmlProcessing ( settings )
	{
		return $('<div/>', {
				'id': ! settings.aanFeatures.r ? settings.sTableId+'_processing' : null,
				'class': settings.oClasses.sProcessing
			} )
			.html( settings.oLanguage.sProcessing )
			.insertBefore( settings.nTable )[0];
	}
	
	
	/**
	 * Display or hide the processing indicator
	 *  @param {object} settings dataTables settings object
	 *  @param {bool} show Show the processing indicator (true) or not (false)
	 *  @memberof DataTable#oApi
	 */
	function _fnProcessingDisplay ( settings, show )
	{
		if ( settings.oFeatures.bProcessing ) {
			$(settings.aanFeatures.r).css( 'display', show ? 'block' : 'none' );
		}
	
		_fnCallbackFire( settings, null, 'processing', [settings, show] );
	}
	
	/**
	 * Add any control elements for the table - specifically scrolling
	 *  @param {object} settings dataTables settings object
	 *  @returns {node} Node to add to the DOM
	 *  @memberof DataTable#oApi
	 */
	function _fnFeatureHtmlTable ( settings )
	{
		var table = $(settings.nTable);
	
		// Add the ARIA grid role to the table
		table.attr( 'role', 'grid' );
	
		// Scrolling from here on in
		var scroll = settings.oScroll;
	
		if ( scroll.sX === '' && scroll.sY === '' ) {
			return settings.nTable;
		}
	
		var scrollX = scroll.sX;
		var scrollY = scroll.sY;
		var classes = settings.oClasses;
		var caption = table.children('caption');
		var captionSide = caption.length ? caption[0]._captionSide : null;
		var headerClone = $( table[0].cloneNode(false) );
		var footerClone = $( table[0].cloneNode(false) );
		var footer = table.children('tfoot');
		var _div = '<div/>';
		var size = function ( s ) {
			return !s ? null : _fnStringToCss( s );
		};
	
		if ( ! footer.length ) {
			footer = null;
		}
	
		/*
		 * The HTML structure that we want to generate in this function is:
		 *  div - scroller
		 *    div - scroll head
		 *      div - scroll head inner
		 *        table - scroll head table
		 *          thead - thead
		 *    div - scroll body
		 *      table - table (master table)
		 *        thead - thead clone for sizing
		 *        tbody - tbody
		 *    div - scroll foot
		 *      div - scroll foot inner
		 *        table - scroll foot table
		 *          tfoot - tfoot
		 */
		var scroller = $( _div, { 'class': classes.sScrollWrapper } )
			.append(
				$(_div, { 'class': classes.sScrollHead } )
					.css( {
						overflow: 'hidden',
						position: 'relative',
						border: 0,
						width: scrollX ? size(scrollX) : '100%'
					} )
					.append(
						$(_div, { 'class': classes.sScrollHeadInner } )
							.css( {
								'box-sizing': 'content-box',
								width: scroll.sXInner || '100%'
							} )
							.append(
								headerClone
									.removeAttr('id')
									.css( 'margin-left', 0 )
									.append( captionSide === 'top' ? caption : null )
									.append(
										table.children('thead')
									)
							)
					)
			)
			.append(
				$(_div, { 'class': classes.sScrollBody } )
					.css( {
						position: 'relative',
						overflow: 'auto',
						width: size( scrollX )
					} )
					.append( table )
			);
	
		if ( footer ) {
			scroller.append(
				$(_div, { 'class': classes.sScrollFoot } )
					.css( {
						overflow: 'hidden',
						border: 0,
						width: scrollX ? size(scrollX) : '100%'
					} )
					.append(
						$(_div, { 'class': classes.sScrollFootInner } )
							.append(
								footerClone
									.removeAttr('id')
									.css( 'margin-left', 0 )
									.append( captionSide === 'bottom' ? caption : null )
									.append(
										table.children('tfoot')
									)
							)
					)
			);
		}
	
		var children = scroller.children();
		var scrollHead = children[0];
		var scrollBody = children[1];
		var scrollFoot = footer ? children[2] : null;
	
		// When the body is scrolled, then we also want to scroll the headers
		if ( scrollX ) {
			$(scrollBody).on( 'scroll.DT', function (e) {
				var scrollLeft = this.scrollLeft;
	
				scrollHead.scrollLeft = scrollLeft;
	
				if ( footer ) {
					scrollFoot.scrollLeft = scrollLeft;
				}
			} );
		}
	
		$(scrollBody).css('max-height', scrollY);
		if (! scroll.bCollapse) {
			$(scrollBody).css('height', scrollY);
		}
	
		settings.nScrollHead = scrollHead;
		settings.nScrollBody = scrollBody;
		settings.nScrollFoot = scrollFoot;
	
		// On redraw - align columns
		settings.aoDrawCallback.push( {
			"fn": _fnScrollDraw,
			"sName": "scrolling"
		} );
	
		return scroller[0];
	}
	
	
	
	/**
	 * Update the header, footer and body tables for resizing - i.e. column
	 * alignment.
	 *
	 * Welcome to the most horrible function DataTables. The process that this
	 * function follows is basically:
	 *   1. Re-create the table inside the scrolling div
	 *   2. Take live measurements from the DOM
	 *   3. Apply the measurements to align the columns
	 *   4. Clean up
	 *
	 *  @param {object} settings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnScrollDraw ( settings )
	{
		// Given that this is such a monster function, a lot of variables are use
		// to try and keep the minimised size as small as possible
		var
			scroll         = settings.oScroll,
			scrollX        = scroll.sX,
			scrollXInner   = scroll.sXInner,
			scrollY        = scroll.sY,
			barWidth       = scroll.iBarWidth,
			divHeader      = $(settings.nScrollHead),
			divHeaderStyle = divHeader[0].style,
			divHeaderInner = divHeader.children('div'),
			divHeaderInnerStyle = divHeaderInner[0].style,
			divHeaderTable = divHeaderInner.children('table'),
			divBodyEl      = settings.nScrollBody,
			divBody        = $(divBodyEl),
			divBodyStyle   = divBodyEl.style,
			divFooter      = $(settings.nScrollFoot),
			divFooterInner = divFooter.children('div'),
			divFooterTable = divFooterInner.children('table'),
			header         = $(settings.nTHead),
			table          = $(settings.nTable),
			tableEl        = table[0],
			tableStyle     = tableEl.style,
			footer         = settings.nTFoot ? $(settings.nTFoot) : null,
			browser        = settings.oBrowser,
			ie67           = browser.bScrollOversize,
			dtHeaderCells  = _pluck( settings.aoColumns, 'nTh' ),
			headerTrgEls, footerTrgEls,
			headerSrcEls, footerSrcEls,
			headerCopy, footerCopy,
			headerWidths=[], footerWidths=[],
			headerContent=[], footerContent=[],
			idx, correction, sanityWidth,
			zeroOut = function(nSizer) {
				var style = nSizer.style;
				style.paddingTop = "0";
				style.paddingBottom = "0";
				style.borderTopWidth = "0";
				style.borderBottomWidth = "0";
				style.height = 0;
			};
	
		// If the scrollbar visibility has changed from the last draw, we need to
		// adjust the column sizes as the table width will have changed to account
		// for the scrollbar
		var scrollBarVis = divBodyEl.scrollHeight > divBodyEl.clientHeight;
		
		if ( settings.scrollBarVis !== scrollBarVis && settings.scrollBarVis !== undefined ) {
			settings.scrollBarVis = scrollBarVis;
			_fnAdjustColumnSizing( settings );
			return; // adjust column sizing will call this function again
		}
		else {
			settings.scrollBarVis = scrollBarVis;
		}
	
		/*
		 * 1. Re-create the table inside the scrolling div
		 */
	
		// Remove the old minimised thead and tfoot elements in the inner table
		table.children('thead, tfoot').remove();
	
		if ( footer ) {
			footerCopy = footer.clone().prependTo( table );
			footerTrgEls = footer.find('tr'); // the original tfoot is in its own table and must be sized
			footerSrcEls = footerCopy.find('tr');
		}
	
		// Clone the current header and footer elements and then place it into the inner table
		headerCopy = header.clone().prependTo( table );
		headerTrgEls = header.find('tr'); // original header is in its own table
		headerSrcEls = headerCopy.find('tr');
		headerCopy.find('th, td').removeAttr('tabindex');
	
	
		/*
		 * 2. Take live measurements from the DOM - do not alter the DOM itself!
		 */
	
		// Remove old sizing and apply the calculated column widths
		// Get the unique column headers in the newly created (cloned) header. We want to apply the
		// calculated sizes to this header
		if ( ! scrollX )
		{
			divBodyStyle.width = '100%';
			divHeader[0].style.width = '100%';
		}
	
		$.each( _fnGetUniqueThs( settings, headerCopy ), function ( i, el ) {
			idx = _fnVisibleToColumnIndex( settings, i );
			el.style.width = settings.aoColumns[idx].sWidth;
		} );
	
		if ( footer ) {
			_fnApplyToChildren( function(n) {
				n.style.width = "";
			}, footerSrcEls );
		}
	
		// Size the table as a whole
		sanityWidth = table.outerWidth();
		if ( scrollX === "" ) {
			// No x scrolling
			tableStyle.width = "100%";
	
			// IE7 will make the width of the table when 100% include the scrollbar
			// - which is shouldn't. When there is a scrollbar we need to take this
			// into account.
			if ( ie67 && (table.find('tbody').height() > divBodyEl.offsetHeight ||
				divBody.css('overflow-y') == "scroll")
			) {
				tableStyle.width = _fnStringToCss( table.outerWidth() - barWidth);
			}
	
			// Recalculate the sanity width
			sanityWidth = table.outerWidth();
		}
		else if ( scrollXInner !== "" ) {
			// legacy x scroll inner has been given - use it
			tableStyle.width = _fnStringToCss(scrollXInner);
	
			// Recalculate the sanity width
			sanityWidth = table.outerWidth();
		}
	
		// Hidden header should have zero height, so remove padding and borders. Then
		// set the width based on the real headers
	
		// Apply all styles in one pass
		_fnApplyToChildren( zeroOut, headerSrcEls );
	
		// Read all widths in next pass
		_fnApplyToChildren( function(nSizer) {
			headerContent.push( nSizer.innerHTML );
			headerWidths.push( _fnStringToCss( $(nSizer).css('width') ) );
		}, headerSrcEls );
	
		// Apply all widths in final pass
		_fnApplyToChildren( function(nToSize, i) {
			// Only apply widths to the DataTables detected header cells - this
			// prevents complex headers from having contradictory sizes applied
			if ( $.inArray( nToSize, dtHeaderCells ) !== -1 ) {
				nToSize.style.width = headerWidths[i];
			}
		}, headerTrgEls );
	
		$(headerSrcEls).height(0);
	
		/* Same again with the footer if we have one */
		if ( footer )
		{
			_fnApplyToChildren( zeroOut, footerSrcEls );
	
			_fnApplyToChildren( function(nSizer) {
				footerContent.push( nSizer.innerHTML );
				footerWidths.push( _fnStringToCss( $(nSizer).css('width') ) );
			}, footerSrcEls );
	
			_fnApplyToChildren( function(nToSize, i) {
				nToSize.style.width = footerWidths[i];
			}, footerTrgEls );
	
			$(footerSrcEls).height(0);
		}
	
	
		/*
		 * 3. Apply the measurements
		 */
	
		// "Hide" the header and footer that we used for the sizing. We need to keep
		// the content of the cell so that the width applied to the header and body
		// both match, but we want to hide it completely. We want to also fix their
		// width to what they currently are
		_fnApplyToChildren( function(nSizer, i) {
			nSizer.innerHTML = '<div class="dataTables_sizing">'+headerContent[i]+'</div>';
			nSizer.childNodes[0].style.height = "0";
			nSizer.childNodes[0].style.overflow = "hidden";
			nSizer.style.width = headerWidths[i];
		}, headerSrcEls );
	
		if ( footer )
		{
			_fnApplyToChildren( function(nSizer, i) {
				nSizer.innerHTML = '<div class="dataTables_sizing">'+footerContent[i]+'</div>';
				nSizer.childNodes[0].style.height = "0";
				nSizer.childNodes[0].style.overflow = "hidden";
				nSizer.style.width = footerWidths[i];
			}, footerSrcEls );
		}
	
		// Sanity check that the table is of a sensible width. If not then we are going to get
		// misalignment - try to prevent this by not allowing the table to shrink below its min width
		if ( table.outerWidth() < sanityWidth )
		{
			// The min width depends upon if we have a vertical scrollbar visible or not */
			correction = ((divBodyEl.scrollHeight > divBodyEl.offsetHeight ||
				divBody.css('overflow-y') == "scroll")) ?
					sanityWidth+barWidth :
					sanityWidth;
	
			// IE6/7 are a law unto themselves...
			if ( ie67 && (divBodyEl.scrollHeight >
				divBodyEl.offsetHeight || divBody.css('overflow-y') == "scroll")
			) {
				tableStyle.width = _fnStringToCss( correction-barWidth );
			}
	
			// And give the user a warning that we've stopped the table getting too small
			if ( scrollX === "" || scrollXInner !== "" ) {
				_fnLog( settings, 1, 'Possible column misalignment', 6 );
			}
		}
		else
		{
			correction = '100%';
		}
	
		// Apply to the container elements
		divBodyStyle.width = _fnStringToCss( correction );
		divHeaderStyle.width = _fnStringToCss( correction );
	
		if ( footer ) {
			settings.nScrollFoot.style.width = _fnStringToCss( correction );
		}
	
	
		/*
		 * 4. Clean up
		 */
		if ( ! scrollY ) {
			/* IE7< puts a vertical scrollbar in place (when it shouldn't be) due to subtracting
			 * the scrollbar height from the visible display, rather than adding it on. We need to
			 * set the height in order to sort this. Don't want to do it in any other browsers.
			 */
			if ( ie67 ) {
				divBodyStyle.height = _fnStringToCss( tableEl.offsetHeight+barWidth );
			}
		}
	
		/* Finally set the width's of the header and footer tables */
		var iOuterWidth = table.outerWidth();
		divHeaderTable[0].style.width = _fnStringToCss( iOuterWidth );
		divHeaderInnerStyle.width = _fnStringToCss( iOuterWidth );
	
		// Figure out if there are scrollbar present - if so then we need a the header and footer to
		// provide a bit more space to allow "overflow" scrolling (i.e. past the scrollbar)
		var bScrolling = table.height() > divBodyEl.clientHeight || divBody.css('overflow-y') == "scroll";
		var padding = 'padding' + (browser.bScrollbarLeft ? 'Left' : 'Right' );
		divHeaderInnerStyle[ padding ] = bScrolling ? barWidth+"px" : "0px";
	
		if ( footer ) {
			divFooterTable[0].style.width = _fnStringToCss( iOuterWidth );
			divFooterInner[0].style.width = _fnStringToCss( iOuterWidth );
			divFooterInner[0].style[padding] = bScrolling ? barWidth+"px" : "0px";
		}
	
		// Correct DOM ordering for colgroup - comes before the thead
		table.children('colgroup').insertBefore( table.children('thead') );
	
		/* Adjust the position of the header in case we loose the y-scrollbar */
		divBody.trigger('scroll');
	
		// If sorting or filtering has occurred, jump the scrolling back to the top
		// only if we aren't holding the position
		if ( (settings.bSorted || settings.bFiltered) && ! settings._drawHold ) {
			divBodyEl.scrollTop = 0;
		}
	}
	
	
	
	/**
	 * Apply a given function to the display child nodes of an element array (typically
	 * TD children of TR rows
	 *  @param {function} fn Method to apply to the objects
	 *  @param array {nodes} an1 List of elements to look through for display children
	 *  @param array {nodes} an2 Another list (identical structure to the first) - optional
	 *  @memberof DataTable#oApi
	 */
	function _fnApplyToChildren( fn, an1, an2 )
	{
		var index=0, i=0, iLen=an1.length;
		var nNode1, nNode2;
	
		while ( i < iLen ) {
			nNode1 = an1[i].firstChild;
			nNode2 = an2 ? an2[i].firstChild : null;
	
			while ( nNode1 ) {
				if ( nNode1.nodeType === 1 ) {
					if ( an2 ) {
						fn( nNode1, nNode2, index );
					}
					else {
						fn( nNode1, index );
					}
	
					index++;
				}
	
				nNode1 = nNode1.nextSibling;
				nNode2 = an2 ? nNode2.nextSibling : null;
			}
	
			i++;
		}
	}
	
	
	
	var __re_html_remove = /<.*?>/g;
	
	
	/**
	 * Calculate the width of columns for the table
	 *  @param {object} oSettings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnCalculateColumnWidths ( oSettings )
	{
		var
			table = oSettings.nTable,
			columns = oSettings.aoColumns,
			scroll = oSettings.oScroll,
			scrollY = scroll.sY,
			scrollX = scroll.sX,
			scrollXInner = scroll.sXInner,
			columnCount = columns.length,
			visibleColumns = _fnGetColumns( oSettings, 'bVisible' ),
			headerCells = $('th', oSettings.nTHead),
			tableWidthAttr = table.getAttribute('width'), // from DOM element
			tableContainer = table.parentNode,
			userInputs = false,
			i, column, columnIdx, width, outerWidth,
			browser = oSettings.oBrowser,
			ie67 = browser.bScrollOversize;
	
		var styleWidth = table.style.width;
		if ( styleWidth && styleWidth.indexOf('%') !== -1 ) {
			tableWidthAttr = styleWidth;
		}
	
		/* Convert any user input sizes into pixel sizes */
		for ( i=0 ; i<visibleColumns.length ; i++ ) {
			column = columns[ visibleColumns[i] ];
	
			if ( column.sWidth !== null ) {
				column.sWidth = _fnConvertToWidth( column.sWidthOrig, tableContainer );
	
				userInputs = true;
			}
		}
	
		/* If the number of columns in the DOM equals the number that we have to
		 * process in DataTables, then we can use the offsets that are created by
		 * the web- browser. No custom sizes can be set in order for this to happen,
		 * nor scrolling used
		 */
		if ( ie67 || ! userInputs && ! scrollX && ! scrollY &&
		     columnCount == _fnVisbleColumns( oSettings ) &&
		     columnCount == headerCells.length
		) {
			for ( i=0 ; i<columnCount ; i++ ) {
				var colIdx = _fnVisibleToColumnIndex( oSettings, i );
	
				if ( colIdx !== null ) {
					columns[ colIdx ].sWidth = _fnStringToCss( headerCells.eq(i).width() );
				}
			}
		}
		else
		{
			// Otherwise construct a single row, worst case, table with the widest
			// node in the data, assign any user defined widths, then insert it into
			// the DOM and allow the browser to do all the hard work of calculating
			// table widths
			var tmpTable = $(table).clone() // don't use cloneNode - IE8 will remove events on the main table
				.css( 'visibility', 'hidden' )
				.removeAttr( 'id' );
	
			// Clean up the table body
			tmpTable.find('tbody tr').remove();
			var tr = $('<tr/>').appendTo( tmpTable.find('tbody') );
	
			// Clone the table header and footer - we can't use the header / footer
			// from the cloned table, since if scrolling is active, the table's
			// real header and footer are contained in different table tags
			tmpTable.find('thead, tfoot').remove();
			tmpTable
				.append( $(oSettings.nTHead).clone() )
				.append( $(oSettings.nTFoot).clone() );
	
			// Remove any assigned widths from the footer (from scrolling)
			tmpTable.find('tfoot th, tfoot td').css('width', '');
	
			// Apply custom sizing to the cloned header
			headerCells = _fnGetUniqueThs( oSettings, tmpTable.find('thead')[0] );
	
			for ( i=0 ; i<visibleColumns.length ; i++ ) {
				column = columns[ visibleColumns[i] ];
	
				headerCells[i].style.width = column.sWidthOrig !== null && column.sWidthOrig !== '' ?
					_fnStringToCss( column.sWidthOrig ) :
					'';
	
				// For scrollX we need to force the column width otherwise the
				// browser will collapse it. If this width is smaller than the
				// width the column requires, then it will have no effect
				if ( column.sWidthOrig && scrollX ) {
					$( headerCells[i] ).append( $('<div/>').css( {
						width: column.sWidthOrig,
						margin: 0,
						padding: 0,
						border: 0,
						height: 1
					} ) );
				}
			}
	
			// Find the widest cell for each column and put it into the table
			if ( oSettings.aoData.length ) {
				for ( i=0 ; i<visibleColumns.length ; i++ ) {
					columnIdx = visibleColumns[i];
					column = columns[ columnIdx ];
	
					$( _fnGetWidestNode( oSettings, columnIdx ) )
						.clone( false )
						.append( column.sContentPadding )
						.appendTo( tr );
				}
			}
	
			// Tidy the temporary table - remove name attributes so there aren't
			// duplicated in the dom (radio elements for example)
			$('[name]', tmpTable).removeAttr('name');
	
			// Table has been built, attach to the document so we can work with it.
			// A holding element is used, positioned at the top of the container
			// with minimal height, so it has no effect on if the container scrolls
			// or not. Otherwise it might trigger scrolling when it actually isn't
			// needed
			var holder = $('<div/>').css( scrollX || scrollY ?
					{
						position: 'absolute',
						top: 0,
						left: 0,
						height: 1,
						right: 0,
						overflow: 'hidden'
					} :
					{}
				)
				.append( tmpTable )
				.appendTo( tableContainer );
	
			// When scrolling (X or Y) we want to set the width of the table as 
			// appropriate. However, when not scrolling leave the table width as it
			// is. This results in slightly different, but I think correct behaviour
			if ( scrollX && scrollXInner ) {
				tmpTable.width( scrollXInner );
			}
			else if ( scrollX ) {
				tmpTable.css( 'width', 'auto' );
				tmpTable.removeAttr('width');
	
				// If there is no width attribute or style, then allow the table to
				// collapse
				if ( tmpTable.width() < tableContainer.clientWidth && tableWidthAttr ) {
					tmpTable.width( tableContainer.clientWidth );
				}
			}
			else if ( scrollY ) {
				tmpTable.width( tableContainer.clientWidth );
			}
			else if ( tableWidthAttr ) {
				tmpTable.width( tableWidthAttr );
			}
	
			// Get the width of each column in the constructed table - we need to
			// know the inner width (so it can be assigned to the other table's
			// cells) and the outer width so we can calculate the full width of the
			// table. This is safe since DataTables requires a unique cell for each
			// column, but if ever a header can span multiple columns, this will
			// need to be modified.
			var total = 0;
			for ( i=0 ; i<visibleColumns.length ; i++ ) {
				var cell = $(headerCells[i]);
				var border = cell.outerWidth() - cell.width();
	
				// Use getBounding... where possible (not IE8-) because it can give
				// sub-pixel accuracy, which we then want to round up!
				var bounding = browser.bBounding ?
					Math.ceil( headerCells[i].getBoundingClientRect().width ) :
					cell.outerWidth();
	
				// Total is tracked to remove any sub-pixel errors as the outerWidth
				// of the table might not equal the total given here (IE!).
				total += bounding;
	
				// Width for each column to use
				columns[ visibleColumns[i] ].sWidth = _fnStringToCss( bounding - border );
			}
	
			table.style.width = _fnStringToCss( total );
	
			// Finished with the table - ditch it
			holder.remove();
		}
	
		// If there is a width attr, we want to attach an event listener which
		// allows the table sizing to automatically adjust when the window is
		// resized. Use the width attr rather than CSS, since we can't know if the
		// CSS is a relative value or absolute - DOM read is always px.
		if ( tableWidthAttr ) {
			table.style.width = _fnStringToCss( tableWidthAttr );
		}
	
		if ( (tableWidthAttr || scrollX) && ! oSettings._reszEvt ) {
			var bindResize = function () {
				$(window).on('resize.DT-'+oSettings.sInstance, _fnThrottle( function () {
					_fnAdjustColumnSizing( oSettings );
				} ) );
			};
	
			// IE6/7 will crash if we bind a resize event handler on page load.
			// To be removed in 1.11 which drops IE6/7 support
			if ( ie67 ) {
				setTimeout( bindResize, 1000 );
			}
			else {
				bindResize();
			}
	
			oSettings._reszEvt = true;
		}
	}
	
	
	/**
	 * Throttle the calls to a function. Arguments and context are maintained for
	 * the throttled function
	 *  @param {function} fn Function to be called
	 *  @param {int} [freq=200] call frequency in mS
	 *  @returns {function} wrapped function
	 *  @memberof DataTable#oApi
	 */
	var _fnThrottle = DataTable.util.throttle;
	
	
	/**
	 * Convert a CSS unit width to pixels (e.g. 2em)
	 *  @param {string} width width to be converted
	 *  @param {node} parent parent to get the with for (required for relative widths) - optional
	 *  @returns {int} width in pixels
	 *  @memberof DataTable#oApi
	 */
	function _fnConvertToWidth ( width, parent )
	{
		if ( ! width ) {
			return 0;
		}
	
		var n = $('<div/>')
			.css( 'width', _fnStringToCss( width ) )
			.appendTo( parent || document.body );
	
		var val = n[0].offsetWidth;
		n.remove();
	
		return val;
	}
	
	
	/**
	 * Get the widest node
	 *  @param {object} settings dataTables settings object
	 *  @param {int} colIdx column of interest
	 *  @returns {node} widest table node
	 *  @memberof DataTable#oApi
	 */
	function _fnGetWidestNode( settings, colIdx )
	{
		var idx = _fnGetMaxLenString( settings, colIdx );
		if ( idx < 0 ) {
			return null;
		}
	
		var data = settings.aoData[ idx ];
		return ! data.nTr ? // Might not have been created when deferred rendering
			$('<td/>').html( _fnGetCellData( settings, idx, colIdx, 'display' ) )[0] :
			data.anCells[ colIdx ];
	}
	
	
	/**
	 * Get the maximum strlen for each data column
	 *  @param {object} settings dataTables settings object
	 *  @param {int} colIdx column of interest
	 *  @returns {string} max string length for each column
	 *  @memberof DataTable#oApi
	 */
	function _fnGetMaxLenString( settings, colIdx )
	{
		var s, max=-1, maxIdx = -1;
	
		for ( var i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
			s = _fnGetCellData( settings, i, colIdx, 'display' )+'';
			s = s.replace( __re_html_remove, '' );
			s = s.replace( /&nbsp;/g, ' ' );
	
			if ( s.length > max ) {
				max = s.length;
				maxIdx = i;
			}
		}
	
		return maxIdx;
	}
	
	
	/**
	 * Append a CSS unit (only if required) to a string
	 *  @param {string} value to css-ify
	 *  @returns {string} value with css unit
	 *  @memberof DataTable#oApi
	 */
	function _fnStringToCss( s )
	{
		if ( s === null ) {
			return '0px';
		}
	
		if ( typeof s == 'number' ) {
			return s < 0 ?
				'0px' :
				s+'px';
		}
	
		// Check it has a unit character already
		return s.match(/\d$/) ?
			s+'px' :
			s;
	}
	
	
	
	function _fnSortFlatten ( settings )
	{
		var
			i, iLen, k, kLen,
			aSort = [],
			aiOrig = [],
			aoColumns = settings.aoColumns,
			aDataSort, iCol, sType, srcCol,
			fixed = settings.aaSortingFixed,
			fixedObj = $.isPlainObject( fixed ),
			nestedSort = [],
			add = function ( a ) {
				if ( a.length && ! Array.isArray( a[0] ) ) {
					// 1D array
					nestedSort.push( a );
				}
				else {
					// 2D array
					$.merge( nestedSort, a );
				}
			};
	
		// Build the sort array, with pre-fix and post-fix options if they have been
		// specified
		if ( Array.isArray( fixed ) ) {
			add( fixed );
		}
	
		if ( fixedObj && fixed.pre ) {
			add( fixed.pre );
		}
	
		add( settings.aaSorting );
	
		if (fixedObj && fixed.post ) {
			add( fixed.post );
		}
	
		for ( i=0 ; i<nestedSort.length ; i++ )
		{
			srcCol = nestedSort[i][0];
			aDataSort = aoColumns[ srcCol ].aDataSort;
	
			for ( k=0, kLen=aDataSort.length ; k<kLen ; k++ )
			{
				iCol = aDataSort[k];
				sType = aoColumns[ iCol ].sType || 'string';
	
				if ( nestedSort[i]._idx === undefined ) {
					nestedSort[i]._idx = $.inArray( nestedSort[i][1], aoColumns[iCol].asSorting );
				}
	
				aSort.push( {
					src:       srcCol,
					col:       iCol,
					dir:       nestedSort[i][1],
					index:     nestedSort[i]._idx,
					type:      sType,
					formatter: DataTable.ext.type.order[ sType+"-pre" ]
				} );
			}
		}
	
		return aSort;
	}
	
	/**
	 * Change the order of the table
	 *  @param {object} oSettings dataTables settings object
	 *  @memberof DataTable#oApi
	 *  @todo This really needs split up!
	 */
	function _fnSort ( oSettings )
	{
		var
			i, ien, iLen, j, jLen, k, kLen,
			sDataType, nTh,
			aiOrig = [],
			oExtSort = DataTable.ext.type.order,
			aoData = oSettings.aoData,
			aoColumns = oSettings.aoColumns,
			aDataSort, data, iCol, sType, oSort,
			formatters = 0,
			sortCol,
			displayMaster = oSettings.aiDisplayMaster,
			aSort;
	
		// Resolve any column types that are unknown due to addition or invalidation
		// @todo Can this be moved into a 'data-ready' handler which is called when
		//   data is going to be used in the table?
		_fnColumnTypes( oSettings );
	
		aSort = _fnSortFlatten( oSettings );
	
		for ( i=0, ien=aSort.length ; i<ien ; i++ ) {
			sortCol = aSort[i];
	
			// Track if we can use the fast sort algorithm
			if ( sortCol.formatter ) {
				formatters++;
			}
	
			// Load the data needed for the sort, for each cell
			_fnSortData( oSettings, sortCol.col );
		}
	
		/* No sorting required if server-side or no sorting array */
		if ( _fnDataSource( oSettings ) != 'ssp' && aSort.length !== 0 )
		{
			// Create a value - key array of the current row positions such that we can use their
			// current position during the sort, if values match, in order to perform stable sorting
			for ( i=0, iLen=displayMaster.length ; i<iLen ; i++ ) {
				aiOrig[ displayMaster[i] ] = i;
			}
	
			/* Do the sort - here we want multi-column sorting based on a given data source (column)
			 * and sorting function (from oSort) in a certain direction. It's reasonably complex to
			 * follow on it's own, but this is what we want (example two column sorting):
			 *  fnLocalSorting = function(a,b){
			 *    var iTest;
			 *    iTest = oSort['string-asc']('data11', 'data12');
			 *      if (iTest !== 0)
			 *        return iTest;
			 *    iTest = oSort['numeric-desc']('data21', 'data22');
			 *    if (iTest !== 0)
			 *      return iTest;
			 *    return oSort['numeric-asc']( aiOrig[a], aiOrig[b] );
			 *  }
			 * Basically we have a test for each sorting column, if the data in that column is equal,
			 * test the next column. If all columns match, then we use a numeric sort on the row
			 * positions in the original data array to provide a stable sort.
			 *
			 * Note - I know it seems excessive to have two sorting methods, but the first is around
			 * 15% faster, so the second is only maintained for backwards compatibility with sorting
			 * methods which do not have a pre-sort formatting function.
			 */
			if ( formatters === aSort.length ) {
				// All sort types have formatting functions
				displayMaster.sort( function ( a, b ) {
					var
						x, y, k, test, sort,
						len=aSort.length,
						dataA = aoData[a]._aSortData,
						dataB = aoData[b]._aSortData;
	
					for ( k=0 ; k<len ; k++ ) {
						sort = aSort[k];
	
						x = dataA[ sort.col ];
						y = dataB[ sort.col ];
	
						test = x<y ? -1 : x>y ? 1 : 0;
						if ( test !== 0 ) {
							return sort.dir === 'asc' ? test : -test;
						}
					}
	
					x = aiOrig[a];
					y = aiOrig[b];
					return x<y ? -1 : x>y ? 1 : 0;
				} );
			}
			else {
				// Depreciated - remove in 1.11 (providing a plug-in option)
				// Not all sort types have formatting methods, so we have to call their sorting
				// methods.
				displayMaster.sort( function ( a, b ) {
					var
						x, y, k, l, test, sort, fn,
						len=aSort.length,
						dataA = aoData[a]._aSortData,
						dataB = aoData[b]._aSortData;
	
					for ( k=0 ; k<len ; k++ ) {
						sort = aSort[k];
	
						x = dataA[ sort.col ];
						y = dataB[ sort.col ];
	
						fn = oExtSort[ sort.type+"-"+sort.dir ] || oExtSort[ "string-"+sort.dir ];
						test = fn( x, y );
						if ( test !== 0 ) {
							return test;
						}
					}
	
					x = aiOrig[a];
					y = aiOrig[b];
					return x<y ? -1 : x>y ? 1 : 0;
				} );
			}
		}
	
		/* Tell the draw function that we have sorted the data */
		oSettings.bSorted = true;
	}
	
	
	function _fnSortAria ( settings )
	{
		var label;
		var nextSort;
		var columns = settings.aoColumns;
		var aSort = _fnSortFlatten( settings );
		var oAria = settings.oLanguage.oAria;
	
		// ARIA attributes - need to loop all columns, to update all (removing old
		// attributes as needed)
		for ( var i=0, iLen=columns.length ; i<iLen ; i++ )
		{
			var col = columns[i];
			var asSorting = col.asSorting;
			var sTitle = col.ariaTitle || col.sTitle.replace( /<.*?>/g, "" );
			var th = col.nTh;
	
			// IE7 is throwing an error when setting these properties with jQuery's
			// attr() and removeAttr() methods...
			th.removeAttribute('aria-sort');
	
			/* In ARIA only the first sorting column can be marked as sorting - no multi-sort option */
			if ( col.bSortable ) {
				if ( aSort.length > 0 && aSort[0].col == i ) {
					th.setAttribute('aria-sort', aSort[0].dir=="asc" ? "ascending" : "descending" );
					nextSort = asSorting[ aSort[0].index+1 ] || asSorting[0];
				}
				else {
					nextSort = asSorting[0];
				}
	
				label = sTitle + ( nextSort === "asc" ?
					oAria.sSortAscending :
					oAria.sSortDescending
				);
			}
			else {
				label = sTitle;
			}
	
			th.setAttribute('aria-label', label);
		}
	}
	
	
	/**
	 * Function to run on user sort request
	 *  @param {object} settings dataTables settings object
	 *  @param {node} attachTo node to attach the handler to
	 *  @param {int} colIdx column sorting index
	 *  @param {boolean} [append=false] Append the requested sort to the existing
	 *    sort if true (i.e. multi-column sort)
	 *  @param {function} [callback] callback function
	 *  @memberof DataTable#oApi
	 */
	function _fnSortListener ( settings, colIdx, append, callback )
	{
		var col = settings.aoColumns[ colIdx ];
		var sorting = settings.aaSorting;
		var asSorting = col.asSorting;
		var nextSortIdx;
		var next = function ( a, overflow ) {
			var idx = a._idx;
			if ( idx === undefined ) {
				idx = $.inArray( a[1], asSorting );
			}
	
			return idx+1 < asSorting.length ?
				idx+1 :
				overflow ?
					null :
					0;
		};
	
		// Convert to 2D array if needed
		if ( typeof sorting[0] === 'number' ) {
			sorting = settings.aaSorting = [ sorting ];
		}
	
		// If appending the sort then we are multi-column sorting
		if ( append && settings.oFeatures.bSortMulti ) {
			// Are we already doing some kind of sort on this column?
			var sortIdx = $.inArray( colIdx, _pluck(sorting, '0') );
	
			if ( sortIdx !== -1 ) {
				// Yes, modify the sort
				nextSortIdx = next( sorting[sortIdx], true );
	
				if ( nextSortIdx === null && sorting.length === 1 ) {
					nextSortIdx = 0; // can't remove sorting completely
				}
	
				if ( nextSortIdx === null ) {
					sorting.splice( sortIdx, 1 );
				}
				else {
					sorting[sortIdx][1] = asSorting[ nextSortIdx ];
					sorting[sortIdx]._idx = nextSortIdx;
				}
			}
			else {
				// No sort on this column yet
				sorting.push( [ colIdx, asSorting[0], 0 ] );
				sorting[sorting.length-1]._idx = 0;
			}
		}
		else if ( sorting.length && sorting[0][0] == colIdx ) {
			// Single column - already sorting on this column, modify the sort
			nextSortIdx = next( sorting[0] );
	
			sorting.length = 1;
			sorting[0][1] = asSorting[ nextSortIdx ];
			sorting[0]._idx = nextSortIdx;
		}
		else {
			// Single column - sort only on this column
			sorting.length = 0;
			sorting.push( [ colIdx, asSorting[0] ] );
			sorting[0]._idx = 0;
		}
	
		// Run the sort by calling a full redraw
		_fnReDraw( settings );
	
		// callback used for async user interaction
		if ( typeof callback == 'function' ) {
			callback( settings );
		}
	}
	
	
	/**
	 * Attach a sort handler (click) to a node
	 *  @param {object} settings dataTables settings object
	 *  @param {node} attachTo node to attach the handler to
	 *  @param {int} colIdx column sorting index
	 *  @param {function} [callback] callback function
	 *  @memberof DataTable#oApi
	 */
	function _fnSortAttachListener ( settings, attachTo, colIdx, callback )
	{
		var col = settings.aoColumns[ colIdx ];
	
		_fnBindAction( attachTo, {}, function (e) {
			/* If the column is not sortable - don't to anything */
			if ( col.bSortable === false ) {
				return;
			}
	
			// If processing is enabled use a timeout to allow the processing
			// display to be shown - otherwise to it synchronously
			if ( settings.oFeatures.bProcessing ) {
				_fnProcessingDisplay( settings, true );
	
				setTimeout( function() {
					_fnSortListener( settings, colIdx, e.shiftKey, callback );
	
					// In server-side processing, the draw callback will remove the
					// processing display
					if ( _fnDataSource( settings ) !== 'ssp' ) {
						_fnProcessingDisplay( settings, false );
					}
				}, 0 );
			}
			else {
				_fnSortListener( settings, colIdx, e.shiftKey, callback );
			}
		} );
	}
	
	
	/**
	 * Set the sorting classes on table's body, Note: it is safe to call this function
	 * when bSort and bSortClasses are false
	 *  @param {object} oSettings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnSortingClasses( settings )
	{
		var oldSort = settings.aLastSort;
		var sortClass = settings.oClasses.sSortColumn;
		var sort = _fnSortFlatten( settings );
		var features = settings.oFeatures;
		var i, ien, colIdx;
	
		if ( features.bSort && features.bSortClasses ) {
			// Remove old sorting classes
			for ( i=0, ien=oldSort.length ; i<ien ; i++ ) {
				colIdx = oldSort[i].src;
	
				// Remove column sorting
				$( _pluck( settings.aoData, 'anCells', colIdx ) )
					.removeClass( sortClass + (i<2 ? i+1 : 3) );
			}
	
			// Add new column sorting
			for ( i=0, ien=sort.length ; i<ien ; i++ ) {
				colIdx = sort[i].src;
	
				$( _pluck( settings.aoData, 'anCells', colIdx ) )
					.addClass( sortClass + (i<2 ? i+1 : 3) );
			}
		}
	
		settings.aLastSort = sort;
	}
	
	
	// Get the data to sort a column, be it from cache, fresh (populating the
	// cache), or from a sort formatter
	function _fnSortData( settings, idx )
	{
		// Custom sorting function - provided by the sort data type
		var column = settings.aoColumns[ idx ];
		var customSort = DataTable.ext.order[ column.sSortDataType ];
		var customData;
	
		if ( customSort ) {
			customData = customSort.call( settings.oInstance, settings, idx,
				_fnColumnIndexToVisible( settings, idx )
			);
		}
	
		// Use / populate cache
		var row, cellData;
		var formatter = DataTable.ext.type.order[ column.sType+"-pre" ];
	
		for ( var i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
			row = settings.aoData[i];
	
			if ( ! row._aSortData ) {
				row._aSortData = [];
			}
	
			if ( ! row._aSortData[idx] || customSort ) {
				cellData = customSort ?
					customData[i] : // If there was a custom sort function, use data from there
					_fnGetCellData( settings, i, idx, 'sort' );
	
				row._aSortData[ idx ] = formatter ?
					formatter( cellData ) :
					cellData;
			}
		}
	}
	
	
	
	/**
	 * Save the state of a table
	 *  @param {object} oSettings dataTables settings object
	 *  @memberof DataTable#oApi
	 */
	function _fnSaveState ( settings )
	{
		if ( !settings.oFeatures.bStateSave || settings.bDestroying )
		{
			return;
		}
	
		/* Store the interesting variables */
		var state = {
			time:    +new Date(),
			start:   settings._iDisplayStart,
			length:  settings._iDisplayLength,
			order:   $.extend( true, [], settings.aaSorting ),
			search:  _fnSearchToCamel( settings.oPreviousSearch ),
			columns: $.map( settings.aoColumns, function ( col, i ) {
				return {
					visible: col.bVisible,
					search: _fnSearchToCamel( settings.aoPreSearchCols[i] )
				};
			} )
		};
	
		_fnCallbackFire( settings, "aoStateSaveParams", 'stateSaveParams', [settings, state] );
	
		settings.oSavedState = state;
		settings.fnStateSaveCallback.call( settings.oInstance, settings, state );
	}
	
	
	/**
	 * Attempt to load a saved table state
	 *  @param {object} oSettings dataTables settings object
	 *  @param {object} oInit DataTables init object so we can override settings
	 *  @param {function} callback Callback to execute when the state has been loaded
	 *  @memberof DataTable#oApi
	 */
	function _fnLoadState ( settings, oInit, callback )
	{
		var i, ien;
		var columns = settings.aoColumns;
		var loaded = function ( s ) {
			if ( ! s || ! s.time ) {
				callback();
				return;
			}
	
			// Allow custom and plug-in manipulation functions to alter the saved data set and
			// cancelling of loading by returning false
			var abStateLoad = _fnCallbackFire( settings, 'aoStateLoadParams', 'stateLoadParams', [settings, s] );
			if ( $.inArray( false, abStateLoad ) !== -1 ) {
				callback();
				return;
			}
	
			// Reject old data
			var duration = settings.iStateDuration;
			if ( duration > 0 && s.time < +new Date() - (duration*1000) ) {
				callback();
				return;
			}
	
			// Number of columns have changed - all bets are off, no restore of settings
			if ( s.columns && columns.length !== s.columns.length ) {
				callback();
				return;
			}
	
			// Store the saved state so it might be accessed at any time
			settings.oLoadedState = $.extend( true, {}, s );
	
			// Restore key features - todo - for 1.11 this needs to be done by
			// subscribed events
			if ( s.start !== undefined ) {
				settings._iDisplayStart    = s.start;
				settings.iInitDisplayStart = s.start;
			}
			if ( s.length !== undefined ) {
				settings._iDisplayLength   = s.length;
			}
	
			// Order
			if ( s.order !== undefined ) {
				settings.aaSorting = [];
				$.each( s.order, function ( i, col ) {
					settings.aaSorting.push( col[0] >= columns.length ?
						[ 0, col[1] ] :
						col
					);
				} );
			}
	
			// Search
			if ( s.search !== undefined ) {
				$.extend( settings.oPreviousSearch, _fnSearchToHung( s.search ) );
			}
	
			// Columns
			//
			if ( s.columns ) {
				for ( i=0, ien=s.columns.length ; i<ien ; i++ ) {
					var col = s.columns[i];
	
					// Visibility
					if ( col.visible !== undefined ) {
						columns[i].bVisible = col.visible;
					}
	
					// Search
					if ( col.search !== undefined ) {
						$.extend( settings.aoPreSearchCols[i], _fnSearchToHung( col.search ) );
					}
				}
			}
	
			_fnCallbackFire( settings, 'aoStateLoaded', 'stateLoaded', [settings, s] );
			callback();
		};
	
		if ( ! settings.oFeatures.bStateSave ) {
			callback();
			return;
		}
	
		var state = settings.fnStateLoadCallback.call( settings.oInstance, settings, loaded );
	
		if ( state !== undefined ) {
			loaded( state );
		}
		// otherwise, wait for the loaded callback to be executed
	}
	
	
	/**
	 * Return the settings object for a particular table
	 *  @param {node} table table we are using as a dataTable
	 *  @returns {object} Settings object - or null if not found
	 *  @memberof DataTable#oApi
	 */
	function _fnSettingsFromNode ( table )
	{
		var settings = DataTable.settings;
		var idx = $.inArray( table, _pluck( settings, 'nTable' ) );
	
		return idx !== -1 ?
			settings[ idx ] :
			null;
	}
	
	
	/**
	 * Log an error message
	 *  @param {object} settings dataTables settings object
	 *  @param {int} level log error messages, or display them to the user
	 *  @param {string} msg error message
	 *  @param {int} tn Technical note id to get more information about the error.
	 *  @memberof DataTable#oApi
	 */
	function _fnLog( settings, level, msg, tn )
	{
		msg = 'DataTables warning: '+
			(settings ? 'table id='+settings.sTableId+' - ' : '')+msg;
	
		if ( tn ) {
			msg += '. For more information about this error, please see '+
			'http://datatables.net/tn/'+tn;
		}
	
		if ( ! level  ) {
			// Backwards compatibility pre 1.10
			var ext = DataTable.ext;
			var type = ext.sErrMode || ext.errMode;
	
			if ( settings ) {
				_fnCallbackFire( settings, null, 'error', [ settings, tn, msg ] );
			}
	
			if ( type == 'alert' ) {
				alert( msg );
			}
			else if ( type == 'throw' ) {
				throw new Error(msg);
			}
			else if ( typeof type == 'function' ) {
				type( settings, tn, msg );
			}
		}
		else if ( window.console && console.log ) {
			console.log( msg );
		}
	}
	
	
	/**
	 * See if a property is defined on one object, if so assign it to the other object
	 *  @param {object} ret target object
	 *  @param {object} src source object
	 *  @param {string} name property
	 *  @param {string} [mappedName] name to map too - optional, name used if not given
	 *  @memberof DataTable#oApi
	 */
	function _fnMap( ret, src, name, mappedName )
	{
		if ( Array.isArray( name ) ) {
			$.each( name, function (i, val) {
				if ( Array.isArray( val ) ) {
					_fnMap( ret, src, val[0], val[1] );
				}
				else {
					_fnMap( ret, src, val );
				}
			} );
	
			return;
		}
	
		if ( mappedName === undefined ) {
			mappedName = name;
		}
	
		if ( src[name] !== undefined ) {
			ret[mappedName] = src[name];
		}
	}
	
	
	/**
	 * Extend objects - very similar to jQuery.extend, but deep copy objects, and
	 * shallow copy arrays. The reason we need to do this, is that we don't want to
	 * deep copy array init values (such as aaSorting) since the dev wouldn't be
	 * able to override them, but we do want to deep copy arrays.
	 *  @param {object} out Object to extend
	 *  @param {object} extender Object from which the properties will be applied to
	 *      out
	 *  @param {boolean} breakRefs If true, then arrays will be sliced to take an
	 *      independent copy with the exception of the `data` or `aaData` parameters
	 *      if they are present. This is so you can pass in a collection to
	 *      DataTables and have that used as your data source without breaking the
	 *      references
	 *  @returns {object} out Reference, just for convenience - out === the return.
	 *  @memberof DataTable#oApi
	 *  @todo This doesn't take account of arrays inside the deep copied objects.
	 */
	function _fnExtend( out, extender, breakRefs )
	{
		var val;
	
		for ( var prop in extender ) {
			if ( extender.hasOwnProperty(prop) ) {
				val = extender[prop];
	
				if ( $.isPlainObject( val ) ) {
					if ( ! $.isPlainObject( out[prop] ) ) {
						out[prop] = {};
					}
					$.extend( true, out[prop], val );
				}
				else if ( breakRefs && prop !== 'data' && prop !== 'aaData' && Array.isArray(val) ) {
					out[prop] = val.slice();
				}
				else {
					out[prop] = val;
				}
			}
		}
	
		return out;
	}
	
	
	/**
	 * Bind an event handers to allow a click or return key to activate the callback.
	 * This is good for accessibility since a return on the keyboard will have the
	 * same effect as a click, if the element has focus.
	 *  @param {element} n Element to bind the action to
	 *  @param {object} oData Data object to pass to the triggered function
	 *  @param {function} fn Callback function for when the event is triggered
	 *  @memberof DataTable#oApi
	 */
	function _fnBindAction( n, oData, fn )
	{
		$(n)
			.on( 'click.DT', oData, function (e) {
					$(n).trigger('blur'); // Remove focus outline for mouse users
					fn(e);
				} )
			.on( 'keypress.DT', oData, function (e){
					if ( e.which === 13 ) {
						e.preventDefault();
						fn(e);
					}
				} )
			.on( 'selectstart.DT', function () {
					/* Take the brutal approach to cancelling text selection */
					return false;
				} );
	}
	
	
	/**
	 * Register a callback function. Easily allows a callback function to be added to
	 * an array store of callback functions that can then all be called together.
	 *  @param {object} oSettings dataTables settings object
	 *  @param {string} sStore Name of the array storage for the callbacks in oSettings
	 *  @param {function} fn Function to be called back
	 *  @param {string} sName Identifying name for the callback (i.e. a label)
	 *  @memberof DataTable#oApi
	 */
	function _fnCallbackReg( oSettings, sStore, fn, sName )
	{
		if ( fn )
		{
			oSettings[sStore].push( {
				"fn": fn,
				"sName": sName
			} );
		}
	}
	
	
	/**
	 * Fire callback functions and trigger events. Note that the loop over the
	 * callback array store is done backwards! Further note that you do not want to
	 * fire off triggers in time sensitive applications (for example cell creation)
	 * as its slow.
	 *  @param {object} settings dataTables settings object
	 *  @param {string} callbackArr Name of the array storage for the callbacks in
	 *      oSettings
	 *  @param {string} eventName Name of the jQuery custom event to trigger. If
	 *      null no trigger is fired
	 *  @param {array} args Array of arguments to pass to the callback function /
	 *      trigger
	 *  @memberof DataTable#oApi
	 */
	function _fnCallbackFire( settings, callbackArr, eventName, args )
	{
		var ret = [];
	
		if ( callbackArr ) {
			ret = $.map( settings[callbackArr].slice().reverse(), function (val, i) {
				return val.fn.apply( settings.oInstance, args );
			} );
		}
	
		if ( eventName !== null ) {
			var e = $.Event( eventName+'.dt' );
	
			$(settings.nTable).trigger( e, args );
	
			ret.push( e.result );
		}
	
		return ret;
	}
	
	
	function _fnLengthOverflow ( settings )
	{
		var
			start = settings._iDisplayStart,
			end = settings.fnDisplayEnd(),
			len = settings._iDisplayLength;
	
		/* If we have space to show extra rows (backing up from the end point - then do so */
		if ( start >= end )
		{
			start = end - len;
		}
	
		// Keep the start record on the current page
		start -= (start % len);
	
		if ( len === -1 || start < 0 )
		{
			start = 0;
		}
	
		settings._iDisplayStart = start;
	}
	
	
	function _fnRenderer( settings, type )
	{
		var renderer = settings.renderer;
		var host = DataTable.ext.renderer[type];
	
		if ( $.isPlainObject( renderer ) && renderer[type] ) {
			// Specific renderer for this type. If available use it, otherwise use
			// the default.
			return host[renderer[type]] || host._;
		}
		else if ( typeof renderer === 'string' ) {
			// Common renderer - if there is one available for this type use it,
			// otherwise use the default
			return host[renderer] || host._;
		}
	
		// Use the default
		return host._;
	}
	
	
	/**
	 * Detect the data source being used for the table. Used to simplify the code
	 * a little (ajax) and to make it compress a little smaller.
	 *
	 *  @param {object} settings dataTables settings object
	 *  @returns {string} Data source
	 *  @memberof DataTable#oApi
	 */
	function _fnDataSource ( settings )
	{
		if ( settings.oFeatures.bServerSide ) {
			return 'ssp';
		}
		else if ( settings.ajax || settings.sAjaxSource ) {
			return 'ajax';
		}
		return 'dom';
	}
	

	
	
	/**
	 * Computed structure of the DataTables API, defined by the options passed to
	 * `DataTable.Api.register()` when building the API.
	 *
	 * The structure is built in order to speed creation and extension of the Api
	 * objects since the extensions are effectively pre-parsed.
	 *
	 * The array is an array of objects with the following structure, where this
	 * base array represents the Api prototype base:
	 *
	 *     [
	 *       {
	 *         name:      'data'                -- string   - Property name
	 *         val:       function () {},       -- function - Api method (or undefined if just an object
	 *         methodExt: [ ... ],              -- array    - Array of Api object definitions to extend the method result
	 *         propExt:   [ ... ]               -- array    - Array of Api object definitions to extend the property
	 *       },
	 *       {
	 *         name:     'row'
	 *         val:       {},
	 *         methodExt: [ ... ],
	 *         propExt:   [
	 *           {
	 *             name:      'data'
	 *             val:       function () {},
	 *             methodExt: [ ... ],
	 *             propExt:   [ ... ]
	 *           },
	 *           ...
	 *         ]
	 *       }
	 *     ]
	 *
	 * @type {Array}
	 * @ignore
	 */
	var __apiStruct = [];
	
	
	/**
	 * `Array.prototype` reference.
	 *
	 * @type object
	 * @ignore
	 */
	var __arrayProto = Array.prototype;
	
	
	/**
	 * Abstraction for `context` parameter of the `Api` constructor to allow it to
	 * take several different forms for ease of use.
	 *
	 * Each of the input parameter types will be converted to a DataTables settings
	 * object where possible.
	 *
	 * @param  {string|node|jQuery|object} mixed DataTable identifier. Can be one
	 *   of:
	 *
	 *   * `string` - jQuery selector. Any DataTables' matching the given selector
	 *     with be found and used.
	 *   * `node` - `TABLE` node which has already been formed into a DataTable.
	 *   * `jQuery` - A jQuery object of `TABLE` nodes.
	 *   * `object` - DataTables settings object
	 *   * `DataTables.Api` - API instance
	 * @return {array|null} Matching DataTables settings objects. `null` or
	 *   `undefined` is returned if no matching DataTable is found.
	 * @ignore
	 */
	var _toSettings = function ( mixed )
	{
		var idx, jq;
		var settings = DataTable.settings;
		var tables = $.map( settings, function (el, i) {
			return el.nTable;
		} );
	
		if ( ! mixed ) {
			return [];
		}
		else if ( mixed.nTable && mixed.oApi ) {
			// DataTables settings object
			return [ mixed ];
		}
		else if ( mixed.nodeName && mixed.nodeName.toLowerCase() === 'table' ) {
			// Table node
			idx = $.inArray( mixed, tables );
			return idx !== -1 ? [ settings[idx] ] : null;
		}
		else if ( mixed && typeof mixed.settings === 'function' ) {
			return mixed.settings().toArray();
		}
		else if ( typeof mixed === 'string' ) {
			// jQuery selector
			jq = $(mixed);
		}
		else if ( mixed instanceof $ ) {
			// jQuery object (also DataTables instance)
			jq = mixed;
		}
	
		if ( jq ) {
			return jq.map( function(i) {
				idx = $.inArray( this, tables );
				return idx !== -1 ? settings[idx] : null;
			} ).toArray();
		}
	};
	
	
	/**
	 * DataTables API class - used to control and interface with  one or more
	 * DataTables enhanced tables.
	 *
	 * The API class is heavily based on jQuery, presenting a chainable interface
	 * that you can use to interact with tables. Each instance of the API class has
	 * a "context" - i.e. the tables that it will operate on. This could be a single
	 * table, all tables on a page or a sub-set thereof.
	 *
	 * Additionally the API is designed to allow you to easily work with the data in
	 * the tables, retrieving and manipulating it as required. This is done by
	 * presenting the API class as an array like interface. The contents of the
	 * array depend upon the actions requested by each method (for example
	 * `rows().nodes()` will return an array of nodes, while `rows().data()` will
	 * return an array of objects or arrays depending upon your table's
	 * configuration). The API object has a number of array like methods (`push`,
	 * `pop`, `reverse` etc) as well as additional helper methods (`each`, `pluck`,
	 * `unique` etc) to assist your working with the data held in a table.
	 *
	 * Most methods (those which return an Api instance) are chainable, which means
	 * the return from a method call also has all of the methods available that the
	 * top level object had. For example, these two calls are equivalent:
	 *
	 *     // Not chained
	 *     api.row.add( {...} );
	 *     api.draw();
	 *
	 *     // Chained
	 *     api.row.add( {...} ).draw();
	 *
	 * @class DataTable.Api
	 * @param {array|object|string|jQuery} context DataTable identifier. This is
	 *   used to define which DataTables enhanced tables this API will operate on.
	 *   Can be one of:
	 *
	 *   * `string` - jQuery selector. Any DataTables' matching the given selector
	 *     with be found and used.
	 *   * `node` - `TABLE` node which has already been formed into a DataTable.
	 *   * `jQuery` - A jQuery object of `TABLE` nodes.
	 *   * `object` - DataTables settings object
	 * @param {array} [data] Data to initialise the Api instance with.
	 *
	 * @example
	 *   // Direct initialisation during DataTables construction
	 *   var api = $('#example').DataTable();
	 *
	 * @example
	 *   // Initialisation using a DataTables jQuery object
	 *   var api = $('#example').dataTable().api();
	 *
	 * @example
	 *   // Initialisation as a constructor
	 *   var api = new $.fn.DataTable.Api( 'table.dataTable' );
	 */
	_Api = function ( context, data )
	{
		if ( ! (this instanceof _Api) ) {
			return new _Api( context, data );
		}
	
		var settings = [];
		var ctxSettings = function ( o ) {
			var a = _toSettings( o );
			if ( a ) {
				settings.push.apply( settings, a );
			}
		};
	
		if ( Array.isArray( context ) ) {
			for ( var i=0, ien=context.length ; i<ien ; i++ ) {
				ctxSettings( context[i] );
			}
		}
		else {
			ctxSettings( context );
		}
	
		// Remove duplicates
		this.context = _unique( settings );
	
		// Initial data
		if ( data ) {
			$.merge( this, data );
		}
	
		// selector
		this.selector = {
			rows: null,
			cols: null,
			opts: null
		};
	
		_Api.extend( this, this, __apiStruct );
	};
	
	DataTable.Api = _Api;
	
	// Don't destroy the existing prototype, just extend it. Required for jQuery 2's
	// isPlainObject.
	$.extend( _Api.prototype, {
		any: function ()
		{
			return this.count() !== 0;
		},
	
	
		concat:  __arrayProto.concat,
	
	
		context: [], // array of table settings objects
	
	
		count: function ()
		{
			return this.flatten().length;
		},
	
	
		each: function ( fn )
		{
			for ( var i=0, ien=this.length ; i<ien; i++ ) {
				fn.call( this, this[i], i, this );
			}
	
			return this;
		},
	
	
		eq: function ( idx )
		{
			var ctx = this.context;
	
			return ctx.length > idx ?
				new _Api( ctx[idx], this[idx] ) :
				null;
		},
	
	
		filter: function ( fn )
		{
			var a = [];
	
			if ( __arrayProto.filter ) {
				a = __arrayProto.filter.call( this, fn, this );
			}
			else {
				// Compatibility for browsers without EMCA-252-5 (JS 1.6)
				for ( var i=0, ien=this.length ; i<ien ; i++ ) {
					if ( fn.call( this, this[i], i, this ) ) {
						a.push( this[i] );
					}
				}
			}
	
			return new _Api( this.context, a );
		},
	
	
		flatten: function ()
		{
			var a = [];
			return new _Api( this.context, a.concat.apply( a, this.toArray() ) );
		},
	
	
		join:    __arrayProto.join,
	
	
		indexOf: __arrayProto.indexOf || function (obj, start)
		{
			for ( var i=(start || 0), ien=this.length ; i<ien ; i++ ) {
				if ( this[i] === obj ) {
					return i;
				}
			}
			return -1;
		},
	
		iterator: function ( flatten, type, fn, alwaysNew ) {
			var
				a = [], ret,
				i, ien, j, jen,
				context = this.context,
				rows, items, item,
				selector = this.selector;
	
			// Argument shifting
			if ( typeof flatten === 'string' ) {
				alwaysNew = fn;
				fn = type;
				type = flatten;
				flatten = false;
			}
	
			for ( i=0, ien=context.length ; i<ien ; i++ ) {
				var apiInst = new _Api( context[i] );
	
				if ( type === 'table' ) {
					ret = fn.call( apiInst, context[i], i );
	
					if ( ret !== undefined ) {
						a.push( ret );
					}
				}
				else if ( type === 'columns' || type === 'rows' ) {
					// this has same length as context - one entry for each table
					ret = fn.call( apiInst, context[i], this[i], i );
	
					if ( ret !== undefined ) {
						a.push( ret );
					}
				}
				else if ( type === 'column' || type === 'column-rows' || type === 'row' || type === 'cell' ) {
					// columns and rows share the same structure.
					// 'this' is an array of column indexes for each context
					items = this[i];
	
					if ( type === 'column-rows' ) {
						rows = _selector_row_indexes( context[i], selector.opts );
					}
	
					for ( j=0, jen=items.length ; j<jen ; j++ ) {
						item = items[j];
	
						if ( type === 'cell' ) {
							ret = fn.call( apiInst, context[i], item.row, item.column, i, j );
						}
						else {
							ret = fn.call( apiInst, context[i], item, i, j, rows );
						}
	
						if ( ret !== undefined ) {
							a.push( ret );
						}
					}
				}
			}
	
			if ( a.length || alwaysNew ) {
				var api = new _Api( context, flatten ? a.concat.apply( [], a ) : a );
				var apiSelector = api.selector;
				apiSelector.rows = selector.rows;
				apiSelector.cols = selector.cols;
				apiSelector.opts = selector.opts;
				return api;
			}
			return this;
		},
	
	
		lastIndexOf: __arrayProto.lastIndexOf || function (obj, start)
		{
			// Bit cheeky...
			return this.indexOf.apply( this.toArray.reverse(), arguments );
		},
	
	
		length:  0,
	
	
		map: function ( fn )
		{
			var a = [];
	
			if ( __arrayProto.map ) {
				a = __arrayProto.map.call( this, fn, this );
			}
			else {
				// Compatibility for browsers without EMCA-252-5 (JS 1.6)
				for ( var i=0, ien=this.length ; i<ien ; i++ ) {
					a.push( fn.call( this, this[i], i ) );
				}
			}
	
			return new _Api( this.context, a );
		},
	
	
		pluck: function ( prop )
		{
			return this.map( function ( el ) {
				return el[ prop ];
			} );
		},
	
		pop:     __arrayProto.pop,
	
	
		push:    __arrayProto.push,
	
	
		// Does not return an API instance
		reduce: __arrayProto.reduce || function ( fn, init )
		{
			return _fnReduce( this, fn, init, 0, this.length, 1 );
		},
	
	
		reduceRight: __arrayProto.reduceRight || function ( fn, init )
		{
			return _fnReduce( this, fn, init, this.length-1, -1, -1 );
		},
	
	
		reverse: __arrayProto.reverse,
	
	
		// Object with rows, columns and opts
		selector: null,
	
	
		shift:   __arrayProto.shift,
	
	
		slice: function () {
			return new _Api( this.context, this );
		},
	
	
		sort:    __arrayProto.sort, // ? name - order?
	
	
		splice:  __arrayProto.splice,
	
	
		toArray: function ()
		{
			return __arrayProto.slice.call( this );
		},
	
	
		to$: function ()
		{
			return $( this );
		},
	
	
		toJQuery: function ()
		{
			return $( this );
		},
	
	
		unique: function ()
		{
			return new _Api( this.context, _unique(this) );
		},
	
	
		unshift: __arrayProto.unshift
	} );
	
	
	_Api.extend = function ( scope, obj, ext )
	{
		// Only extend API instances and static properties of the API
		if ( ! ext.length || ! obj || ( ! (obj instanceof _Api) && ! obj.__dt_wrapper ) ) {
			return;
		}
	
		var
			i, ien,
			struct,
			methodScoping = function ( scope, fn, struc ) {
				return function () {
					var ret = fn.apply( scope, arguments );
	
					// Method extension
					_Api.extend( ret, ret, struc.methodExt );
					return ret;
				};
			};
	
		for ( i=0, ien=ext.length ; i<ien ; i++ ) {
			struct = ext[i];
	
			// Value
			obj[ struct.name ] = struct.type === 'function' ?
				methodScoping( scope, struct.val, struct ) :
				struct.type === 'object' ?
					{} :
					struct.val;
	
			obj[ struct.name ].__dt_wrapper = true;
	
			// Property extension
			_Api.extend( scope, obj[ struct.name ], struct.propExt );
		}
	};
	
	
	// @todo - Is there need for an augment function?
	// _Api.augment = function ( inst, name )
	// {
	// 	// Find src object in the structure from the name
	// 	var parts = name.split('.');
	
	// 	_Api.extend( inst, obj );
	// };
	
	
	//     [
	//       {
	//         name:      'data'                -- string   - Property name
	//         val:       function () {},       -- function - Api method (or undefined if just an object
	//         methodExt: [ ... ],              -- array    - Array of Api object definitions to extend the method result
	//         propExt:   [ ... ]               -- array    - Array of Api object definitions to extend the property
	//       },
	//       {
	//         name:     'row'
	//         val:       {},
	//         methodExt: [ ... ],
	//         propExt:   [
	//           {
	//             name:      'data'
	//             val:       function () {},
	//             methodExt: [ ... ],
	//             propExt:   [ ... ]
	//           },
	//           ...
	//         ]
	//       }
	//     ]
	
	_Api.register = _api_register = function ( name, val )
	{
		if ( Array.isArray( name ) ) {
			for ( var j=0, jen=name.length ; j<jen ; j++ ) {
				_Api.register( name[j], val );
			}
			return;
		}
	
		var
			i, ien,
			heir = name.split('.'),
			struct = __apiStruct,
			key, method;
	
		var find = function ( src, name ) {
			for ( var i=0, ien=src.length ; i<ien ; i++ ) {
				if ( src[i].name === name ) {
					return src[i];
				}
			}
			return null;
		};
	
		for ( i=0, ien=heir.length ; i<ien ; i++ ) {
			method = heir[i].indexOf('()') !== -1;
			key = method ?
				heir[i].replace('()', '') :
				heir[i];
	
			var src = find( struct, key );
			if ( ! src ) {
				src = {
					name:      key,
					val:       {},
					methodExt: [],
					propExt:   [],
					type:      'object'
				};
				struct.push( src );
			}
	
			if ( i === ien-1 ) {
				src.val = val;
				src.type = typeof val === 'function' ?
					'function' :
					$.isPlainObject( val ) ?
						'object' :
						'other';
			}
			else {
				struct = method ?
					src.methodExt :
					src.propExt;
			}
		}
	};
	
	_Api.registerPlural = _api_registerPlural = function ( pluralName, singularName, val ) {
		_Api.register( pluralName, val );
	
		_Api.register( singularName, function () {
			var ret = val.apply( this, arguments );
	
			if ( ret === this ) {
				// Returned item is the API instance that was passed in, return it
				return this;
			}
			else if ( ret instanceof _Api ) {
				// New API instance returned, want the value from the first item
				// in the returned array for the singular result.
				return ret.length ?
					Array.isArray( ret[0] ) ?
						new _Api( ret.context, ret[0] ) : // Array results are 'enhanced'
						ret[0] :
					undefined;
			}
	
			// Non-API return - just fire it back
			return ret;
		} );
	};
	
	
	/**
	 * Selector for HTML tables. Apply the given selector to the give array of
	 * DataTables settings objects.
	 *
	 * @param {string|integer} [selector] jQuery selector string or integer
	 * @param  {array} Array of DataTables settings objects to be filtered
	 * @return {array}
	 * @ignore
	 */
	var __table_selector = function ( selector, a )
	{
		if ( Array.isArray(selector) ) {
			return $.map( selector, function (item) {
				return __table_selector(item, a);
			} );
		}
	
		// Integer is used to pick out a table by index
		if ( typeof selector === 'number' ) {
			return [ a[ selector ] ];
		}
	
		// Perform a jQuery selector on the table nodes
		var nodes = $.map( a, function (el, i) {
			return el.nTable;
		} );
	
		return $(nodes)
			.filter( selector )
			.map( function (i) {
				// Need to translate back from the table node to the settings
				var idx = $.inArray( this, nodes );
				return a[ idx ];
			} )
			.toArray();
	};
	
	
	
	/**
	 * Context selector for the API's context (i.e. the tables the API instance
	 * refers to.
	 *
	 * @name    DataTable.Api#tables
	 * @param {string|integer} [selector] Selector to pick which tables the iterator
	 *   should operate on. If not given, all tables in the current context are
	 *   used. This can be given as a jQuery selector (for example `':gt(0)'`) to
	 *   select multiple tables or as an integer to select a single table.
	 * @returns {DataTable.Api} Returns a new API instance if a selector is given.
	 */
	_api_register( 'tables()', function ( selector ) {
		// A new instance is created if there was a selector specified
		return selector !== undefined && selector !== null ?
			new _Api( __table_selector( selector, this.context ) ) :
			this;
	} );
	
	
	_api_register( 'table()', function ( selector ) {
		var tables = this.tables( selector );
		var ctx = tables.context;
	
		// Truncate to the first matched table
		return ctx.length ?
			new _Api( ctx[0] ) :
			tables;
	} );
	
	
	_api_registerPlural( 'tables().nodes()', 'table().node()' , function () {
		return this.iterator( 'table', function ( ctx ) {
			return ctx.nTable;
		}, 1 );
	} );
	
	
	_api_registerPlural( 'tables().body()', 'table().body()' , function () {
		return this.iterator( 'table', function ( ctx ) {
			return ctx.nTBody;
		}, 1 );
	} );
	
	
	_api_registerPlural( 'tables().header()', 'table().header()' , function () {
		return this.iterator( 'table', function ( ctx ) {
			return ctx.nTHead;
		}, 1 );
	} );
	
	
	_api_registerPlural( 'tables().footer()', 'table().footer()' , function () {
		return this.iterator( 'table', function ( ctx ) {
			return ctx.nTFoot;
		}, 1 );
	} );
	
	
	_api_registerPlural( 'tables().containers()', 'table().container()' , function () {
		return this.iterator( 'table', function ( ctx ) {
			return ctx.nTableWrapper;
		}, 1 );
	} );
	
	
	
	/**
	 * Redraw the tables in the current context.
	 */
	_api_register( 'draw()', function ( paging ) {
		return this.iterator( 'table', function ( settings ) {
			if ( paging === 'page' ) {
				_fnDraw( settings );
			}
			else {
				if ( typeof paging === 'string' ) {
					paging = paging === 'full-hold' ?
						false :
						true;
				}
	
				_fnReDraw( settings, paging===false );
			}
		} );
	} );
	
	
	
	/**
	 * Get the current page index.
	 *
	 * @return {integer} Current page index (zero based)
	 *//**
	 * Set the current page.
	 *
	 * Note that if you attempt to show a page which does not exist, DataTables will
	 * not throw an error, but rather reset the paging.
	 *
	 * @param {integer|string} action The paging action to take. This can be one of:
	 *  * `integer` - The page index to jump to
	 *  * `string` - An action to take:
	 *    * `first` - Jump to first page.
	 *    * `next` - Jump to the next page
	 *    * `previous` - Jump to previous page
	 *    * `last` - Jump to the last page.
	 * @returns {DataTables.Api} this
	 */
	_api_register( 'page()', function ( action ) {
		if ( action === undefined ) {
			return this.page.info().page; // not an expensive call
		}
	
		// else, have an action to take on all tables
		return this.iterator( 'table', function ( settings ) {
			_fnPageChange( settings, action );
		} );
	} );
	
	
	/**
	 * Paging information for the first table in the current context.
	 *
	 * If you require paging information for another table, use the `table()` method
	 * with a suitable selector.
	 *
	 * @return {object} Object with the following properties set:
	 *  * `page` - Current page index (zero based - i.e. the first page is `0`)
	 *  * `pages` - Total number of pages
	 *  * `start` - Display index for the first record shown on the current page
	 *  * `end` - Display index for the last record shown on the current page
	 *  * `length` - Display length (number of records). Note that generally `start
	 *    + length = end`, but this is not always true, for example if there are
	 *    only 2 records to show on the final page, with a length of 10.
	 *  * `recordsTotal` - Full data set length
	 *  * `recordsDisplay` - Data set length once the current filtering criterion
	 *    are applied.
	 */
	_api_register( 'page.info()', function ( action ) {
		if ( this.context.length === 0 ) {
			return undefined;
		}
	
		var
			settings   = this.context[0],
			start      = settings._iDisplayStart,
			len        = settings.oFeatures.bPaginate ? settings._iDisplayLength : -1,
			visRecords = settings.fnRecordsDisplay(),
			all        = len === -1;
	
		return {
			"page":           all ? 0 : Math.floor( start / len ),
			"pages":          all ? 1 : Math.ceil( visRecords / len ),
			"start":          start,
			"end":            settings.fnDisplayEnd(),
			"length":         len,
			"recordsTotal":   settings.fnRecordsTotal(),
			"recordsDisplay": visRecords,
			"serverSide":     _fnDataSource( settings ) === 'ssp'
		};
	} );
	
	
	/**
	 * Get the current page length.
	 *
	 * @return {integer} Current page length. Note `-1` indicates that all records
	 *   are to be shown.
	 *//**
	 * Set the current page length.
	 *
	 * @param {integer} Page length to set. Use `-1` to show all records.
	 * @returns {DataTables.Api} this
	 */
	_api_register( 'page.len()', function ( len ) {
		// Note that we can't call this function 'length()' because `length`
		// is a Javascript property of functions which defines how many arguments
		// the function expects.
		if ( len === undefined ) {
			return this.context.length !== 0 ?
				this.context[0]._iDisplayLength :
				undefined;
		}
	
		// else, set the page length
		return this.iterator( 'table', function ( settings ) {
			_fnLengthChange( settings, len );
		} );
	} );
	
	
	
	var __reload = function ( settings, holdPosition, callback ) {
		// Use the draw event to trigger a callback
		if ( callback ) {
			var api = new _Api( settings );
	
			api.one( 'draw', function () {
				callback( api.ajax.json() );
			} );
		}
	
		if ( _fnDataSource( settings ) == 'ssp' ) {
			_fnReDraw( settings, holdPosition );
		}
		else {
			_fnProcessingDisplay( settings, true );
	
			// Cancel an existing request
			var xhr = settings.jqXHR;
			if ( xhr && xhr.readyState !== 4 ) {
				xhr.abort();
			}
	
			// Trigger xhr
			_fnBuildAjax( settings, [], function( json ) {
				_fnClearTable( settings );
	
				var data = _fnAjaxDataSrc( settings, json );
				for ( var i=0, ien=data.length ; i<ien ; i++ ) {
					_fnAddData( settings, data[i] );
				}
	
				_fnReDraw( settings, holdPosition );
				_fnProcessingDisplay( settings, false );
			} );
		}
	};
	
	
	/**
	 * Get the JSON response from the last Ajax request that DataTables made to the
	 * server. Note that this returns the JSON from the first table in the current
	 * context.
	 *
	 * @return {object} JSON received from the server.
	 */
	_api_register( 'ajax.json()', function () {
		var ctx = this.context;
	
		if ( ctx.length > 0 ) {
			return ctx[0].json;
		}
	
		// else return undefined;
	} );
	
	
	/**
	 * Get the data submitted in the last Ajax request
	 */
	_api_register( 'ajax.params()', function () {
		var ctx = this.context;
	
		if ( ctx.length > 0 ) {
			return ctx[0].oAjaxData;
		}
	
		// else return undefined;
	} );
	
	
	/**
	 * Reload tables from the Ajax data source. Note that this function will
	 * automatically re-draw the table when the remote data has been loaded.
	 *
	 * @param {boolean} [reset=true] Reset (default) or hold the current paging
	 *   position. A full re-sort and re-filter is performed when this method is
	 *   called, which is why the pagination reset is the default action.
	 * @returns {DataTables.Api} this
	 */
	_api_register( 'ajax.reload()', function ( callback, resetPaging ) {
		return this.iterator( 'table', function (settings) {
			__reload( settings, resetPaging===false, callback );
		} );
	} );
	
	
	/**
	 * Get the current Ajax URL. Note that this returns the URL from the first
	 * table in the current context.
	 *
	 * @return {string} Current Ajax source URL
	 *//**
	 * Set the Ajax URL. Note that this will set the URL for all tables in the
	 * current context.
	 *
	 * @param {string} url URL to set.
	 * @returns {DataTables.Api} this
	 */
	_api_register( 'ajax.url()', function ( url ) {
		var ctx = this.context;
	
		if ( url === undefined ) {
			// get
			if ( ctx.length === 0 ) {
				return undefined;
			}
			ctx = ctx[0];
	
			return ctx.ajax ?
				$.isPlainObject( ctx.ajax ) ?
					ctx.ajax.url :
					ctx.ajax :
				ctx.sAjaxSource;
		}
	
		// set
		return this.iterator( 'table', function ( settings ) {
			if ( $.isPlainObject( settings.ajax ) ) {
				settings.ajax.url = url;
			}
			else {
				settings.ajax = url;
			}
			// No need to consider sAjaxSource here since DataTables gives priority
			// to `ajax` over `sAjaxSource`. So setting `ajax` here, renders any
			// value of `sAjaxSource` redundant.
		} );
	} );
	
	
	/**
	 * Load data from the newly set Ajax URL. Note that this method is only
	 * available when `ajax.url()` is used to set a URL. Additionally, this method
	 * has the same effect as calling `ajax.reload()` but is provided for
	 * convenience when setting a new URL. Like `ajax.reload()` it will
	 * automatically redraw the table once the remote data has been loaded.
	 *
	 * @returns {DataTables.Api} this
	 */
	_api_register( 'ajax.url().load()', function ( callback, resetPaging ) {
		// Same as a reload, but makes sense to present it for easy access after a
		// url change
		return this.iterator( 'table', function ( ctx ) {
			__reload( ctx, resetPaging===false, callback );
		} );
	} );
	
	
	
	
	var _selector_run = function ( type, selector, selectFn, settings, opts )
	{
		var
			out = [], res,
			a, i, ien, j, jen,
			selectorType = typeof selector;
	
		// Can't just check for isArray here, as an API or jQuery instance might be
		// given with their array like look
		if ( ! selector || selectorType === 'string' || selectorType === 'function' || selector.length === undefined ) {
			selector = [ selector ];
		}
	
		for ( i=0, ien=selector.length ; i<ien ; i++ ) {
			// Only split on simple strings - complex expressions will be jQuery selectors
			a = selector[i] && selector[i].split && ! selector[i].match(/[\[\(:]/) ?
				selector[i].split(',') :
				[ selector[i] ];
	
			for ( j=0, jen=a.length ; j<jen ; j++ ) {
				res = selectFn( typeof a[j] === 'string' ? (a[j]).trim() : a[j] );
	
				if ( res && res.length ) {
					out = out.concat( res );
				}
			}
		}
	
		// selector extensions
		var ext = _ext.selector[ type ];
		if ( ext.length ) {
			for ( i=0, ien=ext.length ; i<ien ; i++ ) {
				out = ext[i]( settings, opts, out );
			}
		}
	
		return _unique( out );
	};
	
	
	var _selector_opts = function ( opts )
	{
		if ( ! opts ) {
			opts = {};
		}
	
		// Backwards compatibility for 1.9- which used the terminology filter rather
		// than search
		if ( opts.filter && opts.search === undefined ) {
			opts.search = opts.filter;
		}
	
		return $.extend( {
			search: 'none',
			order: 'current',
			page: 'all'
		}, opts );
	};
	
	
	var _selector_first = function ( inst )
	{
		// Reduce the API instance to the first item found
		for ( var i=0, ien=inst.length ; i<ien ; i++ ) {
			if ( inst[i].length > 0 ) {
				// Assign the first element to the first item in the instance
				// and truncate the instance and context
				inst[0] = inst[i];
				inst[0].length = 1;
				inst.length = 1;
				inst.context = [ inst.context[i] ];
	
				return inst;
			}
		}
	
		// Not found - return an empty instance
		inst.length = 0;
		return inst;
	};
	
	
	var _selector_row_indexes = function ( settings, opts )
	{
		var
			i, ien, tmp, a=[],
			displayFiltered = settings.aiDisplay,
			displayMaster = settings.aiDisplayMaster;
	
		var
			search = opts.search,  // none, applied, removed
			order  = opts.order,   // applied, current, index (original - compatibility with 1.9)
			page   = opts.page;    // all, current
	
		if ( _fnDataSource( settings ) == 'ssp' ) {
			// In server-side processing mode, most options are irrelevant since
			// rows not shown don't exist and the index order is the applied order
			// Removed is a special case - for consistency just return an empty
			// array
			return search === 'removed' ?
				[] :
				_range( 0, displayMaster.length );
		}
		else if ( page == 'current' ) {
			// Current page implies that order=current and fitler=applied, since it is
			// fairly senseless otherwise, regardless of what order and search actually
			// are
			for ( i=settings._iDisplayStart, ien=settings.fnDisplayEnd() ; i<ien ; i++ ) {
				a.push( displayFiltered[i] );
			}
		}
		else if ( order == 'current' || order == 'applied' ) {
			if ( search == 'none') {
				a = displayMaster.slice();
			}
			else if ( search == 'applied' ) {
				a = displayFiltered.slice();
			}
			else if ( search == 'removed' ) {
				// O(n+m) solution by creating a hash map
				var displayFilteredMap = {};
	
				for ( var i=0, ien=displayFiltered.length ; i<ien ; i++ ) {
					displayFilteredMap[displayFiltered[i]] = null;
				}
	
				a = $.map( displayMaster, function (el) {
					return ! displayFilteredMap.hasOwnProperty(el) ?
						el :
						null;
				} );
			}
		}
		else if ( order == 'index' || order == 'original' ) {
			for ( i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
				if ( search == 'none' ) {
					a.push( i );
				}
				else { // applied | removed
					tmp = $.inArray( i, displayFiltered );
	
					if ((tmp === -1 && search == 'removed') ||
						(tmp >= 0   && search == 'applied') )
					{
						a.push( i );
					}
				}
			}
		}
	
		return a;
	};
	
	
	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	 * Rows
	 *
	 * {}          - no selector - use all available rows
	 * {integer}   - row aoData index
	 * {node}      - TR node
	 * {string}    - jQuery selector to apply to the TR elements
	 * {array}     - jQuery array of nodes, or simply an array of TR nodes
	 *
	 */
	var __row_selector = function ( settings, selector, opts )
	{
		var rows;
		var run = function ( sel ) {
			var selInt = _intVal( sel );
			var i, ien;
			var aoData = settings.aoData;
	
			// Short cut - selector is a number and no options provided (default is
			// all records, so no need to check if the index is in there, since it
			// must be - dev error if the index doesn't exist).
			if ( selInt !== null && ! opts ) {
				return [ selInt ];
			}
	
			if ( ! rows ) {
				rows = _selector_row_indexes( settings, opts );
			}
	
			if ( selInt !== null && $.inArray( selInt, rows ) !== -1 ) {
				// Selector - integer
				return [ selInt ];
			}
			else if ( sel === null || sel === undefined || sel === '' ) {
				// Selector - none
				return rows;
			}
	
			// Selector - function
			if ( typeof sel === 'function' ) {
				return $.map( rows, function (idx) {
					var row = aoData[ idx ];
					return sel( idx, row._aData, row.nTr ) ? idx : null;
				} );
			}
	
			// Selector - node
			if ( sel.nodeName ) {
				var rowIdx = sel._DT_RowIndex;  // Property added by DT for fast lookup
				var cellIdx = sel._DT_CellIndex;
	
				if ( rowIdx !== undefined ) {
					// Make sure that the row is actually still present in the table
					return aoData[ rowIdx ] && aoData[ rowIdx ].nTr === sel ?
						[ rowIdx ] :
						[];
				}
				else if ( cellIdx ) {
					return aoData[ cellIdx.row ] && aoData[ cellIdx.row ].nTr === sel.parentNode ?
						[ cellIdx.row ] :
						[];
				}
				else {
					var host = $(sel).closest('*[data-dt-row]');
					return host.length ?
						[ host.data('dt-row') ] :
						[];
				}
			}
	
			// ID selector. Want to always be able to select rows by id, regardless
			// of if the tr element has been created or not, so can't rely upon
			// jQuery here - hence a custom implementation. This does not match
			// Sizzle's fast selector or HTML4 - in HTML5 the ID can be anything,
			// but to select it using a CSS selector engine (like Sizzle or
			// querySelect) it would need to need to be escaped for some characters.
			// DataTables simplifies this for row selectors since you can select
			// only a row. A # indicates an id any anything that follows is the id -
			// unescaped.
			if ( typeof sel === 'string' && sel.charAt(0) === '#' ) {
				// get row index from id
				var rowObj = settings.aIds[ sel.replace( /^#/, '' ) ];
				if ( rowObj !== undefined ) {
					return [ rowObj.idx ];
				}
	
				// need to fall through to jQuery in case there is DOM id that
				// matches
			}
			
			// Get nodes in the order from the `rows` array with null values removed
			var nodes = _removeEmpty(
				_pluck_order( settings.aoData, rows, 'nTr' )
			);
	
			// Selector - jQuery selector string, array of nodes or jQuery object/
			// As jQuery's .filter() allows jQuery objects to be passed in filter,
			// it also allows arrays, so this will cope with all three options
			return $(nodes)
				.filter( sel )
				.map( function () {
					return this._DT_RowIndex;
				} )
				.toArray();
		};
	
		return _selector_run( 'row', selector, run, settings, opts );
	};
	
	
	_api_register( 'rows()', function ( selector, opts ) {
		// argument shifting
		if ( selector === undefined ) {
			selector = '';
		}
		else if ( $.isPlainObject( selector ) ) {
			opts = selector;
			selector = '';
		}
	
		opts = _selector_opts( opts );
	
		var inst = this.iterator( 'table', function ( settings ) {
			return __row_selector( settings, selector, opts );
		}, 1 );
	
		// Want argument shifting here and in __row_selector?
		inst.selector.rows = selector;
		inst.selector.opts = opts;
	
		return inst;
	} );
	
	_api_register( 'rows().nodes()', function () {
		return this.iterator( 'row', function ( settings, row ) {
			return settings.aoData[ row ].nTr || undefined;
		}, 1 );
	} );
	
	_api_register( 'rows().data()', function () {
		return this.iterator( true, 'rows', function ( settings, rows ) {
			return _pluck_order( settings.aoData, rows, '_aData' );
		}, 1 );
	} );
	
	_api_registerPlural( 'rows().cache()', 'row().cache()', function ( type ) {
		return this.iterator( 'row', function ( settings, row ) {
			var r = settings.aoData[ row ];
			return type === 'search' ? r._aFilterData : r._aSortData;
		}, 1 );
	} );
	
	_api_registerPlural( 'rows().invalidate()', 'row().invalidate()', function ( src ) {
		return this.iterator( 'row', function ( settings, row ) {
			_fnInvalidate( settings, row, src );
		} );
	} );
	
	_api_registerPlural( 'rows().indexes()', 'row().index()', function () {
		return this.iterator( 'row', function ( settings, row ) {
			return row;
		}, 1 );
	} );
	
	_api_registerPlural( 'rows().ids()', 'row().id()', function ( hash ) {
		var a = [];
		var context = this.context;
	
		// `iterator` will drop undefined values, but in this case we want them
		for ( var i=0, ien=context.length ; i<ien ; i++ ) {
			for ( var j=0, jen=this[i].length ; j<jen ; j++ ) {
				var id = context[i].rowIdFn( context[i].aoData[ this[i][j] ]._aData );
				a.push( (hash === true ? '#' : '' )+ id );
			}
		}
	
		return new _Api( context, a );
	} );
	
	_api_registerPlural( 'rows().remove()', 'row().remove()', function () {
		var that = this;
	
		this.iterator( 'row', function ( settings, row, thatIdx ) {
			var data = settings.aoData;
			var rowData = data[ row ];
			var i, ien, j, jen;
			var loopRow, loopCells;
	
			data.splice( row, 1 );
	
			// Update the cached indexes
			for ( i=0, ien=data.length ; i<ien ; i++ ) {
				loopRow = data[i];
				loopCells = loopRow.anCells;
	
				// Rows
				if ( loopRow.nTr !== null ) {
					loopRow.nTr._DT_RowIndex = i;
				}
	
				// Cells
				if ( loopCells !== null ) {
					for ( j=0, jen=loopCells.length ; j<jen ; j++ ) {
						loopCells[j]._DT_CellIndex.row = i;
					}
				}
			}
	
			// Delete from the display arrays
			_fnDeleteIndex( settings.aiDisplayMaster, row );
			_fnDeleteIndex( settings.aiDisplay, row );
			_fnDeleteIndex( that[ thatIdx ], row, false ); // maintain local indexes
	
			// For server-side processing tables - subtract the deleted row from the count
			if ( settings._iRecordsDisplay > 0 ) {
				settings._iRecordsDisplay--;
			}
	
			// Check for an 'overflow' they case for displaying the table
			_fnLengthOverflow( settings );
	
			// Remove the row's ID reference if there is one
			var id = settings.rowIdFn( rowData._aData );
			if ( id !== undefined ) {
				delete settings.aIds[ id ];
			}
		} );
	
		this.iterator( 'table', function ( settings ) {
			for ( var i=0, ien=settings.aoData.length ; i<ien ; i++ ) {
				settings.aoData[i].idx = i;
			}
		} );
	
		return this;
	} );
	
	
	_api_register( 'rows.add()', function ( rows ) {
		var newRows = this.iterator( 'table', function ( settings ) {
				var row, i, ien;
				var out = [];
	
				for ( i=0, ien=rows.length ; i<ien ; i++ ) {
					row = rows[i];
	
					if ( row.nodeName && row.nodeName.toUpperCase() === 'TR' ) {
						out.push( _fnAddTr( settings, row )[0] );
					}
					else {
						out.push( _fnAddData( settings, row ) );
					}
				}
	
				return out;
			}, 1 );
	
		// Return an Api.rows() extended instance, so rows().nodes() etc can be used
		var modRows = this.rows( -1 );
		modRows.pop();
		$.merge( modRows, newRows );
	
		return modRows;
	} );
	
	
	
	
	
	/**
	 *
	 */
	_api_register( 'row()', function ( selector, opts ) {
		return _selector_first( this.rows( selector, opts ) );
	} );
	
	
	_api_register( 'row().data()', function ( data ) {
		var ctx = this.context;
	
		if ( data === undefined ) {
			// Get
			return ctx.length && this.length ?
				ctx[0].aoData[ this[0] ]._aData :
				undefined;
		}
	
		// Set
		var row = ctx[0].aoData[ this[0] ];
		row._aData = data;
	
		// If the DOM has an id, and the data source is an array
		if ( Array.isArray( data ) && row.nTr && row.nTr.id ) {
			_fnSetObjectDataFn( ctx[0].rowId )( data, row.nTr.id );
		}
	
		// Automatically invalidate
		_fnInvalidate( ctx[0], this[0], 'data' );
	
		return this;
	} );
	
	
	_api_register( 'row().node()', function () {
		var ctx = this.context;
	
		return ctx.length && this.length ?
			ctx[0].aoData[ this[0] ].nTr || null :
			null;
	} );
	
	
	_api_register( 'row.add()', function ( row ) {
		// Allow a jQuery object to be passed in - only a single row is added from
		// it though - the first element in the set
		if ( row instanceof $ && row.length ) {
			row = row[0];
		}
	
		var rows = this.iterator( 'table', function ( settings ) {
			if ( row.nodeName && row.nodeName.toUpperCase() === 'TR' ) {
				return _fnAddTr( settings, row )[0];
			}
			return _fnAddData( settings, row );
		} );
	
		// Return an Api.rows() extended instance, with the newly added row selected
		return this.row( rows[0] );
	} );
	
	
	
	var __details_add = function ( ctx, row, data, klass )
	{
		// Convert to array of TR elements
		var rows = [];
		var addRow = function ( r, k ) {
			// Recursion to allow for arrays of jQuery objects
			if ( Array.isArray( r ) || r instanceof $ ) {
				for ( var i=0, ien=r.length ; i<ien ; i++ ) {
					addRow( r[i], k );
				}
				return;
			}
	
			// If we get a TR element, then just add it directly - up to the dev
			// to add the correct number of columns etc
			if ( r.nodeName && r.nodeName.toLowerCase() === 'tr' ) {
				rows.push( r );
			}
			else {
				// Otherwise create a row with a wrapper
				var created = $('<tr><td></td></tr>').addClass( k );
				$('td', created)
					.addClass( k )
					.html( r )
					[0].colSpan = _fnVisbleColumns( ctx );
	
				rows.push( created[0] );
			}
		};
	
		addRow( data, klass );
	
		if ( row._details ) {
			row._details.detach();
		}
	
		row._details = $(rows);
	
		// If the children were already shown, that state should be retained
		if ( row._detailsShow ) {
			row._details.insertAfter( row.nTr );
		}
	};
	
	
	var __details_remove = function ( api, idx )
	{
		var ctx = api.context;
	
		if ( ctx.length ) {
			var row = ctx[0].aoData[ idx !== undefined ? idx : api[0] ];
	
			if ( row && row._details ) {
				row._details.remove();
	
				row._detailsShow = undefined;
				row._details = undefined;
			}
		}
	};
	
	
	var __details_display = function ( api, show ) {
		var ctx = api.context;
	
		if ( ctx.length && api.length ) {
			var row = ctx[0].aoData[ api[0] ];
	
			if ( row._details ) {
				row._detailsShow = show;
	
				if ( show ) {
					row._details.insertAfter( row.nTr );
				}
				else {
					row._details.detach();
				}
	
				__details_events( ctx[0] );
			}
		}
	};
	
	
	var __details_events = function ( settings )
	{
		var api = new _Api( settings );
		var namespace = '.dt.DT_details';
		var drawEvent = 'draw'+namespace;
		var colvisEvent = 'column-visibility'+namespace;
		var destroyEvent = 'destroy'+namespace;
		var data = settings.aoData;
	
		api.off( drawEvent +' '+ colvisEvent +' '+ destroyEvent );
	
		if ( _pluck( data, '_details' ).length > 0 ) {
			// On each draw, insert the required elements into the document
			api.on( drawEvent, function ( e, ctx ) {
				if ( settings !== ctx ) {
					return;
				}
	
				api.rows( {page:'current'} ).eq(0).each( function (idx) {
					// Internal data grab
					var row = data[ idx ];
	
					if ( row._detailsShow ) {
						row._details.insertAfter( row.nTr );
					}
				} );
			} );
	
			// Column visibility change - update the colspan
			api.on( colvisEvent, function ( e, ctx, idx, vis ) {
				if ( settings !== ctx ) {
					return;
				}
	
				// Update the colspan for the details rows (note, only if it already has
				// a colspan)
				var row, visible = _fnVisbleColumns( ctx );
	
				for ( var i=0, ien=data.length ; i<ien ; i++ ) {
					row = data[i];
	
					if ( row._details ) {
						row._details.children('td[colspan]').attr('colspan', visible );
					}
				}
			} );
	
			// Table destroyed - nuke any child rows
			api.on( destroyEvent, function ( e, ctx ) {
				if ( settings !== ctx ) {
					return;
				}
	
				for ( var i=0, ien=data.length ; i<ien ; i++ ) {
					if ( data[i]._details ) {
						__details_remove( api, i );
					}
				}
			} );
		}
	};
	
	// Strings for the method names to help minification
	var _emp = '';
	var _child_obj = _emp+'row().child';
	var _child_mth = _child_obj+'()';
	
	// data can be:
	//  tr
	//  string
	//  jQuery or array of any of the above
	_api_register( _child_mth, function ( data, klass ) {
		var ctx = this.context;
	
		if ( data === undefined ) {
			// get
			return ctx.length && this.length ?
				ctx[0].aoData[ this[0] ]._details :
				undefined;
		}
		else if ( data === true ) {
			// show
			this.child.show();
		}
		else if ( data === false ) {
			// remove
			__details_remove( this );
		}
		else if ( ctx.length && this.length ) {
			// set
			__details_add( ctx[0], ctx[0].aoData[ this[0] ], data, klass );
		}
	
		return this;
	} );
	
	
	_api_register( [
		_child_obj+'.show()',
		_child_mth+'.show()' // only when `child()` was called with parameters (without
	], function ( show ) {   // it returns an object and this method is not executed)
		__details_display( this, true );
		return this;
	} );
	
	
	_api_register( [
		_child_obj+'.hide()',
		_child_mth+'.hide()' // only when `child()` was called with parameters (without
	], function () {         // it returns an object and this method is not executed)
		__details_display( this, false );
		return this;
	} );
	
	
	_api_register( [
		_child_obj+'.remove()',
		_child_mth+'.remove()' // only when `child()` was called with parameters (without
	], function () {           // it returns an object and this method is not executed)
		__details_remove( this );
		return this;
	} );
	
	
	_api_register( _child_obj+'.isShown()', function () {
		var ctx = this.context;
	
		if ( ctx.length && this.length ) {
			// _detailsShown as false or undefined will fall through to return false
			return ctx[0].aoData[ this[0] ]._detailsShow || false;
		}
		return false;
	} );
	
	
	
	/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
	 * Columns
	 *
	 * {integer}           - column index (>=0 count from left, <0 count from right)
	 * "{integer}:visIdx"  - visible column index (i.e. translate to column index)  (>=0 count from left, <0 count from right)
	 * "{integer}:visible" - alias for {integer}:visIdx  (>=0 count from left, <0 count from right)
	 * "{string}:name"     - column name
	 * "{string}"          - jQuery selector on column header nodes
	 *
	 */
	
	// can be an array of these items, comma separated list, or an array of comma
	// separated lists
	
	var __re_column_selector = /^([^:]+):(name|visIdx|visible)$/;
	
	
	// r1 and r2 are redundant - but it means that the parameters match for the
	// iterator callback in columns().data()
	var __columnData = function ( settings, column, r1, r2, rows ) {
		var a = [];
		for ( var row=0, ien=rows.length ; row<ien ; row++ ) {
			a.push( _fnGetCellData( settings, rows[row], column ) );
		}
		return a;
	};
	
	
	var __column_selector = function ( settings, selector, opts )
	{
		var
			columns = settings.aoColumns,
			names = _pluck( columns, 'sName' ),
			nodes = _pluck( columns, 'nTh' );
	
		var run = function ( s ) {
			var selInt = _intVal( s );
	
			// Selector - all
			if ( s === '' ) {
				return _range( columns.length );
			}
	
			// Selector - index
			if ( selInt !== null ) {
				return [ selInt >= 0 ?
					selInt : // Count from left
					columns.length + selInt // Count from right (+ because its a negative value)
				];
			}
	
			// Selector = function
			if ( typeof s === 'function' ) {
				var rows = _selector_row_indexes( settings, opts );
	
				return $.map( columns, function (col, idx) {
					return s(
							idx,
							__columnData( settings, idx, 0, 0, rows ),
							nodes[ idx ]
						) ? idx : null;
				} );
			}
	
			// jQuery or string selector
			var match = typeof s === 'string' ?
				s.match( __re_column_selector ) :
				'';
	
			if ( match ) {
				switch( match[2] ) {
					case 'visIdx':
					case 'visible':
						var idx = parseInt( match[1], 10 );
						// Visible index given, convert to column index
						if ( idx < 0 ) {
							// Counting from the right
							var visColumns = $.map( columns, function (col,i) {
								return col.bVisible ? i : null;
							} );
							return [ visColumns[ visColumns.length + idx ] ];
						}
						// Counting from the left
						return [ _fnVisibleToColumnIndex( settings, idx ) ];
	
					case 'name':
						// match by name. `names` is column index complete and in order
						return $.map( names, function (name, i) {
							return name === match[1] ? i : null;
						} );
	
					default:
						return [];
				}
			}
	
			// Cell in the table body
			if ( s.nodeName && s._DT_CellIndex ) {
				return [ s._DT_CellIndex.column ];
			}
	
			// jQuery selector on the TH elements for the columns
			var jqResult = $( nodes )
				.filter( s )
				.map( function () {
					return $.inArray( this, nodes ); // `nodes` is column index complete and in order
				} )
				.toArray();
	
			if ( jqResult.length || ! s.nodeName ) {
				return jqResult;
			}
	
			// Otherwise a node which might have a `dt-column` data attribute, or be
			// a child or such an element
			var host = $(s).closest('*[data-dt-column]');
			return host.length ?
				[ host.data('dt-column') ] :
				[];
		};
	
		return _selector_run( 'column', selector, run, settings, opts );
	};
	
	
	var __setColumnVis = function ( settings, column, vis ) {
		var
			cols = settings.aoColumns,
			col  = cols[ column ],
			data = settings.aoData,
			row, cells, i, ien, tr;
	
		// Get
		if ( vis === undefined ) {
			return col.bVisible;
		}
	
		// Set
		// No change
		if ( col.bVisible === vis ) {
			return;
		}
	
		if ( vis ) {
			// Insert column
			// Need to decide if we should use appendChild or insertBefore
			var insertBefore = $.inArray( true, _pluck(cols, 'bVisible'), column+1 );
	
			for ( i=0, ien=data.length ; i<ien ; i++ ) {
				tr = data[i].nTr;
				cells = data[i].anCells;
	
				if ( tr ) {
					// insertBefore can act like appendChild if 2nd arg is null
					tr.insertBefore( cells[ column ], cells[ insertBefore ] || null );
				}
			}
		}
		else {
			// Remove column
			$( _pluck( settings.aoData, 'anCells', column ) ).detach();
		}
	
		// Common actions
		col.bVisible = vis;
	};
	
	
	_api_register( 'columns()', function ( selector, opts ) {
		// argument shifting
		if ( selector === undefined ) {
			selector = '';
		}
		else if ( $.isPlainObject( selector ) ) {
			opts = selector;
			selector = '';
		}
	
		opts = _selector_opts( opts );
	
		var inst = this.iterator( 'table', function ( settings ) {
			return __column_selector( settings, selector, opts );
		}, 1 );
	
		// Want argument shifting here and in _row_selector?
		inst.selector.cols = selector;
		inst.selector.opts = opts;
	
		return inst;
	} );
	
	_api_registerPlural( 'columns().header()', 'column().header()', function ( selector, opts ) {
		return this.iterator( 'column', function ( settings, column ) {
			return settings.aoColumns[column].nTh;
		}, 1 );
	} );
	
	_api_registerPlural( 'columns().footer()', 'column().footer()', function ( selector, opts ) {
		return this.iterator( 'column', function ( settings, column ) {
			return settings.aoColumns[column].nTf;
		}, 1 );
	} );
	
	_api_registerPlural( 'columns().data()', 'column().data()', function () {
		return this.iterator( 'column-rows', __columnData, 1 );
	} );
	
	_api_registerPlural( 'columns().dataSrc()', 'column().dataSrc()', function () {
		return this.iterator( 'column', function ( settings, column ) {
			return settings.aoColumns[column].mData;
		}, 1 );
	} );
	
	_api_registerPlural( 'columns().cache()', 'column().cache()', function ( type ) {
		return this.iterator( 'column-rows', function ( settings, column, i, j, rows ) {
			return _pluck_order( settings.aoData, rows,
				type === 'search' ? '_aFilterData' : '_aSortData', column
			);
		}, 1 );
	} );
	
	_api_registerPlural( 'columns().nodes()', 'column().nodes()', function () {
		return this.iterator( 'column-rows', function ( settings, column, i, j, rows ) {
			return _pluck_order( settings.aoData, rows, 'anCells', column ) ;
		}, 1 );
	} );
	
	_api_registerPlural( 'columns().visible()', 'column().visible()', function ( vis, calc ) {
		var that = this;
		var ret = this.iterator( 'column', function ( settings, column ) {
			if ( vis === undefined ) {
				return settings.aoColumns[ column ].bVisible;
			} // else
			__setColumnVis( settings, column, vis );
		} );
	
		// Group the column visibility changes
		if ( vis !== undefined ) {
			this.iterator( 'table', function ( settings ) {
				// Redraw the header after changes
				_fnDrawHead( settings, settings.aoHeader );
				_fnDrawHead( settings, settings.aoFooter );
		
				// Update colspan for no records display. Child rows and extensions will use their own
				// listeners to do this - only need to update the empty table item here
				if ( ! settings.aiDisplay.length ) {
					$(settings.nTBody).find('td[colspan]').attr('colspan', _fnVisbleColumns(settings));
				}
		
				_fnSaveState( settings );
	
				// Second loop once the first is done for events
				that.iterator( 'column', function ( settings, column ) {
					_fnCallbackFire( settings, null, 'column-visibility', [settings, column, vis, calc] );
				} );
	
				if ( calc === undefined || calc ) {
					that.columns.adjust();
				}
			});
		}
	
		return ret;
	} );
	
	_api_registerPlural( 'columns().indexes()', 'column().index()', function ( type ) {
		return this.iterator( 'column', function ( settings, column ) {
			return type === 'visible' ?
				_fnColumnIndexToVisible( settings, column ) :
				column;
		}, 1 );
	} );
	
	_api_register( 'columns.adjust()', function () {
		return this.iterator( 'table', function ( settings ) {
			_fnAdjustColumnSizing( settings );
		}, 1 );
	} );
	
	_api_register( 'column.index()', function ( type, idx ) {
		if ( this.context.length !== 0 ) {
			var ctx = this.context[0];
	
			if ( type === 'fromVisible' || type === 'toData' ) {
				return _fnVisibleToColumnIndex( ctx, idx );
			}
			else if ( type === 'fromData' || type === 'toVisible' ) {
				return _fnColumnIndexToVisible( ctx, idx );
			}
		}
	} );
	
	_api_register( 'column()', function ( selector, opts ) {
		return _selector_first( this.columns( selector, opts ) );
	} );
	
	var __cell_selector = function ( settings, selector, opts )
	{
		var data = settings.aoData;
		var rows = _selector_row_indexes( settings, opts );
		var cells = _removeEmpty( _pluck_order( data, rows, 'anCells' ) );
		var allCells = $(_flatten( [], cells ));
		var row;
		var columns = settings.aoColumns.length;
		var a, i, ien, j, o, host;
	
		var run = function ( s ) {
			var fnSelector = typeof s === 'function';
	
			if ( s === null || s === undefined || fnSelector ) {
				// All cells and function selectors
				a = [];
	
				for ( i=0, ien=rows.length ; i<ien ; i++ ) {
					row = rows[i];
	
					for ( j=0 ; j<columns ; j++ ) {
						o = {
							row: row,
							column: j
						};
	
						if ( fnSelector ) {
							// Selector - function
							host = data[ row ];
	
							if ( s( o, _fnGetCellData(settings, row, j), host.anCells ? host.anCells[j] : null ) ) {
								a.push( o );
							}
						}
						else {
							// Selector - all
							a.push( o );
						}
					}
				}
	
				return a;
			}
			
			// Selector - index
			if ( $.isPlainObject( s ) ) {
				// Valid cell index and its in the array of selectable rows
				return s.column !== undefined && s.row !== undefined && $.inArray( s.row, rows ) !== -1 ?
					[s] :
					[];
			}
	
			// Selector - jQuery filtered cells
			var jqResult = allCells
				.filter( s )
				.map( function (i, el) {
					return { // use a new object, in case someone changes the values
						row:    el._DT_CellIndex.row,
						column: el._DT_CellIndex.column
	 				};
				} )
				.toArray();
	
			if ( jqResult.length || ! s.nodeName ) {
				return jqResult;
			}
	
			// Otherwise the selector is a node, and there is one last option - the
			// element might be a child of an element which has dt-row and dt-column
			// data attributes
			host = $(s).closest('*[data-dt-row]');
			return host.length ?
				[ {
					row: host.data('dt-row'),
					column: host.data('dt-column')
				} ] :
				[];
		};
	
		return _selector_run( 'cell', selector, run, settings, opts );
	};
	
	
	
	
	_api_register( 'cells()', function ( rowSelector, columnSelector, opts ) {
		// Argument shifting
		if ( $.isPlainObject( rowSelector ) ) {
			// Indexes
			if ( rowSelector.row === undefined ) {
				// Selector options in first parameter
				opts = rowSelector;
				rowSelector = null;
			}
			else {
				// Cell index objects in first parameter
				opts = columnSelector;
				columnSelector = null;
			}
		}
		if ( $.isPlainObject( columnSelector ) ) {
			opts = columnSelector;
			columnSelector = null;
		}
	
		// Cell selector
		if ( columnSelector === null || columnSelector === undefined ) {
			return this.iterator( 'table', function ( settings ) {
				return __cell_selector( settings, rowSelector, _selector_opts( opts ) );
			} );
		}
	
		// The default built in options need to apply to row and columns
		var internalOpts = opts ? {
			page: opts.page,
			order: opts.order,
			search: opts.search
		} : {};
	
		// Row + column selector
		var columns = this.columns( columnSelector, internalOpts );
		var rows = this.rows( rowSelector, internalOpts );
		var i, ien, j, jen;
	
		var cellsNoOpts = this.iterator( 'table', function ( settings, idx ) {
			var a = [];
	
			for ( i=0, ien=rows[idx].length ; i<ien ; i++ ) {
				for ( j=0, jen=columns[idx].length ; j<jen ; j++ ) {
					a.push( {
						row:    rows[idx][i],
						column: columns[idx][j]
					} );
				}
			}
	
			return a;
		}, 1 );
	
		// There is currently only one extension which uses a cell selector extension
		// It is a _major_ performance drag to run this if it isn't needed, so this is
		// an extension specific check at the moment
		var cells = opts && opts.selected ?
			this.cells( cellsNoOpts, opts ) :
			cellsNoOpts;
	
		$.extend( cells.selector, {
			cols: columnSelector,
			rows: rowSelector,
			opts: opts
		} );
	
		return cells;
	} );
	
	
	_api_registerPlural( 'cells().nodes()', 'cell().node()', function () {
		return this.iterator( 'cell', function ( settings, row, column ) {
			var data = settings.aoData[ row ];
	
			return data && data.anCells ?
				data.anCells[ column ] :
				undefined;
		}, 1 );
	} );
	
	
	_api_register( 'cells().data()', function () {
		return this.iterator( 'cell', function ( settings, row, column ) {
			return _fnGetCellData( settings, row, column );
		}, 1 );
	} );
	
	
	_api_registerPlural( 'cells().cache()', 'cell().cache()', function ( type ) {
		type = type === 'search' ? '_aFilterData' : '_aSortData';
	
		return this.iterator( 'cell', function ( settings, row, column ) {
			return settings.aoData[ row ][ type ][ column ];
		}, 1 );
	} );
	
	
	_api_registerPlural( 'cells().render()', 'cell().render()', function ( type ) {
		return this.iterator( 'cell', function ( settings, row, column ) {
			return _fnGetCellData( settings, row, column, type );
		}, 1 );
	} );
	
	
	_api_registerPlural( 'cells().indexes()', 'cell().index()', function () {
		return this.iterator( 'cell', function ( settings, row, column ) {
			return {
				row: row,
				column: column,
				columnVisible: _fnColumnIndexToVisible( settings, column )
			};
		}, 1 );
	} );
	
	
	_api_registerPlural( 'cells().invalidate()', 'cell().invalidate()', function ( src ) {
		return this.iterator( 'cell', function ( settings, row, column ) {
			_fnInvalidate( settings, row, src, column );
		} );
	} );
	
	
	
	_api_register( 'cell()', function ( rowSelector, columnSelector, opts ) {
		return _selector_first( this.cells( rowSelector, columnSelector, opts ) );
	} );
	
	
	_api_register( 'cell().data()', function ( data ) {
		var ctx = this.context;
		var cell = this[0];
	
		if ( data === undefined ) {
			// Get
			return ctx.length && cell.length ?
				_fnGetCellData( ctx[0], cell[0].row, cell[0].column ) :
				undefined;
		}
	
		// Set
		_fnSetCellData( ctx[0], cell[0].row, cell[0].column, data );
		_fnInvalidate( ctx[0], cell[0].row, 'data', cell[0].column );
	
		return this;
	} );
	
	
	
	/**
	 * Get current ordering (sorting) that has been applied to the table.
	 *
	 * @returns {array} 2D array containing the sorting information for the first
	 *   table in the current context. Each element in the parent array represents
	 *   a column being sorted upon (i.e. multi-sorting with two columns would have
	 *   2 inner arrays). The inner arrays may have 2 or 3 elements. The first is
	 *   the column index that the sorting condition applies to, the second is the
	 *   direction of the sort (`desc` or `asc`) and, optionally, the third is the
	 *   index of the sorting order from the `column.sorting` initialisation array.
	 *//**
	 * Set the ordering for the table.
	 *
	 * @param {integer} order Column index to sort upon.
	 * @param {string} direction Direction of the sort to be applied (`asc` or `desc`)
	 * @returns {DataTables.Api} this
	 *//**
	 * Set the ordering for the table.
	 *
	 * @param {array} order 1D array of sorting information to be applied.
	 * @param {array} [...] Optional additional sorting conditions
	 * @returns {DataTables.Api} this
	 *//**
	 * Set the ordering for the table.
	 *
	 * @param {array} order 2D array of sorting information to be applied.
	 * @returns {DataTables.Api} this
	 */
	_api_register( 'order()', function ( order, dir ) {
		var ctx = this.context;
	
		if ( order === undefined ) {
			// get
			return ctx.length !== 0 ?
				ctx[0].aaSorting :
				undefined;
		}
	
		// set
		if ( typeof order === 'number' ) {
			// Simple column / direction passed in
			order = [ [ order, dir ] ];
		}
		else if ( order.length && ! Array.isArray( order[0] ) ) {
			// Arguments passed in (list of 1D arrays)
			order = Array.prototype.slice.call( arguments );
		}
		// otherwise a 2D array was passed in
	
		return this.iterator( 'table', function ( settings ) {
			settings.aaSorting = order.slice();
		} );
	} );
	
	
	/**
	 * Attach a sort listener to an element for a given column
	 *
	 * @param {node|jQuery|string} node Identifier for the element(s) to attach the
	 *   listener to. This can take the form of a single DOM node, a jQuery
	 *   collection of nodes or a jQuery selector which will identify the node(s).
	 * @param {integer} column the column that a click on this node will sort on
	 * @param {function} [callback] callback function when sort is run
	 * @returns {DataTables.Api} this
	 */
	_api_register( 'order.listener()', function ( node, column, callback ) {
		return this.iterator( 'table', function ( settings ) {
			_fnSortAttachListener( settings, node, column, callback );
		} );
	} );
	
	
	_api_register( 'order.fixed()', function ( set ) {
		if ( ! set ) {
			var ctx = this.context;
			var fixed = ctx.length ?
				ctx[0].aaSortingFixed :
				undefined;
	
			return Array.isArray( fixed ) ?
				{ pre: fixed } :
				fixed;
		}
	
		return this.iterator( 'table', function ( settings ) {
			settings.aaSortingFixed = $.extend( true, {}, set );
		} );
	} );
	
	
	// Order by the selected column(s)
	_api_register( [
		'columns().order()',
		'column().order()'
	], function ( dir ) {
		var that = this;
	
		return this.iterator( 'table', function ( settings, i ) {
			var sort = [];
	
			$.each( that[i], function (j, col) {
				sort.push( [ col, dir ] );
			} );
	
			settings.aaSorting = sort;
		} );
	} );
	
	
	
	_api_register( 'search()', function ( input, regex, smart, caseInsen ) {
		var ctx = this.context;
	
		if ( input === undefined ) {
			// get
			return ctx.length !== 0 ?
				ctx[0].oPreviousSearch.sSearch :
				undefined;
		}
	
		// set
		return this.iterator( 'table', function ( settings ) {
			if ( ! settings.oFeatures.bFilter ) {
				return;
			}
	
			_fnFilterComplete( settings, $.extend( {}, settings.oPreviousSearch, {
				"sSearch": input+"",
				"bRegex":  regex === null ? false : regex,
				"bSmart":  smart === null ? true  : smart,
				"bCaseInsensitive": caseInsen === null ? true : caseInsen
			} ), 1 );
		} );
	} );
	
	
	_api_registerPlural(
		'columns().search()',
		'column().search()',
		function ( input, regex, smart, caseInsen ) {
			return this.iterator( 'column', function ( settings, column ) {
				var preSearch = settings.aoPreSearchCols;
	
				if ( input === undefined ) {
					// get
					return preSearch[ column ].sSearch;
				}
	
				// set
				if ( ! settings.oFeatures.bFilter ) {
					return;
				}
	
				$.extend( preSearch[ column ], {
					"sSearch": input+"",
					"bRegex":  regex === null ? false : regex,
					"bSmart":  smart === null ? true  : smart,
					"bCaseInsensitive": caseInsen === null ? true : caseInsen
				} );
	
				_fnFilterComplete( settings, settings.oPreviousSearch, 1 );
			} );
		}
	);
	
	/*
	 * State API methods
	 */
	
	_api_register( 'state()', function () {
		return this.context.length ?
			this.context[0].oSavedState :
			null;
	} );
	
	
	_api_register( 'state.clear()', function () {
		return this.iterator( 'table', function ( settings ) {
			// Save an empty object
			settings.fnStateSaveCallback.call( settings.oInstance, settings, {} );
		} );
	} );
	
	
	_api_register( 'state.loaded()', function () {
		return this.context.length ?
			this.context[0].oLoadedState :
			null;
	} );
	
	
	_api_register( 'state.save()', function () {
		return this.iterator( 'table', function ( settings ) {
			_fnSaveState( settings );
		} );
	} );
	
	
	
	/**
	 * Provide a common method for plug-ins to check the version of DataTables being
	 * used, in order to ensure compatibility.
	 *
	 *  @param {string} version Version string to check for, in the format "X.Y.Z".
	 *    Note that the formats "X" and "X.Y" are also acceptable.
	 *  @returns {boolean} true if this version of DataTables is greater or equal to
	 *    the required version, or false if this version of DataTales is not
	 *    suitable
	 *  @static
	 *  @dtopt API-Static
	 *
	 *  @example
	 *    alert( $.fn.dataTable.versionCheck( '1.9.0' ) );
	 */
	DataTable.versionCheck = DataTable.fnVersionCheck = function( version )
	{
		var aThis = DataTable.version.split('.');
		var aThat = version.split('.');
		var iThis, iThat;
	
		for ( var i=0, iLen=aThat.length ; i<iLen ; i++ ) {
			iThis = parseInt( aThis[i], 10 ) || 0;
			iThat = parseInt( aThat[i], 10 ) || 0;
	
			// Parts are the same, keep comparing
			if (iThis === iThat) {
				continue;
			}
	
			// Parts are different, return immediately
			return iThis > iThat;
		}
	
		return true;
	};
	
	
	/**
	 * Check if a `<table>` node is a DataTable table already or not.
	 *
	 *  @param {node|jquery|string} table Table node, jQuery object or jQuery
	 *      selector for the table to test. Note that if more than more than one
	 *      table is passed on, only the first will be checked
	 *  @returns {boolean} true the table given is a DataTable, or false otherwise
	 *  @static
	 *  @dtopt API-Static
	 *
	 *  @example
	 *    if ( ! $.fn.DataTable.isDataTable( '#example' ) ) {
	 *      $('#example').dataTable();
	 *    }
	 */
	DataTable.isDataTable = DataTable.fnIsDataTable = function ( table )
	{
		var t = $(table).get(0);
		var is = false;
	
		if ( table instanceof DataTable.Api ) {
			return true;
		}
	
		$.each( DataTable.settings, function (i, o) {
			var head = o.nScrollHead ? $('table', o.nScrollHead)[0] : null;
			var foot = o.nScrollFoot ? $('table', o.nScrollFoot)[0] : null;
	
			if ( o.nTable === t || head === t || foot === t ) {
				is = true;
			}
		} );
	
		return is;
	};
	
	
	/**
	 * Get all DataTable tables that have been initialised - optionally you can
	 * select to get only currently visible tables.
	 *
	 *  @param {boolean} [visible=false] Flag to indicate if you want all (default)
	 *    or visible tables only.
	 *  @returns {array} Array of `table` nodes (not DataTable instances) which are
	 *    DataTables
	 *  @static
	 *  @dtopt API-Static
	 *
	 *  @example
	 *    $.each( $.fn.dataTable.tables(true), function () {
	 *      $(table).DataTable().columns.adjust();
	 *    } );
	 */
	DataTable.tables = DataTable.fnTables = function ( visible )
	{
		var api = false;
	
		if ( $.isPlainObject( visible ) ) {
			api = visible.api;
			visible = visible.visible;
		}
	
		var a = $.map( DataTable.settings, function (o) {
			if ( !visible || (visible && $(o.nTable).is(':visible')) ) {
				return o.nTable;
			}
		} );
	
		return api ?
			new _Api( a ) :
			a;
	};
	
	
	/**
	 * Convert from camel case parameters to Hungarian notation. This is made public
	 * for the extensions to provide the same ability as DataTables core to accept
	 * either the 1.9 style Hungarian notation, or the 1.10+ style camelCase
	 * parameters.
	 *
	 *  @param {object} src The model object which holds all parameters that can be
	 *    mapped.
	 *  @param {object} user The object to convert from camel case to Hungarian.
	 *  @param {boolean} force When set to `true`, properties which already have a
	 *    Hungarian value in the `user` object will be overwritten. Otherwise they
	 *    won't be.
	 */
	DataTable.camelToHungarian = _fnCamelToHungarian;
	
	
	
	/**
	 *
	 */
	_api_register( '$()', function ( selector, opts ) {
		var
			rows   = this.rows( opts ).nodes(), // Get all rows
			jqRows = $(rows);
	
		return $( [].concat(
			jqRows.filter( selector ).toArray(),
			jqRows.find( selector ).toArray()
		) );
	} );
	
	
	// jQuery functions to operate on the tables
	$.each( [ 'on', 'one', 'off' ], function (i, key) {
		_api_register( key+'()', function ( /* event, handler */ ) {
			var args = Array.prototype.slice.call(arguments);
	
			// Add the `dt` namespace automatically if it isn't already present
			args[0] = $.map( args[0].split( /\s/ ), function ( e ) {
				return ! e.match(/\.dt\b/) ?
					e+'.dt' :
					e;
				} ).join( ' ' );
	
			var inst = $( this.tables().nodes() );
			inst[key].apply( inst, args );
			return this;
		} );
	} );
	
	
	_api_register( 'clear()', function () {
		return this.iterator( 'table', function ( settings ) {
			_fnClearTable( settings );
		} );
	} );
	
	
	_api_register( 'settings()', function () {
		return new _Api( this.context, this.context );
	} );
	
	
	_api_register( 'init()', function () {
		var ctx = this.context;
		return ctx.length ? ctx[0].oInit : null;
	} );
	
	
	_api_register( 'data()', function () {
		return this.iterator( 'table', function ( settings ) {
			return _pluck( settings.aoData, '_aData' );
		} ).flatten();
	} );
	
	
	_api_register( 'destroy()', function ( remove ) {
		remove = remove || false;
	
		return this.iterator( 'table', function ( settings ) {
			var orig      = settings.nTableWrapper.parentNode;
			var classes   = settings.oClasses;
			var table     = settings.nTable;
			var tbody     = settings.nTBody;
			var thead     = settings.nTHead;
			var tfoot     = settings.nTFoot;
			var jqTable   = $(table);
			var jqTbody   = $(tbody);
			var jqWrapper = $(settings.nTableWrapper);
			var rows      = $.map( settings.aoData, function (r) { return r.nTr; } );
			var i, ien;
	
			// Flag to note that the table is currently being destroyed - no action
			// should be taken
			settings.bDestroying = true;
	
			// Fire off the destroy callbacks for plug-ins etc
			_fnCallbackFire( settings, "aoDestroyCallback", "destroy", [settings] );
	
			// If not being removed from the document, make all columns visible
			if ( ! remove ) {
				new _Api( settings ).columns().visible( true );
			}
	
			// Blitz all `DT` namespaced events (these are internal events, the
			// lowercase, `dt` events are user subscribed and they are responsible
			// for removing them
			jqWrapper.off('.DT').find(':not(tbody *)').off('.DT');
			$(window).off('.DT-'+settings.sInstance);
	
			// When scrolling we had to break the table up - restore it
			if ( table != thead.parentNode ) {
				jqTable.children('thead').detach();
				jqTable.append( thead );
			}
	
			if ( tfoot && table != tfoot.parentNode ) {
				jqTable.children('tfoot').detach();
				jqTable.append( tfoot );
			}
	
			settings.aaSorting = [];
			settings.aaSortingFixed = [];
			_fnSortingClasses( settings );
	
			$( rows ).removeClass( settings.asStripeClasses.join(' ') );
	
			$('th, td', thead).removeClass( classes.sSortable+' '+
				classes.sSortableAsc+' '+classes.sSortableDesc+' '+classes.sSortableNone
			);
	
			// Add the TR elements back into the table in their original order
			jqTbody.children().detach();
			jqTbody.append( rows );
	
			// Remove the DataTables generated nodes, events and classes
			var removedMethod = remove ? 'remove' : 'detach';
			jqTable[ removedMethod ]();
			jqWrapper[ removedMethod ]();
	
			// If we need to reattach the table to the document
			if ( ! remove && orig ) {
				// insertBefore acts like appendChild if !arg[1]
				orig.insertBefore( table, settings.nTableReinsertBefore );
	
				// Restore the width of the original table - was read from the style property,
				// so we can restore directly to that
				jqTable
					.css( 'width', settings.sDestroyWidth )
					.removeClass( classes.sTable );
	
				// If the were originally stripe classes - then we add them back here.
				// Note this is not fool proof (for example if not all rows had stripe
				// classes - but it's a good effort without getting carried away
				ien = settings.asDestroyStripes.length;
	
				if ( ien ) {
					jqTbody.children().each( function (i) {
						$(this).addClass( settings.asDestroyStripes[i % ien] );
					} );
				}
			}
	
			/* Remove the settings object from the settings array */
			var idx = $.inArray( settings, DataTable.settings );
			if ( idx !== -1 ) {
				DataTable.settings.splice( idx, 1 );
			}
		} );
	} );
	
	
	// Add the `every()` method for rows, columns and cells in a compact form
	$.each( [ 'column', 'row', 'cell' ], function ( i, type ) {
		_api_register( type+'s().every()', function ( fn ) {
			var opts = this.selector.opts;
			var api = this;
	
			return this.iterator( type, function ( settings, arg1, arg2, arg3, arg4 ) {
				// Rows and columns:
				//  arg1 - index
				//  arg2 - table counter
				//  arg3 - loop counter
				//  arg4 - undefined
				// Cells:
				//  arg1 - row index
				//  arg2 - column index
				//  arg3 - table counter
				//  arg4 - loop counter
				fn.call(
					api[ type ](
						arg1,
						type==='cell' ? arg2 : opts,
						type==='cell' ? opts : undefined
					),
					arg1, arg2, arg3, arg4
				);
			} );
		} );
	} );
	
	
	// i18n method for extensions to be able to use the language object from the
	// DataTable
	_api_register( 'i18n()', function ( token, def, plural ) {
		var ctx = this.context[0];
		var resolved = _fnGetObjectDataFn( token )( ctx.oLanguage );
	
		if ( resolved === undefined ) {
			resolved = def;
		}
	
		if ( plural !== undefined && $.isPlainObject( resolved ) ) {
			resolved = resolved[ plural ] !== undefined ?
				resolved[ plural ] :
				resolved._;
		}
	
		return resolved.replace( '%d', plural ); // nb: plural might be undefined,
	} );
	/**
	 * Version string for plug-ins to check compatibility. Allowed format is
	 * `a.b.c-d` where: a:int, b:int, c:int, d:string(dev|beta|alpha). `d` is used
	 * only for non-release builds. See http://semver.org/ for more information.
	 *  @member
	 *  @type string
	 *  @default Version number
	 */
	DataTable.version = "1.10.25";

	/**
	 * Private data store, containing all of the settings objects that are
	 * created for the tables on a given page.
	 *
	 * Note that the `DataTable.settings` object is aliased to
	 * `jQuery.fn.dataTableExt` through which it may be accessed and
	 * manipulated, or `jQuery.fn.dataTable.settings`.
	 *  @member
	 *  @type array
	 *  @default []
	 *  @private
	 */
	DataTable.settings = [];

	/**
	 * Object models container, for the various models that DataTables has
	 * available to it. These models define the objects that are used to hold
	 * the active state and configuration of the table.
	 *  @namespace
	 */
	DataTable.models = {};
	
	
	
	/**
	 * Template object for the way in which DataTables holds information about
	 * search information for the global filter and individual column filters.
	 *  @namespace
	 */
	DataTable.models.oSearch = {
		/**
		 * Flag to indicate if the filtering should be case insensitive or not
		 *  @type boolean
		 *  @default true
		 */
		"bCaseInsensitive": true,
	
		/**
		 * Applied search term
		 *  @type string
		 *  @default <i>Empty string</i>
		 */
		"sSearch": "",
	
		/**
		 * Flag to indicate if the search term should be interpreted as a
		 * regular expression (true) or not (false) and therefore and special
		 * regex characters escaped.
		 *  @type boolean
		 *  @default false
		 */
		"bRegex": false,
	
		/**
		 * Flag to indicate if DataTables is to use its smart filtering or not.
		 *  @type boolean
		 *  @default true
		 */
		"bSmart": true
	};
	
	
	
	
	/**
	 * Template object for the way in which DataTables holds information about
	 * each individual row. This is the object format used for the settings
	 * aoData array.
	 *  @namespace
	 */
	DataTable.models.oRow = {
		/**
		 * TR element for the row
		 *  @type node
		 *  @default null
		 */
		"nTr": null,
	
		/**
		 * Array of TD elements for each row. This is null until the row has been
		 * created.
		 *  @type array nodes
		 *  @default []
		 */
		"anCells": null,
	
		/**
		 * Data object from the original data source for the row. This is either
		 * an array if using the traditional form of DataTables, or an object if
		 * using mData options. The exact type will depend on the passed in
		 * data from the data source, or will be an array if using DOM a data
		 * source.
		 *  @type array|object
		 *  @default []
		 */
		"_aData": [],
	
		/**
		 * Sorting data cache - this array is ostensibly the same length as the
		 * number of columns (although each index is generated only as it is
		 * needed), and holds the data that is used for sorting each column in the
		 * row. We do this cache generation at the start of the sort in order that
		 * the formatting of the sort data need be done only once for each cell
		 * per sort. This array should not be read from or written to by anything
		 * other than the master sorting methods.
		 *  @type array
		 *  @default null
		 *  @private
		 */
		"_aSortData": null,
	
		/**
		 * Per cell filtering data cache. As per the sort data cache, used to
		 * increase the performance of the filtering in DataTables
		 *  @type array
		 *  @default null
		 *  @private
		 */
		"_aFilterData": null,
	
		/**
		 * Filtering data cache. This is the same as the cell filtering cache, but
		 * in this case a string rather than an array. This is easily computed with
		 * a join on `_aFilterData`, but is provided as a cache so the join isn't
		 * needed on every search (memory traded for performance)
		 *  @type array
		 *  @default null
		 *  @private
		 */
		"_sFilterRow": null,
	
		/**
		 * Cache of the class name that DataTables has applied to the row, so we
		 * can quickly look at this variable rather than needing to do a DOM check
		 * on className for the nTr property.
		 *  @type string
		 *  @default <i>Empty string</i>
		 *  @private
		 */
		"_sRowStripe": "",
	
		/**
		 * Denote if the original data source was from the DOM, or the data source
		 * object. This is used for invalidating data, so DataTables can
		 * automatically read data from the original source, unless uninstructed
		 * otherwise.
		 *  @type string
		 *  @default null
		 *  @private
		 */
		"src": null,
	
		/**
		 * Index in the aoData array. This saves an indexOf lookup when we have the
		 * object, but want to know the index
		 *  @type integer
		 *  @default -1
		 *  @private
		 */
		"idx": -1
	};
	
	
	/**
	 * Template object for the column information object in DataTables. This object
	 * is held in the settings aoColumns array and contains all the information that
	 * DataTables needs about each individual column.
	 *
	 * Note that this object is related to {@link DataTable.defaults.column}
	 * but this one is the internal data store for DataTables's cache of columns.
	 * It should NOT be manipulated outside of DataTables. Any configuration should
	 * be done through the initialisation options.
	 *  @namespace
	 */
	DataTable.models.oColumn = {
		/**
		 * Column index. This could be worked out on-the-fly with $.inArray, but it
		 * is faster to just hold it as a variable
		 *  @type integer
		 *  @default null
		 */
		"idx": null,
	
		/**
		 * A list of the columns that sorting should occur on when this column
		 * is sorted. That this property is an array allows multi-column sorting
		 * to be defined for a column (for example first name / last name columns
		 * would benefit from this). The values are integers pointing to the
		 * columns to be sorted on (typically it will be a single integer pointing
		 * at itself, but that doesn't need to be the case).
		 *  @type array
		 */
		"aDataSort": null,
	
		/**
		 * Define the sorting directions that are applied to the column, in sequence
		 * as the column is repeatedly sorted upon - i.e. the first value is used
		 * as the sorting direction when the column if first sorted (clicked on).
		 * Sort it again (click again) and it will move on to the next index.
		 * Repeat until loop.
		 *  @type array
		 */
		"asSorting": null,
	
		/**
		 * Flag to indicate if the column is searchable, and thus should be included
		 * in the filtering or not.
		 *  @type boolean
		 */
		"bSearchable": null,
	
		/**
		 * Flag to indicate if the column is sortable or not.
		 *  @type boolean
		 */
		"bSortable": null,
	
		/**
		 * Flag to indicate if the column is currently visible in the table or not
		 *  @type boolean
		 */
		"bVisible": null,
	
		/**
		 * Store for manual type assignment using the `column.type` option. This
		 * is held in store so we can manipulate the column's `sType` property.
		 *  @type string
		 *  @default null
		 *  @private
		 */
		"_sManualType": null,
	
		/**
		 * Flag to indicate if HTML5 data attributes should be used as the data
		 * source for filtering or sorting. True is either are.
		 *  @type boolean
		 *  @default false
		 *  @private
		 */
		"_bAttrSrc": false,
	
		/**
		 * Developer definable function that is called whenever a cell is created (Ajax source,
		 * etc) or processed for input (DOM source). This can be used as a compliment to mRender
		 * allowing you to modify the DOM element (add background colour for example) when the
		 * element is available.
		 *  @type function
		 *  @param {element} nTd The TD node that has been created
		 *  @param {*} sData The Data for the cell
		 *  @param {array|object} oData The data for the whole row
		 *  @param {int} iRow The row index for the aoData data store
		 *  @default null
		 */
		"fnCreatedCell": null,
	
		/**
		 * Function to get data from a cell in a column. You should <b>never</b>
		 * access data directly through _aData internally in DataTables - always use
		 * the method attached to this property. It allows mData to function as
		 * required. This function is automatically assigned by the column
		 * initialisation method
		 *  @type function
		 *  @param {array|object} oData The data array/object for the array
		 *    (i.e. aoData[]._aData)
		 *  @param {string} sSpecific The specific data type you want to get -
		 *    'display', 'type' 'filter' 'sort'
		 *  @returns {*} The data for the cell from the given row's data
		 *  @default null
		 */
		"fnGetData": null,
	
		/**
		 * Function to set data for a cell in the column. You should <b>never</b>
		 * set the data directly to _aData internally in DataTables - always use
		 * this method. It allows mData to function as required. This function
		 * is automatically assigned by the column initialisation method
		 *  @type function
		 *  @param {array|object} oData The data array/object for the array
		 *    (i.e. aoData[]._aData)
		 *  @param {*} sValue Value to set
		 *  @default null
		 */
		"fnSetData": null,
	
		/**
		 * Property to read the value for the cells in the column from the data
		 * source array / object. If null, then the default content is used, if a
		 * function is given then the return from the function is used.
		 *  @type function|int|string|null
		 *  @default null
		 */
		"mData": null,
	
		/**
		 * Partner property to mData which is used (only when defined) to get
		 * the data - i.e. it is basically the same as mData, but without the
		 * 'set' option, and also the data fed to it is the result from mData.
		 * This is the rendering method to match the data method of mData.
		 *  @type function|int|string|null
		 *  @default null
		 */
		"mRender": null,
	
		/**
		 * Unique header TH/TD element for this column - this is what the sorting
		 * listener is attached to (if sorting is enabled.)
		 *  @type node
		 *  @default null
		 */
		"nTh": null,
	
		/**
		 * Unique footer TH/TD element for this column (if there is one). Not used
		 * in DataTables as such, but can be used for plug-ins to reference the
		 * footer for each column.
		 *  @type node
		 *  @default null
		 */
		"nTf": null,
	
		/**
		 * The class to apply to all TD elements in the table's TBODY for the column
		 *  @type string
		 *  @default null
		 */
		"sClass": null,
	
		/**
		 * When DataTables calculates the column widths to assign to each column,
		 * it finds the longest string in each column and then constructs a
		 * temporary table and reads the widths from that. The problem with this
		 * is that "mmm" is much wider then "iiii", but the latter is a longer
		 * string - thus the calculation can go wrong (doing it properly and putting
		 * it into an DOM object and measuring that is horribly(!) slow). Thus as
		 * a "work around" we provide this option. It will append its value to the
		 * text that is found to be the longest string for the column - i.e. padding.
		 *  @type string
		 */
		"sContentPadding": null,
	
		/**
		 * Allows a default value to be given for a column's data, and will be used
		 * whenever a null data source is encountered (this can be because mData
		 * is set to null, or because the data source itself is null).
		 *  @type string
		 *  @default null
		 */
		"sDefaultContent": null,
	
		/**
		 * Name for the column, allowing reference to the column by name as well as
		 * by index (needs a lookup to work by name).
		 *  @type string
		 */
		"sName": null,
	
		/**
		 * Custom sorting data type - defines which of the available plug-ins in
		 * afnSortData the custom sorting will use - if any is defined.
		 *  @type string
		 *  @default std
		 */
		"sSortDataType": 'std',
	
		/**
		 * Class to be applied to the header element when sorting on this column
		 *  @type string
		 *  @default null
		 */
		"sSortingClass": null,
	
		/**
		 * Class to be applied to the header element when sorting on this column -
		 * when jQuery UI theming is used.
		 *  @type string
		 *  @default null
		 */
		"sSortingClassJUI": null,
	
		/**
		 * Title of the column - what is seen in the TH element (nTh).
		 *  @type string
		 */
		"sTitle": null,
	
		/**
		 * Column sorting and filtering type
		 *  @type string
		 *  @default null
		 */
		"sType": null,
	
		/**
		 * Width of the column
		 *  @type string
		 *  @default null
		 */
		"sWidth": null,
	
		/**
		 * Width of the column when it was first "encountered"
		 *  @type string
		 *  @default null
		 */
		"sWidthOrig": null
	};
	
	
	/*
	 * Developer note: The properties of the object below are given in Hungarian
	 * notation, that was used as the interface for DataTables prior to v1.10, however
	 * from v1.10 onwards the primary interface is camel case. In order to avoid
	 * breaking backwards compatibility utterly with this change, the Hungarian
	 * version is still, internally the primary interface, but is is not documented
	 * - hence the @name tags in each doc comment. This allows a Javascript function
	 * to create a map from Hungarian notation to camel case (going the other direction
	 * would require each property to be listed, which would add around 3K to the size
	 * of DataTables, while this method is about a 0.5K hit).
	 *
	 * Ultimately this does pave the way for Hungarian notation to be dropped
	 * completely, but that is a massive amount of work and will break current
	 * installs (therefore is on-hold until v2).
	 */
	
	/**
	 * Initialisation options that can be given to DataTables at initialisation
	 * time.
	 *  @namespace
	 */
	DataTable.defaults = {
		/**
		 * An array of data to use for the table, passed in at initialisation which
		 * will be used in preference to any data which is already in the DOM. This is
		 * particularly useful for constructing tables purely in Javascript, for
		 * example with a custom Ajax call.
		 *  @type array
		 *  @default null
		 *
		 *  @dtopt Option
		 *  @name DataTable.defaults.data
		 *
		 *  @example
		 *    // Using a 2D array data source
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "data": [
		 *          ['Trident', 'Internet Explorer 4.0', 'Win 95+', 4, 'X'],
		 *          ['Trident', 'Internet Explorer 5.0', 'Win 95+', 5, 'C'],
		 *        ],
		 *        "columns": [
		 *          { "title": "Engine" },
		 *          { "title": "Browser" },
		 *          { "title": "Platform" },
		 *          { "title": "Version" },
		 *          { "title": "Grade" }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using an array of objects as a data source (`data`)
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "data": [
		 *          {
		 *            "engine":   "Trident",
		 *            "browser":  "Internet Explorer 4.0",
		 *            "platform": "Win 95+",
		 *            "version":  4,
		 *            "grade":    "X"
		 *          },
		 *          {
		 *            "engine":   "Trident",
		 *            "browser":  "Internet Explorer 5.0",
		 *            "platform": "Win 95+",
		 *            "version":  5,
		 *            "grade":    "C"
		 *          }
		 *        ],
		 *        "columns": [
		 *          { "title": "Engine",   "data": "engine" },
		 *          { "title": "Browser",  "data": "browser" },
		 *          { "title": "Platform", "data": "platform" },
		 *          { "title": "Version",  "data": "version" },
		 *          { "title": "Grade",    "data": "grade" }
		 *        ]
		 *      } );
		 *    } );
		 */
		"aaData": null,
	
	
		/**
		 * If ordering is enabled, then DataTables will perform a first pass sort on
		 * initialisation. You can define which column(s) the sort is performed
		 * upon, and the sorting direction, with this variable. The `sorting` array
		 * should contain an array for each column to be sorted initially containing
		 * the column's index and a direction string ('asc' or 'desc').
		 *  @type array
		 *  @default [[0,'asc']]
		 *
		 *  @dtopt Option
		 *  @name DataTable.defaults.order
		 *
		 *  @example
		 *    // Sort by 3rd column first, and then 4th column
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "order": [[2,'asc'], [3,'desc']]
		 *      } );
		 *    } );
		 *
		 *    // No initial sorting
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "order": []
		 *      } );
		 *    } );
		 */
		"aaSorting": [[0,'asc']],
	
	
		/**
		 * This parameter is basically identical to the `sorting` parameter, but
		 * cannot be overridden by user interaction with the table. What this means
		 * is that you could have a column (visible or hidden) which the sorting
		 * will always be forced on first - any sorting after that (from the user)
		 * will then be performed as required. This can be useful for grouping rows
		 * together.
		 *  @type array
		 *  @default null
		 *
		 *  @dtopt Option
		 *  @name DataTable.defaults.orderFixed
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "orderFixed": [[0,'asc']]
		 *      } );
		 *    } )
		 */
		"aaSortingFixed": [],
	
	
		/**
		 * DataTables can be instructed to load data to display in the table from a
		 * Ajax source. This option defines how that Ajax call is made and where to.
		 *
		 * The `ajax` property has three different modes of operation, depending on
		 * how it is defined. These are:
		 *
		 * * `string` - Set the URL from where the data should be loaded from.
		 * * `object` - Define properties for `jQuery.ajax`.
		 * * `function` - Custom data get function
		 *
		 * `string`
		 * --------
		 *
		 * As a string, the `ajax` property simply defines the URL from which
		 * DataTables will load data.
		 *
		 * `object`
		 * --------
		 *
		 * As an object, the parameters in the object are passed to
		 * [jQuery.ajax](http://api.jquery.com/jQuery.ajax/) allowing fine control
		 * of the Ajax request. DataTables has a number of default parameters which
		 * you can override using this option. Please refer to the jQuery
		 * documentation for a full description of the options available, although
		 * the following parameters provide additional options in DataTables or
		 * require special consideration:
		 *
		 * * `data` - As with jQuery, `data` can be provided as an object, but it
		 *   can also be used as a function to manipulate the data DataTables sends
		 *   to the server. The function takes a single parameter, an object of
		 *   parameters with the values that DataTables has readied for sending. An
		 *   object may be returned which will be merged into the DataTables
		 *   defaults, or you can add the items to the object that was passed in and
		 *   not return anything from the function. This supersedes `fnServerParams`
		 *   from DataTables 1.9-.
		 *
		 * * `dataSrc` - By default DataTables will look for the property `data` (or
		 *   `aaData` for compatibility with DataTables 1.9-) when obtaining data
		 *   from an Ajax source or for server-side processing - this parameter
		 *   allows that property to be changed. You can use Javascript dotted
		 *   object notation to get a data source for multiple levels of nesting, or
		 *   it my be used as a function. As a function it takes a single parameter,
		 *   the JSON returned from the server, which can be manipulated as
		 *   required, with the returned value being that used by DataTables as the
		 *   data source for the table. This supersedes `sAjaxDataProp` from
		 *   DataTables 1.9-.
		 *
		 * * `success` - Should not be overridden it is used internally in
		 *   DataTables. To manipulate / transform the data returned by the server
		 *   use `ajax.dataSrc`, or use `ajax` as a function (see below).
		 *
		 * `function`
		 * ----------
		 *
		 * As a function, making the Ajax call is left up to yourself allowing
		 * complete control of the Ajax request. Indeed, if desired, a method other
		 * than Ajax could be used to obtain the required data, such as Web storage
		 * or an AIR database.
		 *
		 * The function is given four parameters and no return is required. The
		 * parameters are:
		 *
		 * 1. _object_ - Data to send to the server
		 * 2. _function_ - Callback function that must be executed when the required
		 *    data has been obtained. That data should be passed into the callback
		 *    as the only parameter
		 * 3. _object_ - DataTables settings object for the table
		 *
		 * Note that this supersedes `fnServerData` from DataTables 1.9-.
		 *
		 *  @type string|object|function
		 *  @default null
		 *
		 *  @dtopt Option
		 *  @name DataTable.defaults.ajax
		 *  @since 1.10.0
		 *
		 * @example
		 *   // Get JSON data from a file via Ajax.
		 *   // Note DataTables expects data in the form `{ data: [ ...data... ] }` by default).
		 *   $('#example').dataTable( {
		 *     "ajax": "data.json"
		 *   } );
		 *
		 * @example
		 *   // Get JSON data from a file via Ajax, using `dataSrc` to change
		 *   // `data` to `tableData` (i.e. `{ tableData: [ ...data... ] }`)
		 *   $('#example').dataTable( {
		 *     "ajax": {
		 *       "url": "data.json",
		 *       "dataSrc": "tableData"
		 *     }
		 *   } );
		 *
		 * @example
		 *   // Get JSON data from a file via Ajax, using `dataSrc` to read data
		 *   // from a plain array rather than an array in an object
		 *   $('#example').dataTable( {
		 *     "ajax": {
		 *       "url": "data.json",
		 *       "dataSrc": ""
		 *     }
		 *   } );
		 *
		 * @example
		 *   // Manipulate the data returned from the server - add a link to data
		 *   // (note this can, should, be done using `render` for the column - this
		 *   // is just a simple example of how the data can be manipulated).
		 *   $('#example').dataTable( {
		 *     "ajax": {
		 *       "url": "data.json",
		 *       "dataSrc": function ( json ) {
		 *         for ( var i=0, ien=json.length ; i<ien ; i++ ) {
		 *           json[i][0] = '<a href="/message/'+json[i][0]+'>View message</a>';
		 *         }
		 *         return json;
		 *       }
		 *     }
		 *   } );
		 *
		 * @example
		 *   // Add data to the request
		 *   $('#example').dataTable( {
		 *     "ajax": {
		 *       "url": "data.json",
		 *       "data": function ( d ) {
		 *         return {
		 *           "extra_search": $('#extra').val()
		 *         };
		 *       }
		 *     }
		 *   } );
		 *
		 * @example
		 *   // Send request as POST
		 *   $('#example').dataTable( {
		 *     "ajax": {
		 *       "url": "data.json",
		 *       "type": "POST"
		 *     }
		 *   } );
		 *
		 * @example
		 *   // Get the data from localStorage (could interface with a form for
		 *   // adding, editing and removing rows).
		 *   $('#example').dataTable( {
		 *     "ajax": function (data, callback, settings) {
		 *       callback(
		 *         JSON.parse( localStorage.getItem('dataTablesData') )
		 *       );
		 *     }
		 *   } );
		 */
		"ajax": null,
	
	
		/**
		 * This parameter allows you to readily specify the entries in the length drop
		 * down menu that DataTables shows when pagination is enabled. It can be
		 * either a 1D array of options which will be used for both the displayed
		 * option and the value, or a 2D array which will use the array in the first
		 * position as the value, and the array in the second position as the
		 * displayed options (useful for language strings such as 'All').
		 *
		 * Note that the `pageLength` property will be automatically set to the
		 * first value given in this array, unless `pageLength` is also provided.
		 *  @type array
		 *  @default [ 10, 25, 50, 100 ]
		 *
		 *  @dtopt Option
		 *  @name DataTable.defaults.lengthMenu
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "lengthMenu": [[10, 25, 50, -1], [10, 25, 50, "All"]]
		 *      } );
		 *    } );
		 */
		"aLengthMenu": [ 10, 25, 50, 100 ],
	
	
		/**
		 * The `columns` option in the initialisation parameter allows you to define
		 * details about the way individual columns behave. For a full list of
		 * column options that can be set, please see
		 * {@link DataTable.defaults.column}. Note that if you use `columns` to
		 * define your columns, you must have an entry in the array for every single
		 * column that you have in your table (these can be null if you don't which
		 * to specify any options).
		 *  @member
		 *
		 *  @name DataTable.defaults.column
		 */
		"aoColumns": null,
	
		/**
		 * Very similar to `columns`, `columnDefs` allows you to target a specific
		 * column, multiple columns, or all columns, using the `targets` property of
		 * each object in the array. This allows great flexibility when creating
		 * tables, as the `columnDefs` arrays can be of any length, targeting the
		 * columns you specifically want. `columnDefs` may use any of the column
		 * options available: {@link DataTable.defaults.column}, but it _must_
		 * have `targets` defined in each object in the array. Values in the `targets`
		 * array may be:
		 *   <ul>
		 *     <li>a string - class name will be matched on the TH for the column</li>
		 *     <li>0 or a positive integer - column index counting from the left</li>
		 *     <li>a negative integer - column index counting from the right</li>
		 *     <li>the string "_all" - all columns (i.e. assign a default)</li>
		 *   </ul>
		 *  @member
		 *
		 *  @name DataTable.defaults.columnDefs
		 */
		"aoColumnDefs": null,
	
	
		/**
		 * Basically the same as `search`, this parameter defines the individual column
		 * filtering state at initialisation time. The array must be of the same size
		 * as the number of columns, and each element be an object with the parameters
		 * `search` and `escapeRegex` (the latter is optional). 'null' is also
		 * accepted and the default will be used.
		 *  @type array
		 *  @default []
		 *
		 *  @dtopt Option
		 *  @name DataTable.defaults.searchCols
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "searchCols": [
		 *          null,
		 *          { "search": "My filter" },
		 *          null,
		 *          { "search": "^[0-9]", "escapeRegex": false }
		 *        ]
		 *      } );
		 *    } )
		 */
		"aoSearchCols": [],
	
	
		/**
		 * An array of CSS classes that should be applied to displayed rows. This
		 * array may be of any length, and DataTables will apply each class
		 * sequentially, looping when required.
		 *  @type array
		 *  @default null <i>Will take the values determined by the `oClasses.stripe*`
		 *    options</i>
		 *
		 *  @dtopt Option
		 *  @name DataTable.defaults.stripeClasses
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "stripeClasses": [ 'strip1', 'strip2', 'strip3' ]
		 *      } );
		 *    } )
		 */
		"asStripeClasses": null,
	
	
		/**
		 * Enable or disable automatic column width calculation. This can be disabled
		 * as an optimisation (it takes some time to calculate the widths) if the
		 * tables widths are passed in using `columns`.
		 *  @type boolean
		 *  @default true
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.autoWidth
		 *
		 *  @example
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "autoWidth": false
		 *      } );
		 *    } );
		 */
		"bAutoWidth": true,
	
	
		/**
		 * Deferred rendering can provide DataTables with a huge speed boost when you
		 * are using an Ajax or JS data source for the table. This option, when set to
		 * true, will cause DataTables to defer the creation of the table elements for
		 * each row until they are needed for a draw - saving a significant amount of
		 * time.
		 *  @type boolean
		 *  @default false
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.deferRender
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "ajax": "sources/arrays.txt",
		 *        "deferRender": true
		 *      } );
		 *    } );
		 */
		"bDeferRender": false,
	
	
		/**
		 * Replace a DataTable which matches the given selector and replace it with
		 * one which has the properties of the new initialisation object passed. If no
		 * table matches the selector, then the new DataTable will be constructed as
		 * per normal.
		 *  @type boolean
		 *  @default false
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.destroy
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "srollY": "200px",
		 *        "paginate": false
		 *      } );
		 *
		 *      // Some time later....
		 *      $('#example').dataTable( {
		 *        "filter": false,
		 *        "destroy": true
		 *      } );
		 *    } );
		 */
		"bDestroy": false,
	
	
		/**
		 * Enable or disable filtering of data. Filtering in DataTables is "smart" in
		 * that it allows the end user to input multiple words (space separated) and
		 * will match a row containing those words, even if not in the order that was
		 * specified (this allow matching across multiple columns). Note that if you
		 * wish to use filtering in DataTables this must remain 'true' - to remove the
		 * default filtering input box and retain filtering abilities, please use
		 * {@link DataTable.defaults.dom}.
		 *  @type boolean
		 *  @default true
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.searching
		 *
		 *  @example
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "searching": false
		 *      } );
		 *    } );
		 */
		"bFilter": true,
	
	
		/**
		 * Enable or disable the table information display. This shows information
		 * about the data that is currently visible on the page, including information
		 * about filtered data if that action is being performed.
		 *  @type boolean
		 *  @default true
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.info
		 *
		 *  @example
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "info": false
		 *      } );
		 *    } );
		 */
		"bInfo": true,
	
	
		/**
		 * Allows the end user to select the size of a formatted page from a select
		 * menu (sizes are 10, 25, 50 and 100). Requires pagination (`paginate`).
		 *  @type boolean
		 *  @default true
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.lengthChange
		 *
		 *  @example
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "lengthChange": false
		 *      } );
		 *    } );
		 */
		"bLengthChange": true,
	
	
		/**
		 * Enable or disable pagination.
		 *  @type boolean
		 *  @default true
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.paging
		 *
		 *  @example
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "paging": false
		 *      } );
		 *    } );
		 */
		"bPaginate": true,
	
	
		/**
		 * Enable or disable the display of a 'processing' indicator when the table is
		 * being processed (e.g. a sort). This is particularly useful for tables with
		 * large amounts of data where it can take a noticeable amount of time to sort
		 * the entries.
		 *  @type boolean
		 *  @default false
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.processing
		 *
		 *  @example
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "processing": true
		 *      } );
		 *    } );
		 */
		"bProcessing": false,
	
	
		/**
		 * Retrieve the DataTables object for the given selector. Note that if the
		 * table has already been initialised, this parameter will cause DataTables
		 * to simply return the object that has already been set up - it will not take
		 * account of any changes you might have made to the initialisation object
		 * passed to DataTables (setting this parameter to true is an acknowledgement
		 * that you understand this). `destroy` can be used to reinitialise a table if
		 * you need.
		 *  @type boolean
		 *  @default false
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.retrieve
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      initTable();
		 *      tableActions();
		 *    } );
		 *
		 *    function initTable ()
		 *    {
		 *      return $('#example').dataTable( {
		 *        "scrollY": "200px",
		 *        "paginate": false,
		 *        "retrieve": true
		 *      } );
		 *    }
		 *
		 *    function tableActions ()
		 *    {
		 *      var table = initTable();
		 *      // perform API operations with oTable
		 *    }
		 */
		"bRetrieve": false,
	
	
		/**
		 * When vertical (y) scrolling is enabled, DataTables will force the height of
		 * the table's viewport to the given height at all times (useful for layout).
		 * However, this can look odd when filtering data down to a small data set,
		 * and the footer is left "floating" further down. This parameter (when
		 * enabled) will cause DataTables to collapse the table's viewport down when
		 * the result set will fit within the given Y height.
		 *  @type boolean
		 *  @default false
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.scrollCollapse
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "scrollY": "200",
		 *        "scrollCollapse": true
		 *      } );
		 *    } );
		 */
		"bScrollCollapse": false,
	
	
		/**
		 * Configure DataTables to use server-side processing. Note that the
		 * `ajax` parameter must also be given in order to give DataTables a
		 * source to obtain the required data for each draw.
		 *  @type boolean
		 *  @default false
		 *
		 *  @dtopt Features
		 *  @dtopt Server-side
		 *  @name DataTable.defaults.serverSide
		 *
		 *  @example
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "serverSide": true,
		 *        "ajax": "xhr.php"
		 *      } );
		 *    } );
		 */
		"bServerSide": false,
	
	
		/**
		 * Enable or disable sorting of columns. Sorting of individual columns can be
		 * disabled by the `sortable` option for each column.
		 *  @type boolean
		 *  @default true
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.ordering
		 *
		 *  @example
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "ordering": false
		 *      } );
		 *    } );
		 */
		"bSort": true,
	
	
		/**
		 * Enable or display DataTables' ability to sort multiple columns at the
		 * same time (activated by shift-click by the user).
		 *  @type boolean
		 *  @default true
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.orderMulti
		 *
		 *  @example
		 *    // Disable multiple column sorting ability
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "orderMulti": false
		 *      } );
		 *    } );
		 */
		"bSortMulti": true,
	
	
		/**
		 * Allows control over whether DataTables should use the top (true) unique
		 * cell that is found for a single column, or the bottom (false - default).
		 * This is useful when using complex headers.
		 *  @type boolean
		 *  @default false
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.orderCellsTop
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "orderCellsTop": true
		 *      } );
		 *    } );
		 */
		"bSortCellsTop": false,
	
	
		/**
		 * Enable or disable the addition of the classes `sorting\_1`, `sorting\_2` and
		 * `sorting\_3` to the columns which are currently being sorted on. This is
		 * presented as a feature switch as it can increase processing time (while
		 * classes are removed and added) so for large data sets you might want to
		 * turn this off.
		 *  @type boolean
		 *  @default true
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.orderClasses
		 *
		 *  @example
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "orderClasses": false
		 *      } );
		 *    } );
		 */
		"bSortClasses": true,
	
	
		/**
		 * Enable or disable state saving. When enabled HTML5 `localStorage` will be
		 * used to save table display information such as pagination information,
		 * display length, filtering and sorting. As such when the end user reloads
		 * the page the display display will match what thy had previously set up.
		 *
		 * Due to the use of `localStorage` the default state saving is not supported
		 * in IE6 or 7. If state saving is required in those browsers, use
		 * `stateSaveCallback` to provide a storage solution such as cookies.
		 *  @type boolean
		 *  @default false
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.stateSave
		 *
		 *  @example
		 *    $(document).ready( function () {
		 *      $('#example').dataTable( {
		 *        "stateSave": true
		 *      } );
		 *    } );
		 */
		"bStateSave": false,
	
	
		/**
		 * This function is called when a TR element is created (and all TD child
		 * elements have been inserted), or registered if using a DOM source, allowing
		 * manipulation of the TR element (adding classes etc).
		 *  @type function
		 *  @param {node} row "TR" element for the current row
		 *  @param {array} data Raw data array for this row
		 *  @param {int} dataIndex The index of this row in the internal aoData array
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.createdRow
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "createdRow": function( row, data, dataIndex ) {
		 *          // Bold the grade for all 'A' grade browsers
		 *          if ( data[4] == "A" )
		 *          {
		 *            $('td:eq(4)', row).html( '<b>A</b>' );
		 *          }
		 *        }
		 *      } );
		 *    } );
		 */
		"fnCreatedRow": null,
	
	
		/**
		 * This function is called on every 'draw' event, and allows you to
		 * dynamically modify any aspect you want about the created DOM.
		 *  @type function
		 *  @param {object} settings DataTables settings object
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.drawCallback
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "drawCallback": function( settings ) {
		 *          alert( 'DataTables has redrawn the table' );
		 *        }
		 *      } );
		 *    } );
		 */
		"fnDrawCallback": null,
	
	
		/**
		 * Identical to fnHeaderCallback() but for the table footer this function
		 * allows you to modify the table footer on every 'draw' event.
		 *  @type function
		 *  @param {node} foot "TR" element for the footer
		 *  @param {array} data Full table data (as derived from the original HTML)
		 *  @param {int} start Index for the current display starting point in the
		 *    display array
		 *  @param {int} end Index for the current display ending point in the
		 *    display array
		 *  @param {array int} display Index array to translate the visual position
		 *    to the full data array
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.footerCallback
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "footerCallback": function( tfoot, data, start, end, display ) {
		 *          tfoot.getElementsByTagName('th')[0].innerHTML = "Starting index is "+start;
		 *        }
		 *      } );
		 *    } )
		 */
		"fnFooterCallback": null,
	
	
		/**
		 * When rendering large numbers in the information element for the table
		 * (i.e. "Showing 1 to 10 of 57 entries") DataTables will render large numbers
		 * to have a comma separator for the 'thousands' units (e.g. 1 million is
		 * rendered as "1,000,000") to help readability for the end user. This
		 * function will override the default method DataTables uses.
		 *  @type function
		 *  @member
		 *  @param {int} toFormat number to be formatted
		 *  @returns {string} formatted string for DataTables to show the number
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.formatNumber
		 *
		 *  @example
		 *    // Format a number using a single quote for the separator (note that
		 *    // this can also be done with the language.thousands option)
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "formatNumber": function ( toFormat ) {
		 *          return toFormat.toString().replace(
		 *            /\B(?=(\d{3})+(?!\d))/g, "'"
		 *          );
		 *        };
		 *      } );
		 *    } );
		 */
		"fnFormatNumber": function ( toFormat ) {
			return toFormat.toString().replace(
				/\B(?=(\d{3})+(?!\d))/g,
				this.oLanguage.sThousands
			);
		},
	
	
		/**
		 * This function is called on every 'draw' event, and allows you to
		 * dynamically modify the header row. This can be used to calculate and
		 * display useful information about the table.
		 *  @type function
		 *  @param {node} head "TR" element for the header
		 *  @param {array} data Full table data (as derived from the original HTML)
		 *  @param {int} start Index for the current display starting point in the
		 *    display array
		 *  @param {int} end Index for the current display ending point in the
		 *    display array
		 *  @param {array int} display Index array to translate the visual position
		 *    to the full data array
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.headerCallback
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "fheaderCallback": function( head, data, start, end, display ) {
		 *          head.getElementsByTagName('th')[0].innerHTML = "Displaying "+(end-start)+" records";
		 *        }
		 *      } );
		 *    } )
		 */
		"fnHeaderCallback": null,
	
	
		/**
		 * The information element can be used to convey information about the current
		 * state of the table. Although the internationalisation options presented by
		 * DataTables are quite capable of dealing with most customisations, there may
		 * be times where you wish to customise the string further. This callback
		 * allows you to do exactly that.
		 *  @type function
		 *  @param {object} oSettings DataTables settings object
		 *  @param {int} start Starting position in data for the draw
		 *  @param {int} end End position in data for the draw
		 *  @param {int} max Total number of rows in the table (regardless of
		 *    filtering)
		 *  @param {int} total Total number of rows in the data set, after filtering
		 *  @param {string} pre The string that DataTables has formatted using it's
		 *    own rules
		 *  @returns {string} The string to be displayed in the information element.
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.infoCallback
		 *
		 *  @example
		 *    $('#example').dataTable( {
		 *      "infoCallback": function( settings, start, end, max, total, pre ) {
		 *        return start +" to "+ end;
		 *      }
		 *    } );
		 */
		"fnInfoCallback": null,
	
	
		/**
		 * Called when the table has been initialised. Normally DataTables will
		 * initialise sequentially and there will be no need for this function,
		 * however, this does not hold true when using external language information
		 * since that is obtained using an async XHR call.
		 *  @type function
		 *  @param {object} settings DataTables settings object
		 *  @param {object} json The JSON object request from the server - only
		 *    present if client-side Ajax sourced data is used
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.initComplete
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "initComplete": function(settings, json) {
		 *          alert( 'DataTables has finished its initialisation.' );
		 *        }
		 *      } );
		 *    } )
		 */
		"fnInitComplete": null,
	
	
		/**
		 * Called at the very start of each table draw and can be used to cancel the
		 * draw by returning false, any other return (including undefined) results in
		 * the full draw occurring).
		 *  @type function
		 *  @param {object} settings DataTables settings object
		 *  @returns {boolean} False will cancel the draw, anything else (including no
		 *    return) will allow it to complete.
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.preDrawCallback
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "preDrawCallback": function( settings ) {
		 *          if ( $('#test').val() == 1 ) {
		 *            return false;
		 *          }
		 *        }
		 *      } );
		 *    } );
		 */
		"fnPreDrawCallback": null,
	
	
		/**
		 * This function allows you to 'post process' each row after it have been
		 * generated for each table draw, but before it is rendered on screen. This
		 * function might be used for setting the row class name etc.
		 *  @type function
		 *  @param {node} row "TR" element for the current row
		 *  @param {array} data Raw data array for this row
		 *  @param {int} displayIndex The display index for the current table draw
		 *  @param {int} displayIndexFull The index of the data in the full list of
		 *    rows (after filtering)
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.rowCallback
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "rowCallback": function( row, data, displayIndex, displayIndexFull ) {
		 *          // Bold the grade for all 'A' grade browsers
		 *          if ( data[4] == "A" ) {
		 *            $('td:eq(4)', row).html( '<b>A</b>' );
		 *          }
		 *        }
		 *      } );
		 *    } );
		 */
		"fnRowCallback": null,
	
	
		/**
		 * __Deprecated__ The functionality provided by this parameter has now been
		 * superseded by that provided through `ajax`, which should be used instead.
		 *
		 * This parameter allows you to override the default function which obtains
		 * the data from the server so something more suitable for your application.
		 * For example you could use POST data, or pull information from a Gears or
		 * AIR database.
		 *  @type function
		 *  @member
		 *  @param {string} source HTTP source to obtain the data from (`ajax`)
		 *  @param {array} data A key/value pair object containing the data to send
		 *    to the server
		 *  @param {function} callback to be called on completion of the data get
		 *    process that will draw the data on the page.
		 *  @param {object} settings DataTables settings object
		 *
		 *  @dtopt Callbacks
		 *  @dtopt Server-side
		 *  @name DataTable.defaults.serverData
		 *
		 *  @deprecated 1.10. Please use `ajax` for this functionality now.
		 */
		"fnServerData": null,
	
	
		/**
		 * __Deprecated__ The functionality provided by this parameter has now been
		 * superseded by that provided through `ajax`, which should be used instead.
		 *
		 *  It is often useful to send extra data to the server when making an Ajax
		 * request - for example custom filtering information, and this callback
		 * function makes it trivial to send extra information to the server. The
		 * passed in parameter is the data set that has been constructed by
		 * DataTables, and you can add to this or modify it as you require.
		 *  @type function
		 *  @param {array} data Data array (array of objects which are name/value
		 *    pairs) that has been constructed by DataTables and will be sent to the
		 *    server. In the case of Ajax sourced data with server-side processing
		 *    this will be an empty array, for server-side processing there will be a
		 *    significant number of parameters!
		 *  @returns {undefined} Ensure that you modify the data array passed in,
		 *    as this is passed by reference.
		 *
		 *  @dtopt Callbacks
		 *  @dtopt Server-side
		 *  @name DataTable.defaults.serverParams
		 *
		 *  @deprecated 1.10. Please use `ajax` for this functionality now.
		 */
		"fnServerParams": null,
	
	
		/**
		 * Load the table state. With this function you can define from where, and how, the
		 * state of a table is loaded. By default DataTables will load from `localStorage`
		 * but you might wish to use a server-side database or cookies.
		 *  @type function
		 *  @member
		 *  @param {object} settings DataTables settings object
		 *  @param {object} callback Callback that can be executed when done. It
		 *    should be passed the loaded state object.
		 *  @return {object} The DataTables state object to be loaded
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.stateLoadCallback
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "stateSave": true,
		 *        "stateLoadCallback": function (settings, callback) {
		 *          $.ajax( {
		 *            "url": "/state_load",
		 *            "dataType": "json",
		 *            "success": function (json) {
		 *              callback( json );
		 *            }
		 *          } );
		 *        }
		 *      } );
		 *    } );
		 */
		"fnStateLoadCallback": function ( settings ) {
			try {
				return JSON.parse(
					(settings.iStateDuration === -1 ? sessionStorage : localStorage).getItem(
						'DataTables_'+settings.sInstance+'_'+location.pathname
					)
				);
			} catch (e) {
				return {};
			}
		},
	
	
		/**
		 * Callback which allows modification of the saved state prior to loading that state.
		 * This callback is called when the table is loading state from the stored data, but
		 * prior to the settings object being modified by the saved state. Note that for
		 * plug-in authors, you should use the `stateLoadParams` event to load parameters for
		 * a plug-in.
		 *  @type function
		 *  @param {object} settings DataTables settings object
		 *  @param {object} data The state object that is to be loaded
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.stateLoadParams
		 *
		 *  @example
		 *    // Remove a saved filter, so filtering is never loaded
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "stateSave": true,
		 *        "stateLoadParams": function (settings, data) {
		 *          data.oSearch.sSearch = "";
		 *        }
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Disallow state loading by returning false
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "stateSave": true,
		 *        "stateLoadParams": function (settings, data) {
		 *          return false;
		 *        }
		 *      } );
		 *    } );
		 */
		"fnStateLoadParams": null,
	
	
		/**
		 * Callback that is called when the state has been loaded from the state saving method
		 * and the DataTables settings object has been modified as a result of the loaded state.
		 *  @type function
		 *  @param {object} settings DataTables settings object
		 *  @param {object} data The state object that was loaded
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.stateLoaded
		 *
		 *  @example
		 *    // Show an alert with the filtering value that was saved
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "stateSave": true,
		 *        "stateLoaded": function (settings, data) {
		 *          alert( 'Saved filter was: '+data.oSearch.sSearch );
		 *        }
		 *      } );
		 *    } );
		 */
		"fnStateLoaded": null,
	
	
		/**
		 * Save the table state. This function allows you to define where and how the state
		 * information for the table is stored By default DataTables will use `localStorage`
		 * but you might wish to use a server-side database or cookies.
		 *  @type function
		 *  @member
		 *  @param {object} settings DataTables settings object
		 *  @param {object} data The state object to be saved
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.stateSaveCallback
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "stateSave": true,
		 *        "stateSaveCallback": function (settings, data) {
		 *          // Send an Ajax request to the server with the state object
		 *          $.ajax( {
		 *            "url": "/state_save",
		 *            "data": data,
		 *            "dataType": "json",
		 *            "method": "POST"
		 *            "success": function () {}
		 *          } );
		 *        }
		 *      } );
		 *    } );
		 */
		"fnStateSaveCallback": function ( settings, data ) {
			try {
				(settings.iStateDuration === -1 ? sessionStorage : localStorage).setItem(
					'DataTables_'+settings.sInstance+'_'+location.pathname,
					JSON.stringify( data )
				);
			} catch (e) {}
		},
	
	
		/**
		 * Callback which allows modification of the state to be saved. Called when the table
		 * has changed state a new state save is required. This method allows modification of
		 * the state saving object prior to actually doing the save, including addition or
		 * other state properties or modification. Note that for plug-in authors, you should
		 * use the `stateSaveParams` event to save parameters for a plug-in.
		 *  @type function
		 *  @param {object} settings DataTables settings object
		 *  @param {object} data The state object to be saved
		 *
		 *  @dtopt Callbacks
		 *  @name DataTable.defaults.stateSaveParams
		 *
		 *  @example
		 *    // Remove a saved filter, so filtering is never saved
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "stateSave": true,
		 *        "stateSaveParams": function (settings, data) {
		 *          data.oSearch.sSearch = "";
		 *        }
		 *      } );
		 *    } );
		 */
		"fnStateSaveParams": null,
	
	
		/**
		 * Duration for which the saved state information is considered valid. After this period
		 * has elapsed the state will be returned to the default.
		 * Value is given in seconds.
		 *  @type int
		 *  @default 7200 <i>(2 hours)</i>
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.stateDuration
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "stateDuration": 60*60*24; // 1 day
		 *      } );
		 *    } )
		 */
		"iStateDuration": 7200,
	
	
		/**
		 * When enabled DataTables will not make a request to the server for the first
		 * page draw - rather it will use the data already on the page (no sorting etc
		 * will be applied to it), thus saving on an XHR at load time. `deferLoading`
		 * is used to indicate that deferred loading is required, but it is also used
		 * to tell DataTables how many records there are in the full table (allowing
		 * the information element and pagination to be displayed correctly). In the case
		 * where a filtering is applied to the table on initial load, this can be
		 * indicated by giving the parameter as an array, where the first element is
		 * the number of records available after filtering and the second element is the
		 * number of records without filtering (allowing the table information element
		 * to be shown correctly).
		 *  @type int | array
		 *  @default null
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.deferLoading
		 *
		 *  @example
		 *    // 57 records available in the table, no filtering applied
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "serverSide": true,
		 *        "ajax": "scripts/server_processing.php",
		 *        "deferLoading": 57
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // 57 records after filtering, 100 without filtering (an initial filter applied)
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "serverSide": true,
		 *        "ajax": "scripts/server_processing.php",
		 *        "deferLoading": [ 57, 100 ],
		 *        "search": {
		 *          "search": "my_filter"
		 *        }
		 *      } );
		 *    } );
		 */
		"iDeferLoading": null,
	
	
		/**
		 * Number of rows to display on a single page when using pagination. If
		 * feature enabled (`lengthChange`) then the end user will be able to override
		 * this to a custom setting using a pop-up menu.
		 *  @type int
		 *  @default 10
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.pageLength
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "pageLength": 50
		 *      } );
		 *    } )
		 */
		"iDisplayLength": 10,
	
	
		/**
		 * Define the starting point for data display when using DataTables with
		 * pagination. Note that this parameter is the number of records, rather than
		 * the page number, so if you have 10 records per page and want to start on
		 * the third page, it should be "20".
		 *  @type int
		 *  @default 0
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.displayStart
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "displayStart": 20
		 *      } );
		 *    } )
		 */
		"iDisplayStart": 0,
	
	
		/**
		 * By default DataTables allows keyboard navigation of the table (sorting, paging,
		 * and filtering) by adding a `tabindex` attribute to the required elements. This
		 * allows you to tab through the controls and press the enter key to activate them.
		 * The tabindex is default 0, meaning that the tab follows the flow of the document.
		 * You can overrule this using this parameter if you wish. Use a value of -1 to
		 * disable built-in keyboard navigation.
		 *  @type int
		 *  @default 0
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.tabIndex
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "tabIndex": 1
		 *      } );
		 *    } );
		 */
		"iTabIndex": 0,
	
	
		/**
		 * Classes that DataTables assigns to the various components and features
		 * that it adds to the HTML table. This allows classes to be configured
		 * during initialisation in addition to through the static
		 * {@link DataTable.ext.oStdClasses} object).
		 *  @namespace
		 *  @name DataTable.defaults.classes
		 */
		"oClasses": {},
	
	
		/**
		 * All strings that DataTables uses in the user interface that it creates
		 * are defined in this object, allowing you to modified them individually or
		 * completely replace them all as required.
		 *  @namespace
		 *  @name DataTable.defaults.language
		 */
		"oLanguage": {
			/**
			 * Strings that are used for WAI-ARIA labels and controls only (these are not
			 * actually visible on the page, but will be read by screenreaders, and thus
			 * must be internationalised as well).
			 *  @namespace
			 *  @name DataTable.defaults.language.aria
			 */
			"oAria": {
				/**
				 * ARIA label that is added to the table headers when the column may be
				 * sorted ascending by activing the column (click or return when focused).
				 * Note that the column header is prefixed to this string.
				 *  @type string
				 *  @default : activate to sort column ascending
				 *
				 *  @dtopt Language
				 *  @name DataTable.defaults.language.aria.sortAscending
				 *
				 *  @example
				 *    $(document).ready( function() {
				 *      $('#example').dataTable( {
				 *        "language": {
				 *          "aria": {
				 *            "sortAscending": " - click/return to sort ascending"
				 *          }
				 *        }
				 *      } );
				 *    } );
				 */
				"sSortAscending": ": activate to sort column ascending",
	
				/**
				 * ARIA label that is added to the table headers when the column may be
				 * sorted descending by activing the column (click or return when focused).
				 * Note that the column header is prefixed to this string.
				 *  @type string
				 *  @default : activate to sort column ascending
				 *
				 *  @dtopt Language
				 *  @name DataTable.defaults.language.aria.sortDescending
				 *
				 *  @example
				 *    $(document).ready( function() {
				 *      $('#example').dataTable( {
				 *        "language": {
				 *          "aria": {
				 *            "sortDescending": " - click/return to sort descending"
				 *          }
				 *        }
				 *      } );
				 *    } );
				 */
				"sSortDescending": ": activate to sort column descending"
			},
	
			/**
			 * Pagination string used by DataTables for the built-in pagination
			 * control types.
			 *  @namespace
			 *  @name DataTable.defaults.language.paginate
			 */
			"oPaginate": {
				/**
				 * Text to use when using the 'full_numbers' type of pagination for the
				 * button to take the user to the first page.
				 *  @type string
				 *  @default First
				 *
				 *  @dtopt Language
				 *  @name DataTable.defaults.language.paginate.first
				 *
				 *  @example
				 *    $(document).ready( function() {
				 *      $('#example').dataTable( {
				 *        "language": {
				 *          "paginate": {
				 *            "first": "First page"
				 *          }
				 *        }
				 *      } );
				 *    } );
				 */
				"sFirst": "First",
	
	
				/**
				 * Text to use when using the 'full_numbers' type of pagination for the
				 * button to take the user to the last page.
				 *  @type string
				 *  @default Last
				 *
				 *  @dtopt Language
				 *  @name DataTable.defaults.language.paginate.last
				 *
				 *  @example
				 *    $(document).ready( function() {
				 *      $('#example').dataTable( {
				 *        "language": {
				 *          "paginate": {
				 *            "last": "Last page"
				 *          }
				 *        }
				 *      } );
				 *    } );
				 */
				"sLast": "Last",
	
	
				/**
				 * Text to use for the 'next' pagination button (to take the user to the
				 * next page).
				 *  @type string
				 *  @default Next
				 *
				 *  @dtopt Language
				 *  @name DataTable.defaults.language.paginate.next
				 *
				 *  @example
				 *    $(document).ready( function() {
				 *      $('#example').dataTable( {
				 *        "language": {
				 *          "paginate": {
				 *            "next": "Next page"
				 *          }
				 *        }
				 *      } );
				 *    } );
				 */
				"sNext": "Next",
	
	
				/**
				 * Text to use for the 'previous' pagination button (to take the user to
				 * the previous page).
				 *  @type string
				 *  @default Previous
				 *
				 *  @dtopt Language
				 *  @name DataTable.defaults.language.paginate.previous
				 *
				 *  @example
				 *    $(document).ready( function() {
				 *      $('#example').dataTable( {
				 *        "language": {
				 *          "paginate": {
				 *            "previous": "Previous page"
				 *          }
				 *        }
				 *      } );
				 *    } );
				 */
				"sPrevious": "Previous"
			},
	
			/**
			 * This string is shown in preference to `zeroRecords` when the table is
			 * empty of data (regardless of filtering). Note that this is an optional
			 * parameter - if it is not given, the value of `zeroRecords` will be used
			 * instead (either the default or given value).
			 *  @type string
			 *  @default No data available in table
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.emptyTable
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "emptyTable": "No data available in table"
			 *        }
			 *      } );
			 *    } );
			 */
			"sEmptyTable": "No data available in table",
	
	
			/**
			 * This string gives information to the end user about the information
			 * that is current on display on the page. The following tokens can be
			 * used in the string and will be dynamically replaced as the table
			 * display updates. This tokens can be placed anywhere in the string, or
			 * removed as needed by the language requires:
			 *
			 * * `\_START\_` - Display index of the first record on the current page
			 * * `\_END\_` - Display index of the last record on the current page
			 * * `\_TOTAL\_` - Number of records in the table after filtering
			 * * `\_MAX\_` - Number of records in the table without filtering
			 * * `\_PAGE\_` - Current page number
			 * * `\_PAGES\_` - Total number of pages of data in the table
			 *
			 *  @type string
			 *  @default Showing _START_ to _END_ of _TOTAL_ entries
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.info
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "info": "Showing page _PAGE_ of _PAGES_"
			 *        }
			 *      } );
			 *    } );
			 */
			"sInfo": "Showing _START_ to _END_ of _TOTAL_ entries",
	
	
			/**
			 * Display information string for when the table is empty. Typically the
			 * format of this string should match `info`.
			 *  @type string
			 *  @default Showing 0 to 0 of 0 entries
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.infoEmpty
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "infoEmpty": "No entries to show"
			 *        }
			 *      } );
			 *    } );
			 */
			"sInfoEmpty": "Showing 0 to 0 of 0 entries",
	
	
			/**
			 * When a user filters the information in a table, this string is appended
			 * to the information (`info`) to give an idea of how strong the filtering
			 * is. The variable _MAX_ is dynamically updated.
			 *  @type string
			 *  @default (filtered from _MAX_ total entries)
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.infoFiltered
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "infoFiltered": " - filtering from _MAX_ records"
			 *        }
			 *      } );
			 *    } );
			 */
			"sInfoFiltered": "(filtered from _MAX_ total entries)",
	
	
			/**
			 * If can be useful to append extra information to the info string at times,
			 * and this variable does exactly that. This information will be appended to
			 * the `info` (`infoEmpty` and `infoFiltered` in whatever combination they are
			 * being used) at all times.
			 *  @type string
			 *  @default <i>Empty string</i>
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.infoPostFix
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "infoPostFix": "All records shown are derived from real information."
			 *        }
			 *      } );
			 *    } );
			 */
			"sInfoPostFix": "",
	
	
			/**
			 * This decimal place operator is a little different from the other
			 * language options since DataTables doesn't output floating point
			 * numbers, so it won't ever use this for display of a number. Rather,
			 * what this parameter does is modify the sort methods of the table so
			 * that numbers which are in a format which has a character other than
			 * a period (`.`) as a decimal place will be sorted numerically.
			 *
			 * Note that numbers with different decimal places cannot be shown in
			 * the same table and still be sortable, the table must be consistent.
			 * However, multiple different tables on the page can use different
			 * decimal place characters.
			 *  @type string
			 *  @default 
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.decimal
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "decimal": ","
			 *          "thousands": "."
			 *        }
			 *      } );
			 *    } );
			 */
			"sDecimal": "",
	
	
			/**
			 * DataTables has a build in number formatter (`formatNumber`) which is
			 * used to format large numbers that are used in the table information.
			 * By default a comma is used, but this can be trivially changed to any
			 * character you wish with this parameter.
			 *  @type string
			 *  @default ,
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.thousands
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "thousands": "'"
			 *        }
			 *      } );
			 *    } );
			 */
			"sThousands": ",",
	
	
			/**
			 * Detail the action that will be taken when the drop down menu for the
			 * pagination length option is changed. The '_MENU_' variable is replaced
			 * with a default select list of 10, 25, 50 and 100, and can be replaced
			 * with a custom select box if required.
			 *  @type string
			 *  @default Show _MENU_ entries
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.lengthMenu
			 *
			 *  @example
			 *    // Language change only
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "lengthMenu": "Display _MENU_ records"
			 *        }
			 *      } );
			 *    } );
			 *
			 *  @example
			 *    // Language and options change
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "lengthMenu": 'Display <select>'+
			 *            '<option value="10">10</option>'+
			 *            '<option value="20">20</option>'+
			 *            '<option value="30">30</option>'+
			 *            '<option value="40">40</option>'+
			 *            '<option value="50">50</option>'+
			 *            '<option value="-1">All</option>'+
			 *            '</select> records'
			 *        }
			 *      } );
			 *    } );
			 */
			"sLengthMenu": "Show _MENU_ entries",
	
	
			/**
			 * When using Ajax sourced data and during the first draw when DataTables is
			 * gathering the data, this message is shown in an empty row in the table to
			 * indicate to the end user the the data is being loaded. Note that this
			 * parameter is not used when loading data by server-side processing, just
			 * Ajax sourced data with client-side processing.
			 *  @type string
			 *  @default Loading...
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.loadingRecords
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "loadingRecords": "Please wait - loading..."
			 *        }
			 *      } );
			 *    } );
			 */
			"sLoadingRecords": "Loading...",
	
	
			/**
			 * Text which is displayed when the table is processing a user action
			 * (usually a sort command or similar).
			 *  @type string
			 *  @default Processing...
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.processing
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "processing": "DataTables is currently busy"
			 *        }
			 *      } );
			 *    } );
			 */
			"sProcessing": "Processing...",
	
	
			/**
			 * Details the actions that will be taken when the user types into the
			 * filtering input text box. The variable "_INPUT_", if used in the string,
			 * is replaced with the HTML text box for the filtering input allowing
			 * control over where it appears in the string. If "_INPUT_" is not given
			 * then the input box is appended to the string automatically.
			 *  @type string
			 *  @default Search:
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.search
			 *
			 *  @example
			 *    // Input text box will be appended at the end automatically
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "search": "Filter records:"
			 *        }
			 *      } );
			 *    } );
			 *
			 *  @example
			 *    // Specify where the filter should appear
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "search": "Apply filter _INPUT_ to table"
			 *        }
			 *      } );
			 *    } );
			 */
			"sSearch": "Search:",
	
	
			/**
			 * Assign a `placeholder` attribute to the search `input` element
			 *  @type string
			 *  @default 
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.searchPlaceholder
			 */
			"sSearchPlaceholder": "",
	
	
			/**
			 * All of the language information can be stored in a file on the
			 * server-side, which DataTables will look up if this parameter is passed.
			 * It must store the URL of the language file, which is in a JSON format,
			 * and the object has the same properties as the oLanguage object in the
			 * initialiser object (i.e. the above parameters). Please refer to one of
			 * the example language files to see how this works in action.
			 *  @type string
			 *  @default <i>Empty string - i.e. disabled</i>
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.url
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "url": "http://www.sprymedia.co.uk/dataTables/lang.txt"
			 *        }
			 *      } );
			 *    } );
			 */
			"sUrl": "",
	
	
			/**
			 * Text shown inside the table records when the is no information to be
			 * displayed after filtering. `emptyTable` is shown when there is simply no
			 * information in the table at all (regardless of filtering).
			 *  @type string
			 *  @default No matching records found
			 *
			 *  @dtopt Language
			 *  @name DataTable.defaults.language.zeroRecords
			 *
			 *  @example
			 *    $(document).ready( function() {
			 *      $('#example').dataTable( {
			 *        "language": {
			 *          "zeroRecords": "No records to display"
			 *        }
			 *      } );
			 *    } );
			 */
			"sZeroRecords": "No matching records found"
		},
	
	
		/**
		 * This parameter allows you to have define the global filtering state at
		 * initialisation time. As an object the `search` parameter must be
		 * defined, but all other parameters are optional. When `regex` is true,
		 * the search string will be treated as a regular expression, when false
		 * (default) it will be treated as a straight string. When `smart`
		 * DataTables will use it's smart filtering methods (to word match at
		 * any point in the data), when false this will not be done.
		 *  @namespace
		 *  @extends DataTable.models.oSearch
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.search
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "search": {"search": "Initial search"}
		 *      } );
		 *    } )
		 */
		"oSearch": $.extend( {}, DataTable.models.oSearch ),
	
	
		/**
		 * __Deprecated__ The functionality provided by this parameter has now been
		 * superseded by that provided through `ajax`, which should be used instead.
		 *
		 * By default DataTables will look for the property `data` (or `aaData` for
		 * compatibility with DataTables 1.9-) when obtaining data from an Ajax
		 * source or for server-side processing - this parameter allows that
		 * property to be changed. You can use Javascript dotted object notation to
		 * get a data source for multiple levels of nesting.
		 *  @type string
		 *  @default data
		 *
		 *  @dtopt Options
		 *  @dtopt Server-side
		 *  @name DataTable.defaults.ajaxDataProp
		 *
		 *  @deprecated 1.10. Please use `ajax` for this functionality now.
		 */
		"sAjaxDataProp": "data",
	
	
		/**
		 * __Deprecated__ The functionality provided by this parameter has now been
		 * superseded by that provided through `ajax`, which should be used instead.
		 *
		 * You can instruct DataTables to load data from an external
		 * source using this parameter (use aData if you want to pass data in you
		 * already have). Simply provide a url a JSON object can be obtained from.
		 *  @type string
		 *  @default null
		 *
		 *  @dtopt Options
		 *  @dtopt Server-side
		 *  @name DataTable.defaults.ajaxSource
		 *
		 *  @deprecated 1.10. Please use `ajax` for this functionality now.
		 */
		"sAjaxSource": null,
	
	
		/**
		 * This initialisation variable allows you to specify exactly where in the
		 * DOM you want DataTables to inject the various controls it adds to the page
		 * (for example you might want the pagination controls at the top of the
		 * table). DIV elements (with or without a custom class) can also be added to
		 * aid styling. The follow syntax is used:
		 *   <ul>
		 *     <li>The following options are allowed:
		 *       <ul>
		 *         <li>'l' - Length changing</li>
		 *         <li>'f' - Filtering input</li>
		 *         <li>'t' - The table!</li>
		 *         <li>'i' - Information</li>
		 *         <li>'p' - Pagination</li>
		 *         <li>'r' - pRocessing</li>
		 *       </ul>
		 *     </li>
		 *     <li>The following constants are allowed:
		 *       <ul>
		 *         <li>'H' - jQueryUI theme "header" classes ('fg-toolbar ui-widget-header ui-corner-tl ui-corner-tr ui-helper-clearfix')</li>
		 *         <li>'F' - jQueryUI theme "footer" classes ('fg-toolbar ui-widget-header ui-corner-bl ui-corner-br ui-helper-clearfix')</li>
		 *       </ul>
		 *     </li>
		 *     <li>The following syntax is expected:
		 *       <ul>
		 *         <li>'&lt;' and '&gt;' - div elements</li>
		 *         <li>'&lt;"class" and '&gt;' - div with a class</li>
		 *         <li>'&lt;"#id" and '&gt;' - div with an ID</li>
		 *       </ul>
		 *     </li>
		 *     <li>Examples:
		 *       <ul>
		 *         <li>'&lt;"wrapper"flipt&gt;'</li>
		 *         <li>'&lt;lf&lt;t&gt;ip&gt;'</li>
		 *       </ul>
		 *     </li>
		 *   </ul>
		 *  @type string
		 *  @default lfrtip <i>(when `jQueryUI` is false)</i> <b>or</b>
		 *    <"H"lfr>t<"F"ip> <i>(when `jQueryUI` is true)</i>
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.dom
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "dom": '&lt;"top"i&gt;rt&lt;"bottom"flp&gt;&lt;"clear"&gt;'
		 *      } );
		 *    } );
		 */
		"sDom": "lfrtip",
	
	
		/**
		 * Search delay option. This will throttle full table searches that use the
		 * DataTables provided search input element (it does not effect calls to
		 * `dt-api search()`, providing a delay before the search is made.
		 *  @type integer
		 *  @default 0
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.searchDelay
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "searchDelay": 200
		 *      } );
		 *    } )
		 */
		"searchDelay": null,
	
	
		/**
		 * DataTables features six different built-in options for the buttons to
		 * display for pagination control:
		 *
		 * * `numbers` - Page number buttons only
		 * * `simple` - 'Previous' and 'Next' buttons only
		 * * 'simple_numbers` - 'Previous' and 'Next' buttons, plus page numbers
		 * * `full` - 'First', 'Previous', 'Next' and 'Last' buttons
		 * * `full_numbers` - 'First', 'Previous', 'Next' and 'Last' buttons, plus page numbers
		 * * `first_last_numbers` - 'First' and 'Last' buttons, plus page numbers
		 *  
		 * Further methods can be added using {@link DataTable.ext.oPagination}.
		 *  @type string
		 *  @default simple_numbers
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.pagingType
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "pagingType": "full_numbers"
		 *      } );
		 *    } )
		 */
		"sPaginationType": "simple_numbers",
	
	
		/**
		 * Enable horizontal scrolling. When a table is too wide to fit into a
		 * certain layout, or you have a large number of columns in the table, you
		 * can enable x-scrolling to show the table in a viewport, which can be
		 * scrolled. This property can be `true` which will allow the table to
		 * scroll horizontally when needed, or any CSS unit, or a number (in which
		 * case it will be treated as a pixel measurement). Setting as simply `true`
		 * is recommended.
		 *  @type boolean|string
		 *  @default <i>blank string - i.e. disabled</i>
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.scrollX
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "scrollX": true,
		 *        "scrollCollapse": true
		 *      } );
		 *    } );
		 */
		"sScrollX": "",
	
	
		/**
		 * This property can be used to force a DataTable to use more width than it
		 * might otherwise do when x-scrolling is enabled. For example if you have a
		 * table which requires to be well spaced, this parameter is useful for
		 * "over-sizing" the table, and thus forcing scrolling. This property can by
		 * any CSS unit, or a number (in which case it will be treated as a pixel
		 * measurement).
		 *  @type string
		 *  @default <i>blank string - i.e. disabled</i>
		 *
		 *  @dtopt Options
		 *  @name DataTable.defaults.scrollXInner
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "scrollX": "100%",
		 *        "scrollXInner": "110%"
		 *      } );
		 *    } );
		 */
		"sScrollXInner": "",
	
	
		/**
		 * Enable vertical scrolling. Vertical scrolling will constrain the DataTable
		 * to the given height, and enable scrolling for any data which overflows the
		 * current viewport. This can be used as an alternative to paging to display
		 * a lot of data in a small area (although paging and scrolling can both be
		 * enabled at the same time). This property can be any CSS unit, or a number
		 * (in which case it will be treated as a pixel measurement).
		 *  @type string
		 *  @default <i>blank string - i.e. disabled</i>
		 *
		 *  @dtopt Features
		 *  @name DataTable.defaults.scrollY
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "scrollY": "200px",
		 *        "paginate": false
		 *      } );
		 *    } );
		 */
		"sScrollY": "",
	
	
		/**
		 * __Deprecated__ The functionality provided by this parameter has now been
		 * superseded by that provided through `ajax`, which should be used instead.
		 *
		 * Set the HTTP method that is used to make the Ajax call for server-side
		 * processing or Ajax sourced data.
		 *  @type string
		 *  @default GET
		 *
		 *  @dtopt Options
		 *  @dtopt Server-side
		 *  @name DataTable.defaults.serverMethod
		 *
		 *  @deprecated 1.10. Please use `ajax` for this functionality now.
		 */
		"sServerMethod": "GET",
	
	
		/**
		 * DataTables makes use of renderers when displaying HTML elements for
		 * a table. These renderers can be added or modified by plug-ins to
		 * generate suitable mark-up for a site. For example the Bootstrap
		 * integration plug-in for DataTables uses a paging button renderer to
		 * display pagination buttons in the mark-up required by Bootstrap.
		 *
		 * For further information about the renderers available see
		 * DataTable.ext.renderer
		 *  @type string|object
		 *  @default null
		 *
		 *  @name DataTable.defaults.renderer
		 *
		 */
		"renderer": null,
	
	
		/**
		 * Set the data property name that DataTables should use to get a row's id
		 * to set as the `id` property in the node.
		 *  @type string
		 *  @default DT_RowId
		 *
		 *  @name DataTable.defaults.rowId
		 */
		"rowId": "DT_RowId"
	};
	
	_fnHungarianMap( DataTable.defaults );
	
	
	
	/*
	 * Developer note - See note in model.defaults.js about the use of Hungarian
	 * notation and camel case.
	 */
	
	/**
	 * Column options that can be given to DataTables at initialisation time.
	 *  @namespace
	 */
	DataTable.defaults.column = {
		/**
		 * Define which column(s) an order will occur on for this column. This
		 * allows a column's ordering to take multiple columns into account when
		 * doing a sort or use the data from a different column. For example first
		 * name / last name columns make sense to do a multi-column sort over the
		 * two columns.
		 *  @type array|int
		 *  @default null <i>Takes the value of the column index automatically</i>
		 *
		 *  @name DataTable.defaults.column.orderData
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "orderData": [ 0, 1 ], "targets": [ 0 ] },
		 *          { "orderData": [ 1, 0 ], "targets": [ 1 ] },
		 *          { "orderData": 2, "targets": [ 2 ] }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          { "orderData": [ 0, 1 ] },
		 *          { "orderData": [ 1, 0 ] },
		 *          { "orderData": 2 },
		 *          null,
		 *          null
		 *        ]
		 *      } );
		 *    } );
		 */
		"aDataSort": null,
		"iDataSort": -1,
	
	
		/**
		 * You can control the default ordering direction, and even alter the
		 * behaviour of the sort handler (i.e. only allow ascending ordering etc)
		 * using this parameter.
		 *  @type array
		 *  @default [ 'asc', 'desc' ]
		 *
		 *  @name DataTable.defaults.column.orderSequence
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "orderSequence": [ "asc" ], "targets": [ 1 ] },
		 *          { "orderSequence": [ "desc", "asc", "asc" ], "targets": [ 2 ] },
		 *          { "orderSequence": [ "desc" ], "targets": [ 3 ] }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          null,
		 *          { "orderSequence": [ "asc" ] },
		 *          { "orderSequence": [ "desc", "asc", "asc" ] },
		 *          { "orderSequence": [ "desc" ] },
		 *          null
		 *        ]
		 *      } );
		 *    } );
		 */
		"asSorting": [ 'asc', 'desc' ],
	
	
		/**
		 * Enable or disable filtering on the data in this column.
		 *  @type boolean
		 *  @default true
		 *
		 *  @name DataTable.defaults.column.searchable
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "searchable": false, "targets": [ 0 ] }
		 *        ] } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          { "searchable": false },
		 *          null,
		 *          null,
		 *          null,
		 *          null
		 *        ] } );
		 *    } );
		 */
		"bSearchable": true,
	
	
		/**
		 * Enable or disable ordering on this column.
		 *  @type boolean
		 *  @default true
		 *
		 *  @name DataTable.defaults.column.orderable
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "orderable": false, "targets": [ 0 ] }
		 *        ] } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          { "orderable": false },
		 *          null,
		 *          null,
		 *          null,
		 *          null
		 *        ] } );
		 *    } );
		 */
		"bSortable": true,
	
	
		/**
		 * Enable or disable the display of this column.
		 *  @type boolean
		 *  @default true
		 *
		 *  @name DataTable.defaults.column.visible
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "visible": false, "targets": [ 0 ] }
		 *        ] } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          { "visible": false },
		 *          null,
		 *          null,
		 *          null,
		 *          null
		 *        ] } );
		 *    } );
		 */
		"bVisible": true,
	
	
		/**
		 * Developer definable function that is called whenever a cell is created (Ajax source,
		 * etc) or processed for input (DOM source). This can be used as a compliment to mRender
		 * allowing you to modify the DOM element (add background colour for example) when the
		 * element is available.
		 *  @type function
		 *  @param {element} td The TD node that has been created
		 *  @param {*} cellData The Data for the cell
		 *  @param {array|object} rowData The data for the whole row
		 *  @param {int} row The row index for the aoData data store
		 *  @param {int} col The column index for aoColumns
		 *
		 *  @name DataTable.defaults.column.createdCell
		 *  @dtopt Columns
		 *
		 *  @example
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [ {
		 *          "targets": [3],
		 *          "createdCell": function (td, cellData, rowData, row, col) {
		 *            if ( cellData == "1.7" ) {
		 *              $(td).css('color', 'blue')
		 *            }
		 *          }
		 *        } ]
		 *      });
		 *    } );
		 */
		"fnCreatedCell": null,
	
	
		/**
		 * This parameter has been replaced by `data` in DataTables to ensure naming
		 * consistency. `dataProp` can still be used, as there is backwards
		 * compatibility in DataTables for this option, but it is strongly
		 * recommended that you use `data` in preference to `dataProp`.
		 *  @name DataTable.defaults.column.dataProp
		 */
	
	
		/**
		 * This property can be used to read data from any data source property,
		 * including deeply nested objects / properties. `data` can be given in a
		 * number of different ways which effect its behaviour:
		 *
		 * * `integer` - treated as an array index for the data source. This is the
		 *   default that DataTables uses (incrementally increased for each column).
		 * * `string` - read an object property from the data source. There are
		 *   three 'special' options that can be used in the string to alter how
		 *   DataTables reads the data from the source object:
		 *    * `.` - Dotted Javascript notation. Just as you use a `.` in
		 *      Javascript to read from nested objects, so to can the options
		 *      specified in `data`. For example: `browser.version` or
		 *      `browser.name`. If your object parameter name contains a period, use
		 *      `\\` to escape it - i.e. `first\\.name`.
		 *    * `[]` - Array notation. DataTables can automatically combine data
		 *      from and array source, joining the data with the characters provided
		 *      between the two brackets. For example: `name[, ]` would provide a
		 *      comma-space separated list from the source array. If no characters
		 *      are provided between the brackets, the original array source is
		 *      returned.
		 *    * `()` - Function notation. Adding `()` to the end of a parameter will
		 *      execute a function of the name given. For example: `browser()` for a
		 *      simple function on the data source, `browser.version()` for a
		 *      function in a nested property or even `browser().version` to get an
		 *      object property if the function called returns an object. Note that
		 *      function notation is recommended for use in `render` rather than
		 *      `data` as it is much simpler to use as a renderer.
		 * * `null` - use the original data source for the row rather than plucking
		 *   data directly from it. This action has effects on two other
		 *   initialisation options:
		 *    * `defaultContent` - When null is given as the `data` option and
		 *      `defaultContent` is specified for the column, the value defined by
		 *      `defaultContent` will be used for the cell.
		 *    * `render` - When null is used for the `data` option and the `render`
		 *      option is specified for the column, the whole data source for the
		 *      row is used for the renderer.
		 * * `function` - the function given will be executed whenever DataTables
		 *   needs to set or get the data for a cell in the column. The function
		 *   takes three parameters:
		 *    * Parameters:
		 *      * `{array|object}` The data source for the row
		 *      * `{string}` The type call data requested - this will be 'set' when
		 *        setting data or 'filter', 'display', 'type', 'sort' or undefined
		 *        when gathering data. Note that when `undefined` is given for the
		 *        type DataTables expects to get the raw data for the object back<
		 *      * `{*}` Data to set when the second parameter is 'set'.
		 *    * Return:
		 *      * The return value from the function is not required when 'set' is
		 *        the type of call, but otherwise the return is what will be used
		 *        for the data requested.
		 *
		 * Note that `data` is a getter and setter option. If you just require
		 * formatting of data for output, you will likely want to use `render` which
		 * is simply a getter and thus simpler to use.
		 *
		 * Note that prior to DataTables 1.9.2 `data` was called `mDataProp`. The
		 * name change reflects the flexibility of this property and is consistent
		 * with the naming of mRender. If 'mDataProp' is given, then it will still
		 * be used by DataTables, as it automatically maps the old name to the new
		 * if required.
		 *
		 *  @type string|int|function|null
		 *  @default null <i>Use automatically calculated column index</i>
		 *
		 *  @name DataTable.defaults.column.data
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Read table data from objects
		 *    // JSON structure for each row:
		 *    //   {
		 *    //      "engine": {value},
		 *    //      "browser": {value},
		 *    //      "platform": {value},
		 *    //      "version": {value},
		 *    //      "grade": {value}
		 *    //   }
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "ajaxSource": "sources/objects.txt",
		 *        "columns": [
		 *          { "data": "engine" },
		 *          { "data": "browser" },
		 *          { "data": "platform" },
		 *          { "data": "version" },
		 *          { "data": "grade" }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Read information from deeply nested objects
		 *    // JSON structure for each row:
		 *    //   {
		 *    //      "engine": {value},
		 *    //      "browser": {value},
		 *    //      "platform": {
		 *    //         "inner": {value}
		 *    //      },
		 *    //      "details": [
		 *    //         {value}, {value}
		 *    //      ]
		 *    //   }
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "ajaxSource": "sources/deep.txt",
		 *        "columns": [
		 *          { "data": "engine" },
		 *          { "data": "browser" },
		 *          { "data": "platform.inner" },
		 *          { "data": "details.0" },
		 *          { "data": "details.1" }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using `data` as a function to provide different information for
		 *    // sorting, filtering and display. In this case, currency (price)
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [ {
		 *          "targets": [ 0 ],
		 *          "data": function ( source, type, val ) {
		 *            if (type === 'set') {
		 *              source.price = val;
		 *              // Store the computed dislay and filter values for efficiency
		 *              source.price_display = val=="" ? "" : "$"+numberFormat(val);
		 *              source.price_filter  = val=="" ? "" : "$"+numberFormat(val)+" "+val;
		 *              return;
		 *            }
		 *            else if (type === 'display') {
		 *              return source.price_display;
		 *            }
		 *            else if (type === 'filter') {
		 *              return source.price_filter;
		 *            }
		 *            // 'sort', 'type' and undefined all just use the integer
		 *            return source.price;
		 *          }
		 *        } ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using default content
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [ {
		 *          "targets": [ 0 ],
		 *          "data": null,
		 *          "defaultContent": "Click to edit"
		 *        } ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using array notation - outputting a list from an array
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [ {
		 *          "targets": [ 0 ],
		 *          "data": "name[, ]"
		 *        } ]
		 *      } );
		 *    } );
		 *
		 */
		"mData": null,
	
	
		/**
		 * This property is the rendering partner to `data` and it is suggested that
		 * when you want to manipulate data for display (including filtering,
		 * sorting etc) without altering the underlying data for the table, use this
		 * property. `render` can be considered to be the the read only companion to
		 * `data` which is read / write (then as such more complex). Like `data`
		 * this option can be given in a number of different ways to effect its
		 * behaviour:
		 *
		 * * `integer` - treated as an array index for the data source. This is the
		 *   default that DataTables uses (incrementally increased for each column).
		 * * `string` - read an object property from the data source. There are
		 *   three 'special' options that can be used in the string to alter how
		 *   DataTables reads the data from the source object:
		 *    * `.` - Dotted Javascript notation. Just as you use a `.` in
		 *      Javascript to read from nested objects, so to can the options
		 *      specified in `data`. For example: `browser.version` or
		 *      `browser.name`. If your object parameter name contains a period, use
		 *      `\\` to escape it - i.e. `first\\.name`.
		 *    * `[]` - Array notation. DataTables can automatically combine data
		 *      from and array source, joining the data with the characters provided
		 *      between the two brackets. For example: `name[, ]` would provide a
		 *      comma-space separated list from the source array. If no characters
		 *      are provided between the brackets, the original array source is
		 *      returned.
		 *    * `()` - Function notation. Adding `()` to the end of a parameter will
		 *      execute a function of the name given. For example: `browser()` for a
		 *      simple function on the data source, `browser.version()` for a
		 *      function in a nested property or even `browser().version` to get an
		 *      object property if the function called returns an object.
		 * * `object` - use different data for the different data types requested by
		 *   DataTables ('filter', 'display', 'type' or 'sort'). The property names
		 *   of the object is the data type the property refers to and the value can
		 *   defined using an integer, string or function using the same rules as
		 *   `render` normally does. Note that an `_` option _must_ be specified.
		 *   This is the default value to use if you haven't specified a value for
		 *   the data type requested by DataTables.
		 * * `function` - the function given will be executed whenever DataTables
		 *   needs to set or get the data for a cell in the column. The function
		 *   takes three parameters:
		 *    * Parameters:
		 *      * {array|object} The data source for the row (based on `data`)
		 *      * {string} The type call data requested - this will be 'filter',
		 *        'display', 'type' or 'sort'.
		 *      * {array|object} The full data source for the row (not based on
		 *        `data`)
		 *    * Return:
		 *      * The return value from the function is what will be used for the
		 *        data requested.
		 *
		 *  @type string|int|function|object|null
		 *  @default null Use the data source value.
		 *
		 *  @name DataTable.defaults.column.render
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Create a comma separated list from an array of objects
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "ajaxSource": "sources/deep.txt",
		 *        "columns": [
		 *          { "data": "engine" },
		 *          { "data": "browser" },
		 *          {
		 *            "data": "platform",
		 *            "render": "[, ].name"
		 *          }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Execute a function to obtain data
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [ {
		 *          "targets": [ 0 ],
		 *          "data": null, // Use the full data source object for the renderer's source
		 *          "render": "browserName()"
		 *        } ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // As an object, extracting different data for the different types
		 *    // This would be used with a data source such as:
		 *    //   { "phone": 5552368, "phone_filter": "5552368 555-2368", "phone_display": "555-2368" }
		 *    // Here the `phone` integer is used for sorting and type detection, while `phone_filter`
		 *    // (which has both forms) is used for filtering for if a user inputs either format, while
		 *    // the formatted phone number is the one that is shown in the table.
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [ {
		 *          "targets": [ 0 ],
		 *          "data": null, // Use the full data source object for the renderer's source
		 *          "render": {
		 *            "_": "phone",
		 *            "filter": "phone_filter",
		 *            "display": "phone_display"
		 *          }
		 *        } ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Use as a function to create a link from the data source
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [ {
		 *          "targets": [ 0 ],
		 *          "data": "download_link",
		 *          "render": function ( data, type, full ) {
		 *            return '<a href="'+data+'">Download</a>';
		 *          }
		 *        } ]
		 *      } );
		 *    } );
		 */
		"mRender": null,
	
	
		/**
		 * Change the cell type created for the column - either TD cells or TH cells. This
		 * can be useful as TH cells have semantic meaning in the table body, allowing them
		 * to act as a header for a row (you may wish to add scope='row' to the TH elements).
		 *  @type string
		 *  @default td
		 *
		 *  @name DataTable.defaults.column.cellType
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Make the first column use TH cells
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [ {
		 *          "targets": [ 0 ],
		 *          "cellType": "th"
		 *        } ]
		 *      } );
		 *    } );
		 */
		"sCellType": "td",
	
	
		/**
		 * Class to give to each cell in this column.
		 *  @type string
		 *  @default <i>Empty string</i>
		 *
		 *  @name DataTable.defaults.column.class
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "class": "my_class", "targets": [ 0 ] }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          { "class": "my_class" },
		 *          null,
		 *          null,
		 *          null,
		 *          null
		 *        ]
		 *      } );
		 *    } );
		 */
		"sClass": "",
	
		/**
		 * When DataTables calculates the column widths to assign to each column,
		 * it finds the longest string in each column and then constructs a
		 * temporary table and reads the widths from that. The problem with this
		 * is that "mmm" is much wider then "iiii", but the latter is a longer
		 * string - thus the calculation can go wrong (doing it properly and putting
		 * it into an DOM object and measuring that is horribly(!) slow). Thus as
		 * a "work around" we provide this option. It will append its value to the
		 * text that is found to be the longest string for the column - i.e. padding.
		 * Generally you shouldn't need this!
		 *  @type string
		 *  @default <i>Empty string<i>
		 *
		 *  @name DataTable.defaults.column.contentPadding
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          null,
		 *          null,
		 *          null,
		 *          {
		 *            "contentPadding": "mmm"
		 *          }
		 *        ]
		 *      } );
		 *    } );
		 */
		"sContentPadding": "",
	
	
		/**
		 * Allows a default value to be given for a column's data, and will be used
		 * whenever a null data source is encountered (this can be because `data`
		 * is set to null, or because the data source itself is null).
		 *  @type string
		 *  @default null
		 *
		 *  @name DataTable.defaults.column.defaultContent
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          {
		 *            "data": null,
		 *            "defaultContent": "Edit",
		 *            "targets": [ -1 ]
		 *          }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          null,
		 *          null,
		 *          null,
		 *          {
		 *            "data": null,
		 *            "defaultContent": "Edit"
		 *          }
		 *        ]
		 *      } );
		 *    } );
		 */
		"sDefaultContent": null,
	
	
		/**
		 * This parameter is only used in DataTables' server-side processing. It can
		 * be exceptionally useful to know what columns are being displayed on the
		 * client side, and to map these to database fields. When defined, the names
		 * also allow DataTables to reorder information from the server if it comes
		 * back in an unexpected order (i.e. if you switch your columns around on the
		 * client-side, your server-side code does not also need updating).
		 *  @type string
		 *  @default <i>Empty string</i>
		 *
		 *  @name DataTable.defaults.column.name
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "name": "engine", "targets": [ 0 ] },
		 *          { "name": "browser", "targets": [ 1 ] },
		 *          { "name": "platform", "targets": [ 2 ] },
		 *          { "name": "version", "targets": [ 3 ] },
		 *          { "name": "grade", "targets": [ 4 ] }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          { "name": "engine" },
		 *          { "name": "browser" },
		 *          { "name": "platform" },
		 *          { "name": "version" },
		 *          { "name": "grade" }
		 *        ]
		 *      } );
		 *    } );
		 */
		"sName": "",
	
	
		/**
		 * Defines a data source type for the ordering which can be used to read
		 * real-time information from the table (updating the internally cached
		 * version) prior to ordering. This allows ordering to occur on user
		 * editable elements such as form inputs.
		 *  @type string
		 *  @default std
		 *
		 *  @name DataTable.defaults.column.orderDataType
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "orderDataType": "dom-text", "targets": [ 2, 3 ] },
		 *          { "type": "numeric", "targets": [ 3 ] },
		 *          { "orderDataType": "dom-select", "targets": [ 4 ] },
		 *          { "orderDataType": "dom-checkbox", "targets": [ 5 ] }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          null,
		 *          null,
		 *          { "orderDataType": "dom-text" },
		 *          { "orderDataType": "dom-text", "type": "numeric" },
		 *          { "orderDataType": "dom-select" },
		 *          { "orderDataType": "dom-checkbox" }
		 *        ]
		 *      } );
		 *    } );
		 */
		"sSortDataType": "std",
	
	
		/**
		 * The title of this column.
		 *  @type string
		 *  @default null <i>Derived from the 'TH' value for this column in the
		 *    original HTML table.</i>
		 *
		 *  @name DataTable.defaults.column.title
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "title": "My column title", "targets": [ 0 ] }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          { "title": "My column title" },
		 *          null,
		 *          null,
		 *          null,
		 *          null
		 *        ]
		 *      } );
		 *    } );
		 */
		"sTitle": null,
	
	
		/**
		 * The type allows you to specify how the data for this column will be
		 * ordered. Four types (string, numeric, date and html (which will strip
		 * HTML tags before ordering)) are currently available. Note that only date
		 * formats understood by Javascript's Date() object will be accepted as type
		 * date. For example: "Mar 26, 2008 5:03 PM". May take the values: 'string',
		 * 'numeric', 'date' or 'html' (by default). Further types can be adding
		 * through plug-ins.
		 *  @type string
		 *  @default null <i>Auto-detected from raw data</i>
		 *
		 *  @name DataTable.defaults.column.type
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "type": "html", "targets": [ 0 ] }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          { "type": "html" },
		 *          null,
		 *          null,
		 *          null,
		 *          null
		 *        ]
		 *      } );
		 *    } );
		 */
		"sType": null,
	
	
		/**
		 * Defining the width of the column, this parameter may take any CSS value
		 * (3em, 20px etc). DataTables applies 'smart' widths to columns which have not
		 * been given a specific width through this interface ensuring that the table
		 * remains readable.
		 *  @type string
		 *  @default null <i>Automatic</i>
		 *
		 *  @name DataTable.defaults.column.width
		 *  @dtopt Columns
		 *
		 *  @example
		 *    // Using `columnDefs`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columnDefs": [
		 *          { "width": "20%", "targets": [ 0 ] }
		 *        ]
		 *      } );
		 *    } );
		 *
		 *  @example
		 *    // Using `columns`
		 *    $(document).ready( function() {
		 *      $('#example').dataTable( {
		 *        "columns": [
		 *          { "width": "20%" },
		 *          null,
		 *          null,
		 *          null,
		 *          null
		 *        ]
		 *      } );
		 *    } );
		 */
		"sWidth": null
	};
	
	_fnHungarianMap( DataTable.defaults.column );
	
	
	
	/**
	 * DataTables settings object - this holds all the information needed for a
	 * given table, including configuration, data and current application of the
	 * table options. DataTables does not have a single instance for each DataTable
	 * with the settings attached to that instance, but rather instances of the
	 * DataTable "class" are created on-the-fly as needed (typically by a
	 * $().dataTable() call) and the settings object is then applied to that
	 * instance.
	 *
	 * Note that this object is related to {@link DataTable.defaults} but this
	 * one is the internal data store for DataTables's cache of columns. It should
	 * NOT be manipulated outside of DataTables. Any configuration should be done
	 * through the initialisation options.
	 *  @namespace
	 *  @todo Really should attach the settings object to individual instances so we
	 *    don't need to create new instances on each $().dataTable() call (if the
	 *    table already exists). It would also save passing oSettings around and
	 *    into every single function. However, this is a very significant
	 *    architecture change for DataTables and will almost certainly break
	 *    backwards compatibility with older installations. This is something that
	 *    will be done in 2.0.
	 */
	DataTable.models.oSettings = {
		/**
		 * Primary features of DataTables and their enablement state.
		 *  @namespace
		 */
		"oFeatures": {
	
			/**
			 * Flag to say if DataTables should automatically try to calculate the
			 * optimum table and columns widths (true) or not (false).
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bAutoWidth": null,
	
			/**
			 * Delay the creation of TR and TD elements until they are actually
			 * needed by a driven page draw. This can give a significant speed
			 * increase for Ajax source and Javascript source data, but makes no
			 * difference at all fro DOM and server-side processing tables.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bDeferRender": null,
	
			/**
			 * Enable filtering on the table or not. Note that if this is disabled
			 * then there is no filtering at all on the table, including fnFilter.
			 * To just remove the filtering input use sDom and remove the 'f' option.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bFilter": null,
	
			/**
			 * Table information element (the 'Showing x of y records' div) enable
			 * flag.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bInfo": null,
	
			/**
			 * Present a user control allowing the end user to change the page size
			 * when pagination is enabled.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bLengthChange": null,
	
			/**
			 * Pagination enabled or not. Note that if this is disabled then length
			 * changing must also be disabled.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bPaginate": null,
	
			/**
			 * Processing indicator enable flag whenever DataTables is enacting a
			 * user request - typically an Ajax request for server-side processing.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bProcessing": null,
	
			/**
			 * Server-side processing enabled flag - when enabled DataTables will
			 * get all data from the server for every draw - there is no filtering,
			 * sorting or paging done on the client-side.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bServerSide": null,
	
			/**
			 * Sorting enablement flag.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bSort": null,
	
			/**
			 * Multi-column sorting
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bSortMulti": null,
	
			/**
			 * Apply a class to the columns which are being sorted to provide a
			 * visual highlight or not. This can slow things down when enabled since
			 * there is a lot of DOM interaction.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bSortClasses": null,
	
			/**
			 * State saving enablement flag.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bStateSave": null
		},
	
	
		/**
		 * Scrolling settings for a table.
		 *  @namespace
		 */
		"oScroll": {
			/**
			 * When the table is shorter in height than sScrollY, collapse the
			 * table container down to the height of the table (when true).
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type boolean
			 */
			"bCollapse": null,
	
			/**
			 * Width of the scrollbar for the web-browser's platform. Calculated
			 * during table initialisation.
			 *  @type int
			 *  @default 0
			 */
			"iBarWidth": 0,
	
			/**
			 * Viewport width for horizontal scrolling. Horizontal scrolling is
			 * disabled if an empty string.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type string
			 */
			"sX": null,
	
			/**
			 * Width to expand the table to when using x-scrolling. Typically you
			 * should not need to use this.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type string
			 *  @deprecated
			 */
			"sXInner": null,
	
			/**
			 * Viewport height for vertical scrolling. Vertical scrolling is disabled
			 * if an empty string.
			 * Note that this parameter will be set by the initialisation routine. To
			 * set a default use {@link DataTable.defaults}.
			 *  @type string
			 */
			"sY": null
		},
	
		/**
		 * Language information for the table.
		 *  @namespace
		 *  @extends DataTable.defaults.oLanguage
		 */
		"oLanguage": {
			/**
			 * Information callback function. See
			 * {@link DataTable.defaults.fnInfoCallback}
			 *  @type function
			 *  @default null
			 */
			"fnInfoCallback": null
		},
	
		/**
		 * Browser support parameters
		 *  @namespace
		 */
		"oBrowser": {
			/**
			 * Indicate if the browser incorrectly calculates width:100% inside a
			 * scrolling element (IE6/7)
			 *  @type boolean
			 *  @default false
			 */
			"bScrollOversize": false,
	
			/**
			 * Determine if the vertical scrollbar is on the right or left of the
			 * scrolling container - needed for rtl language layout, although not
			 * all browsers move the scrollbar (Safari).
			 *  @type boolean
			 *  @default false
			 */
			"bScrollbarLeft": false,
	
			/**
			 * Flag for if `getBoundingClientRect` is fully supported or not
			 *  @type boolean
			 *  @default false
			 */
			"bBounding": false,
	
			/**
			 * Browser scrollbar width
			 *  @type integer
			 *  @default 0
			 */
			"barWidth": 0
		},
	
	
		"ajax": null,
	
	
		/**
		 * Array referencing the nodes which are used for the features. The
		 * parameters of this object match what is allowed by sDom - i.e.
		 *   <ul>
		 *     <li>'l' - Length changing</li>
		 *     <li>'f' - Filtering input</li>
		 *     <li>'t' - The table!</li>
		 *     <li>'i' - Information</li>
		 *     <li>'p' - Pagination</li>
		 *     <li>'r' - pRocessing</li>
		 *   </ul>
		 *  @type array
		 *  @default []
		 */
		"aanFeatures": [],
	
		/**
		 * Store data information - see {@link DataTable.models.oRow} for detailed
		 * information.
		 *  @type array
		 *  @default []
		 */
		"aoData": [],
	
		/**
		 * Array of indexes which are in the current display (after filtering etc)
		 *  @type array
		 *  @default []
		 */
		"aiDisplay": [],
	
		/**
		 * Array of indexes for display - no filtering
		 *  @type array
		 *  @default []
		 */
		"aiDisplayMaster": [],
	
		/**
		 * Map of row ids to data indexes
		 *  @type object
		 *  @default {}
		 */
		"aIds": {},
	
		/**
		 * Store information about each column that is in use
		 *  @type array
		 *  @default []
		 */
		"aoColumns": [],
	
		/**
		 * Store information about the table's header
		 *  @type array
		 *  @default []
		 */
		"aoHeader": [],
	
		/**
		 * Store information about the table's footer
		 *  @type array
		 *  @default []
		 */
		"aoFooter": [],
	
		/**
		 * Store the applied global search information in case we want to force a
		 * research or compare the old search to a new one.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @namespace
		 *  @extends DataTable.models.oSearch
		 */
		"oPreviousSearch": {},
	
		/**
		 * Store the applied search for each column - see
		 * {@link DataTable.models.oSearch} for the format that is used for the
		 * filtering information for each column.
		 *  @type array
		 *  @default []
		 */
		"aoPreSearchCols": [],
	
		/**
		 * Sorting that is applied to the table. Note that the inner arrays are
		 * used in the following manner:
		 * <ul>
		 *   <li>Index 0 - column number</li>
		 *   <li>Index 1 - current sorting direction</li>
		 * </ul>
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type array
		 *  @todo These inner arrays should really be objects
		 */
		"aaSorting": null,
	
		/**
		 * Sorting that is always applied to the table (i.e. prefixed in front of
		 * aaSorting).
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type array
		 *  @default []
		 */
		"aaSortingFixed": [],
	
		/**
		 * Classes to use for the striping of a table.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type array
		 *  @default []
		 */
		"asStripeClasses": null,
	
		/**
		 * If restoring a table - we should restore its striping classes as well
		 *  @type array
		 *  @default []
		 */
		"asDestroyStripes": [],
	
		/**
		 * If restoring a table - we should restore its width
		 *  @type int
		 *  @default 0
		 */
		"sDestroyWidth": 0,
	
		/**
		 * Callback functions array for every time a row is inserted (i.e. on a draw).
		 *  @type array
		 *  @default []
		 */
		"aoRowCallback": [],
	
		/**
		 * Callback functions for the header on each draw.
		 *  @type array
		 *  @default []
		 */
		"aoHeaderCallback": [],
	
		/**
		 * Callback function for the footer on each draw.
		 *  @type array
		 *  @default []
		 */
		"aoFooterCallback": [],
	
		/**
		 * Array of callback functions for draw callback functions
		 *  @type array
		 *  @default []
		 */
		"aoDrawCallback": [],
	
		/**
		 * Array of callback functions for row created function
		 *  @type array
		 *  @default []
		 */
		"aoRowCreatedCallback": [],
	
		/**
		 * Callback functions for just before the table is redrawn. A return of
		 * false will be used to cancel the draw.
		 *  @type array
		 *  @default []
		 */
		"aoPreDrawCallback": [],
	
		/**
		 * Callback functions for when the table has been initialised.
		 *  @type array
		 *  @default []
		 */
		"aoInitComplete": [],
	
	
		/**
		 * Callbacks for modifying the settings to be stored for state saving, prior to
		 * saving state.
		 *  @type array
		 *  @default []
		 */
		"aoStateSaveParams": [],
	
		/**
		 * Callbacks for modifying the settings that have been stored for state saving
		 * prior to using the stored values to restore the state.
		 *  @type array
		 *  @default []
		 */
		"aoStateLoadParams": [],
	
		/**
		 * Callbacks for operating on the settings object once the saved state has been
		 * loaded
		 *  @type array
		 *  @default []
		 */
		"aoStateLoaded": [],
	
		/**
		 * Cache the table ID for quick access
		 *  @type string
		 *  @default <i>Empty string</i>
		 */
		"sTableId": "",
	
		/**
		 * The TABLE node for the main table
		 *  @type node
		 *  @default null
		 */
		"nTable": null,
	
		/**
		 * Permanent ref to the thead element
		 *  @type node
		 *  @default null
		 */
		"nTHead": null,
	
		/**
		 * Permanent ref to the tfoot element - if it exists
		 *  @type node
		 *  @default null
		 */
		"nTFoot": null,
	
		/**
		 * Permanent ref to the tbody element
		 *  @type node
		 *  @default null
		 */
		"nTBody": null,
	
		/**
		 * Cache the wrapper node (contains all DataTables controlled elements)
		 *  @type node
		 *  @default null
		 */
		"nTableWrapper": null,
	
		/**
		 * Indicate if when using server-side processing the loading of data
		 * should be deferred until the second draw.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type boolean
		 *  @default false
		 */
		"bDeferLoading": false,
	
		/**
		 * Indicate if all required information has been read in
		 *  @type boolean
		 *  @default false
		 */
		"bInitialised": false,
	
		/**
		 * Information about open rows. Each object in the array has the parameters
		 * 'nTr' and 'nParent'
		 *  @type array
		 *  @default []
		 */
		"aoOpenRows": [],
	
		/**
		 * Dictate the positioning of DataTables' control elements - see
		 * {@link DataTable.model.oInit.sDom}.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type string
		 *  @default null
		 */
		"sDom": null,
	
		/**
		 * Search delay (in mS)
		 *  @type integer
		 *  @default null
		 */
		"searchDelay": null,
	
		/**
		 * Which type of pagination should be used.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type string
		 *  @default two_button
		 */
		"sPaginationType": "two_button",
	
		/**
		 * The state duration (for `stateSave`) in seconds.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type int
		 *  @default 0
		 */
		"iStateDuration": 0,
	
		/**
		 * Array of callback functions for state saving. Each array element is an
		 * object with the following parameters:
		 *   <ul>
		 *     <li>function:fn - function to call. Takes two parameters, oSettings
		 *       and the JSON string to save that has been thus far created. Returns
		 *       a JSON string to be inserted into a json object
		 *       (i.e. '"param": [ 0, 1, 2]')</li>
		 *     <li>string:sName - name of callback</li>
		 *   </ul>
		 *  @type array
		 *  @default []
		 */
		"aoStateSave": [],
	
		/**
		 * Array of callback functions for state loading. Each array element is an
		 * object with the following parameters:
		 *   <ul>
		 *     <li>function:fn - function to call. Takes two parameters, oSettings
		 *       and the object stored. May return false to cancel state loading</li>
		 *     <li>string:sName - name of callback</li>
		 *   </ul>
		 *  @type array
		 *  @default []
		 */
		"aoStateLoad": [],
	
		/**
		 * State that was saved. Useful for back reference
		 *  @type object
		 *  @default null
		 */
		"oSavedState": null,
	
		/**
		 * State that was loaded. Useful for back reference
		 *  @type object
		 *  @default null
		 */
		"oLoadedState": null,
	
		/**
		 * Source url for AJAX data for the table.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type string
		 *  @default null
		 */
		"sAjaxSource": null,
	
		/**
		 * Property from a given object from which to read the table data from. This
		 * can be an empty string (when not server-side processing), in which case
		 * it is  assumed an an array is given directly.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type string
		 */
		"sAjaxDataProp": null,
	
		/**
		 * The last jQuery XHR object that was used for server-side data gathering.
		 * This can be used for working with the XHR information in one of the
		 * callbacks
		 *  @type object
		 *  @default null
		 */
		"jqXHR": null,
	
		/**
		 * JSON returned from the server in the last Ajax request
		 *  @type object
		 *  @default undefined
		 */
		"json": undefined,
	
		/**
		 * Data submitted as part of the last Ajax request
		 *  @type object
		 *  @default undefined
		 */
		"oAjaxData": undefined,
	
		/**
		 * Function to get the server-side data.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type function
		 */
		"fnServerData": null,
	
		/**
		 * Functions which are called prior to sending an Ajax request so extra
		 * parameters can easily be sent to the server
		 *  @type array
		 *  @default []
		 */
		"aoServerParams": [],
	
		/**
		 * Send the XHR HTTP method - GET or POST (could be PUT or DELETE if
		 * required).
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type string
		 */
		"sServerMethod": null,
	
		/**
		 * Format numbers for display.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type function
		 */
		"fnFormatNumber": null,
	
		/**
		 * List of options that can be used for the user selectable length menu.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type array
		 *  @default []
		 */
		"aLengthMenu": null,
	
		/**
		 * Counter for the draws that the table does. Also used as a tracker for
		 * server-side processing
		 *  @type int
		 *  @default 0
		 */
		"iDraw": 0,
	
		/**
		 * Indicate if a redraw is being done - useful for Ajax
		 *  @type boolean
		 *  @default false
		 */
		"bDrawing": false,
	
		/**
		 * Draw index (iDraw) of the last error when parsing the returned data
		 *  @type int
		 *  @default -1
		 */
		"iDrawError": -1,
	
		/**
		 * Paging display length
		 *  @type int
		 *  @default 10
		 */
		"_iDisplayLength": 10,
	
		/**
		 * Paging start point - aiDisplay index
		 *  @type int
		 *  @default 0
		 */
		"_iDisplayStart": 0,
	
		/**
		 * Server-side processing - number of records in the result set
		 * (i.e. before filtering), Use fnRecordsTotal rather than
		 * this property to get the value of the number of records, regardless of
		 * the server-side processing setting.
		 *  @type int
		 *  @default 0
		 *  @private
		 */
		"_iRecordsTotal": 0,
	
		/**
		 * Server-side processing - number of records in the current display set
		 * (i.e. after filtering). Use fnRecordsDisplay rather than
		 * this property to get the value of the number of records, regardless of
		 * the server-side processing setting.
		 *  @type boolean
		 *  @default 0
		 *  @private
		 */
		"_iRecordsDisplay": 0,
	
		/**
		 * The classes to use for the table
		 *  @type object
		 *  @default {}
		 */
		"oClasses": {},
	
		/**
		 * Flag attached to the settings object so you can check in the draw
		 * callback if filtering has been done in the draw. Deprecated in favour of
		 * events.
		 *  @type boolean
		 *  @default false
		 *  @deprecated
		 */
		"bFiltered": false,
	
		/**
		 * Flag attached to the settings object so you can check in the draw
		 * callback if sorting has been done in the draw. Deprecated in favour of
		 * events.
		 *  @type boolean
		 *  @default false
		 *  @deprecated
		 */
		"bSorted": false,
	
		/**
		 * Indicate that if multiple rows are in the header and there is more than
		 * one unique cell per column, if the top one (true) or bottom one (false)
		 * should be used for sorting / title by DataTables.
		 * Note that this parameter will be set by the initialisation routine. To
		 * set a default use {@link DataTable.defaults}.
		 *  @type boolean
		 */
		"bSortCellsTop": null,
	
		/**
		 * Initialisation object that is used for the table
		 *  @type object
		 *  @default null
		 */
		"oInit": null,
	
		/**
		 * Destroy callback functions - for plug-ins to attach themselves to the
		 * destroy so they can clean up markup and events.
		 *  @type array
		 *  @default []
		 */
		"aoDestroyCallback": [],
	
	
		/**
		 * Get the number of records in the current record set, before filtering
		 *  @type function
		 */
		"fnRecordsTotal": function ()
		{
			return _fnDataSource( this ) == 'ssp' ?
				this._iRecordsTotal * 1 :
				this.aiDisplayMaster.length;
		},
	
		/**
		 * Get the number of records in the current record set, after filtering
		 *  @type function
		 */
		"fnRecordsDisplay": function ()
		{
			return _fnDataSource( this ) == 'ssp' ?
				this._iRecordsDisplay * 1 :
				this.aiDisplay.length;
		},
	
		/**
		 * Get the display end point - aiDisplay index
		 *  @type function
		 */
		"fnDisplayEnd": function ()
		{
			var
				len      = this._iDisplayLength,
				start    = this._iDisplayStart,
				calc     = start + len,
				records  = this.aiDisplay.length,
				features = this.oFeatures,
				paginate = features.bPaginate;
	
			if ( features.bServerSide ) {
				return paginate === false || len === -1 ?
					start + records :
					Math.min( start+len, this._iRecordsDisplay );
			}
			else {
				return ! paginate || calc>records || len===-1 ?
					records :
					calc;
			}
		},
	
		/**
		 * The DataTables object for this table
		 *  @type object
		 *  @default null
		 */
		"oInstance": null,
	
		/**
		 * Unique identifier for each instance of the DataTables object. If there
		 * is an ID on the table node, then it takes that value, otherwise an
		 * incrementing internal counter is used.
		 *  @type string
		 *  @default null
		 */
		"sInstance": null,
	
		/**
		 * tabindex attribute value that is added to DataTables control elements, allowing
		 * keyboard navigation of the table and its controls.
		 */
		"iTabIndex": 0,
	
		/**
		 * DIV container for the footer scrolling table if scrolling
		 */
		"nScrollHead": null,
	
		/**
		 * DIV container for the footer scrolling table if scrolling
		 */
		"nScrollFoot": null,
	
		/**
		 * Last applied sort
		 *  @type array
		 *  @default []
		 */
		"aLastSort": [],
	
		/**
		 * Stored plug-in instances
		 *  @type object
		 *  @default {}
		 */
		"oPlugins": {},
	
		/**
		 * Function used to get a row's id from the row's data
		 *  @type function
		 *  @default null
		 */
		"rowIdFn": null,
	
		/**
		 * Data location where to store a row's id
		 *  @type string
		 *  @default null
		 */
		"rowId": null
	};

	/**
	 * Extension object for DataTables that is used to provide all extension
	 * options.
	 *
	 * Note that the `DataTable.ext` object is available through
	 * `jQuery.fn.dataTable.ext` where it may be accessed and manipulated. It is
	 * also aliased to `jQuery.fn.dataTableExt` for historic reasons.
	 *  @namespace
	 *  @extends DataTable.models.ext
	 */
	
	
	/**
	 * DataTables extensions
	 * 
	 * This namespace acts as a collection area for plug-ins that can be used to
	 * extend DataTables capabilities. Indeed many of the build in methods
	 * use this method to provide their own capabilities (sorting methods for
	 * example).
	 *
	 * Note that this namespace is aliased to `jQuery.fn.dataTableExt` for legacy
	 * reasons
	 *
	 *  @namespace
	 */
	DataTable.ext = _ext = {
		/**
		 * Buttons. For use with the Buttons extension for DataTables. This is
		 * defined here so other extensions can define buttons regardless of load
		 * order. It is _not_ used by DataTables core.
		 *
		 *  @type object
		 *  @default {}
		 */
		buttons: {},
	
	
		/**
		 * Element class names
		 *
		 *  @type object
		 *  @default {}
		 */
		classes: {},
	
	
		/**
		 * DataTables build type (expanded by the download builder)
		 *
		 *  @type string
		 */
		builder: "-source-",
	
	
		/**
		 * Error reporting.
		 * 
		 * How should DataTables report an error. Can take the value 'alert',
		 * 'throw', 'none' or a function.
		 *
		 *  @type string|function
		 *  @default alert
		 */
		errMode: "alert",
	
	
		/**
		 * Feature plug-ins.
		 * 
		 * This is an array of objects which describe the feature plug-ins that are
		 * available to DataTables. These feature plug-ins are then available for
		 * use through the `dom` initialisation option.
		 * 
		 * Each feature plug-in is described by an object which must have the
		 * following properties:
		 * 
		 * * `fnInit` - function that is used to initialise the plug-in,
		 * * `cFeature` - a character so the feature can be enabled by the `dom`
		 *   instillation option. This is case sensitive.
		 *
		 * The `fnInit` function has the following input parameters:
		 *
		 * 1. `{object}` DataTables settings object: see
		 *    {@link DataTable.models.oSettings}
		 *
		 * And the following return is expected:
		 * 
		 * * {node|null} The element which contains your feature. Note that the
		 *   return may also be void if your plug-in does not require to inject any
		 *   DOM elements into DataTables control (`dom`) - for example this might
		 *   be useful when developing a plug-in which allows table control via
		 *   keyboard entry
		 *
		 *  @type array
		 *
		 *  @example
		 *    $.fn.dataTable.ext.features.push( {
		 *      "fnInit": function( oSettings ) {
		 *        return new TableTools( { "oDTSettings": oSettings } );
		 *      },
		 *      "cFeature": "T"
		 *    } );
		 */
		feature: [],
	
	
		/**
		 * Row searching.
		 * 
		 * This method of searching is complimentary to the default type based
		 * searching, and a lot more comprehensive as it allows you complete control
		 * over the searching logic. Each element in this array is a function
		 * (parameters described below) that is called for every row in the table,
		 * and your logic decides if it should be included in the searching data set
		 * or not.
		 *
		 * Searching functions have the following input parameters:
		 *
		 * 1. `{object}` DataTables settings object: see
		 *    {@link DataTable.models.oSettings}
		 * 2. `{array|object}` Data for the row to be processed (same as the
		 *    original format that was passed in as the data source, or an array
		 *    from a DOM data source
		 * 3. `{int}` Row index ({@link DataTable.models.oSettings.aoData}), which
		 *    can be useful to retrieve the `TR` element if you need DOM interaction.
		 *
		 * And the following return is expected:
		 *
		 * * {boolean} Include the row in the searched result set (true) or not
		 *   (false)
		 *
		 * Note that as with the main search ability in DataTables, technically this
		 * is "filtering", since it is subtractive. However, for consistency in
		 * naming we call it searching here.
		 *
		 *  @type array
		 *  @default []
		 *
		 *  @example
		 *    // The following example shows custom search being applied to the
		 *    // fourth column (i.e. the data[3] index) based on two input values
		 *    // from the end-user, matching the data in a certain range.
		 *    $.fn.dataTable.ext.search.push(
		 *      function( settings, data, dataIndex ) {
		 *        var min = document.getElementById('min').value * 1;
		 *        var max = document.getElementById('max').value * 1;
		 *        var version = data[3] == "-" ? 0 : data[3]*1;
		 *
		 *        if ( min == "" && max == "" ) {
		 *          return true;
		 *        }
		 *        else if ( min == "" && version < max ) {
		 *          return true;
		 *        }
		 *        else if ( min < version && "" == max ) {
		 *          return true;
		 *        }
		 *        else if ( min < version && version < max ) {
		 *          return true;
		 *        }
		 *        return false;
		 *      }
		 *    );
		 */
		search: [],
	
	
		/**
		 * Selector extensions
		 *
		 * The `selector` option can be used to extend the options available for the
		 * selector modifier options (`selector-modifier` object data type) that
		 * each of the three built in selector types offer (row, column and cell +
		 * their plural counterparts). For example the Select extension uses this
		 * mechanism to provide an option to select only rows, columns and cells
		 * that have been marked as selected by the end user (`{selected: true}`),
		 * which can be used in conjunction with the existing built in selector
		 * options.
		 *
		 * Each property is an array to which functions can be pushed. The functions
		 * take three attributes:
		 *
		 * * Settings object for the host table
		 * * Options object (`selector-modifier` object type)
		 * * Array of selected item indexes
		 *
		 * The return is an array of the resulting item indexes after the custom
		 * selector has been applied.
		 *
		 *  @type object
		 */
		selector: {
			cell: [],
			column: [],
			row: []
		},
	
	
		/**
		 * Internal functions, exposed for used in plug-ins.
		 * 
		 * Please note that you should not need to use the internal methods for
		 * anything other than a plug-in (and even then, try to avoid if possible).
		 * The internal function may change between releases.
		 *
		 *  @type object
		 *  @default {}
		 */
		internal: {},
	
	
		/**
		 * Legacy configuration options. Enable and disable legacy options that
		 * are available in DataTables.
		 *
		 *  @type object
		 */
		legacy: {
			/**
			 * Enable / disable DataTables 1.9 compatible server-side processing
			 * requests
			 *
			 *  @type boolean
			 *  @default null
			 */
			ajax: null
		},
	
	
		/**
		 * Pagination plug-in methods.
		 * 
		 * Each entry in this object is a function and defines which buttons should
		 * be shown by the pagination rendering method that is used for the table:
		 * {@link DataTable.ext.renderer.pageButton}. The renderer addresses how the
		 * buttons are displayed in the document, while the functions here tell it
		 * what buttons to display. This is done by returning an array of button
		 * descriptions (what each button will do).
		 *
		 * Pagination types (the four built in options and any additional plug-in
		 * options defined here) can be used through the `paginationType`
		 * initialisation parameter.
		 *
		 * The functions defined take two parameters:
		 *
		 * 1. `{int} page` The current page index
		 * 2. `{int} pages` The number of pages in the table
		 *
		 * Each function is expected to return an array where each element of the
		 * array can be one of:
		 *
		 * * `first` - Jump to first page when activated
		 * * `last` - Jump to last page when activated
		 * * `previous` - Show previous page when activated
		 * * `next` - Show next page when activated
		 * * `{int}` - Show page of the index given
		 * * `{array}` - A nested array containing the above elements to add a
		 *   containing 'DIV' element (might be useful for styling).
		 *
		 * Note that DataTables v1.9- used this object slightly differently whereby
		 * an object with two functions would be defined for each plug-in. That
		 * ability is still supported by DataTables 1.10+ to provide backwards
		 * compatibility, but this option of use is now decremented and no longer
		 * documented in DataTables 1.10+.
		 *
		 *  @type object
		 *  @default {}
		 *
		 *  @example
		 *    // Show previous, next and current page buttons only
		 *    $.fn.dataTableExt.oPagination.current = function ( page, pages ) {
		 *      return [ 'previous', page, 'next' ];
		 *    };
		 */
		pager: {},
	
	
		renderer: {
			pageButton: {},
			header: {}
		},
	
	
		/**
		 * Ordering plug-ins - custom data source
		 * 
		 * The extension options for ordering of data available here is complimentary
		 * to the default type based ordering that DataTables typically uses. It
		 * allows much greater control over the the data that is being used to
		 * order a column, but is necessarily therefore more complex.
		 * 
		 * This type of ordering is useful if you want to do ordering based on data
		 * live from the DOM (for example the contents of an 'input' element) rather
		 * than just the static string that DataTables knows of.
		 * 
		 * The way these plug-ins work is that you create an array of the values you
		 * wish to be ordering for the column in question and then return that
		 * array. The data in the array much be in the index order of the rows in
		 * the table (not the currently ordering order!). Which order data gathering
		 * function is run here depends on the `dt-init columns.orderDataType`
		 * parameter that is used for the column (if any).
		 *
		 * The functions defined take two parameters:
		 *
		 * 1. `{object}` DataTables settings object: see
		 *    {@link DataTable.models.oSettings}
		 * 2. `{int}` Target column index
		 *
		 * Each function is expected to return an array:
		 *
		 * * `{array}` Data for the column to be ordering upon
		 *
		 *  @type array
		 *
		 *  @example
		 *    // Ordering using `input` node values
		 *    $.fn.dataTable.ext.order['dom-text'] = function  ( settings, col )
		 *    {
		 *      return this.api().column( col, {order:'index'} ).nodes().map( function ( td, i ) {
		 *        return $('input', td).val();
		 *      } );
		 *    }
		 */
		order: {},
	
	
		/**
		 * Type based plug-ins.
		 *
		 * Each column in DataTables has a type assigned to it, either by automatic
		 * detection or by direct assignment using the `type` option for the column.
		 * The type of a column will effect how it is ordering and search (plug-ins
		 * can also make use of the column type if required).
		 *
		 * @namespace
		 */
		type: {
			/**
			 * Type detection functions.
			 *
			 * The functions defined in this object are used to automatically detect
			 * a column's type, making initialisation of DataTables super easy, even
			 * when complex data is in the table.
			 *
			 * The functions defined take two parameters:
			 *
		     *  1. `{*}` Data from the column cell to be analysed
		     *  2. `{settings}` DataTables settings object. This can be used to
		     *     perform context specific type detection - for example detection
		     *     based on language settings such as using a comma for a decimal
		     *     place. Generally speaking the options from the settings will not
		     *     be required
			 *
			 * Each function is expected to return:
			 *
			 * * `{string|null}` Data type detected, or null if unknown (and thus
			 *   pass it on to the other type detection functions.
			 *
			 *  @type array
			 *
			 *  @example
			 *    // Currency type detection plug-in:
			 *    $.fn.dataTable.ext.type.detect.push(
			 *      function ( data, settings ) {
			 *        // Check the numeric part
			 *        if ( ! data.substring(1).match(/[0-9]/) ) {
			 *          return null;
			 *        }
			 *
			 *        // Check prefixed by currency
			 *        if ( data.charAt(0) == '$' || data.charAt(0) == '&pound;' ) {
			 *          return 'currency';
			 *        }
			 *        return null;
			 *      }
			 *    );
			 */
			detect: [],
	
	
			/**
			 * Type based search formatting.
			 *
			 * The type based searching functions can be used to pre-format the
			 * data to be search on. For example, it can be used to strip HTML
			 * tags or to de-format telephone numbers for numeric only searching.
			 *
			 * Note that is a search is not defined for a column of a given type,
			 * no search formatting will be performed.
			 * 
			 * Pre-processing of searching data plug-ins - When you assign the sType
			 * for a column (or have it automatically detected for you by DataTables
			 * or a type detection plug-in), you will typically be using this for
			 * custom sorting, but it can also be used to provide custom searching
			 * by allowing you to pre-processing the data and returning the data in
			 * the format that should be searched upon. This is done by adding
			 * functions this object with a parameter name which matches the sType
			 * for that target column. This is the corollary of <i>afnSortData</i>
			 * for searching data.
			 *
			 * The functions defined take a single parameter:
			 *
		     *  1. `{*}` Data from the column cell to be prepared for searching
			 *
			 * Each function is expected to return:
			 *
			 * * `{string|null}` Formatted string that will be used for the searching.
			 *
			 *  @type object
			 *  @default {}
			 *
			 *  @example
			 *    $.fn.dataTable.ext.type.search['title-numeric'] = function ( d ) {
			 *      return d.replace(/\n/g," ").replace( /<.*?>/g, "" );
			 *    }
			 */
			search: {},
	
	
			/**
			 * Type based ordering.
			 *
			 * The column type tells DataTables what ordering to apply to the table
			 * when a column is sorted upon. The order for each type that is defined,
			 * is defined by the functions available in this object.
			 *
			 * Each ordering option can be described by three properties added to
			 * this object:
			 *
			 * * `{type}-pre` - Pre-formatting function
			 * * `{type}-asc` - Ascending order function
			 * * `{type}-desc` - Descending order function
			 *
			 * All three can be used together, only `{type}-pre` or only
			 * `{type}-asc` and `{type}-desc` together. It is generally recommended
			 * that only `{type}-pre` is used, as this provides the optimal
			 * implementation in terms of speed, although the others are provided
			 * for compatibility with existing Javascript sort functions.
			 *
			 * `{type}-pre`: Functions defined take a single parameter:
			 *
		     *  1. `{*}` Data from the column cell to be prepared for ordering
			 *
			 * And return:
			 *
			 * * `{*}` Data to be sorted upon
			 *
			 * `{type}-asc` and `{type}-desc`: Functions are typical Javascript sort
			 * functions, taking two parameters:
			 *
		     *  1. `{*}` Data to compare to the second parameter
		     *  2. `{*}` Data to compare to the first parameter
			 *
			 * And returning:
			 *
			 * * `{*}` Ordering match: <0 if first parameter should be sorted lower
			 *   than the second parameter, ===0 if the two parameters are equal and
			 *   >0 if the first parameter should be sorted height than the second
			 *   parameter.
			 * 
			 *  @type object
			 *  @default {}
			 *
			 *  @example
			 *    // Numeric ordering of formatted numbers with a pre-formatter
			 *    $.extend( $.fn.dataTable.ext.type.order, {
			 *      "string-pre": function(x) {
			 *        a = (a === "-" || a === "") ? 0 : a.replace( /[^\d\-\.]/g, "" );
			 *        return parseFloat( a );
			 *      }
			 *    } );
			 *
			 *  @example
			 *    // Case-sensitive string ordering, with no pre-formatting method
			 *    $.extend( $.fn.dataTable.ext.order, {
			 *      "string-case-asc": function(x,y) {
			 *        return ((x < y) ? -1 : ((x > y) ? 1 : 0));
			 *      },
			 *      "string-case-desc": function(x,y) {
			 *        return ((x < y) ? 1 : ((x > y) ? -1 : 0));
			 *      }
			 *    } );
			 */
			order: {}
		},
	
		/**
		 * Unique DataTables instance counter
		 *
		 * @type int
		 * @private
		 */
		_unique: 0,
	
	
		//
		// Depreciated
		// The following properties are retained for backwards compatiblity only.
		// The should not be used in new projects and will be removed in a future
		// version
		//
	
		/**
		 * Version check function.
		 *  @type function
		 *  @depreciated Since 1.10
		 */
		fnVersionCheck: DataTable.fnVersionCheck,
	
	
		/**
		 * Index for what 'this' index API functions should use
		 *  @type int
		 *  @deprecated Since v1.10
		 */
		iApiIndex: 0,
	
	
		/**
		 * jQuery UI class container
		 *  @type object
		 *  @deprecated Since v1.10
		 */
		oJUIClasses: {},
	
	
		/**
		 * Software version
		 *  @type string
		 *  @deprecated Since v1.10
		 */
		sVersion: DataTable.version
	};
	
	
	//
	// Backwards compatibility. Alias to pre 1.10 Hungarian notation counter parts
	//
	$.extend( _ext, {
		afnFiltering: _ext.search,
		aTypes:       _ext.type.detect,
		ofnSearch:    _ext.type.search,
		oSort:        _ext.type.order,
		afnSortData:  _ext.order,
		aoFeatures:   _ext.feature,
		oApi:         _ext.internal,
		oStdClasses:  _ext.classes,
		oPagination:  _ext.pager
	} );
	
	
	$.extend( DataTable.ext.classes, {
		"sTable": "dataTable",
		"sNoFooter": "no-footer",
	
		/* Paging buttons */
		"sPageButton": "paginate_button",
		"sPageButtonActive": "current",
		"sPageButtonDisabled": "disabled",
	
		/* Striping classes */
		"sStripeOdd": "odd",
		"sStripeEven": "even",
	
		/* Empty row */
		"sRowEmpty": "dataTables_empty",
	
		/* Features */
		"sWrapper": "dataTables_wrapper",
		"sFilter": "dataTables_filter",
		"sInfo": "dataTables_info",
		"sPaging": "dataTables_paginate paging_", /* Note that the type is postfixed */
		"sLength": "dataTables_length",
		"sProcessing": "dataTables_processing",
	
		/* Sorting */
		"sSortAsc": "sorting_asc",
		"sSortDesc": "sorting_desc",
		"sSortable": "sorting", /* Sortable in both directions */
		"sSortableAsc": "sorting_desc_disabled",
		"sSortableDesc": "sorting_asc_disabled",
		"sSortableNone": "sorting_disabled",
		"sSortColumn": "sorting_", /* Note that an int is postfixed for the sorting order */
	
		/* Filtering */
		"sFilterInput": "",
	
		/* Page length */
		"sLengthSelect": "",
	
		/* Scrolling */
		"sScrollWrapper": "dataTables_scroll",
		"sScrollHead": "dataTables_scrollHead",
		"sScrollHeadInner": "dataTables_scrollHeadInner",
		"sScrollBody": "dataTables_scrollBody",
		"sScrollFoot": "dataTables_scrollFoot",
		"sScrollFootInner": "dataTables_scrollFootInner",
	
		/* Misc */
		"sHeaderTH": "",
		"sFooterTH": "",
	
		// Deprecated
		"sSortJUIAsc": "",
		"sSortJUIDesc": "",
		"sSortJUI": "",
		"sSortJUIAscAllowed": "",
		"sSortJUIDescAllowed": "",
		"sSortJUIWrapper": "",
		"sSortIcon": "",
		"sJUIHeader": "",
		"sJUIFooter": ""
	} );
	
	
	var extPagination = DataTable.ext.pager;
	
	function _numbers ( page, pages ) {
		var
			numbers = [],
			buttons = extPagination.numbers_length,
			half = Math.floor( buttons / 2 ),
			i = 1;
	
		if ( pages <= buttons ) {
			numbers = _range( 0, pages );
		}
		else if ( page <= half ) {
			numbers = _range( 0, buttons-2 );
			numbers.push( 'ellipsis' );
			numbers.push( pages-1 );
		}
		else if ( page >= pages - 1 - half ) {
			numbers = _range( pages-(buttons-2), pages );
			numbers.splice( 0, 0, 'ellipsis' ); // no unshift in ie6
			numbers.splice( 0, 0, 0 );
		}
		else {
			numbers = _range( page-half+2, page+half-1 );
			numbers.push( 'ellipsis' );
			numbers.push( pages-1 );
			numbers.splice( 0, 0, 'ellipsis' );
			numbers.splice( 0, 0, 0 );
		}
	
		numbers.DT_el = 'span';
		return numbers;
	}
	
	
	$.extend( extPagination, {
		simple: function ( page, pages ) {
			return [ 'previous', 'next' ];
		},
	
		full: function ( page, pages ) {
			return [  'first', 'previous', 'next', 'last' ];
		},
	
		numbers: function ( page, pages ) {
			return [ _numbers(page, pages) ];
		},
	
		simple_numbers: function ( page, pages ) {
			return [ 'previous', _numbers(page, pages), 'next' ];
		},
	
		full_numbers: function ( page, pages ) {
			return [ 'first', 'previous', _numbers(page, pages), 'next', 'last' ];
		},
		
		first_last_numbers: function (page, pages) {
	 		return ['first', _numbers(page, pages), 'last'];
	 	},
	
		// For testing and plug-ins to use
		_numbers: _numbers,
	
		// Number of number buttons (including ellipsis) to show. _Must be odd!_
		numbers_length: 7
	} );
	
	
	$.extend( true, DataTable.ext.renderer, {
		pageButton: {
			_: function ( settings, host, idx, buttons, page, pages ) {
				var classes = settings.oClasses;
				var lang = settings.oLanguage.oPaginate;
				var aria = settings.oLanguage.oAria.paginate || {};
				var btnDisplay, btnClass, counter=0;
	
				var attach = function( container, buttons ) {
					var i, ien, node, button, tabIndex;
					var disabledClass = classes.sPageButtonDisabled;
					var clickHandler = function ( e ) {
						_fnPageChange( settings, e.data.action, true );
					};
	
					for ( i=0, ien=buttons.length ; i<ien ; i++ ) {
						button = buttons[i];
	
						if ( Array.isArray( button ) ) {
							var inner = $( '<'+(button.DT_el || 'div')+'/>' )
								.appendTo( container );
							attach( inner, button );
						}
						else {
							btnDisplay = null;
							btnClass = button;
							tabIndex = settings.iTabIndex;
	
							switch ( button ) {
								case 'ellipsis':
									container.append('<span class="ellipsis">&#x2026;</span>');
									break;
	
								case 'first':
									btnDisplay = lang.sFirst;
	
									if ( page === 0 ) {
										tabIndex = -1;
										btnClass += ' ' + disabledClass;
									}
									break;
	
								case 'previous':
									btnDisplay = lang.sPrevious;
	
									if ( page === 0 ) {
										tabIndex = -1;
										btnClass += ' ' + disabledClass;
									}
									break;
	
								case 'next':
									btnDisplay = lang.sNext;
	
									if ( pages === 0 || page === pages-1 ) {
										tabIndex = -1;
										btnClass += ' ' + disabledClass;
									}
									break;
	
								case 'last':
									btnDisplay = lang.sLast;
	
									if ( pages === 0 || page === pages-1 ) {
										tabIndex = -1;
										btnClass += ' ' + disabledClass;
									}
									break;
	
								default:
									btnDisplay = settings.fnFormatNumber( button + 1 );
									btnClass = page === button ?
										classes.sPageButtonActive : '';
									break;
							}
	
							if ( btnDisplay !== null ) {
								node = $('<a>', {
										'class': classes.sPageButton+' '+btnClass,
										'aria-controls': settings.sTableId,
										'aria-label': aria[ button ],
										'data-dt-idx': counter,
										'tabindex': tabIndex,
										'id': idx === 0 && typeof button === 'string' ?
											settings.sTableId +'_'+ button :
											null
									} )
									.html( btnDisplay )
									.appendTo( container );
	
								_fnBindAction(
									node, {action: button}, clickHandler
								);
	
								counter++;
							}
						}
					}
				};
	
				// IE9 throws an 'unknown error' if document.activeElement is used
				// inside an iframe or frame. Try / catch the error. Not good for
				// accessibility, but neither are frames.
				var activeEl;
	
				try {
					// Because this approach is destroying and recreating the paging
					// elements, focus is lost on the select button which is bad for
					// accessibility. So we want to restore focus once the draw has
					// completed
					activeEl = $(host).find(document.activeElement).data('dt-idx');
				}
				catch (e) {}
	
				attach( $(host).empty(), buttons );
	
				if ( activeEl !== undefined ) {
					$(host).find( '[data-dt-idx='+activeEl+']' ).trigger('focus');
				}
			}
		}
	} );
	
	
	
	// Built in type detection. See model.ext.aTypes for information about
	// what is required from this methods.
	$.extend( DataTable.ext.type.detect, [
		// Plain numbers - first since V8 detects some plain numbers as dates
		// e.g. Date.parse('55') (but not all, e.g. Date.parse('22')...).
		function ( d, settings )
		{
			var decimal = settings.oLanguage.sDecimal;
			return _isNumber( d, decimal ) ? 'num'+decimal : null;
		},
	
		// Dates (only those recognised by the browser's Date.parse)
		function ( d, settings )
		{
			// V8 tries _very_ hard to make a string passed into `Date.parse()`
			// valid, so we need to use a regex to restrict date formats. Use a
			// plug-in for anything other than ISO8601 style strings
			if ( d && !(d instanceof Date) && ! _re_date.test(d) ) {
				return null;
			}
			var parsed = Date.parse(d);
			return (parsed !== null && !isNaN(parsed)) || _empty(d) ? 'date' : null;
		},
	
		// Formatted numbers
		function ( d, settings )
		{
			var decimal = settings.oLanguage.sDecimal;
			return _isNumber( d, decimal, true ) ? 'num-fmt'+decimal : null;
		},
	
		// HTML numeric
		function ( d, settings )
		{
			var decimal = settings.oLanguage.sDecimal;
			return _htmlNumeric( d, decimal ) ? 'html-num'+decimal : null;
		},
	
		// HTML numeric, formatted
		function ( d, settings )
		{
			var decimal = settings.oLanguage.sDecimal;
			return _htmlNumeric( d, decimal, true ) ? 'html-num-fmt'+decimal : null;
		},
	
		// HTML (this is strict checking - there must be html)
		function ( d, settings )
		{
			return _empty( d ) || (typeof d === 'string' && d.indexOf('<') !== -1) ?
				'html' : null;
		}
	] );
	
	
	
	// Filter formatting functions. See model.ext.ofnSearch for information about
	// what is required from these methods.
	// 
	// Note that additional search methods are added for the html numbers and
	// html formatted numbers by `_addNumericSort()` when we know what the decimal
	// place is
	
	
	$.extend( DataTable.ext.type.search, {
		html: function ( data ) {
			return _empty(data) ?
				data :
				typeof data === 'string' ?
					data
						.replace( _re_new_lines, " " )
						.replace( _re_html, "" ) :
					'';
		},
	
		string: function ( data ) {
			return _empty(data) ?
				data :
				typeof data === 'string' ?
					data.replace( _re_new_lines, " " ) :
					data;
		}
	} );
	
	
	
	var __numericReplace = function ( d, decimalPlace, re1, re2 ) {
		if ( d !== 0 && (!d || d === '-') ) {
			return -Infinity;
		}
	
		// If a decimal place other than `.` is used, it needs to be given to the
		// function so we can detect it and replace with a `.` which is the only
		// decimal place Javascript recognises - it is not locale aware.
		if ( decimalPlace ) {
			d = _numToDecimal( d, decimalPlace );
		}
	
		if ( d.replace ) {
			if ( re1 ) {
				d = d.replace( re1, '' );
			}
	
			if ( re2 ) {
				d = d.replace( re2, '' );
			}
		}
	
		return d * 1;
	};
	
	
	// Add the numeric 'deformatting' functions for sorting and search. This is done
	// in a function to provide an easy ability for the language options to add
	// additional methods if a non-period decimal place is used.
	function _addNumericSort ( decimalPlace ) {
		$.each(
			{
				// Plain numbers
				"num": function ( d ) {
					return __numericReplace( d, decimalPlace );
				},
	
				// Formatted numbers
				"num-fmt": function ( d ) {
					return __numericReplace( d, decimalPlace, _re_formatted_numeric );
				},
	
				// HTML numeric
				"html-num": function ( d ) {
					return __numericReplace( d, decimalPlace, _re_html );
				},
	
				// HTML numeric, formatted
				"html-num-fmt": function ( d ) {
					return __numericReplace( d, decimalPlace, _re_html, _re_formatted_numeric );
				}
			},
			function ( key, fn ) {
				// Add the ordering method
				_ext.type.order[ key+decimalPlace+'-pre' ] = fn;
	
				// For HTML types add a search formatter that will strip the HTML
				if ( key.match(/^html\-/) ) {
					_ext.type.search[ key+decimalPlace ] = _ext.type.search.html;
				}
			}
		);
	}
	
	
	// Default sort methods
	$.extend( _ext.type.order, {
		// Dates
		"date-pre": function ( d ) {
			var ts = Date.parse( d );
			return isNaN(ts) ? -Infinity : ts;
		},
	
		// html
		"html-pre": function ( a ) {
			return _empty(a) ?
				'' :
				a.replace ?
					a.replace( /<.*?>/g, "" ).toLowerCase() :
					a+'';
		},
	
		// string
		"string-pre": function ( a ) {
			// This is a little complex, but faster than always calling toString,
			// http://jsperf.com/tostring-v-check
			return _empty(a) ?
				'' :
				typeof a === 'string' ?
					a.toLowerCase() :
					! a.toString ?
						'' :
						a.toString();
		},
	
		// string-asc and -desc are retained only for compatibility with the old
		// sort methods
		"string-asc": function ( x, y ) {
			return ((x < y) ? -1 : ((x > y) ? 1 : 0));
		},
	
		"string-desc": function ( x, y ) {
			return ((x < y) ? 1 : ((x > y) ? -1 : 0));
		}
	} );
	
	
	// Numeric sorting types - order doesn't matter here
	_addNumericSort( '' );
	
	
	$.extend( true, DataTable.ext.renderer, {
		header: {
			_: function ( settings, cell, column, classes ) {
				// No additional mark-up required
				// Attach a sort listener to update on sort - note that using the
				// `DT` namespace will allow the event to be removed automatically
				// on destroy, while the `dt` namespaced event is the one we are
				// listening for
				$(settings.nTable).on( 'order.dt.DT', function ( e, ctx, sorting, columns ) {
					if ( settings !== ctx ) { // need to check this this is the host
						return;               // table, not a nested one
					}
	
					var colIdx = column.idx;
	
					cell
						.removeClass(
							classes.sSortAsc +' '+
							classes.sSortDesc
						)
						.addClass( columns[ colIdx ] == 'asc' ?
							classes.sSortAsc : columns[ colIdx ] == 'desc' ?
								classes.sSortDesc :
								column.sSortingClass
						);
				} );
			},
	
			jqueryui: function ( settings, cell, column, classes ) {
				$('<div/>')
					.addClass( classes.sSortJUIWrapper )
					.append( cell.contents() )
					.append( $('<span/>')
						.addClass( classes.sSortIcon+' '+column.sSortingClassJUI )
					)
					.appendTo( cell );
	
				// Attach a sort listener to update on sort
				$(settings.nTable).on( 'order.dt.DT', function ( e, ctx, sorting, columns ) {
					if ( settings !== ctx ) {
						return;
					}
	
					var colIdx = column.idx;
	
					cell
						.removeClass( classes.sSortAsc +" "+classes.sSortDesc )
						.addClass( columns[ colIdx ] == 'asc' ?
							classes.sSortAsc : columns[ colIdx ] == 'desc' ?
								classes.sSortDesc :
								column.sSortingClass
						);
	
					cell
						.find( 'span.'+classes.sSortIcon )
						.removeClass(
							classes.sSortJUIAsc +" "+
							classes.sSortJUIDesc +" "+
							classes.sSortJUI +" "+
							classes.sSortJUIAscAllowed +" "+
							classes.sSortJUIDescAllowed
						)
						.addClass( columns[ colIdx ] == 'asc' ?
							classes.sSortJUIAsc : columns[ colIdx ] == 'desc' ?
								classes.sSortJUIDesc :
								column.sSortingClassJUI
						);
				} );
			}
		}
	} );
	
	/*
	 * Public helper functions. These aren't used internally by DataTables, or
	 * called by any of the options passed into DataTables, but they can be used
	 * externally by developers working with DataTables. They are helper functions
	 * to make working with DataTables a little bit easier.
	 */
	
	var __htmlEscapeEntities = function ( d ) {
		return typeof d === 'string' ?
			d
				.replace(/&/g, '&amp;')
				.replace(/</g, '&lt;')
				.replace(/>/g, '&gt;')
				.replace(/"/g, '&quot;') :
			d;
	};
	
	/**
	 * Helpers for `columns.render`.
	 *
	 * The options defined here can be used with the `columns.render` initialisation
	 * option to provide a display renderer. The following functions are defined:
	 *
	 * * `number` - Will format numeric data (defined by `columns.data`) for
	 *   display, retaining the original unformatted data for sorting and filtering.
	 *   It takes 5 parameters:
	 *   * `string` - Thousands grouping separator
	 *   * `string` - Decimal point indicator
	 *   * `integer` - Number of decimal points to show
	 *   * `string` (optional) - Prefix.
	 *   * `string` (optional) - Postfix (/suffix).
	 * * `text` - Escape HTML to help prevent XSS attacks. It has no optional
	 *   parameters.
	 *
	 * @example
	 *   // Column definition using the number renderer
	 *   {
	 *     data: "salary",
	 *     render: $.fn.dataTable.render.number( '\'', '.', 0, '$' )
	 *   }
	 *
	 * @namespace
	 */
	DataTable.render = {
		number: function ( thousands, decimal, precision, prefix, postfix ) {
			return {
				display: function ( d ) {
					if ( typeof d !== 'number' && typeof d !== 'string' ) {
						return d;
					}
	
					var negative = d < 0 ? '-' : '';
					var flo = parseFloat( d );
	
					// If NaN then there isn't much formatting that we can do - just
					// return immediately, escaping any HTML (this was supposed to
					// be a number after all)
					if ( isNaN( flo ) ) {
						return __htmlEscapeEntities( d );
					}
	
					flo = flo.toFixed( precision );
					d = Math.abs( flo );
	
					var intPart = parseInt( d, 10 );
					var floatPart = precision ?
						decimal+(d - intPart).toFixed( precision ).substring( 2 ):
						'';
	
					// If zero, then can't have a negative prefix
					if (intPart === 0 && parseFloat(floatPart) === 0) {
						negative = '';
					}
	
					return negative + (prefix||'') +
						intPart.toString().replace(
							/\B(?=(\d{3})+(?!\d))/g, thousands
						) +
						floatPart +
						(postfix||'');
				}
			};
		},
	
		text: function () {
			return {
				display: __htmlEscapeEntities,
				filter: __htmlEscapeEntities
			};
		}
	};
	
	
	/*
	 * This is really a good bit rubbish this method of exposing the internal methods
	 * publicly... - To be fixed in 2.0 using methods on the prototype
	 */
	
	
	/**
	 * Create a wrapper function for exporting an internal functions to an external API.
	 *  @param {string} fn API function name
	 *  @returns {function} wrapped function
	 *  @memberof DataTable#internal
	 */
	function _fnExternApiFunc (fn)
	{
		return function() {
			var args = [_fnSettingsFromNode( this[DataTable.ext.iApiIndex] )].concat(
				Array.prototype.slice.call(arguments)
			);
			return DataTable.ext.internal[fn].apply( this, args );
		};
	}
	
	
	/**
	 * Reference to internal functions for use by plug-in developers. Note that
	 * these methods are references to internal functions and are considered to be
	 * private. If you use these methods, be aware that they are liable to change
	 * between versions.
	 *  @namespace
	 */
	$.extend( DataTable.ext.internal, {
		_fnExternApiFunc: _fnExternApiFunc,
		_fnBuildAjax: _fnBuildAjax,
		_fnAjaxUpdate: _fnAjaxUpdate,
		_fnAjaxParameters: _fnAjaxParameters,
		_fnAjaxUpdateDraw: _fnAjaxUpdateDraw,
		_fnAjaxDataSrc: _fnAjaxDataSrc,
		_fnAddColumn: _fnAddColumn,
		_fnColumnOptions: _fnColumnOptions,
		_fnAdjustColumnSizing: _fnAdjustColumnSizing,
		_fnVisibleToColumnIndex: _fnVisibleToColumnIndex,
		_fnColumnIndexToVisible: _fnColumnIndexToVisible,
		_fnVisbleColumns: _fnVisbleColumns,
		_fnGetColumns: _fnGetColumns,
		_fnColumnTypes: _fnColumnTypes,
		_fnApplyColumnDefs: _fnApplyColumnDefs,
		_fnHungarianMap: _fnHungarianMap,
		_fnCamelToHungarian: _fnCamelToHungarian,
		_fnLanguageCompat: _fnLanguageCompat,
		_fnBrowserDetect: _fnBrowserDetect,
		_fnAddData: _fnAddData,
		_fnAddTr: _fnAddTr,
		_fnNodeToDataIndex: _fnNodeToDataIndex,
		_fnNodeToColumnIndex: _fnNodeToColumnIndex,
		_fnGetCellData: _fnGetCellData,
		_fnSetCellData: _fnSetCellData,
		_fnSplitObjNotation: _fnSplitObjNotation,
		_fnGetObjectDataFn: _fnGetObjectDataFn,
		_fnSetObjectDataFn: _fnSetObjectDataFn,
		_fnGetDataMaster: _fnGetDataMaster,
		_fnClearTable: _fnClearTable,
		_fnDeleteIndex: _fnDeleteIndex,
		_fnInvalidate: _fnInvalidate,
		_fnGetRowElements: _fnGetRowElements,
		_fnCreateTr: _fnCreateTr,
		_fnBuildHead: _fnBuildHead,
		_fnDrawHead: _fnDrawHead,
		_fnDraw: _fnDraw,
		_fnReDraw: _fnReDraw,
		_fnAddOptionsHtml: _fnAddOptionsHtml,
		_fnDetectHeader: _fnDetectHeader,
		_fnGetUniqueThs: _fnGetUniqueThs,
		_fnFeatureHtmlFilter: _fnFeatureHtmlFilter,
		_fnFilterComplete: _fnFilterComplete,
		_fnFilterCustom: _fnFilterCustom,
		_fnFilterColumn: _fnFilterColumn,
		_fnFilter: _fnFilter,
		_fnFilterCreateSearch: _fnFilterCreateSearch,
		_fnEscapeRegex: _fnEscapeRegex,
		_fnFilterData: _fnFilterData,
		_fnFeatureHtmlInfo: _fnFeatureHtmlInfo,
		_fnUpdateInfo: _fnUpdateInfo,
		_fnInfoMacros: _fnInfoMacros,
		_fnInitialise: _fnInitialise,
		_fnInitComplete: _fnInitComplete,
		_fnLengthChange: _fnLengthChange,
		_fnFeatureHtmlLength: _fnFeatureHtmlLength,
		_fnFeatureHtmlPaginate: _fnFeatureHtmlPaginate,
		_fnPageChange: _fnPageChange,
		_fnFeatureHtmlProcessing: _fnFeatureHtmlProcessing,
		_fnProcessingDisplay: _fnProcessingDisplay,
		_fnFeatureHtmlTable: _fnFeatureHtmlTable,
		_fnScrollDraw: _fnScrollDraw,
		_fnApplyToChildren: _fnApplyToChildren,
		_fnCalculateColumnWidths: _fnCalculateColumnWidths,
		_fnThrottle: _fnThrottle,
		_fnConvertToWidth: _fnConvertToWidth,
		_fnGetWidestNode: _fnGetWidestNode,
		_fnGetMaxLenString: _fnGetMaxLenString,
		_fnStringToCss: _fnStringToCss,
		_fnSortFlatten: _fnSortFlatten,
		_fnSort: _fnSort,
		_fnSortAria: _fnSortAria,
		_fnSortListener: _fnSortListener,
		_fnSortAttachListener: _fnSortAttachListener,
		_fnSortingClasses: _fnSortingClasses,
		_fnSortData: _fnSortData,
		_fnSaveState: _fnSaveState,
		_fnLoadState: _fnLoadState,
		_fnSettingsFromNode: _fnSettingsFromNode,
		_fnLog: _fnLog,
		_fnMap: _fnMap,
		_fnBindAction: _fnBindAction,
		_fnCallbackReg: _fnCallbackReg,
		_fnCallbackFire: _fnCallbackFire,
		_fnLengthOverflow: _fnLengthOverflow,
		_fnRenderer: _fnRenderer,
		_fnDataSource: _fnDataSource,
		_fnRowAttributes: _fnRowAttributes,
		_fnExtend: _fnExtend,
		_fnCalculateEnd: function () {} // Used by a lot of plug-ins, but redundant
		                                // in 1.10, so this dead-end function is
		                                // added to prevent errors
	} );
	

	// jQuery access
	$.fn.dataTable = DataTable;

	// Provide access to the host jQuery object (circular reference)
	DataTable.$ = $;

	// Legacy aliases
	$.fn.dataTableSettings = DataTable.settings;
	$.fn.dataTableExt = DataTable.ext;

	// With a capital `D` we return a DataTables API instance rather than a
	// jQuery object
	$.fn.DataTable = function ( opts ) {
		return $(this).dataTable( opts ).api();
	};

	// All properties that are available to $.fn.dataTable should also be
	// available on $.fn.DataTable
	$.each( DataTable, function ( prop, val ) {
		$.fn.DataTable[ prop ] = val;
	} );


	// Information about events fired by DataTables - for documentation.
	/**
	 * Draw event, fired whenever the table is redrawn on the page, at the same
	 * point as fnDrawCallback. This may be useful for binding events or
	 * performing calculations when the table is altered at all.
	 *  @name DataTable#draw.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} o DataTables settings object {@link DataTable.models.oSettings}
	 */

	/**
	 * Search event, fired when the searching applied to the table (using the
	 * built-in global search, or column filters) is altered.
	 *  @name DataTable#search.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} o DataTables settings object {@link DataTable.models.oSettings}
	 */

	/**
	 * Page change event, fired when the paging of the table is altered.
	 *  @name DataTable#page.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} o DataTables settings object {@link DataTable.models.oSettings}
	 */

	/**
	 * Order event, fired when the ordering applied to the table is altered.
	 *  @name DataTable#order.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} o DataTables settings object {@link DataTable.models.oSettings}
	 */

	/**
	 * DataTables initialisation complete event, fired when the table is fully
	 * drawn, including Ajax data loaded, if Ajax data is required.
	 *  @name DataTable#init.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} oSettings DataTables settings object
	 *  @param {object} json The JSON object request from the server - only
	 *    present if client-side Ajax sourced data is used</li></ol>
	 */

	/**
	 * State save event, fired when the table has changed state a new state save
	 * is required. This event allows modification of the state saving object
	 * prior to actually doing the save, including addition or other state
	 * properties (for plug-ins) or modification of a DataTables core property.
	 *  @name DataTable#stateSaveParams.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} oSettings DataTables settings object
	 *  @param {object} json The state information to be saved
	 */

	/**
	 * State load event, fired when the table is loading state from the stored
	 * data, but prior to the settings object being modified by the saved state
	 * - allowing modification of the saved state is required or loading of
	 * state for a plug-in.
	 *  @name DataTable#stateLoadParams.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} oSettings DataTables settings object
	 *  @param {object} json The saved state information
	 */

	/**
	 * State loaded event, fired when state has been loaded from stored data and
	 * the settings object has been modified by the loaded data.
	 *  @name DataTable#stateLoaded.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} oSettings DataTables settings object
	 *  @param {object} json The saved state information
	 */

	/**
	 * Processing event, fired when DataTables is doing some kind of processing
	 * (be it, order, search or anything else). It can be used to indicate to
	 * the end user that there is something happening, or that something has
	 * finished.
	 *  @name DataTable#processing.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} oSettings DataTables settings object
	 *  @param {boolean} bShow Flag for if DataTables is doing processing or not
	 */

	/**
	 * Ajax (XHR) event, fired whenever an Ajax request is completed from a
	 * request to made to the server for new data. This event is called before
	 * DataTables processed the returned data, so it can also be used to pre-
	 * process the data returned from the server, if needed.
	 *
	 * Note that this trigger is called in `fnServerData`, if you override
	 * `fnServerData` and which to use this event, you need to trigger it in you
	 * success function.
	 *  @name DataTable#xhr.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} o DataTables settings object {@link DataTable.models.oSettings}
	 *  @param {object} json JSON returned from the server
	 *
	 *  @example
	 *     // Use a custom property returned from the server in another DOM element
	 *     $('#table').dataTable().on('xhr.dt', function (e, settings, json) {
	 *       $('#status').html( json.status );
	 *     } );
	 *
	 *  @example
	 *     // Pre-process the data returned from the server
	 *     $('#table').dataTable().on('xhr.dt', function (e, settings, json) {
	 *       for ( var i=0, ien=json.aaData.length ; i<ien ; i++ ) {
	 *         json.aaData[i].sum = json.aaData[i].one + json.aaData[i].two;
	 *       }
	 *       // Note no return - manipulate the data directly in the JSON object.
	 *     } );
	 */

	/**
	 * Destroy event, fired when the DataTable is destroyed by calling fnDestroy
	 * or passing the bDestroy:true parameter in the initialisation object. This
	 * can be used to remove bound events, added DOM nodes, etc.
	 *  @name DataTable#destroy.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} o DataTables settings object {@link DataTable.models.oSettings}
	 */

	/**
	 * Page length change event, fired when number of records to show on each
	 * page (the length) is changed.
	 *  @name DataTable#length.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} o DataTables settings object {@link DataTable.models.oSettings}
	 *  @param {integer} len New length
	 */

	/**
	 * Column sizing has changed.
	 *  @name DataTable#column-sizing.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} o DataTables settings object {@link DataTable.models.oSettings}
	 */

	/**
	 * Column visibility has changed.
	 *  @name DataTable#column-visibility.dt
	 *  @event
	 *  @param {event} e jQuery event object
	 *  @param {object} o DataTables settings object {@link DataTable.models.oSettings}
	 *  @param {int} column Column index
	 *  @param {bool} vis `false` if column now hidden, or `true` if visible
	 */

	return $.fn.dataTable;
}));


/***/ }),

/***/ "./node_modules/jquery/dist/jquery.js":
/*!********************************************!*\
  !*** ./node_modules/jquery/dist/jquery.js ***!
  \********************************************/
/***/ (function(module, exports) {

var __WEBPACK_AMD_DEFINE_ARRAY__, __WEBPACK_AMD_DEFINE_RESULT__;/*!
 * jQuery JavaScript Library v3.6.0
 * https://jquery.com/
 *
 * Includes Sizzle.js
 * https://sizzlejs.com/
 *
 * Copyright OpenJS Foundation and other contributors
 * Released under the MIT license
 * https://jquery.org/license
 *
 * Date: 2021-03-02T17:08Z
 */
( function( global, factory ) {

	"use strict";

	if (  true && typeof module.exports === "object" ) {

		// For CommonJS and CommonJS-like environments where a proper `window`
		// is present, execute the factory and get jQuery.
		// For environments that do not have a `window` with a `document`
		// (such as Node.js), expose a factory as module.exports.
		// This accentuates the need for the creation of a real `window`.
		// e.g. var jQuery = require("jquery")(window);
		// See ticket #14549 for more info.
		module.exports = global.document ?
			factory( global, true ) :
			function( w ) {
				if ( !w.document ) {
					throw new Error( "jQuery requires a window with a document" );
				}
				return factory( w );
			};
	} else {
		factory( global );
	}

// Pass this if window is not defined yet
} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {

// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
// enough that all such attempts are guarded in a try block.
"use strict";

var arr = [];

var getProto = Object.getPrototypeOf;

var slice = arr.slice;

var flat = arr.flat ? function( array ) {
	return arr.flat.call( array );
} : function( array ) {
	return arr.concat.apply( [], array );
};


var push = arr.push;

var indexOf = arr.indexOf;

var class2type = {};

var toString = class2type.toString;

var hasOwn = class2type.hasOwnProperty;

var fnToString = hasOwn.toString;

var ObjectFunctionString = fnToString.call( Object );

var support = {};

var isFunction = function isFunction( obj ) {

		// Support: Chrome <=57, Firefox <=52
		// In some browsers, typeof returns "function" for HTML <object> elements
		// (i.e., `typeof document.createElement( "object" ) === "function"`).
		// We don't want to classify *any* DOM node as a function.
		// Support: QtWeb <=3.8.5, WebKit <=534.34, wkhtmltopdf tool <=0.12.5
		// Plus for old WebKit, typeof returns "function" for HTML collections
		// (e.g., `typeof document.getElementsByTagName("div") === "function"`). (gh-4756)
		return typeof obj === "function" && typeof obj.nodeType !== "number" &&
			typeof obj.item !== "function";
	};


var isWindow = function isWindow( obj ) {
		return obj != null && obj === obj.window;
	};


var document = window.document;



	var preservedScriptAttributes = {
		type: true,
		src: true,
		nonce: true,
		noModule: true
	};

	function DOMEval( code, node, doc ) {
		doc = doc || document;

		var i, val,
			script = doc.createElement( "script" );

		script.text = code;
		if ( node ) {
			for ( i in preservedScriptAttributes ) {

				// Support: Firefox 64+, Edge 18+
				// Some browsers don't support the "nonce" property on scripts.
				// On the other hand, just using `getAttribute` is not enough as
				// the `nonce` attribute is reset to an empty string whenever it
				// becomes browsing-context connected.
				// See https://github.com/whatwg/html/issues/2369
				// See https://html.spec.whatwg.org/#nonce-attributes
				// The `node.getAttribute` check was added for the sake of
				// `jQuery.globalEval` so that it can fake a nonce-containing node
				// via an object.
				val = node[ i ] || node.getAttribute && node.getAttribute( i );
				if ( val ) {
					script.setAttribute( i, val );
				}
			}
		}
		doc.head.appendChild( script ).parentNode.removeChild( script );
	}


function toType( obj ) {
	if ( obj == null ) {
		return obj + "";
	}

	// Support: Android <=2.3 only (functionish RegExp)
	return typeof obj === "object" || typeof obj === "function" ?
		class2type[ toString.call( obj ) ] || "object" :
		typeof obj;
}
/* global Symbol */
// Defining this global in .eslintrc.json would create a danger of using the global
// unguarded in another place, it seems safer to define global only for this module



var
	version = "3.6.0",

	// Define a local copy of jQuery
	jQuery = function( selector, context ) {

		// The jQuery object is actually just the init constructor 'enhanced'
		// Need init if jQuery is called (just allow error to be thrown if not included)
		return new jQuery.fn.init( selector, context );
	};

jQuery.fn = jQuery.prototype = {

	// The current version of jQuery being used
	jquery: version,

	constructor: jQuery,

	// The default length of a jQuery object is 0
	length: 0,

	toArray: function() {
		return slice.call( this );
	},

	// Get the Nth element in the matched element set OR
	// Get the whole matched element set as a clean array
	get: function( num ) {

		// Return all the elements in a clean array
		if ( num == null ) {
			return slice.call( this );
		}

		// Return just the one element from the set
		return num < 0 ? this[ num + this.length ] : this[ num ];
	},

	// Take an array of elements and push it onto the stack
	// (returning the new matched element set)
	pushStack: function( elems ) {

		// Build a new jQuery matched element set
		var ret = jQuery.merge( this.constructor(), elems );

		// Add the old object onto the stack (as a reference)
		ret.prevObject = this;

		// Return the newly-formed element set
		return ret;
	},

	// Execute a callback for every element in the matched set.
	each: function( callback ) {
		return jQuery.each( this, callback );
	},

	map: function( callback ) {
		return this.pushStack( jQuery.map( this, function( elem, i ) {
			return callback.call( elem, i, elem );
		} ) );
	},

	slice: function() {
		return this.pushStack( slice.apply( this, arguments ) );
	},

	first: function() {
		return this.eq( 0 );
	},

	last: function() {
		return this.eq( -1 );
	},

	even: function() {
		return this.pushStack( jQuery.grep( this, function( _elem, i ) {
			return ( i + 1 ) % 2;
		} ) );
	},

	odd: function() {
		return this.pushStack( jQuery.grep( this, function( _elem, i ) {
			return i % 2;
		} ) );
	},

	eq: function( i ) {
		var len = this.length,
			j = +i + ( i < 0 ? len : 0 );
		return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
	},

	end: function() {
		return this.prevObject || this.constructor();
	},

	// For internal use only.
	// Behaves like an Array's method, not like a jQuery method.
	push: push,
	sort: arr.sort,
	splice: arr.splice
};

jQuery.extend = jQuery.fn.extend = function() {
	var options, name, src, copy, copyIsArray, clone,
		target = arguments[ 0 ] || {},
		i = 1,
		length = arguments.length,
		deep = false;

	// Handle a deep copy situation
	if ( typeof target === "boolean" ) {
		deep = target;

		// Skip the boolean and the target
		target = arguments[ i ] || {};
		i++;
	}

	// Handle case when target is a string or something (possible in deep copy)
	if ( typeof target !== "object" && !isFunction( target ) ) {
		target = {};
	}

	// Extend jQuery itself if only one argument is passed
	if ( i === length ) {
		target = this;
		i--;
	}

	for ( ; i < length; i++ ) {

		// Only deal with non-null/undefined values
		if ( ( options = arguments[ i ] ) != null ) {

			// Extend the base object
			for ( name in options ) {
				copy = options[ name ];

				// Prevent Object.prototype pollution
				// Prevent never-ending loop
				if ( name === "__proto__" || target === copy ) {
					continue;
				}

				// Recurse if we're merging plain objects or arrays
				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
					( copyIsArray = Array.isArray( copy ) ) ) ) {
					src = target[ name ];

					// Ensure proper type for the source value
					if ( copyIsArray && !Array.isArray( src ) ) {
						clone = [];
					} else if ( !copyIsArray && !jQuery.isPlainObject( src ) ) {
						clone = {};
					} else {
						clone = src;
					}
					copyIsArray = false;

					// Never move original objects, clone them
					target[ name ] = jQuery.extend( deep, clone, copy );

				// Don't bring in undefined values
				} else if ( copy !== undefined ) {
					target[ name ] = copy;
				}
			}
		}
	}

	// Return the modified object
	return target;
};

jQuery.extend( {

	// Unique for each copy of jQuery on the page
	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

	// Assume jQuery is ready without the ready module
	isReady: true,

	error: function( msg ) {
		throw new Error( msg );
	},

	noop: function() {},

	isPlainObject: function( obj ) {
		var proto, Ctor;

		// Detect obvious negatives
		// Use toString instead of jQuery.type to catch host objects
		if ( !obj || toString.call( obj ) !== "[object Object]" ) {
			return false;
		}

		proto = getProto( obj );

		// Objects with no prototype (e.g., `Object.create( null )`) are plain
		if ( !proto ) {
			return true;
		}

		// Objects with prototype are plain iff they were constructed by a global Object function
		Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
		return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
	},

	isEmptyObject: function( obj ) {
		var name;

		for ( name in obj ) {
			return false;
		}
		return true;
	},

	// Evaluates a script in a provided context; falls back to the global one
	// if not specified.
	globalEval: function( code, options, doc ) {
		DOMEval( code, { nonce: options && options.nonce }, doc );
	},

	each: function( obj, callback ) {
		var length, i = 0;

		if ( isArrayLike( obj ) ) {
			length = obj.length;
			for ( ; i < length; i++ ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		} else {
			for ( i in obj ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		}

		return obj;
	},

	// results is for internal usage only
	makeArray: function( arr, results ) {
		var ret = results || [];

		if ( arr != null ) {
			if ( isArrayLike( Object( arr ) ) ) {
				jQuery.merge( ret,
					typeof arr === "string" ?
						[ arr ] : arr
				);
			} else {
				push.call( ret, arr );
			}
		}

		return ret;
	},

	inArray: function( elem, arr, i ) {
		return arr == null ? -1 : indexOf.call( arr, elem, i );
	},

	// Support: Android <=4.0 only, PhantomJS 1 only
	// push.apply(_, arraylike) throws on ancient WebKit
	merge: function( first, second ) {
		var len = +second.length,
			j = 0,
			i = first.length;

		for ( ; j < len; j++ ) {
			first[ i++ ] = second[ j ];
		}

		first.length = i;

		return first;
	},

	grep: function( elems, callback, invert ) {
		var callbackInverse,
			matches = [],
			i = 0,
			length = elems.length,
			callbackExpect = !invert;

		// Go through the array, only saving the items
		// that pass the validator function
		for ( ; i < length; i++ ) {
			callbackInverse = !callback( elems[ i ], i );
			if ( callbackInverse !== callbackExpect ) {
				matches.push( elems[ i ] );
			}
		}

		return matches;
	},

	// arg is for internal usage only
	map: function( elems, callback, arg ) {
		var length, value,
			i = 0,
			ret = [];

		// Go through the array, translating each of the items to their new values
		if ( isArrayLike( elems ) ) {
			length = elems.length;
			for ( ; i < length; i++ ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}

		// Go through every key on the object,
		} else {
			for ( i in elems ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}
		}

		// Flatten any nested arrays
		return flat( ret );
	},

	// A global GUID counter for objects
	guid: 1,

	// jQuery.support is not used in Core but other projects attach their
	// properties to it so it needs to exist.
	support: support
} );

if ( typeof Symbol === "function" ) {
	jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
}

// Populate the class2type map
jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
	function( _i, name ) {
		class2type[ "[object " + name + "]" ] = name.toLowerCase();
	} );

function isArrayLike( obj ) {

	// Support: real iOS 8.2 only (not reproducible in simulator)
	// `in` check used to prevent JIT error (gh-2145)
	// hasOwn isn't used here due to false negatives
	// regarding Nodelist length in IE
	var length = !!obj && "length" in obj && obj.length,
		type = toType( obj );

	if ( isFunction( obj ) || isWindow( obj ) ) {
		return false;
	}

	return type === "array" || length === 0 ||
		typeof length === "number" && length > 0 && ( length - 1 ) in obj;
}
var Sizzle =
/*!
 * Sizzle CSS Selector Engine v2.3.6
 * https://sizzlejs.com/
 *
 * Copyright JS Foundation and other contributors
 * Released under the MIT license
 * https://js.foundation/
 *
 * Date: 2021-02-16
 */
( function( window ) {
var i,
	support,
	Expr,
	getText,
	isXML,
	tokenize,
	compile,
	select,
	outermostContext,
	sortInput,
	hasDuplicate,

	// Local document vars
	setDocument,
	document,
	docElem,
	documentIsHTML,
	rbuggyQSA,
	rbuggyMatches,
	matches,
	contains,

	// Instance-specific data
	expando = "sizzle" + 1 * new Date(),
	preferredDoc = window.document,
	dirruns = 0,
	done = 0,
	classCache = createCache(),
	tokenCache = createCache(),
	compilerCache = createCache(),
	nonnativeSelectorCache = createCache(),
	sortOrder = function( a, b ) {
		if ( a === b ) {
			hasDuplicate = true;
		}
		return 0;
	},

	// Instance methods
	hasOwn = ( {} ).hasOwnProperty,
	arr = [],
	pop = arr.pop,
	pushNative = arr.push,
	push = arr.push,
	slice = arr.slice,

	// Use a stripped-down indexOf as it's faster than native
	// https://jsperf.com/thor-indexof-vs-for/5
	indexOf = function( list, elem ) {
		var i = 0,
			len = list.length;
		for ( ; i < len; i++ ) {
			if ( list[ i ] === elem ) {
				return i;
			}
		}
		return -1;
	},

	booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|" +
		"ismap|loop|multiple|open|readonly|required|scoped",

	// Regular expressions

	// http://www.w3.org/TR/css3-selectors/#whitespace
	whitespace = "[\\x20\\t\\r\\n\\f]",

	// https://www.w3.org/TR/css-syntax-3/#ident-token-diagram
	identifier = "(?:\\\\[\\da-fA-F]{1,6}" + whitespace +
		"?|\\\\[^\\r\\n\\f]|[\\w-]|[^\0-\\x7f])+",

	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
	attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +

		// Operator (capture 2)
		"*([*^$|!~]?=)" + whitespace +

		// "Attribute values must be CSS identifiers [capture 5]
		// or strings [capture 3 or capture 4]"
		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" +
		whitespace + "*\\]",

	pseudos = ":(" + identifier + ")(?:\\((" +

		// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
		// 1. quoted (capture 3; capture 4 or capture 5)
		"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +

		// 2. simple (capture 6)
		"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +

		// 3. anything else (capture 2)
		".*" +
		")\\)|)",

	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
	rwhitespace = new RegExp( whitespace + "+", "g" ),
	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" +
		whitespace + "+$", "g" ),

	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace +
		"*" ),
	rdescend = new RegExp( whitespace + "|>" ),

	rpseudo = new RegExp( pseudos ),
	ridentifier = new RegExp( "^" + identifier + "$" ),

	matchExpr = {
		"ID": new RegExp( "^#(" + identifier + ")" ),
		"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
		"TAG": new RegExp( "^(" + identifier + "|[*])" ),
		"ATTR": new RegExp( "^" + attributes ),
		"PSEUDO": new RegExp( "^" + pseudos ),
		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" +
			whitespace + "*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" +
			whitespace + "*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
		"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),

		// For use in libraries implementing .is()
		// We use this for POS matching in `select`
		"needsContext": new RegExp( "^" + whitespace +
			"*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" + whitespace +
			"*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
	},

	rhtml = /HTML$/i,
	rinputs = /^(?:input|select|textarea|button)$/i,
	rheader = /^h\d$/i,

	rnative = /^[^{]+\{\s*\[native \w/,

	// Easily-parseable/retrievable ID or TAG or CLASS selectors
	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

	rsibling = /[+~]/,

	// CSS escapes
	// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
	runescape = new RegExp( "\\\\[\\da-fA-F]{1,6}" + whitespace + "?|\\\\([^\\r\\n\\f])", "g" ),
	funescape = function( escape, nonHex ) {
		var high = "0x" + escape.slice( 1 ) - 0x10000;

		return nonHex ?

			// Strip the backslash prefix from a non-hex escape sequence
			nonHex :

			// Replace a hexadecimal escape sequence with the encoded Unicode code point
			// Support: IE <=11+
			// For values outside the Basic Multilingual Plane (BMP), manually construct a
			// surrogate pair
			high < 0 ?
				String.fromCharCode( high + 0x10000 ) :
				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
	},

	// CSS string/identifier serialization
	// https://drafts.csswg.org/cssom/#common-serializing-idioms
	rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
	fcssescape = function( ch, asCodePoint ) {
		if ( asCodePoint ) {

			// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
			if ( ch === "\0" ) {
				return "\uFFFD";
			}

			// Control characters and (dependent upon position) numbers get escaped as code points
			return ch.slice( 0, -1 ) + "\\" +
				ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
		}

		// Other potentially-special ASCII characters get backslash-escaped
		return "\\" + ch;
	},

	// Used for iframes
	// See setDocument()
	// Removing the function wrapper causes a "Permission Denied"
	// error in IE
	unloadHandler = function() {
		setDocument();
	},

	inDisabledFieldset = addCombinator(
		function( elem ) {
			return elem.disabled === true && elem.nodeName.toLowerCase() === "fieldset";
		},
		{ dir: "parentNode", next: "legend" }
	);

// Optimize for push.apply( _, NodeList )
try {
	push.apply(
		( arr = slice.call( preferredDoc.childNodes ) ),
		preferredDoc.childNodes
	);

	// Support: Android<4.0
	// Detect silently failing push.apply
	// eslint-disable-next-line no-unused-expressions
	arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
	push = { apply: arr.length ?

		// Leverage slice if possible
		function( target, els ) {
			pushNative.apply( target, slice.call( els ) );
		} :

		// Support: IE<9
		// Otherwise append directly
		function( target, els ) {
			var j = target.length,
				i = 0;

			// Can't trust NodeList.length
			while ( ( target[ j++ ] = els[ i++ ] ) ) {}
			target.length = j - 1;
		}
	};
}

function Sizzle( selector, context, results, seed ) {
	var m, i, elem, nid, match, groups, newSelector,
		newContext = context && context.ownerDocument,

		// nodeType defaults to 9, since context defaults to document
		nodeType = context ? context.nodeType : 9;

	results = results || [];

	// Return early from calls with invalid selector or context
	if ( typeof selector !== "string" || !selector ||
		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

		return results;
	}

	// Try to shortcut find operations (as opposed to filters) in HTML documents
	if ( !seed ) {
		setDocument( context );
		context = context || document;

		if ( documentIsHTML ) {

			// If the selector is sufficiently simple, try using a "get*By*" DOM method
			// (excepting DocumentFragment context, where the methods don't exist)
			if ( nodeType !== 11 && ( match = rquickExpr.exec( selector ) ) ) {

				// ID selector
				if ( ( m = match[ 1 ] ) ) {

					// Document context
					if ( nodeType === 9 ) {
						if ( ( elem = context.getElementById( m ) ) ) {

							// Support: IE, Opera, Webkit
							// TODO: identify versions
							// getElementById can match elements by name instead of ID
							if ( elem.id === m ) {
								results.push( elem );
								return results;
							}
						} else {
							return results;
						}

					// Element context
					} else {

						// Support: IE, Opera, Webkit
						// TODO: identify versions
						// getElementById can match elements by name instead of ID
						if ( newContext && ( elem = newContext.getElementById( m ) ) &&
							contains( context, elem ) &&
							elem.id === m ) {

							results.push( elem );
							return results;
						}
					}

				// Type selector
				} else if ( match[ 2 ] ) {
					push.apply( results, context.getElementsByTagName( selector ) );
					return results;

				// Class selector
				} else if ( ( m = match[ 3 ] ) && support.getElementsByClassName &&
					context.getElementsByClassName ) {

					push.apply( results, context.getElementsByClassName( m ) );
					return results;
				}
			}

			// Take advantage of querySelectorAll
			if ( support.qsa &&
				!nonnativeSelectorCache[ selector + " " ] &&
				( !rbuggyQSA || !rbuggyQSA.test( selector ) ) &&

				// Support: IE 8 only
				// Exclude object elements
				( nodeType !== 1 || context.nodeName.toLowerCase() !== "object" ) ) {

				newSelector = selector;
				newContext = context;

				// qSA considers elements outside a scoping root when evaluating child or
				// descendant combinators, which is not what we want.
				// In such cases, we work around the behavior by prefixing every selector in the
				// list with an ID selector referencing the scope context.
				// The technique has to be used as well when a leading combinator is used
				// as such selectors are not recognized by querySelectorAll.
				// Thanks to Andrew Dupont for this technique.
				if ( nodeType === 1 &&
					( rdescend.test( selector ) || rcombinators.test( selector ) ) ) {

					// Expand context for sibling selectors
					newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
						context;

					// We can use :scope instead of the ID hack if the browser
					// supports it & if we're not changing the context.
					if ( newContext !== context || !support.scope ) {

						// Capture the context ID, setting it first if necessary
						if ( ( nid = context.getAttribute( "id" ) ) ) {
							nid = nid.replace( rcssescape, fcssescape );
						} else {
							context.setAttribute( "id", ( nid = expando ) );
						}
					}

					// Prefix every selector in the list
					groups = tokenize( selector );
					i = groups.length;
					while ( i-- ) {
						groups[ i ] = ( nid ? "#" + nid : ":scope" ) + " " +
							toSelector( groups[ i ] );
					}
					newSelector = groups.join( "," );
				}

				try {
					push.apply( results,
						newContext.querySelectorAll( newSelector )
					);
					return results;
				} catch ( qsaError ) {
					nonnativeSelectorCache( selector, true );
				} finally {
					if ( nid === expando ) {
						context.removeAttribute( "id" );
					}
				}
			}
		}
	}

	// All others
	return select( selector.replace( rtrim, "$1" ), context, results, seed );
}

/**
 * Create key-value caches of limited size
 * @returns {function(string, object)} Returns the Object data after storing it on itself with
 *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
 *	deleting the oldest entry
 */
function createCache() {
	var keys = [];

	function cache( key, value ) {

		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
		if ( keys.push( key + " " ) > Expr.cacheLength ) {

			// Only keep the most recent entries
			delete cache[ keys.shift() ];
		}
		return ( cache[ key + " " ] = value );
	}
	return cache;
}

/**
 * Mark a function for special use by Sizzle
 * @param {Function} fn The function to mark
 */
function markFunction( fn ) {
	fn[ expando ] = true;
	return fn;
}

/**
 * Support testing using an element
 * @param {Function} fn Passed the created element and returns a boolean result
 */
function assert( fn ) {
	var el = document.createElement( "fieldset" );

	try {
		return !!fn( el );
	} catch ( e ) {
		return false;
	} finally {

		// Remove from its parent by default
		if ( el.parentNode ) {
			el.parentNode.removeChild( el );
		}

		// release memory in IE
		el = null;
	}
}

/**
 * Adds the same handler for all of the specified attrs
 * @param {String} attrs Pipe-separated list of attributes
 * @param {Function} handler The method that will be applied
 */
function addHandle( attrs, handler ) {
	var arr = attrs.split( "|" ),
		i = arr.length;

	while ( i-- ) {
		Expr.attrHandle[ arr[ i ] ] = handler;
	}
}

/**
 * Checks document order of two siblings
 * @param {Element} a
 * @param {Element} b
 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
 */
function siblingCheck( a, b ) {
	var cur = b && a,
		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
			a.sourceIndex - b.sourceIndex;

	// Use IE sourceIndex if available on both nodes
	if ( diff ) {
		return diff;
	}

	// Check if b follows a
	if ( cur ) {
		while ( ( cur = cur.nextSibling ) ) {
			if ( cur === b ) {
				return -1;
			}
		}
	}

	return a ? 1 : -1;
}

/**
 * Returns a function to use in pseudos for input types
 * @param {String} type
 */
function createInputPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return name === "input" && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for buttons
 * @param {String} type
 */
function createButtonPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return ( name === "input" || name === "button" ) && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for :enabled/:disabled
 * @param {Boolean} disabled true for :disabled; false for :enabled
 */
function createDisabledPseudo( disabled ) {

	// Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
	return function( elem ) {

		// Only certain elements can match :enabled or :disabled
		// https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
		// https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
		if ( "form" in elem ) {

			// Check for inherited disabledness on relevant non-disabled elements:
			// * listed form-associated elements in a disabled fieldset
			//   https://html.spec.whatwg.org/multipage/forms.html#category-listed
			//   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
			// * option elements in a disabled optgroup
			//   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
			// All such elements have a "form" property.
			if ( elem.parentNode && elem.disabled === false ) {

				// Option elements defer to a parent optgroup if present
				if ( "label" in elem ) {
					if ( "label" in elem.parentNode ) {
						return elem.parentNode.disabled === disabled;
					} else {
						return elem.disabled === disabled;
					}
				}

				// Support: IE 6 - 11
				// Use the isDisabled shortcut property to check for disabled fieldset ancestors
				return elem.isDisabled === disabled ||

					// Where there is no isDisabled, check manually
					/* jshint -W018 */
					elem.isDisabled !== !disabled &&
					inDisabledFieldset( elem ) === disabled;
			}

			return elem.disabled === disabled;

		// Try to winnow out elements that can't be disabled before trusting the disabled property.
		// Some victims get caught in our net (label, legend, menu, track), but it shouldn't
		// even exist on them, let alone have a boolean value.
		} else if ( "label" in elem ) {
			return elem.disabled === disabled;
		}

		// Remaining elements are neither :enabled nor :disabled
		return false;
	};
}

/**
 * Returns a function to use in pseudos for positionals
 * @param {Function} fn
 */
function createPositionalPseudo( fn ) {
	return markFunction( function( argument ) {
		argument = +argument;
		return markFunction( function( seed, matches ) {
			var j,
				matchIndexes = fn( [], seed.length, argument ),
				i = matchIndexes.length;

			// Match elements found at the specified indexes
			while ( i-- ) {
				if ( seed[ ( j = matchIndexes[ i ] ) ] ) {
					seed[ j ] = !( matches[ j ] = seed[ j ] );
				}
			}
		} );
	} );
}

/**
 * Checks a node for validity as a Sizzle context
 * @param {Element|Object=} context
 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
 */
function testContext( context ) {
	return context && typeof context.getElementsByTagName !== "undefined" && context;
}

// Expose support vars for convenience
support = Sizzle.support = {};

/**
 * Detects XML nodes
 * @param {Element|Object} elem An element or a document
 * @returns {Boolean} True iff elem is a non-HTML XML node
 */
isXML = Sizzle.isXML = function( elem ) {
	var namespace = elem && elem.namespaceURI,
		docElem = elem && ( elem.ownerDocument || elem ).documentElement;

	// Support: IE <=8
	// Assume HTML when documentElement doesn't yet exist, such as inside loading iframes
	// https://bugs.jquery.com/ticket/4833
	return !rhtml.test( namespace || docElem && docElem.nodeName || "HTML" );
};

/**
 * Sets document-related variables once based on the current document
 * @param {Element|Object} [doc] An element or document object to use to set the document
 * @returns {Object} Returns the current document
 */
setDocument = Sizzle.setDocument = function( node ) {
	var hasCompare, subWindow,
		doc = node ? node.ownerDocument || node : preferredDoc;

	// Return early if doc is invalid or already selected
	// Support: IE 11+, Edge 17 - 18+
	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	if ( doc == document || doc.nodeType !== 9 || !doc.documentElement ) {
		return document;
	}

	// Update global variables
	document = doc;
	docElem = document.documentElement;
	documentIsHTML = !isXML( document );

	// Support: IE 9 - 11+, Edge 12 - 18+
	// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
	// Support: IE 11+, Edge 17 - 18+
	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	if ( preferredDoc != document &&
		( subWindow = document.defaultView ) && subWindow.top !== subWindow ) {

		// Support: IE 11, Edge
		if ( subWindow.addEventListener ) {
			subWindow.addEventListener( "unload", unloadHandler, false );

		// Support: IE 9 - 10 only
		} else if ( subWindow.attachEvent ) {
			subWindow.attachEvent( "onunload", unloadHandler );
		}
	}

	// Support: IE 8 - 11+, Edge 12 - 18+, Chrome <=16 - 25 only, Firefox <=3.6 - 31 only,
	// Safari 4 - 5 only, Opera <=11.6 - 12.x only
	// IE/Edge & older browsers don't support the :scope pseudo-class.
	// Support: Safari 6.0 only
	// Safari 6.0 supports :scope but it's an alias of :root there.
	support.scope = assert( function( el ) {
		docElem.appendChild( el ).appendChild( document.createElement( "div" ) );
		return typeof el.querySelectorAll !== "undefined" &&
			!el.querySelectorAll( ":scope fieldset div" ).length;
	} );

	/* Attributes
	---------------------------------------------------------------------- */

	// Support: IE<8
	// Verify that getAttribute really returns attributes and not properties
	// (excepting IE8 booleans)
	support.attributes = assert( function( el ) {
		el.className = "i";
		return !el.getAttribute( "className" );
	} );

	/* getElement(s)By*
	---------------------------------------------------------------------- */

	// Check if getElementsByTagName("*") returns only elements
	support.getElementsByTagName = assert( function( el ) {
		el.appendChild( document.createComment( "" ) );
		return !el.getElementsByTagName( "*" ).length;
	} );

	// Support: IE<9
	support.getElementsByClassName = rnative.test( document.getElementsByClassName );

	// Support: IE<10
	// Check if getElementById returns elements by name
	// The broken getElementById methods don't pick up programmatically-set names,
	// so use a roundabout getElementsByName test
	support.getById = assert( function( el ) {
		docElem.appendChild( el ).id = expando;
		return !document.getElementsByName || !document.getElementsByName( expando ).length;
	} );

	// ID filter and find
	if ( support.getById ) {
		Expr.filter[ "ID" ] = function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				return elem.getAttribute( "id" ) === attrId;
			};
		};
		Expr.find[ "ID" ] = function( id, context ) {
			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
				var elem = context.getElementById( id );
				return elem ? [ elem ] : [];
			}
		};
	} else {
		Expr.filter[ "ID" ] =  function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				var node = typeof elem.getAttributeNode !== "undefined" &&
					elem.getAttributeNode( "id" );
				return node && node.value === attrId;
			};
		};

		// Support: IE 6 - 7 only
		// getElementById is not reliable as a find shortcut
		Expr.find[ "ID" ] = function( id, context ) {
			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
				var node, i, elems,
					elem = context.getElementById( id );

				if ( elem ) {

					// Verify the id attribute
					node = elem.getAttributeNode( "id" );
					if ( node && node.value === id ) {
						return [ elem ];
					}

					// Fall back on getElementsByName
					elems = context.getElementsByName( id );
					i = 0;
					while ( ( elem = elems[ i++ ] ) ) {
						node = elem.getAttributeNode( "id" );
						if ( node && node.value === id ) {
							return [ elem ];
						}
					}
				}

				return [];
			}
		};
	}

	// Tag
	Expr.find[ "TAG" ] = support.getElementsByTagName ?
		function( tag, context ) {
			if ( typeof context.getElementsByTagName !== "undefined" ) {
				return context.getElementsByTagName( tag );

			// DocumentFragment nodes don't have gEBTN
			} else if ( support.qsa ) {
				return context.querySelectorAll( tag );
			}
		} :

		function( tag, context ) {
			var elem,
				tmp = [],
				i = 0,

				// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
				results = context.getElementsByTagName( tag );

			// Filter out possible comments
			if ( tag === "*" ) {
				while ( ( elem = results[ i++ ] ) ) {
					if ( elem.nodeType === 1 ) {
						tmp.push( elem );
					}
				}

				return tmp;
			}
			return results;
		};

	// Class
	Expr.find[ "CLASS" ] = support.getElementsByClassName && function( className, context ) {
		if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
			return context.getElementsByClassName( className );
		}
	};

	/* QSA/matchesSelector
	---------------------------------------------------------------------- */

	// QSA and matchesSelector support

	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
	rbuggyMatches = [];

	// qSa(:focus) reports false when true (Chrome 21)
	// We allow this because of a bug in IE8/9 that throws an error
	// whenever `document.activeElement` is accessed on an iframe
	// So, we allow :focus to pass through QSA all the time to avoid the IE error
	// See https://bugs.jquery.com/ticket/13378
	rbuggyQSA = [];

	if ( ( support.qsa = rnative.test( document.querySelectorAll ) ) ) {

		// Build QSA regex
		// Regex strategy adopted from Diego Perini
		assert( function( el ) {

			var input;

			// Select is set to empty string on purpose
			// This is to test IE's treatment of not explicitly
			// setting a boolean content attribute,
			// since its presence should be enough
			// https://bugs.jquery.com/ticket/12359
			docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
				"<select id='" + expando + "-\r\\' msallowcapture=''>" +
				"<option selected=''></option></select>";

			// Support: IE8, Opera 11-12.16
			// Nothing should be selected when empty strings follow ^= or $= or *=
			// The test attribute must be unknown in Opera but "safe" for WinRT
			// https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
			if ( el.querySelectorAll( "[msallowcapture^='']" ).length ) {
				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
			}

			// Support: IE8
			// Boolean attributes and "value" are not treated correctly
			if ( !el.querySelectorAll( "[selected]" ).length ) {
				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
			}

			// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
			if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
				rbuggyQSA.push( "~=" );
			}

			// Support: IE 11+, Edge 15 - 18+
			// IE 11/Edge don't find elements on a `[name='']` query in some cases.
			// Adding a temporary attribute to the document before the selection works
			// around the issue.
			// Interestingly, IE 10 & older don't seem to have the issue.
			input = document.createElement( "input" );
			input.setAttribute( "name", "" );
			el.appendChild( input );
			if ( !el.querySelectorAll( "[name='']" ).length ) {
				rbuggyQSA.push( "\\[" + whitespace + "*name" + whitespace + "*=" +
					whitespace + "*(?:''|\"\")" );
			}

			// Webkit/Opera - :checked should return selected option elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			// IE8 throws error here and will not see later tests
			if ( !el.querySelectorAll( ":checked" ).length ) {
				rbuggyQSA.push( ":checked" );
			}

			// Support: Safari 8+, iOS 8+
			// https://bugs.webkit.org/show_bug.cgi?id=136851
			// In-page `selector#id sibling-combinator selector` fails
			if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
				rbuggyQSA.push( ".#.+[+~]" );
			}

			// Support: Firefox <=3.6 - 5 only
			// Old Firefox doesn't throw on a badly-escaped identifier.
			el.querySelectorAll( "\\\f" );
			rbuggyQSA.push( "[\\r\\n\\f]" );
		} );

		assert( function( el ) {
			el.innerHTML = "<a href='' disabled='disabled'></a>" +
				"<select disabled='disabled'><option/></select>";

			// Support: Windows 8 Native Apps
			// The type and name attributes are restricted during .innerHTML assignment
			var input = document.createElement( "input" );
			input.setAttribute( "type", "hidden" );
			el.appendChild( input ).setAttribute( "name", "D" );

			// Support: IE8
			// Enforce case-sensitivity of name attribute
			if ( el.querySelectorAll( "[name=d]" ).length ) {
				rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
			}

			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
			// IE8 throws error here and will not see later tests
			if ( el.querySelectorAll( ":enabled" ).length !== 2 ) {
				rbuggyQSA.push( ":enabled", ":disabled" );
			}

			// Support: IE9-11+
			// IE's :disabled selector does not pick up the children of disabled fieldsets
			docElem.appendChild( el ).disabled = true;
			if ( el.querySelectorAll( ":disabled" ).length !== 2 ) {
				rbuggyQSA.push( ":enabled", ":disabled" );
			}

			// Support: Opera 10 - 11 only
			// Opera 10-11 does not throw on post-comma invalid pseudos
			el.querySelectorAll( "*,:x" );
			rbuggyQSA.push( ",.*:" );
		} );
	}

	if ( ( support.matchesSelector = rnative.test( ( matches = docElem.matches ||
		docElem.webkitMatchesSelector ||
		docElem.mozMatchesSelector ||
		docElem.oMatchesSelector ||
		docElem.msMatchesSelector ) ) ) ) {

		assert( function( el ) {

			// Check to see if it's possible to do matchesSelector
			// on a disconnected node (IE 9)
			support.disconnectedMatch = matches.call( el, "*" );

			// This should fail with an exception
			// Gecko does not error, returns false instead
			matches.call( el, "[s!='']:x" );
			rbuggyMatches.push( "!=", pseudos );
		} );
	}

	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join( "|" ) );
	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join( "|" ) );

	/* Contains
	---------------------------------------------------------------------- */
	hasCompare = rnative.test( docElem.compareDocumentPosition );

	// Element contains another
	// Purposefully self-exclusive
	// As in, an element does not contain itself
	contains = hasCompare || rnative.test( docElem.contains ) ?
		function( a, b ) {
			var adown = a.nodeType === 9 ? a.documentElement : a,
				bup = b && b.parentNode;
			return a === bup || !!( bup && bup.nodeType === 1 && (
				adown.contains ?
					adown.contains( bup ) :
					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
			) );
		} :
		function( a, b ) {
			if ( b ) {
				while ( ( b = b.parentNode ) ) {
					if ( b === a ) {
						return true;
					}
				}
			}
			return false;
		};

	/* Sorting
	---------------------------------------------------------------------- */

	// Document order sorting
	sortOrder = hasCompare ?
	function( a, b ) {

		// Flag for duplicate removal
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		// Sort on method existence if only one input has compareDocumentPosition
		var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
		if ( compare ) {
			return compare;
		}

		// Calculate position if both inputs belong to the same document
		// Support: IE 11+, Edge 17 - 18+
		// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
		// two documents; shallow comparisons work.
		// eslint-disable-next-line eqeqeq
		compare = ( a.ownerDocument || a ) == ( b.ownerDocument || b ) ?
			a.compareDocumentPosition( b ) :

			// Otherwise we know they are disconnected
			1;

		// Disconnected nodes
		if ( compare & 1 ||
			( !support.sortDetached && b.compareDocumentPosition( a ) === compare ) ) {

			// Choose the first element that is related to our preferred document
			// Support: IE 11+, Edge 17 - 18+
			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
			// two documents; shallow comparisons work.
			// eslint-disable-next-line eqeqeq
			if ( a == document || a.ownerDocument == preferredDoc &&
				contains( preferredDoc, a ) ) {
				return -1;
			}

			// Support: IE 11+, Edge 17 - 18+
			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
			// two documents; shallow comparisons work.
			// eslint-disable-next-line eqeqeq
			if ( b == document || b.ownerDocument == preferredDoc &&
				contains( preferredDoc, b ) ) {
				return 1;
			}

			// Maintain original order
			return sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;
		}

		return compare & 4 ? -1 : 1;
	} :
	function( a, b ) {

		// Exit early if the nodes are identical
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		var cur,
			i = 0,
			aup = a.parentNode,
			bup = b.parentNode,
			ap = [ a ],
			bp = [ b ];

		// Parentless nodes are either documents or disconnected
		if ( !aup || !bup ) {

			// Support: IE 11+, Edge 17 - 18+
			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
			// two documents; shallow comparisons work.
			/* eslint-disable eqeqeq */
			return a == document ? -1 :
				b == document ? 1 :
				/* eslint-enable eqeqeq */
				aup ? -1 :
				bup ? 1 :
				sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;

		// If the nodes are siblings, we can do a quick check
		} else if ( aup === bup ) {
			return siblingCheck( a, b );
		}

		// Otherwise we need full lists of their ancestors for comparison
		cur = a;
		while ( ( cur = cur.parentNode ) ) {
			ap.unshift( cur );
		}
		cur = b;
		while ( ( cur = cur.parentNode ) ) {
			bp.unshift( cur );
		}

		// Walk down the tree looking for a discrepancy
		while ( ap[ i ] === bp[ i ] ) {
			i++;
		}

		return i ?

			// Do a sibling check if the nodes have a common ancestor
			siblingCheck( ap[ i ], bp[ i ] ) :

			// Otherwise nodes in our document sort first
			// Support: IE 11+, Edge 17 - 18+
			// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
			// two documents; shallow comparisons work.
			/* eslint-disable eqeqeq */
			ap[ i ] == preferredDoc ? -1 :
			bp[ i ] == preferredDoc ? 1 :
			/* eslint-enable eqeqeq */
			0;
	};

	return document;
};

Sizzle.matches = function( expr, elements ) {
	return Sizzle( expr, null, null, elements );
};

Sizzle.matchesSelector = function( elem, expr ) {
	setDocument( elem );

	if ( support.matchesSelector && documentIsHTML &&
		!nonnativeSelectorCache[ expr + " " ] &&
		( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
		( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {

		try {
			var ret = matches.call( elem, expr );

			// IE 9's matchesSelector returns false on disconnected nodes
			if ( ret || support.disconnectedMatch ||

				// As well, disconnected nodes are said to be in a document
				// fragment in IE 9
				elem.document && elem.document.nodeType !== 11 ) {
				return ret;
			}
		} catch ( e ) {
			nonnativeSelectorCache( expr, true );
		}
	}

	return Sizzle( expr, document, null, [ elem ] ).length > 0;
};

Sizzle.contains = function( context, elem ) {

	// Set document vars if needed
	// Support: IE 11+, Edge 17 - 18+
	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	if ( ( context.ownerDocument || context ) != document ) {
		setDocument( context );
	}
	return contains( context, elem );
};

Sizzle.attr = function( elem, name ) {

	// Set document vars if needed
	// Support: IE 11+, Edge 17 - 18+
	// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
	// two documents; shallow comparisons work.
	// eslint-disable-next-line eqeqeq
	if ( ( elem.ownerDocument || elem ) != document ) {
		setDocument( elem );
	}

	var fn = Expr.attrHandle[ name.toLowerCase() ],

		// Don't get fooled by Object.prototype properties (jQuery #13807)
		val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
			fn( elem, name, !documentIsHTML ) :
			undefined;

	return val !== undefined ?
		val :
		support.attributes || !documentIsHTML ?
			elem.getAttribute( name ) :
			( val = elem.getAttributeNode( name ) ) && val.specified ?
				val.value :
				null;
};

Sizzle.escape = function( sel ) {
	return ( sel + "" ).replace( rcssescape, fcssescape );
};

Sizzle.error = function( msg ) {
	throw new Error( "Syntax error, unrecognized expression: " + msg );
};

/**
 * Document sorting and removing duplicates
 * @param {ArrayLike} results
 */
Sizzle.uniqueSort = function( results ) {
	var elem,
		duplicates = [],
		j = 0,
		i = 0;

	// Unless we *know* we can detect duplicates, assume their presence
	hasDuplicate = !support.detectDuplicates;
	sortInput = !support.sortStable && results.slice( 0 );
	results.sort( sortOrder );

	if ( hasDuplicate ) {
		while ( ( elem = results[ i++ ] ) ) {
			if ( elem === results[ i ] ) {
				j = duplicates.push( i );
			}
		}
		while ( j-- ) {
			results.splice( duplicates[ j ], 1 );
		}
	}

	// Clear input after sorting to release objects
	// See https://github.com/jquery/sizzle/pull/225
	sortInput = null;

	return results;
};

/**
 * Utility function for retrieving the text value of an array of DOM nodes
 * @param {Array|Element} elem
 */
getText = Sizzle.getText = function( elem ) {
	var node,
		ret = "",
		i = 0,
		nodeType = elem.nodeType;

	if ( !nodeType ) {

		// If no nodeType, this is expected to be an array
		while ( ( node = elem[ i++ ] ) ) {

			// Do not traverse comment nodes
			ret += getText( node );
		}
	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {

		// Use textContent for elements
		// innerText usage removed for consistency of new lines (jQuery #11153)
		if ( typeof elem.textContent === "string" ) {
			return elem.textContent;
		} else {

			// Traverse its children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				ret += getText( elem );
			}
		}
	} else if ( nodeType === 3 || nodeType === 4 ) {
		return elem.nodeValue;
	}

	// Do not include comment or processing instruction nodes

	return ret;
};

Expr = Sizzle.selectors = {

	// Can be adjusted by the user
	cacheLength: 50,

	createPseudo: markFunction,

	match: matchExpr,

	attrHandle: {},

	find: {},

	relative: {
		">": { dir: "parentNode", first: true },
		" ": { dir: "parentNode" },
		"+": { dir: "previousSibling", first: true },
		"~": { dir: "previousSibling" }
	},

	preFilter: {
		"ATTR": function( match ) {
			match[ 1 ] = match[ 1 ].replace( runescape, funescape );

			// Move the given value to match[3] whether quoted or unquoted
			match[ 3 ] = ( match[ 3 ] || match[ 4 ] ||
				match[ 5 ] || "" ).replace( runescape, funescape );

			if ( match[ 2 ] === "~=" ) {
				match[ 3 ] = " " + match[ 3 ] + " ";
			}

			return match.slice( 0, 4 );
		},

		"CHILD": function( match ) {

			/* matches from matchExpr["CHILD"]
				1 type (only|nth|...)
				2 what (child|of-type)
				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
				4 xn-component of xn+y argument ([+-]?\d*n|)
				5 sign of xn-component
				6 x of xn-component
				7 sign of y-component
				8 y of y-component
			*/
			match[ 1 ] = match[ 1 ].toLowerCase();

			if ( match[ 1 ].slice( 0, 3 ) === "nth" ) {

				// nth-* requires argument
				if ( !match[ 3 ] ) {
					Sizzle.error( match[ 0 ] );
				}

				// numeric x and y parameters for Expr.filter.CHILD
				// remember that false/true cast respectively to 0/1
				match[ 4 ] = +( match[ 4 ] ?
					match[ 5 ] + ( match[ 6 ] || 1 ) :
					2 * ( match[ 3 ] === "even" || match[ 3 ] === "odd" ) );
				match[ 5 ] = +( ( match[ 7 ] + match[ 8 ] ) || match[ 3 ] === "odd" );

				// other types prohibit arguments
			} else if ( match[ 3 ] ) {
				Sizzle.error( match[ 0 ] );
			}

			return match;
		},

		"PSEUDO": function( match ) {
			var excess,
				unquoted = !match[ 6 ] && match[ 2 ];

			if ( matchExpr[ "CHILD" ].test( match[ 0 ] ) ) {
				return null;
			}

			// Accept quoted arguments as-is
			if ( match[ 3 ] ) {
				match[ 2 ] = match[ 4 ] || match[ 5 ] || "";

			// Strip excess characters from unquoted arguments
			} else if ( unquoted && rpseudo.test( unquoted ) &&

				// Get excess from tokenize (recursively)
				( excess = tokenize( unquoted, true ) ) &&

				// advance to the next closing parenthesis
				( excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length ) ) {

				// excess is a negative index
				match[ 0 ] = match[ 0 ].slice( 0, excess );
				match[ 2 ] = unquoted.slice( 0, excess );
			}

			// Return only captures needed by the pseudo filter method (type and argument)
			return match.slice( 0, 3 );
		}
	},

	filter: {

		"TAG": function( nodeNameSelector ) {
			var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
			return nodeNameSelector === "*" ?
				function() {
					return true;
				} :
				function( elem ) {
					return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
				};
		},

		"CLASS": function( className ) {
			var pattern = classCache[ className + " " ];

			return pattern ||
				( pattern = new RegExp( "(^|" + whitespace +
					")" + className + "(" + whitespace + "|$)" ) ) && classCache(
						className, function( elem ) {
							return pattern.test(
								typeof elem.className === "string" && elem.className ||
								typeof elem.getAttribute !== "undefined" &&
									elem.getAttribute( "class" ) ||
								""
							);
				} );
		},

		"ATTR": function( name, operator, check ) {
			return function( elem ) {
				var result = Sizzle.attr( elem, name );

				if ( result == null ) {
					return operator === "!=";
				}
				if ( !operator ) {
					return true;
				}

				result += "";

				/* eslint-disable max-len */

				return operator === "=" ? result === check :
					operator === "!=" ? result !== check :
					operator === "^=" ? check && result.indexOf( check ) === 0 :
					operator === "*=" ? check && result.indexOf( check ) > -1 :
					operator === "$=" ? check && result.slice( -check.length ) === check :
					operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
					false;
				/* eslint-enable max-len */

			};
		},

		"CHILD": function( type, what, _argument, first, last ) {
			var simple = type.slice( 0, 3 ) !== "nth",
				forward = type.slice( -4 ) !== "last",
				ofType = what === "of-type";

			return first === 1 && last === 0 ?

				// Shortcut for :nth-*(n)
				function( elem ) {
					return !!elem.parentNode;
				} :

				function( elem, _context, xml ) {
					var cache, uniqueCache, outerCache, node, nodeIndex, start,
						dir = simple !== forward ? "nextSibling" : "previousSibling",
						parent = elem.parentNode,
						name = ofType && elem.nodeName.toLowerCase(),
						useCache = !xml && !ofType,
						diff = false;

					if ( parent ) {

						// :(first|last|only)-(child|of-type)
						if ( simple ) {
							while ( dir ) {
								node = elem;
								while ( ( node = node[ dir ] ) ) {
									if ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) {

										return false;
									}
								}

								// Reverse direction for :only-* (if we haven't yet done so)
								start = dir = type === "only" && !start && "nextSibling";
							}
							return true;
						}

						start = [ forward ? parent.firstChild : parent.lastChild ];

						// non-xml :nth-child(...) stores cache data on `parent`
						if ( forward && useCache ) {

							// Seek `elem` from a previously-cached index

							// ...in a gzip-friendly way
							node = parent;
							outerCache = node[ expando ] || ( node[ expando ] = {} );

							// Support: IE <9 only
							// Defend against cloned attroperties (jQuery gh-1709)
							uniqueCache = outerCache[ node.uniqueID ] ||
								( outerCache[ node.uniqueID ] = {} );

							cache = uniqueCache[ type ] || [];
							nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
							diff = nodeIndex && cache[ 2 ];
							node = nodeIndex && parent.childNodes[ nodeIndex ];

							while ( ( node = ++nodeIndex && node && node[ dir ] ||

								// Fallback to seeking `elem` from the start
								( diff = nodeIndex = 0 ) || start.pop() ) ) {

								// When found, cache indexes on `parent` and break
								if ( node.nodeType === 1 && ++diff && node === elem ) {
									uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
									break;
								}
							}

						} else {

							// Use previously-cached element index if available
							if ( useCache ) {

								// ...in a gzip-friendly way
								node = elem;
								outerCache = node[ expando ] || ( node[ expando ] = {} );

								// Support: IE <9 only
								// Defend against cloned attroperties (jQuery gh-1709)
								uniqueCache = outerCache[ node.uniqueID ] ||
									( outerCache[ node.uniqueID ] = {} );

								cache = uniqueCache[ type ] || [];
								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
								diff = nodeIndex;
							}

							// xml :nth-child(...)
							// or :nth-last-child(...) or :nth(-last)?-of-type(...)
							if ( diff === false ) {

								// Use the same loop as above to seek `elem` from the start
								while ( ( node = ++nodeIndex && node && node[ dir ] ||
									( diff = nodeIndex = 0 ) || start.pop() ) ) {

									if ( ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) &&
										++diff ) {

										// Cache the index of each encountered element
										if ( useCache ) {
											outerCache = node[ expando ] ||
												( node[ expando ] = {} );

											// Support: IE <9 only
											// Defend against cloned attroperties (jQuery gh-1709)
											uniqueCache = outerCache[ node.uniqueID ] ||
												( outerCache[ node.uniqueID ] = {} );

											uniqueCache[ type ] = [ dirruns, diff ];
										}

										if ( node === elem ) {
											break;
										}
									}
								}
							}
						}

						// Incorporate the offset, then check against cycle size
						diff -= last;
						return diff === first || ( diff % first === 0 && diff / first >= 0 );
					}
				};
		},

		"PSEUDO": function( pseudo, argument ) {

			// pseudo-class names are case-insensitive
			// http://www.w3.org/TR/selectors/#pseudo-classes
			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
			// Remember that setFilters inherits from pseudos
			var args,
				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
					Sizzle.error( "unsupported pseudo: " + pseudo );

			// The user may use createPseudo to indicate that
			// arguments are needed to create the filter function
			// just as Sizzle does
			if ( fn[ expando ] ) {
				return fn( argument );
			}

			// But maintain support for old signatures
			if ( fn.length > 1 ) {
				args = [ pseudo, pseudo, "", argument ];
				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
					markFunction( function( seed, matches ) {
						var idx,
							matched = fn( seed, argument ),
							i = matched.length;
						while ( i-- ) {
							idx = indexOf( seed, matched[ i ] );
							seed[ idx ] = !( matches[ idx ] = matched[ i ] );
						}
					} ) :
					function( elem ) {
						return fn( elem, 0, args );
					};
			}

			return fn;
		}
	},

	pseudos: {

		// Potentially complex pseudos
		"not": markFunction( function( selector ) {

			// Trim the selector passed to compile
			// to avoid treating leading and trailing
			// spaces as combinators
			var input = [],
				results = [],
				matcher = compile( selector.replace( rtrim, "$1" ) );

			return matcher[ expando ] ?
				markFunction( function( seed, matches, _context, xml ) {
					var elem,
						unmatched = matcher( seed, null, xml, [] ),
						i = seed.length;

					// Match elements unmatched by `matcher`
					while ( i-- ) {
						if ( ( elem = unmatched[ i ] ) ) {
							seed[ i ] = !( matches[ i ] = elem );
						}
					}
				} ) :
				function( elem, _context, xml ) {
					input[ 0 ] = elem;
					matcher( input, null, xml, results );

					// Don't keep the element (issue #299)
					input[ 0 ] = null;
					return !results.pop();
				};
		} ),

		"has": markFunction( function( selector ) {
			return function( elem ) {
				return Sizzle( selector, elem ).length > 0;
			};
		} ),

		"contains": markFunction( function( text ) {
			text = text.replace( runescape, funescape );
			return function( elem ) {
				return ( elem.textContent || getText( elem ) ).indexOf( text ) > -1;
			};
		} ),

		// "Whether an element is represented by a :lang() selector
		// is based solely on the element's language value
		// being equal to the identifier C,
		// or beginning with the identifier C immediately followed by "-".
		// The matching of C against the element's language value is performed case-insensitively.
		// The identifier C does not have to be a valid language name."
		// http://www.w3.org/TR/selectors/#lang-pseudo
		"lang": markFunction( function( lang ) {

			// lang value must be a valid identifier
			if ( !ridentifier.test( lang || "" ) ) {
				Sizzle.error( "unsupported lang: " + lang );
			}
			lang = lang.replace( runescape, funescape ).toLowerCase();
			return function( elem ) {
				var elemLang;
				do {
					if ( ( elemLang = documentIsHTML ?
						elem.lang :
						elem.getAttribute( "xml:lang" ) || elem.getAttribute( "lang" ) ) ) {

						elemLang = elemLang.toLowerCase();
						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
					}
				} while ( ( elem = elem.parentNode ) && elem.nodeType === 1 );
				return false;
			};
		} ),

		// Miscellaneous
		"target": function( elem ) {
			var hash = window.location && window.location.hash;
			return hash && hash.slice( 1 ) === elem.id;
		},

		"root": function( elem ) {
			return elem === docElem;
		},

		"focus": function( elem ) {
			return elem === document.activeElement &&
				( !document.hasFocus || document.hasFocus() ) &&
				!!( elem.type || elem.href || ~elem.tabIndex );
		},

		// Boolean properties
		"enabled": createDisabledPseudo( false ),
		"disabled": createDisabledPseudo( true ),

		"checked": function( elem ) {

			// In CSS3, :checked should return both checked and selected elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			var nodeName = elem.nodeName.toLowerCase();
			return ( nodeName === "input" && !!elem.checked ) ||
				( nodeName === "option" && !!elem.selected );
		},

		"selected": function( elem ) {

			// Accessing this property makes selected-by-default
			// options in Safari work properly
			if ( elem.parentNode ) {
				// eslint-disable-next-line no-unused-expressions
				elem.parentNode.selectedIndex;
			}

			return elem.selected === true;
		},

		// Contents
		"empty": function( elem ) {

			// http://www.w3.org/TR/selectors/#empty-pseudo
			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
			//   but not by others (comment: 8; processing instruction: 7; etc.)
			// nodeType < 6 works because attributes (2) do not appear as children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				if ( elem.nodeType < 6 ) {
					return false;
				}
			}
			return true;
		},

		"parent": function( elem ) {
			return !Expr.pseudos[ "empty" ]( elem );
		},

		// Element/input types
		"header": function( elem ) {
			return rheader.test( elem.nodeName );
		},

		"input": function( elem ) {
			return rinputs.test( elem.nodeName );
		},

		"button": function( elem ) {
			var name = elem.nodeName.toLowerCase();
			return name === "input" && elem.type === "button" || name === "button";
		},

		"text": function( elem ) {
			var attr;
			return elem.nodeName.toLowerCase() === "input" &&
				elem.type === "text" &&

				// Support: IE<8
				// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
				( ( attr = elem.getAttribute( "type" ) ) == null ||
					attr.toLowerCase() === "text" );
		},

		// Position-in-collection
		"first": createPositionalPseudo( function() {
			return [ 0 ];
		} ),

		"last": createPositionalPseudo( function( _matchIndexes, length ) {
			return [ length - 1 ];
		} ),

		"eq": createPositionalPseudo( function( _matchIndexes, length, argument ) {
			return [ argument < 0 ? argument + length : argument ];
		} ),

		"even": createPositionalPseudo( function( matchIndexes, length ) {
			var i = 0;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		} ),

		"odd": createPositionalPseudo( function( matchIndexes, length ) {
			var i = 1;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		} ),

		"lt": createPositionalPseudo( function( matchIndexes, length, argument ) {
			var i = argument < 0 ?
				argument + length :
				argument > length ?
					length :
					argument;
			for ( ; --i >= 0; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		} ),

		"gt": createPositionalPseudo( function( matchIndexes, length, argument ) {
			var i = argument < 0 ? argument + length : argument;
			for ( ; ++i < length; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		} )
	}
};

Expr.pseudos[ "nth" ] = Expr.pseudos[ "eq" ];

// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
	Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {
	Expr.pseudos[ i ] = createButtonPseudo( i );
}

// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();

tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
	var matched, match, tokens, type,
		soFar, groups, preFilters,
		cached = tokenCache[ selector + " " ];

	if ( cached ) {
		return parseOnly ? 0 : cached.slice( 0 );
	}

	soFar = selector;
	groups = [];
	preFilters = Expr.preFilter;

	while ( soFar ) {

		// Comma and first run
		if ( !matched || ( match = rcomma.exec( soFar ) ) ) {
			if ( match ) {

				// Don't consume trailing commas as valid
				soFar = soFar.slice( match[ 0 ].length ) || soFar;
			}
			groups.push( ( tokens = [] ) );
		}

		matched = false;

		// Combinators
		if ( ( match = rcombinators.exec( soFar ) ) ) {
			matched = match.shift();
			tokens.push( {
				value: matched,

				// Cast descendant combinators to space
				type: match[ 0 ].replace( rtrim, " " )
			} );
			soFar = soFar.slice( matched.length );
		}

		// Filters
		for ( type in Expr.filter ) {
			if ( ( match = matchExpr[ type ].exec( soFar ) ) && ( !preFilters[ type ] ||
				( match = preFilters[ type ]( match ) ) ) ) {
				matched = match.shift();
				tokens.push( {
					value: matched,
					type: type,
					matches: match
				} );
				soFar = soFar.slice( matched.length );
			}
		}

		if ( !matched ) {
			break;
		}
	}

	// Return the length of the invalid excess
	// if we're just parsing
	// Otherwise, throw an error or return tokens
	return parseOnly ?
		soFar.length :
		soFar ?
			Sizzle.error( selector ) :

			// Cache the tokens
			tokenCache( selector, groups ).slice( 0 );
};

function toSelector( tokens ) {
	var i = 0,
		len = tokens.length,
		selector = "";
	for ( ; i < len; i++ ) {
		selector += tokens[ i ].value;
	}
	return selector;
}

function addCombinator( matcher, combinator, base ) {
	var dir = combinator.dir,
		skip = combinator.next,
		key = skip || dir,
		checkNonElements = base && key === "parentNode",
		doneName = done++;

	return combinator.first ?

		// Check against closest ancestor/preceding element
		function( elem, context, xml ) {
			while ( ( elem = elem[ dir ] ) ) {
				if ( elem.nodeType === 1 || checkNonElements ) {
					return matcher( elem, context, xml );
				}
			}
			return false;
		} :

		// Check against all ancestor/preceding elements
		function( elem, context, xml ) {
			var oldCache, uniqueCache, outerCache,
				newCache = [ dirruns, doneName ];

			// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
			if ( xml ) {
				while ( ( elem = elem[ dir ] ) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						if ( matcher( elem, context, xml ) ) {
							return true;
						}
					}
				}
			} else {
				while ( ( elem = elem[ dir ] ) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						outerCache = elem[ expando ] || ( elem[ expando ] = {} );

						// Support: IE <9 only
						// Defend against cloned attroperties (jQuery gh-1709)
						uniqueCache = outerCache[ elem.uniqueID ] ||
							( outerCache[ elem.uniqueID ] = {} );

						if ( skip && skip === elem.nodeName.toLowerCase() ) {
							elem = elem[ dir ] || elem;
						} else if ( ( oldCache = uniqueCache[ key ] ) &&
							oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {

							// Assign to newCache so results back-propagate to previous elements
							return ( newCache[ 2 ] = oldCache[ 2 ] );
						} else {

							// Reuse newcache so results back-propagate to previous elements
							uniqueCache[ key ] = newCache;

							// A match means we're done; a fail means we have to keep checking
							if ( ( newCache[ 2 ] = matcher( elem, context, xml ) ) ) {
								return true;
							}
						}
					}
				}
			}
			return false;
		};
}

function elementMatcher( matchers ) {
	return matchers.length > 1 ?
		function( elem, context, xml ) {
			var i = matchers.length;
			while ( i-- ) {
				if ( !matchers[ i ]( elem, context, xml ) ) {
					return false;
				}
			}
			return true;
		} :
		matchers[ 0 ];
}

function multipleContexts( selector, contexts, results ) {
	var i = 0,
		len = contexts.length;
	for ( ; i < len; i++ ) {
		Sizzle( selector, contexts[ i ], results );
	}
	return results;
}

function condense( unmatched, map, filter, context, xml ) {
	var elem,
		newUnmatched = [],
		i = 0,
		len = unmatched.length,
		mapped = map != null;

	for ( ; i < len; i++ ) {
		if ( ( elem = unmatched[ i ] ) ) {
			if ( !filter || filter( elem, context, xml ) ) {
				newUnmatched.push( elem );
				if ( mapped ) {
					map.push( i );
				}
			}
		}
	}

	return newUnmatched;
}

function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
	if ( postFilter && !postFilter[ expando ] ) {
		postFilter = setMatcher( postFilter );
	}
	if ( postFinder && !postFinder[ expando ] ) {
		postFinder = setMatcher( postFinder, postSelector );
	}
	return markFunction( function( seed, results, context, xml ) {
		var temp, i, elem,
			preMap = [],
			postMap = [],
			preexisting = results.length,

			// Get initial elements from seed or context
			elems = seed || multipleContexts(
				selector || "*",
				context.nodeType ? [ context ] : context,
				[]
			),

			// Prefilter to get matcher input, preserving a map for seed-results synchronization
			matcherIn = preFilter && ( seed || !selector ) ?
				condense( elems, preMap, preFilter, context, xml ) :
				elems,

			matcherOut = matcher ?

				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?

					// ...intermediate processing is necessary
					[] :

					// ...otherwise use results directly
					results :
				matcherIn;

		// Find primary matches
		if ( matcher ) {
			matcher( matcherIn, matcherOut, context, xml );
		}

		// Apply postFilter
		if ( postFilter ) {
			temp = condense( matcherOut, postMap );
			postFilter( temp, [], context, xml );

			// Un-match failing elements by moving them back to matcherIn
			i = temp.length;
			while ( i-- ) {
				if ( ( elem = temp[ i ] ) ) {
					matcherOut[ postMap[ i ] ] = !( matcherIn[ postMap[ i ] ] = elem );
				}
			}
		}

		if ( seed ) {
			if ( postFinder || preFilter ) {
				if ( postFinder ) {

					// Get the final matcherOut by condensing this intermediate into postFinder contexts
					temp = [];
					i = matcherOut.length;
					while ( i-- ) {
						if ( ( elem = matcherOut[ i ] ) ) {

							// Restore matcherIn since elem is not yet a final match
							temp.push( ( matcherIn[ i ] = elem ) );
						}
					}
					postFinder( null, ( matcherOut = [] ), temp, xml );
				}

				// Move matched elements from seed to results to keep them synchronized
				i = matcherOut.length;
				while ( i-- ) {
					if ( ( elem = matcherOut[ i ] ) &&
						( temp = postFinder ? indexOf( seed, elem ) : preMap[ i ] ) > -1 ) {

						seed[ temp ] = !( results[ temp ] = elem );
					}
				}
			}

		// Add elements to results, through postFinder if defined
		} else {
			matcherOut = condense(
				matcherOut === results ?
					matcherOut.splice( preexisting, matcherOut.length ) :
					matcherOut
			);
			if ( postFinder ) {
				postFinder( null, results, matcherOut, xml );
			} else {
				push.apply( results, matcherOut );
			}
		}
	} );
}

function matcherFromTokens( tokens ) {
	var checkContext, matcher, j,
		len = tokens.length,
		leadingRelative = Expr.relative[ tokens[ 0 ].type ],
		implicitRelative = leadingRelative || Expr.relative[ " " ],
		i = leadingRelative ? 1 : 0,

		// The foundational matcher ensures that elements are reachable from top-level context(s)
		matchContext = addCombinator( function( elem ) {
			return elem === checkContext;
		}, implicitRelative, true ),
		matchAnyContext = addCombinator( function( elem ) {
			return indexOf( checkContext, elem ) > -1;
		}, implicitRelative, true ),
		matchers = [ function( elem, context, xml ) {
			var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
				( checkContext = context ).nodeType ?
					matchContext( elem, context, xml ) :
					matchAnyContext( elem, context, xml ) );

			// Avoid hanging onto element (issue #299)
			checkContext = null;
			return ret;
		} ];

	for ( ; i < len; i++ ) {
		if ( ( matcher = Expr.relative[ tokens[ i ].type ] ) ) {
			matchers = [ addCombinator( elementMatcher( matchers ), matcher ) ];
		} else {
			matcher = Expr.filter[ tokens[ i ].type ].apply( null, tokens[ i ].matches );

			// Return special upon seeing a positional matcher
			if ( matcher[ expando ] ) {

				// Find the next relative operator (if any) for proper handling
				j = ++i;
				for ( ; j < len; j++ ) {
					if ( Expr.relative[ tokens[ j ].type ] ) {
						break;
					}
				}
				return setMatcher(
					i > 1 && elementMatcher( matchers ),
					i > 1 && toSelector(

					// If the preceding token was a descendant combinator, insert an implicit any-element `*`
					tokens
						.slice( 0, i - 1 )
						.concat( { value: tokens[ i - 2 ].type === " " ? "*" : "" } )
					).replace( rtrim, "$1" ),
					matcher,
					i < j && matcherFromTokens( tokens.slice( i, j ) ),
					j < len && matcherFromTokens( ( tokens = tokens.slice( j ) ) ),
					j < len && toSelector( tokens )
				);
			}
			matchers.push( matcher );
		}
	}

	return elementMatcher( matchers );
}

function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
	var bySet = setMatchers.length > 0,
		byElement = elementMatchers.length > 0,
		superMatcher = function( seed, context, xml, results, outermost ) {
			var elem, j, matcher,
				matchedCount = 0,
				i = "0",
				unmatched = seed && [],
				setMatched = [],
				contextBackup = outermostContext,

				// We must always have either seed elements or outermost context
				elems = seed || byElement && Expr.find[ "TAG" ]( "*", outermost ),

				// Use integer dirruns iff this is the outermost matcher
				dirrunsUnique = ( dirruns += contextBackup == null ? 1 : Math.random() || 0.1 ),
				len = elems.length;

			if ( outermost ) {

				// Support: IE 11+, Edge 17 - 18+
				// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
				// two documents; shallow comparisons work.
				// eslint-disable-next-line eqeqeq
				outermostContext = context == document || context || outermost;
			}

			// Add elements passing elementMatchers directly to results
			// Support: IE<9, Safari
			// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
			for ( ; i !== len && ( elem = elems[ i ] ) != null; i++ ) {
				if ( byElement && elem ) {
					j = 0;

					// Support: IE 11+, Edge 17 - 18+
					// IE/Edge sometimes throw a "Permission denied" error when strict-comparing
					// two documents; shallow comparisons work.
					// eslint-disable-next-line eqeqeq
					if ( !context && elem.ownerDocument != document ) {
						setDocument( elem );
						xml = !documentIsHTML;
					}
					while ( ( matcher = elementMatchers[ j++ ] ) ) {
						if ( matcher( elem, context || document, xml ) ) {
							results.push( elem );
							break;
						}
					}
					if ( outermost ) {
						dirruns = dirrunsUnique;
					}
				}

				// Track unmatched elements for set filters
				if ( bySet ) {

					// They will have gone through all possible matchers
					if ( ( elem = !matcher && elem ) ) {
						matchedCount--;
					}

					// Lengthen the array for every element, matched or not
					if ( seed ) {
						unmatched.push( elem );
					}
				}
			}

			// `i` is now the count of elements visited above, and adding it to `matchedCount`
			// makes the latter nonnegative.
			matchedCount += i;

			// Apply set filters to unmatched elements
			// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
			// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
			// no element matchers and no seed.
			// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
			// case, which will result in a "00" `matchedCount` that differs from `i` but is also
			// numerically zero.
			if ( bySet && i !== matchedCount ) {
				j = 0;
				while ( ( matcher = setMatchers[ j++ ] ) ) {
					matcher( unmatched, setMatched, context, xml );
				}

				if ( seed ) {

					// Reintegrate element matches to eliminate the need for sorting
					if ( matchedCount > 0 ) {
						while ( i-- ) {
							if ( !( unmatched[ i ] || setMatched[ i ] ) ) {
								setMatched[ i ] = pop.call( results );
							}
						}
					}

					// Discard index placeholder values to get only actual matches
					setMatched = condense( setMatched );
				}

				// Add matches to results
				push.apply( results, setMatched );

				// Seedless set matches succeeding multiple successful matchers stipulate sorting
				if ( outermost && !seed && setMatched.length > 0 &&
					( matchedCount + setMatchers.length ) > 1 ) {

					Sizzle.uniqueSort( results );
				}
			}

			// Override manipulation of globals by nested matchers
			if ( outermost ) {
				dirruns = dirrunsUnique;
				outermostContext = contextBackup;
			}

			return unmatched;
		};

	return bySet ?
		markFunction( superMatcher ) :
		superMatcher;
}

compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
	var i,
		setMatchers = [],
		elementMatchers = [],
		cached = compilerCache[ selector + " " ];

	if ( !cached ) {

		// Generate a function of recursive functions that can be used to check each element
		if ( !match ) {
			match = tokenize( selector );
		}
		i = match.length;
		while ( i-- ) {
			cached = matcherFromTokens( match[ i ] );
			if ( cached[ expando ] ) {
				setMatchers.push( cached );
			} else {
				elementMatchers.push( cached );
			}
		}

		// Cache the compiled function
		cached = compilerCache(
			selector,
			matcherFromGroupMatchers( elementMatchers, setMatchers )
		);

		// Save selector and tokenization
		cached.selector = selector;
	}
	return cached;
};

/**
 * A low-level selection function that works with Sizzle's compiled
 *  selector functions
 * @param {String|Function} selector A selector or a pre-compiled
 *  selector function built with Sizzle.compile
 * @param {Element} context
 * @param {Array} [results]
 * @param {Array} [seed] A set of elements to match against
 */
select = Sizzle.select = function( selector, context, results, seed ) {
	var i, tokens, token, type, find,
		compiled = typeof selector === "function" && selector,
		match = !seed && tokenize( ( selector = compiled.selector || selector ) );

	results = results || [];

	// Try to minimize operations if there is only one selector in the list and no seed
	// (the latter of which guarantees us context)
	if ( match.length === 1 ) {

		// Reduce context if the leading compound selector is an ID
		tokens = match[ 0 ] = match[ 0 ].slice( 0 );
		if ( tokens.length > 2 && ( token = tokens[ 0 ] ).type === "ID" &&
			context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[ 1 ].type ] ) {

			context = ( Expr.find[ "ID" ]( token.matches[ 0 ]
				.replace( runescape, funescape ), context ) || [] )[ 0 ];
			if ( !context ) {
				return results;

			// Precompiled matchers will still verify ancestry, so step up a level
			} else if ( compiled ) {
				context = context.parentNode;
			}

			selector = selector.slice( tokens.shift().value.length );
		}

		// Fetch a seed set for right-to-left matching
		i = matchExpr[ "needsContext" ].test( selector ) ? 0 : tokens.length;
		while ( i-- ) {
			token = tokens[ i ];

			// Abort if we hit a combinator
			if ( Expr.relative[ ( type = token.type ) ] ) {
				break;
			}
			if ( ( find = Expr.find[ type ] ) ) {

				// Search, expanding context for leading sibling combinators
				if ( ( seed = find(
					token.matches[ 0 ].replace( runescape, funescape ),
					rsibling.test( tokens[ 0 ].type ) && testContext( context.parentNode ) ||
						context
				) ) ) {

					// If seed is empty or no tokens remain, we can return early
					tokens.splice( i, 1 );
					selector = seed.length && toSelector( tokens );
					if ( !selector ) {
						push.apply( results, seed );
						return results;
					}

					break;
				}
			}
		}
	}

	// Compile and execute a filtering function if one is not provided
	// Provide `match` to avoid retokenization if we modified the selector above
	( compiled || compile( selector, match ) )(
		seed,
		context,
		!documentIsHTML,
		results,
		!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
	);
	return results;
};

// One-time assignments

// Sort stability
support.sortStable = expando.split( "" ).sort( sortOrder ).join( "" ) === expando;

// Support: Chrome 14-35+
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = !!hasDuplicate;

// Initialize against the default document
setDocument();

// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert( function( el ) {

	// Should return 1, but returns 4 (following)
	return el.compareDocumentPosition( document.createElement( "fieldset" ) ) & 1;
} );

// Support: IE<8
// Prevent attribute/property "interpolation"
// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert( function( el ) {
	el.innerHTML = "<a href='#'></a>";
	return el.firstChild.getAttribute( "href" ) === "#";
} ) ) {
	addHandle( "type|href|height|width", function( elem, name, isXML ) {
		if ( !isXML ) {
			return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
		}
	} );
}

// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert( function( el ) {
	el.innerHTML = "<input/>";
	el.firstChild.setAttribute( "value", "" );
	return el.firstChild.getAttribute( "value" ) === "";
} ) ) {
	addHandle( "value", function( elem, _name, isXML ) {
		if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
			return elem.defaultValue;
		}
	} );
}

// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert( function( el ) {
	return el.getAttribute( "disabled" ) == null;
} ) ) {
	addHandle( booleans, function( elem, name, isXML ) {
		var val;
		if ( !isXML ) {
			return elem[ name ] === true ? name.toLowerCase() :
				( val = elem.getAttributeNode( name ) ) && val.specified ?
					val.value :
					null;
		}
	} );
}

return Sizzle;

} )( window );



jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;

// Deprecated
jQuery.expr[ ":" ] = jQuery.expr.pseudos;
jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;
jQuery.escapeSelector = Sizzle.escape;




var dir = function( elem, dir, until ) {
	var matched = [],
		truncate = until !== undefined;

	while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
		if ( elem.nodeType === 1 ) {
			if ( truncate && jQuery( elem ).is( until ) ) {
				break;
			}
			matched.push( elem );
		}
	}
	return matched;
};


var siblings = function( n, elem ) {
	var matched = [];

	for ( ; n; n = n.nextSibling ) {
		if ( n.nodeType === 1 && n !== elem ) {
			matched.push( n );
		}
	}

	return matched;
};


var rneedsContext = jQuery.expr.match.needsContext;



function nodeName( elem, name ) {

	return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();

}
var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );



// Implement the identical functionality for filter and not
function winnow( elements, qualifier, not ) {
	if ( isFunction( qualifier ) ) {
		return jQuery.grep( elements, function( elem, i ) {
			return !!qualifier.call( elem, i, elem ) !== not;
		} );
	}

	// Single element
	if ( qualifier.nodeType ) {
		return jQuery.grep( elements, function( elem ) {
			return ( elem === qualifier ) !== not;
		} );
	}

	// Arraylike of elements (jQuery, arguments, Array)
	if ( typeof qualifier !== "string" ) {
		return jQuery.grep( elements, function( elem ) {
			return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
		} );
	}

	// Filtered directly for both simple and complex selectors
	return jQuery.filter( qualifier, elements, not );
}

jQuery.filter = function( expr, elems, not ) {
	var elem = elems[ 0 ];

	if ( not ) {
		expr = ":not(" + expr + ")";
	}

	if ( elems.length === 1 && elem.nodeType === 1 ) {
		return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
	}

	return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
		return elem.nodeType === 1;
	} ) );
};

jQuery.fn.extend( {
	find: function( selector ) {
		var i, ret,
			len = this.length,
			self = this;

		if ( typeof selector !== "string" ) {
			return this.pushStack( jQuery( selector ).filter( function() {
				for ( i = 0; i < len; i++ ) {
					if ( jQuery.contains( self[ i ], this ) ) {
						return true;
					}
				}
			} ) );
		}

		ret = this.pushStack( [] );

		for ( i = 0; i < len; i++ ) {
			jQuery.find( selector, self[ i ], ret );
		}

		return len > 1 ? jQuery.uniqueSort( ret ) : ret;
	},
	filter: function( selector ) {
		return this.pushStack( winnow( this, selector || [], false ) );
	},
	not: function( selector ) {
		return this.pushStack( winnow( this, selector || [], true ) );
	},
	is: function( selector ) {
		return !!winnow(
			this,

			// If this is a positional/relative selector, check membership in the returned set
			// so $("p:first").is("p:last") won't return true for a doc with two "p".
			typeof selector === "string" && rneedsContext.test( selector ) ?
				jQuery( selector ) :
				selector || [],
			false
		).length;
	}
} );


// Initialize a jQuery object


// A central reference to the root jQuery(document)
var rootjQuery,

	// A simple way to check for HTML strings
	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
	// Strict HTML recognition (#11290: must start with <)
	// Shortcut simple #id case for speed
	rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,

	init = jQuery.fn.init = function( selector, context, root ) {
		var match, elem;

		// HANDLE: $(""), $(null), $(undefined), $(false)
		if ( !selector ) {
			return this;
		}

		// Method init() accepts an alternate rootjQuery
		// so migrate can support jQuery.sub (gh-2101)
		root = root || rootjQuery;

		// Handle HTML strings
		if ( typeof selector === "string" ) {
			if ( selector[ 0 ] === "<" &&
				selector[ selector.length - 1 ] === ">" &&
				selector.length >= 3 ) {

				// Assume that strings that start and end with <> are HTML and skip the regex check
				match = [ null, selector, null ];

			} else {
				match = rquickExpr.exec( selector );
			}

			// Match html or make sure no context is specified for #id
			if ( match && ( match[ 1 ] || !context ) ) {

				// HANDLE: $(html) -> $(array)
				if ( match[ 1 ] ) {
					context = context instanceof jQuery ? context[ 0 ] : context;

					// Option to run scripts is true for back-compat
					// Intentionally let the error be thrown if parseHTML is not present
					jQuery.merge( this, jQuery.parseHTML(
						match[ 1 ],
						context && context.nodeType ? context.ownerDocument || context : document,
						true
					) );

					// HANDLE: $(html, props)
					if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
						for ( match in context ) {

							// Properties of context are called as methods if possible
							if ( isFunction( this[ match ] ) ) {
								this[ match ]( context[ match ] );

							// ...and otherwise set as attributes
							} else {
								this.attr( match, context[ match ] );
							}
						}
					}

					return this;

				// HANDLE: $(#id)
				} else {
					elem = document.getElementById( match[ 2 ] );

					if ( elem ) {

						// Inject the element directly into the jQuery object
						this[ 0 ] = elem;
						this.length = 1;
					}
					return this;
				}

			// HANDLE: $(expr, $(...))
			} else if ( !context || context.jquery ) {
				return ( context || root ).find( selector );

			// HANDLE: $(expr, context)
			// (which is just equivalent to: $(context).find(expr)
			} else {
				return this.constructor( context ).find( selector );
			}

		// HANDLE: $(DOMElement)
		} else if ( selector.nodeType ) {
			this[ 0 ] = selector;
			this.length = 1;
			return this;

		// HANDLE: $(function)
		// Shortcut for document ready
		} else if ( isFunction( selector ) ) {
			return root.ready !== undefined ?
				root.ready( selector ) :

				// Execute immediately if ready is not present
				selector( jQuery );
		}

		return jQuery.makeArray( selector, this );
	};

// Give the init function the jQuery prototype for later instantiation
init.prototype = jQuery.fn;

// Initialize central reference
rootjQuery = jQuery( document );


var rparentsprev = /^(?:parents|prev(?:Until|All))/,

	// Methods guaranteed to produce a unique set when starting from a unique set
	guaranteedUnique = {
		children: true,
		contents: true,
		next: true,
		prev: true
	};

jQuery.fn.extend( {
	has: function( target ) {
		var targets = jQuery( target, this ),
			l = targets.length;

		return this.filter( function() {
			var i = 0;
			for ( ; i < l; i++ ) {
				if ( jQuery.contains( this, targets[ i ] ) ) {
					return true;
				}
			}
		} );
	},

	closest: function( selectors, context ) {
		var cur,
			i = 0,
			l = this.length,
			matched = [],
			targets = typeof selectors !== "string" && jQuery( selectors );

		// Positional selectors never match, since there's no _selection_ context
		if ( !rneedsContext.test( selectors ) ) {
			for ( ; i < l; i++ ) {
				for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {

					// Always skip document fragments
					if ( cur.nodeType < 11 && ( targets ?
						targets.index( cur ) > -1 :

						// Don't pass non-elements to Sizzle
						cur.nodeType === 1 &&
							jQuery.find.matchesSelector( cur, selectors ) ) ) {

						matched.push( cur );
						break;
					}
				}
			}
		}

		return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
	},

	// Determine the position of an element within the set
	index: function( elem ) {

		// No argument, return index in parent
		if ( !elem ) {
			return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
		}

		// Index in selector
		if ( typeof elem === "string" ) {
			return indexOf.call( jQuery( elem ), this[ 0 ] );
		}

		// Locate the position of the desired element
		return indexOf.call( this,

			// If it receives a jQuery object, the first element is used
			elem.jquery ? elem[ 0 ] : elem
		);
	},

	add: function( selector, context ) {
		return this.pushStack(
			jQuery.uniqueSort(
				jQuery.merge( this.get(), jQuery( selector, context ) )
			)
		);
	},

	addBack: function( selector ) {
		return this.add( selector == null ?
			this.prevObject : this.prevObject.filter( selector )
		);
	}
} );

function sibling( cur, dir ) {
	while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
	return cur;
}

jQuery.each( {
	parent: function( elem ) {
		var parent = elem.parentNode;
		return parent && parent.nodeType !== 11 ? parent : null;
	},
	parents: function( elem ) {
		return dir( elem, "parentNode" );
	},
	parentsUntil: function( elem, _i, until ) {
		return dir( elem, "parentNode", until );
	},
	next: function( elem ) {
		return sibling( elem, "nextSibling" );
	},
	prev: function( elem ) {
		return sibling( elem, "previousSibling" );
	},
	nextAll: function( elem ) {
		return dir( elem, "nextSibling" );
	},
	prevAll: function( elem ) {
		return dir( elem, "previousSibling" );
	},
	nextUntil: function( elem, _i, until ) {
		return dir( elem, "nextSibling", until );
	},
	prevUntil: function( elem, _i, until ) {
		return dir( elem, "previousSibling", until );
	},
	siblings: function( elem ) {
		return siblings( ( elem.parentNode || {} ).firstChild, elem );
	},
	children: function( elem ) {
		return siblings( elem.firstChild );
	},
	contents: function( elem ) {
		if ( elem.contentDocument != null &&

			// Support: IE 11+
			// <object> elements with no `data` attribute has an object
			// `contentDocument` with a `null` prototype.
			getProto( elem.contentDocument ) ) {

			return elem.contentDocument;
		}

		// Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
		// Treat the template element as a regular one in browsers that
		// don't support it.
		if ( nodeName( elem, "template" ) ) {
			elem = elem.content || elem;
		}

		return jQuery.merge( [], elem.childNodes );
	}
}, function( name, fn ) {
	jQuery.fn[ name ] = function( until, selector ) {
		var matched = jQuery.map( this, fn, until );

		if ( name.slice( -5 ) !== "Until" ) {
			selector = until;
		}

		if ( selector && typeof selector === "string" ) {
			matched = jQuery.filter( selector, matched );
		}

		if ( this.length > 1 ) {

			// Remove duplicates
			if ( !guaranteedUnique[ name ] ) {
				jQuery.uniqueSort( matched );
			}

			// Reverse order for parents* and prev-derivatives
			if ( rparentsprev.test( name ) ) {
				matched.reverse();
			}
		}

		return this.pushStack( matched );
	};
} );
var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );



// Convert String-formatted options into Object-formatted ones
function createOptions( options ) {
	var object = {};
	jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
		object[ flag ] = true;
	} );
	return object;
}

/*
 * Create a callback list using the following parameters:
 *
 *	options: an optional list of space-separated options that will change how
 *			the callback list behaves or a more traditional option object
 *
 * By default a callback list will act like an event callback list and can be
 * "fired" multiple times.
 *
 * Possible options:
 *
 *	once:			will ensure the callback list can only be fired once (like a Deferred)
 *
 *	memory:			will keep track of previous values and will call any callback added
 *					after the list has been fired right away with the latest "memorized"
 *					values (like a Deferred)
 *
 *	unique:			will ensure a callback can only be added once (no duplicate in the list)
 *
 *	stopOnFalse:	interrupt callings when a callback returns false
 *
 */
jQuery.Callbacks = function( options ) {

	// Convert options from String-formatted to Object-formatted if needed
	// (we check in cache first)
	options = typeof options === "string" ?
		createOptions( options ) :
		jQuery.extend( {}, options );

	var // Flag to know if list is currently firing
		firing,

		// Last fire value for non-forgettable lists
		memory,

		// Flag to know if list was already fired
		fired,

		// Flag to prevent firing
		locked,

		// Actual callback list
		list = [],

		// Queue of execution data for repeatable lists
		queue = [],

		// Index of currently firing callback (modified by add/remove as needed)
		firingIndex = -1,

		// Fire callbacks
		fire = function() {

			// Enforce single-firing
			locked = locked || options.once;

			// Execute callbacks for all pending executions,
			// respecting firingIndex overrides and runtime changes
			fired = firing = true;
			for ( ; queue.length; firingIndex = -1 ) {
				memory = queue.shift();
				while ( ++firingIndex < list.length ) {

					// Run callback and check for early termination
					if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
						options.stopOnFalse ) {

						// Jump to end and forget the data so .add doesn't re-fire
						firingIndex = list.length;
						memory = false;
					}
				}
			}

			// Forget the data if we're done with it
			if ( !options.memory ) {
				memory = false;
			}

			firing = false;

			// Clean up if we're done firing for good
			if ( locked ) {

				// Keep an empty list if we have data for future add calls
				if ( memory ) {
					list = [];

				// Otherwise, this object is spent
				} else {
					list = "";
				}
			}
		},

		// Actual Callbacks object
		self = {

			// Add a callback or a collection of callbacks to the list
			add: function() {
				if ( list ) {

					// If we have memory from a past run, we should fire after adding
					if ( memory && !firing ) {
						firingIndex = list.length - 1;
						queue.push( memory );
					}

					( function add( args ) {
						jQuery.each( args, function( _, arg ) {
							if ( isFunction( arg ) ) {
								if ( !options.unique || !self.has( arg ) ) {
									list.push( arg );
								}
							} else if ( arg && arg.length && toType( arg ) !== "string" ) {

								// Inspect recursively
								add( arg );
							}
						} );
					} )( arguments );

					if ( memory && !firing ) {
						fire();
					}
				}
				return this;
			},

			// Remove a callback from the list
			remove: function() {
				jQuery.each( arguments, function( _, arg ) {
					var index;
					while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
						list.splice( index, 1 );

						// Handle firing indexes
						if ( index <= firingIndex ) {
							firingIndex--;
						}
					}
				} );
				return this;
			},

			// Check if a given callback is in the list.
			// If no argument is given, return whether or not list has callbacks attached.
			has: function( fn ) {
				return fn ?
					jQuery.inArray( fn, list ) > -1 :
					list.length > 0;
			},

			// Remove all callbacks from the list
			empty: function() {
				if ( list ) {
					list = [];
				}
				return this;
			},

			// Disable .fire and .add
			// Abort any current/pending executions
			// Clear all callbacks and values
			disable: function() {
				locked = queue = [];
				list = memory = "";
				return this;
			},
			disabled: function() {
				return !list;
			},

			// Disable .fire
			// Also disable .add unless we have memory (since it would have no effect)
			// Abort any pending executions
			lock: function() {
				locked = queue = [];
				if ( !memory && !firing ) {
					list = memory = "";
				}
				return this;
			},
			locked: function() {
				return !!locked;
			},

			// Call all callbacks with the given context and arguments
			fireWith: function( context, args ) {
				if ( !locked ) {
					args = args || [];
					args = [ context, args.slice ? args.slice() : args ];
					queue.push( args );
					if ( !firing ) {
						fire();
					}
				}
				return this;
			},

			// Call all the callbacks with the given arguments
			fire: function() {
				self.fireWith( this, arguments );
				return this;
			},

			// To know if the callbacks have already been called at least once
			fired: function() {
				return !!fired;
			}
		};

	return self;
};


function Identity( v ) {
	return v;
}
function Thrower( ex ) {
	throw ex;
}

function adoptValue( value, resolve, reject, noValue ) {
	var method;

	try {

		// Check for promise aspect first to privilege synchronous behavior
		if ( value && isFunction( ( method = value.promise ) ) ) {
			method.call( value ).done( resolve ).fail( reject );

		// Other thenables
		} else if ( value && isFunction( ( method = value.then ) ) ) {
			method.call( value, resolve, reject );

		// Other non-thenables
		} else {

			// Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
			// * false: [ value ].slice( 0 ) => resolve( value )
			// * true: [ value ].slice( 1 ) => resolve()
			resolve.apply( undefined, [ value ].slice( noValue ) );
		}

	// For Promises/A+, convert exceptions into rejections
	// Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
	// Deferred#then to conditionally suppress rejection.
	} catch ( value ) {

		// Support: Android 4.0 only
		// Strict mode functions invoked without .call/.apply get global-object context
		reject.apply( undefined, [ value ] );
	}
}

jQuery.extend( {

	Deferred: function( func ) {
		var tuples = [

				// action, add listener, callbacks,
				// ... .then handlers, argument index, [final state]
				[ "notify", "progress", jQuery.Callbacks( "memory" ),
					jQuery.Callbacks( "memory" ), 2 ],
				[ "resolve", "done", jQuery.Callbacks( "once memory" ),
					jQuery.Callbacks( "once memory" ), 0, "resolved" ],
				[ "reject", "fail", jQuery.Callbacks( "once memory" ),
					jQuery.Callbacks( "once memory" ), 1, "rejected" ]
			],
			state = "pending",
			promise = {
				state: function() {
					return state;
				},
				always: function() {
					deferred.done( arguments ).fail( arguments );
					return this;
				},
				"catch": function( fn ) {
					return promise.then( null, fn );
				},

				// Keep pipe for back-compat
				pipe: function( /* fnDone, fnFail, fnProgress */ ) {
					var fns = arguments;

					return jQuery.Deferred( function( newDefer ) {
						jQuery.each( tuples, function( _i, tuple ) {

							// Map tuples (progress, done, fail) to arguments (done, fail, progress)
							var fn = isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];

							// deferred.progress(function() { bind to newDefer or newDefer.notify })
							// deferred.done(function() { bind to newDefer or newDefer.resolve })
							// deferred.fail(function() { bind to newDefer or newDefer.reject })
							deferred[ tuple[ 1 ] ]( function() {
								var returned = fn && fn.apply( this, arguments );
								if ( returned && isFunction( returned.promise ) ) {
									returned.promise()
										.progress( newDefer.notify )
										.done( newDefer.resolve )
										.fail( newDefer.reject );
								} else {
									newDefer[ tuple[ 0 ] + "With" ](
										this,
										fn ? [ returned ] : arguments
									);
								}
							} );
						} );
						fns = null;
					} ).promise();
				},
				then: function( onFulfilled, onRejected, onProgress ) {
					var maxDepth = 0;
					function resolve( depth, deferred, handler, special ) {
						return function() {
							var that = this,
								args = arguments,
								mightThrow = function() {
									var returned, then;

									// Support: Promises/A+ section 2.3.3.3.3
									// https://promisesaplus.com/#point-59
									// Ignore double-resolution attempts
									if ( depth < maxDepth ) {
										return;
									}

									returned = handler.apply( that, args );

									// Support: Promises/A+ section 2.3.1
									// https://promisesaplus.com/#point-48
									if ( returned === deferred.promise() ) {
										throw new TypeError( "Thenable self-resolution" );
									}

									// Support: Promises/A+ sections 2.3.3.1, 3.5
									// https://promisesaplus.com/#point-54
									// https://promisesaplus.com/#point-75
									// Retrieve `then` only once
									then = returned &&

										// Support: Promises/A+ section 2.3.4
										// https://promisesaplus.com/#point-64
										// Only check objects and functions for thenability
										( typeof returned === "object" ||
											typeof returned === "function" ) &&
										returned.then;

									// Handle a returned thenable
									if ( isFunction( then ) ) {

										// Special processors (notify) just wait for resolution
										if ( special ) {
											then.call(
												returned,
												resolve( maxDepth, deferred, Identity, special ),
												resolve( maxDepth, deferred, Thrower, special )
											);

										// Normal processors (resolve) also hook into progress
										} else {

											// ...and disregard older resolution values
											maxDepth++;

											then.call(
												returned,
												resolve( maxDepth, deferred, Identity, special ),
												resolve( maxDepth, deferred, Thrower, special ),
												resolve( maxDepth, deferred, Identity,
													deferred.notifyWith )
											);
										}

									// Handle all other returned values
									} else {

										// Only substitute handlers pass on context
										// and multiple values (non-spec behavior)
										if ( handler !== Identity ) {
											that = undefined;
											args = [ returned ];
										}

										// Process the value(s)
										// Default process is resolve
										( special || deferred.resolveWith )( that, args );
									}
								},

								// Only normal processors (resolve) catch and reject exceptions
								process = special ?
									mightThrow :
									function() {
										try {
											mightThrow();
										} catch ( e ) {

											if ( jQuery.Deferred.exceptionHook ) {
												jQuery.Deferred.exceptionHook( e,
													process.stackTrace );
											}

											// Support: Promises/A+ section 2.3.3.3.4.1
											// https://promisesaplus.com/#point-61
											// Ignore post-resolution exceptions
											if ( depth + 1 >= maxDepth ) {

												// Only substitute handlers pass on context
												// and multiple values (non-spec behavior)
												if ( handler !== Thrower ) {
													that = undefined;
													args = [ e ];
												}

												deferred.rejectWith( that, args );
											}
										}
									};

							// Support: Promises/A+ section 2.3.3.3.1
							// https://promisesaplus.com/#point-57
							// Re-resolve promises immediately to dodge false rejection from
							// subsequent errors
							if ( depth ) {
								process();
							} else {

								// Call an optional hook to record the stack, in case of exception
								// since it's otherwise lost when execution goes async
								if ( jQuery.Deferred.getStackHook ) {
									process.stackTrace = jQuery.Deferred.getStackHook();
								}
								window.setTimeout( process );
							}
						};
					}

					return jQuery.Deferred( function( newDefer ) {

						// progress_handlers.add( ... )
						tuples[ 0 ][ 3 ].add(
							resolve(
								0,
								newDefer,
								isFunction( onProgress ) ?
									onProgress :
									Identity,
								newDefer.notifyWith
							)
						);

						// fulfilled_handlers.add( ... )
						tuples[ 1 ][ 3 ].add(
							resolve(
								0,
								newDefer,
								isFunction( onFulfilled ) ?
									onFulfilled :
									Identity
							)
						);

						// rejected_handlers.add( ... )
						tuples[ 2 ][ 3 ].add(
							resolve(
								0,
								newDefer,
								isFunction( onRejected ) ?
									onRejected :
									Thrower
							)
						);
					} ).promise();
				},

				// Get a promise for this deferred
				// If obj is provided, the promise aspect is added to the object
				promise: function( obj ) {
					return obj != null ? jQuery.extend( obj, promise ) : promise;
				}
			},
			deferred = {};

		// Add list-specific methods
		jQuery.each( tuples, function( i, tuple ) {
			var list = tuple[ 2 ],
				stateString = tuple[ 5 ];

			// promise.progress = list.add
			// promise.done = list.add
			// promise.fail = list.add
			promise[ tuple[ 1 ] ] = list.add;

			// Handle state
			if ( stateString ) {
				list.add(
					function() {

						// state = "resolved" (i.e., fulfilled)
						// state = "rejected"
						state = stateString;
					},

					// rejected_callbacks.disable
					// fulfilled_callbacks.disable
					tuples[ 3 - i ][ 2 ].disable,

					// rejected_handlers.disable
					// fulfilled_handlers.disable
					tuples[ 3 - i ][ 3 ].disable,

					// progress_callbacks.lock
					tuples[ 0 ][ 2 ].lock,

					// progress_handlers.lock
					tuples[ 0 ][ 3 ].lock
				);
			}

			// progress_handlers.fire
			// fulfilled_handlers.fire
			// rejected_handlers.fire
			list.add( tuple[ 3 ].fire );

			// deferred.notify = function() { deferred.notifyWith(...) }
			// deferred.resolve = function() { deferred.resolveWith(...) }
			// deferred.reject = function() { deferred.rejectWith(...) }
			deferred[ tuple[ 0 ] ] = function() {
				deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
				return this;
			};

			// deferred.notifyWith = list.fireWith
			// deferred.resolveWith = list.fireWith
			// deferred.rejectWith = list.fireWith
			deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
		} );

		// Make the deferred a promise
		promise.promise( deferred );

		// Call given func if any
		if ( func ) {
			func.call( deferred, deferred );
		}

		// All done!
		return deferred;
	},

	// Deferred helper
	when: function( singleValue ) {
		var

			// count of uncompleted subordinates
			remaining = arguments.length,

			// count of unprocessed arguments
			i = remaining,

			// subordinate fulfillment data
			resolveContexts = Array( i ),
			resolveValues = slice.call( arguments ),

			// the primary Deferred
			primary = jQuery.Deferred(),

			// subordinate callback factory
			updateFunc = function( i ) {
				return function( value ) {
					resolveContexts[ i ] = this;
					resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
					if ( !( --remaining ) ) {
						primary.resolveWith( resolveContexts, resolveValues );
					}
				};
			};

		// Single- and empty arguments are adopted like Promise.resolve
		if ( remaining <= 1 ) {
			adoptValue( singleValue, primary.done( updateFunc( i ) ).resolve, primary.reject,
				!remaining );

			// Use .then() to unwrap secondary thenables (cf. gh-3000)
			if ( primary.state() === "pending" ||
				isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {

				return primary.then();
			}
		}

		// Multiple arguments are aggregated like Promise.all array elements
		while ( i-- ) {
			adoptValue( resolveValues[ i ], updateFunc( i ), primary.reject );
		}

		return primary.promise();
	}
} );


// These usually indicate a programmer mistake during development,
// warn about them ASAP rather than swallowing them by default.
var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;

jQuery.Deferred.exceptionHook = function( error, stack ) {

	// Support: IE 8 - 9 only
	// Console exists when dev tools are open, which can happen at any time
	if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
		window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
	}
};




jQuery.readyException = function( error ) {
	window.setTimeout( function() {
		throw error;
	} );
};




// The deferred used on DOM ready
var readyList = jQuery.Deferred();

jQuery.fn.ready = function( fn ) {

	readyList
		.then( fn )

		// Wrap jQuery.readyException in a function so that the lookup
		// happens at the time of error handling instead of callback
		// registration.
		.catch( function( error ) {
			jQuery.readyException( error );
		} );

	return this;
};

jQuery.extend( {

	// Is the DOM ready to be used? Set to true once it occurs.
	isReady: false,

	// A counter to track how many items to wait for before
	// the ready event fires. See #6781
	readyWait: 1,

	// Handle when the DOM is ready
	ready: function( wait ) {

		// Abort if there are pending holds or we're already ready
		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
			return;
		}

		// Remember that the DOM is ready
		jQuery.isReady = true;

		// If a normal DOM Ready event fired, decrement, and wait if need be
		if ( wait !== true && --jQuery.readyWait > 0 ) {
			return;
		}

		// If there are functions bound, to execute
		readyList.resolveWith( document, [ jQuery ] );
	}
} );

jQuery.ready.then = readyList.then;

// The ready event handler and self cleanup method
function completed() {
	document.removeEventListener( "DOMContentLoaded", completed );
	window.removeEventListener( "load", completed );
	jQuery.ready();
}

// Catch cases where $(document).ready() is called
// after the browser event has already occurred.
// Support: IE <=9 - 10 only
// Older IE sometimes signals "interactive" too soon
if ( document.readyState === "complete" ||
	( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {

	// Handle it asynchronously to allow scripts the opportunity to delay ready
	window.setTimeout( jQuery.ready );

} else {

	// Use the handy event callback
	document.addEventListener( "DOMContentLoaded", completed );

	// A fallback to window.onload, that will always work
	window.addEventListener( "load", completed );
}




// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
	var i = 0,
		len = elems.length,
		bulk = key == null;

	// Sets many values
	if ( toType( key ) === "object" ) {
		chainable = true;
		for ( i in key ) {
			access( elems, fn, i, key[ i ], true, emptyGet, raw );
		}

	// Sets one value
	} else if ( value !== undefined ) {
		chainable = true;

		if ( !isFunction( value ) ) {
			raw = true;
		}

		if ( bulk ) {

			// Bulk operations run against the entire set
			if ( raw ) {
				fn.call( elems, value );
				fn = null;

			// ...except when executing function values
			} else {
				bulk = fn;
				fn = function( elem, _key, value ) {
					return bulk.call( jQuery( elem ), value );
				};
			}
		}

		if ( fn ) {
			for ( ; i < len; i++ ) {
				fn(
					elems[ i ], key, raw ?
						value :
						value.call( elems[ i ], i, fn( elems[ i ], key ) )
				);
			}
		}
	}

	if ( chainable ) {
		return elems;
	}

	// Gets
	if ( bulk ) {
		return fn.call( elems );
	}

	return len ? fn( elems[ 0 ], key ) : emptyGet;
};


// Matches dashed string for camelizing
var rmsPrefix = /^-ms-/,
	rdashAlpha = /-([a-z])/g;

// Used by camelCase as callback to replace()
function fcamelCase( _all, letter ) {
	return letter.toUpperCase();
}

// Convert dashed to camelCase; used by the css and data modules
// Support: IE <=9 - 11, Edge 12 - 15
// Microsoft forgot to hump their vendor prefix (#9572)
function camelCase( string ) {
	return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
}
var acceptData = function( owner ) {

	// Accepts only:
	//  - Node
	//    - Node.ELEMENT_NODE
	//    - Node.DOCUMENT_NODE
	//  - Object
	//    - Any
	return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
};




function Data() {
	this.expando = jQuery.expando + Data.uid++;
}

Data.uid = 1;

Data.prototype = {

	cache: function( owner ) {

		// Check if the owner object already has a cache
		var value = owner[ this.expando ];

		// If not, create one
		if ( !value ) {
			value = {};

			// We can accept data for non-element nodes in modern browsers,
			// but we should not, see #8335.
			// Always return an empty object.
			if ( acceptData( owner ) ) {

				// If it is a node unlikely to be stringify-ed or looped over
				// use plain assignment
				if ( owner.nodeType ) {
					owner[ this.expando ] = value;

				// Otherwise secure it in a non-enumerable property
				// configurable must be true to allow the property to be
				// deleted when data is removed
				} else {
					Object.defineProperty( owner, this.expando, {
						value: value,
						configurable: true
					} );
				}
			}
		}

		return value;
	},
	set: function( owner, data, value ) {
		var prop,
			cache = this.cache( owner );

		// Handle: [ owner, key, value ] args
		// Always use camelCase key (gh-2257)
		if ( typeof data === "string" ) {
			cache[ camelCase( data ) ] = value;

		// Handle: [ owner, { properties } ] args
		} else {

			// Copy the properties one-by-one to the cache object
			for ( prop in data ) {
				cache[ camelCase( prop ) ] = data[ prop ];
			}
		}
		return cache;
	},
	get: function( owner, key ) {
		return key === undefined ?
			this.cache( owner ) :

			// Always use camelCase key (gh-2257)
			owner[ this.expando ] && owner[ this.expando ][ camelCase( key ) ];
	},
	access: function( owner, key, value ) {

		// In cases where either:
		//
		//   1. No key was specified
		//   2. A string key was specified, but no value provided
		//
		// Take the "read" path and allow the get method to determine
		// which value to return, respectively either:
		//
		//   1. The entire cache object
		//   2. The data stored at the key
		//
		if ( key === undefined ||
				( ( key && typeof key === "string" ) && value === undefined ) ) {

			return this.get( owner, key );
		}

		// When the key is not a string, or both a key and value
		// are specified, set or extend (existing objects) with either:
		//
		//   1. An object of properties
		//   2. A key and value
		//
		this.set( owner, key, value );

		// Since the "set" path can have two possible entry points
		// return the expected data based on which path was taken[*]
		return value !== undefined ? value : key;
	},
	remove: function( owner, key ) {
		var i,
			cache = owner[ this.expando ];

		if ( cache === undefined ) {
			return;
		}

		if ( key !== undefined ) {

			// Support array or space separated string of keys
			if ( Array.isArray( key ) ) {

				// If key is an array of keys...
				// We always set camelCase keys, so remove that.
				key = key.map( camelCase );
			} else {
				key = camelCase( key );

				// If a key with the spaces exists, use it.
				// Otherwise, create an array by matching non-whitespace
				key = key in cache ?
					[ key ] :
					( key.match( rnothtmlwhite ) || [] );
			}

			i = key.length;

			while ( i-- ) {
				delete cache[ key[ i ] ];
			}
		}

		// Remove the expando if there's no more data
		if ( key === undefined || jQuery.isEmptyObject( cache ) ) {

			// Support: Chrome <=35 - 45
			// Webkit & Blink performance suffers when deleting properties
			// from DOM nodes, so set to undefined instead
			// https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
			if ( owner.nodeType ) {
				owner[ this.expando ] = undefined;
			} else {
				delete owner[ this.expando ];
			}
		}
	},
	hasData: function( owner ) {
		var cache = owner[ this.expando ];
		return cache !== undefined && !jQuery.isEmptyObject( cache );
	}
};
var dataPriv = new Data();

var dataUser = new Data();



//	Implementation Summary
//
//	1. Enforce API surface and semantic compatibility with 1.9.x branch
//	2. Improve the module's maintainability by reducing the storage
//		paths to a single mechanism.
//	3. Use the same single mechanism to support "private" and "user" data.
//	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
//	5. Avoid exposing implementation details on user objects (eg. expando properties)
//	6. Provide a clear path for implementation upgrade to WeakMap in 2014

var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
	rmultiDash = /[A-Z]/g;

function getData( data ) {
	if ( data === "true" ) {
		return true;
	}

	if ( data === "false" ) {
		return false;
	}

	if ( data === "null" ) {
		return null;
	}

	// Only convert to a number if it doesn't change the string
	if ( data === +data + "" ) {
		return +data;
	}

	if ( rbrace.test( data ) ) {
		return JSON.parse( data );
	}

	return data;
}

function dataAttr( elem, key, data ) {
	var name;

	// If nothing was found internally, try to fetch any
	// data from the HTML5 data-* attribute
	if ( data === undefined && elem.nodeType === 1 ) {
		name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
		data = elem.getAttribute( name );

		if ( typeof data === "string" ) {
			try {
				data = getData( data );
			} catch ( e ) {}

			// Make sure we set the data so it isn't changed later
			dataUser.set( elem, key, data );
		} else {
			data = undefined;
		}
	}
	return data;
}

jQuery.extend( {
	hasData: function( elem ) {
		return dataUser.hasData( elem ) || dataPriv.hasData( elem );
	},

	data: function( elem, name, data ) {
		return dataUser.access( elem, name, data );
	},

	removeData: function( elem, name ) {
		dataUser.remove( elem, name );
	},

	// TODO: Now that all calls to _data and _removeData have been replaced
	// with direct calls to dataPriv methods, these can be deprecated.
	_data: function( elem, name, data ) {
		return dataPriv.access( elem, name, data );
	},

	_removeData: function( elem, name ) {
		dataPriv.remove( elem, name );
	}
} );

jQuery.fn.extend( {
	data: function( key, value ) {
		var i, name, data,
			elem = this[ 0 ],
			attrs = elem && elem.attributes;

		// Gets all values
		if ( key === undefined ) {
			if ( this.length ) {
				data = dataUser.get( elem );

				if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
					i = attrs.length;
					while ( i-- ) {

						// Support: IE 11 only
						// The attrs elements can be null (#14894)
						if ( attrs[ i ] ) {
							name = attrs[ i ].name;
							if ( name.indexOf( "data-" ) === 0 ) {
								name = camelCase( name.slice( 5 ) );
								dataAttr( elem, name, data[ name ] );
							}
						}
					}
					dataPriv.set( elem, "hasDataAttrs", true );
				}
			}

			return data;
		}

		// Sets multiple values
		if ( typeof key === "object" ) {
			return this.each( function() {
				dataUser.set( this, key );
			} );
		}

		return access( this, function( value ) {
			var data;

			// The calling jQuery object (element matches) is not empty
			// (and therefore has an element appears at this[ 0 ]) and the
			// `value` parameter was not undefined. An empty jQuery object
			// will result in `undefined` for elem = this[ 0 ] which will
			// throw an exception if an attempt to read a data cache is made.
			if ( elem && value === undefined ) {

				// Attempt to get data from the cache
				// The key will always be camelCased in Data
				data = dataUser.get( elem, key );
				if ( data !== undefined ) {
					return data;
				}

				// Attempt to "discover" the data in
				// HTML5 custom data-* attrs
				data = dataAttr( elem, key );
				if ( data !== undefined ) {
					return data;
				}

				// We tried really hard, but the data doesn't exist.
				return;
			}

			// Set the data...
			this.each( function() {

				// We always store the camelCased key
				dataUser.set( this, key, value );
			} );
		}, null, value, arguments.length > 1, null, true );
	},

	removeData: function( key ) {
		return this.each( function() {
			dataUser.remove( this, key );
		} );
	}
} );


jQuery.extend( {
	queue: function( elem, type, data ) {
		var queue;

		if ( elem ) {
			type = ( type || "fx" ) + "queue";
			queue = dataPriv.get( elem, type );

			// Speed up dequeue by getting out quickly if this is just a lookup
			if ( data ) {
				if ( !queue || Array.isArray( data ) ) {
					queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
				} else {
					queue.push( data );
				}
			}
			return queue || [];
		}
	},

	dequeue: function( elem, type ) {
		type = type || "fx";

		var queue = jQuery.queue( elem, type ),
			startLength = queue.length,
			fn = queue.shift(),
			hooks = jQuery._queueHooks( elem, type ),
			next = function() {
				jQuery.dequeue( elem, type );
			};

		// If the fx queue is dequeued, always remove the progress sentinel
		if ( fn === "inprogress" ) {
			fn = queue.shift();
			startLength--;
		}

		if ( fn ) {

			// Add a progress sentinel to prevent the fx queue from being
			// automatically dequeued
			if ( type === "fx" ) {
				queue.unshift( "inprogress" );
			}

			// Clear up the last queue stop function
			delete hooks.stop;
			fn.call( elem, next, hooks );
		}

		if ( !startLength && hooks ) {
			hooks.empty.fire();
		}
	},

	// Not public - generate a queueHooks object, or return the current one
	_queueHooks: function( elem, type ) {
		var key = type + "queueHooks";
		return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
			empty: jQuery.Callbacks( "once memory" ).add( function() {
				dataPriv.remove( elem, [ type + "queue", key ] );
			} )
		} );
	}
} );

jQuery.fn.extend( {
	queue: function( type, data ) {
		var setter = 2;

		if ( typeof type !== "string" ) {
			data = type;
			type = "fx";
			setter--;
		}

		if ( arguments.length < setter ) {
			return jQuery.queue( this[ 0 ], type );
		}

		return data === undefined ?
			this :
			this.each( function() {
				var queue = jQuery.queue( this, type, data );

				// Ensure a hooks for this queue
				jQuery._queueHooks( this, type );

				if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
					jQuery.dequeue( this, type );
				}
			} );
	},
	dequeue: function( type ) {
		return this.each( function() {
			jQuery.dequeue( this, type );
		} );
	},
	clearQueue: function( type ) {
		return this.queue( type || "fx", [] );
	},

	// Get a promise resolved when queues of a certain type
	// are emptied (fx is the type by default)
	promise: function( type, obj ) {
		var tmp,
			count = 1,
			defer = jQuery.Deferred(),
			elements = this,
			i = this.length,
			resolve = function() {
				if ( !( --count ) ) {
					defer.resolveWith( elements, [ elements ] );
				}
			};

		if ( typeof type !== "string" ) {
			obj = type;
			type = undefined;
		}
		type = type || "fx";

		while ( i-- ) {
			tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
			if ( tmp && tmp.empty ) {
				count++;
				tmp.empty.add( resolve );
			}
		}
		resolve();
		return defer.promise( obj );
	}
} );
var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;

var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );


var cssExpand = [ "Top", "Right", "Bottom", "Left" ];

var documentElement = document.documentElement;



	var isAttached = function( elem ) {
			return jQuery.contains( elem.ownerDocument, elem );
		},
		composed = { composed: true };

	// Support: IE 9 - 11+, Edge 12 - 18+, iOS 10.0 - 10.2 only
	// Check attachment across shadow DOM boundaries when possible (gh-3504)
	// Support: iOS 10.0-10.2 only
	// Early iOS 10 versions support `attachShadow` but not `getRootNode`,
	// leading to errors. We need to check for `getRootNode`.
	if ( documentElement.getRootNode ) {
		isAttached = function( elem ) {
			return jQuery.contains( elem.ownerDocument, elem ) ||
				elem.getRootNode( composed ) === elem.ownerDocument;
		};
	}
var isHiddenWithinTree = function( elem, el ) {

		// isHiddenWithinTree might be called from jQuery#filter function;
		// in that case, element will be second argument
		elem = el || elem;

		// Inline style trumps all
		return elem.style.display === "none" ||
			elem.style.display === "" &&

			// Otherwise, check computed style
			// Support: Firefox <=43 - 45
			// Disconnected elements can have computed display: none, so first confirm that elem is
			// in the document.
			isAttached( elem ) &&

			jQuery.css( elem, "display" ) === "none";
	};



function adjustCSS( elem, prop, valueParts, tween ) {
	var adjusted, scale,
		maxIterations = 20,
		currentValue = tween ?
			function() {
				return tween.cur();
			} :
			function() {
				return jQuery.css( elem, prop, "" );
			},
		initial = currentValue(),
		unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),

		// Starting value computation is required for potential unit mismatches
		initialInUnit = elem.nodeType &&
			( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
			rcssNum.exec( jQuery.css( elem, prop ) );

	if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {

		// Support: Firefox <=54
		// Halve the iteration target value to prevent interference from CSS upper bounds (gh-2144)
		initial = initial / 2;

		// Trust units reported by jQuery.css
		unit = unit || initialInUnit[ 3 ];

		// Iteratively approximate from a nonzero starting point
		initialInUnit = +initial || 1;

		while ( maxIterations-- ) {

			// Evaluate and update our best guess (doubling guesses that zero out).
			// Finish if the scale equals or crosses 1 (making the old*new product non-positive).
			jQuery.style( elem, prop, initialInUnit + unit );
			if ( ( 1 - scale ) * ( 1 - ( scale = currentValue() / initial || 0.5 ) ) <= 0 ) {
				maxIterations = 0;
			}
			initialInUnit = initialInUnit / scale;

		}

		initialInUnit = initialInUnit * 2;
		jQuery.style( elem, prop, initialInUnit + unit );

		// Make sure we update the tween properties later on
		valueParts = valueParts || [];
	}

	if ( valueParts ) {
		initialInUnit = +initialInUnit || +initial || 0;

		// Apply relative offset (+=/-=) if specified
		adjusted = valueParts[ 1 ] ?
			initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
			+valueParts[ 2 ];
		if ( tween ) {
			tween.unit = unit;
			tween.start = initialInUnit;
			tween.end = adjusted;
		}
	}
	return adjusted;
}


var defaultDisplayMap = {};

function getDefaultDisplay( elem ) {
	var temp,
		doc = elem.ownerDocument,
		nodeName = elem.nodeName,
		display = defaultDisplayMap[ nodeName ];

	if ( display ) {
		return display;
	}

	temp = doc.body.appendChild( doc.createElement( nodeName ) );
	display = jQuery.css( temp, "display" );

	temp.parentNode.removeChild( temp );

	if ( display === "none" ) {
		display = "block";
	}
	defaultDisplayMap[ nodeName ] = display;

	return display;
}

function showHide( elements, show ) {
	var display, elem,
		values = [],
		index = 0,
		length = elements.length;

	// Determine new display value for elements that need to change
	for ( ; index < length; index++ ) {
		elem = elements[ index ];
		if ( !elem.style ) {
			continue;
		}

		display = elem.style.display;
		if ( show ) {

			// Since we force visibility upon cascade-hidden elements, an immediate (and slow)
			// check is required in this first loop unless we have a nonempty display value (either
			// inline or about-to-be-restored)
			if ( display === "none" ) {
				values[ index ] = dataPriv.get( elem, "display" ) || null;
				if ( !values[ index ] ) {
					elem.style.display = "";
				}
			}
			if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
				values[ index ] = getDefaultDisplay( elem );
			}
		} else {
			if ( display !== "none" ) {
				values[ index ] = "none";

				// Remember what we're overwriting
				dataPriv.set( elem, "display", display );
			}
		}
	}

	// Set the display of the elements in a second loop to avoid constant reflow
	for ( index = 0; index < length; index++ ) {
		if ( values[ index ] != null ) {
			elements[ index ].style.display = values[ index ];
		}
	}

	return elements;
}

jQuery.fn.extend( {
	show: function() {
		return showHide( this, true );
	},
	hide: function() {
		return showHide( this );
	},
	toggle: function( state ) {
		if ( typeof state === "boolean" ) {
			return state ? this.show() : this.hide();
		}

		return this.each( function() {
			if ( isHiddenWithinTree( this ) ) {
				jQuery( this ).show();
			} else {
				jQuery( this ).hide();
			}
		} );
	}
} );
var rcheckableType = ( /^(?:checkbox|radio)$/i );

var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]*)/i );

var rscriptType = ( /^$|^module$|\/(?:java|ecma)script/i );



( function() {
	var fragment = document.createDocumentFragment(),
		div = fragment.appendChild( document.createElement( "div" ) ),
		input = document.createElement( "input" );

	// Support: Android 4.0 - 4.3 only
	// Check state lost if the name is set (#11217)
	// Support: Windows Web Apps (WWA)
	// `name` and `type` must use .setAttribute for WWA (#14901)
	input.setAttribute( "type", "radio" );
	input.setAttribute( "checked", "checked" );
	input.setAttribute( "name", "t" );

	div.appendChild( input );

	// Support: Android <=4.1 only
	// Older WebKit doesn't clone checked state correctly in fragments
	support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;

	// Support: IE <=11 only
	// Make sure textarea (and checkbox) defaultValue is properly cloned
	div.innerHTML = "<textarea>x</textarea>";
	support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;

	// Support: IE <=9 only
	// IE <=9 replaces <option> tags with their contents when inserted outside of
	// the select element.
	div.innerHTML = "<option></option>";
	support.option = !!div.lastChild;
} )();


// We have to close these tags to support XHTML (#13200)
var wrapMap = {

	// XHTML parsers do not magically insert elements in the
	// same way that tag soup parsers do. So we cannot shorten
	// this by omitting <tbody> or other required elements.
	thead: [ 1, "<table>", "</table>" ],
	col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
	tr: [ 2, "<table><tbody>", "</tbody></table>" ],
	td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],

	_default: [ 0, "", "" ]
};

wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;

// Support: IE <=9 only
if ( !support.option ) {
	wrapMap.optgroup = wrapMap.option = [ 1, "<select multiple='multiple'>", "</select>" ];
}


function getAll( context, tag ) {

	// Support: IE <=9 - 11 only
	// Use typeof to avoid zero-argument method invocation on host objects (#15151)
	var ret;

	if ( typeof context.getElementsByTagName !== "undefined" ) {
		ret = context.getElementsByTagName( tag || "*" );

	} else if ( typeof context.querySelectorAll !== "undefined" ) {
		ret = context.querySelectorAll( tag || "*" );

	} else {
		ret = [];
	}

	if ( tag === undefined || tag && nodeName( context, tag ) ) {
		return jQuery.merge( [ context ], ret );
	}

	return ret;
}


// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {
	var i = 0,
		l = elems.length;

	for ( ; i < l; i++ ) {
		dataPriv.set(
			elems[ i ],
			"globalEval",
			!refElements || dataPriv.get( refElements[ i ], "globalEval" )
		);
	}
}


var rhtml = /<|&#?\w+;/;

function buildFragment( elems, context, scripts, selection, ignored ) {
	var elem, tmp, tag, wrap, attached, j,
		fragment = context.createDocumentFragment(),
		nodes = [],
		i = 0,
		l = elems.length;

	for ( ; i < l; i++ ) {
		elem = elems[ i ];

		if ( elem || elem === 0 ) {

			// Add nodes directly
			if ( toType( elem ) === "object" ) {

				// Support: Android <=4.0 only, PhantomJS 1 only
				// push.apply(_, arraylike) throws on ancient WebKit
				jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );

			// Convert non-html into a text node
			} else if ( !rhtml.test( elem ) ) {
				nodes.push( context.createTextNode( elem ) );

			// Convert html into DOM nodes
			} else {
				tmp = tmp || fragment.appendChild( context.createElement( "div" ) );

				// Deserialize a standard representation
				tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
				wrap = wrapMap[ tag ] || wrapMap._default;
				tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];

				// Descend through wrappers to the right content
				j = wrap[ 0 ];
				while ( j-- ) {
					tmp = tmp.lastChild;
				}

				// Support: Android <=4.0 only, PhantomJS 1 only
				// push.apply(_, arraylike) throws on ancient WebKit
				jQuery.merge( nodes, tmp.childNodes );

				// Remember the top-level container
				tmp = fragment.firstChild;

				// Ensure the created nodes are orphaned (#12392)
				tmp.textContent = "";
			}
		}
	}

	// Remove wrapper from fragment
	fragment.textContent = "";

	i = 0;
	while ( ( elem = nodes[ i++ ] ) ) {

		// Skip elements already in the context collection (trac-4087)
		if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
			if ( ignored ) {
				ignored.push( elem );
			}
			continue;
		}

		attached = isAttached( elem );

		// Append to fragment
		tmp = getAll( fragment.appendChild( elem ), "script" );

		// Preserve script evaluation history
		if ( attached ) {
			setGlobalEval( tmp );
		}

		// Capture executables
		if ( scripts ) {
			j = 0;
			while ( ( elem = tmp[ j++ ] ) ) {
				if ( rscriptType.test( elem.type || "" ) ) {
					scripts.push( elem );
				}
			}
		}
	}

	return fragment;
}


var rtypenamespace = /^([^.]*)(?:\.(.+)|)/;

function returnTrue() {
	return true;
}

function returnFalse() {
	return false;
}

// Support: IE <=9 - 11+
// focus() and blur() are asynchronous, except when they are no-op.
// So expect focus to be synchronous when the element is already active,
// and blur to be synchronous when the element is not already active.
// (focus and blur are always synchronous in other supported browsers,
// this just defines when we can count on it).
function expectSync( elem, type ) {
	return ( elem === safeActiveElement() ) === ( type === "focus" );
}

// Support: IE <=9 only
// Accessing document.activeElement can throw unexpectedly
// https://bugs.jquery.com/ticket/13393
function safeActiveElement() {
	try {
		return document.activeElement;
	} catch ( err ) { }
}

function on( elem, types, selector, data, fn, one ) {
	var origFn, type;

	// Types can be a map of types/handlers
	if ( typeof types === "object" ) {

		// ( types-Object, selector, data )
		if ( typeof selector !== "string" ) {

			// ( types-Object, data )
			data = data || selector;
			selector = undefined;
		}
		for ( type in types ) {
			on( elem, type, selector, data, types[ type ], one );
		}
		return elem;
	}

	if ( data == null && fn == null ) {

		// ( types, fn )
		fn = selector;
		data = selector = undefined;
	} else if ( fn == null ) {
		if ( typeof selector === "string" ) {

			// ( types, selector, fn )
			fn = data;
			data = undefined;
		} else {

			// ( types, data, fn )
			fn = data;
			data = selector;
			selector = undefined;
		}
	}
	if ( fn === false ) {
		fn = returnFalse;
	} else if ( !fn ) {
		return elem;
	}

	if ( one === 1 ) {
		origFn = fn;
		fn = function( event ) {

			// Can use an empty set, since event contains the info
			jQuery().off( event );
			return origFn.apply( this, arguments );
		};

		// Use same guid so caller can remove using origFn
		fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
	}
	return elem.each( function() {
		jQuery.event.add( this, types, fn, data, selector );
	} );
}

/*
 * Helper functions for managing events -- not part of the public interface.
 * Props to Dean Edwards' addEvent library for many of the ideas.
 */
jQuery.event = {

	global: {},

	add: function( elem, types, handler, data, selector ) {

		var handleObjIn, eventHandle, tmp,
			events, t, handleObj,
			special, handlers, type, namespaces, origType,
			elemData = dataPriv.get( elem );

		// Only attach events to objects that accept data
		if ( !acceptData( elem ) ) {
			return;
		}

		// Caller can pass in an object of custom data in lieu of the handler
		if ( handler.handler ) {
			handleObjIn = handler;
			handler = handleObjIn.handler;
			selector = handleObjIn.selector;
		}

		// Ensure that invalid selectors throw exceptions at attach time
		// Evaluate against documentElement in case elem is a non-element node (e.g., document)
		if ( selector ) {
			jQuery.find.matchesSelector( documentElement, selector );
		}

		// Make sure that the handler has a unique ID, used to find/remove it later
		if ( !handler.guid ) {
			handler.guid = jQuery.guid++;
		}

		// Init the element's event structure and main handler, if this is the first
		if ( !( events = elemData.events ) ) {
			events = elemData.events = Object.create( null );
		}
		if ( !( eventHandle = elemData.handle ) ) {
			eventHandle = elemData.handle = function( e ) {

				// Discard the second event of a jQuery.event.trigger() and
				// when an event is called after a page has unloaded
				return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
					jQuery.event.dispatch.apply( elem, arguments ) : undefined;
			};
		}

		// Handle multiple events separated by a space
		types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
		t = types.length;
		while ( t-- ) {
			tmp = rtypenamespace.exec( types[ t ] ) || [];
			type = origType = tmp[ 1 ];
			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

			// There *must* be a type, no attaching namespace-only handlers
			if ( !type ) {
				continue;
			}

			// If event changes its type, use the special event handlers for the changed type
			special = jQuery.event.special[ type ] || {};

			// If selector defined, determine special event api type, otherwise given type
			type = ( selector ? special.delegateType : special.bindType ) || type;

			// Update special based on newly reset type
			special = jQuery.event.special[ type ] || {};

			// handleObj is passed to all event handlers
			handleObj = jQuery.extend( {
				type: type,
				origType: origType,
				data: data,
				handler: handler,
				guid: handler.guid,
				selector: selector,
				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
				namespace: namespaces.join( "." )
			}, handleObjIn );

			// Init the event handler queue if we're the first
			if ( !( handlers = events[ type ] ) ) {
				handlers = events[ type ] = [];
				handlers.delegateCount = 0;

				// Only use addEventListener if the special events handler returns false
				if ( !special.setup ||
					special.setup.call( elem, data, namespaces, eventHandle ) === false ) {

					if ( elem.addEventListener ) {
						elem.addEventListener( type, eventHandle );
					}
				}
			}

			if ( special.add ) {
				special.add.call( elem, handleObj );

				if ( !handleObj.handler.guid ) {
					handleObj.handler.guid = handler.guid;
				}
			}

			// Add to the element's handler list, delegates in front
			if ( selector ) {
				handlers.splice( handlers.delegateCount++, 0, handleObj );
			} else {
				handlers.push( handleObj );
			}

			// Keep track of which events have ever been used, for event optimization
			jQuery.event.global[ type ] = true;
		}

	},

	// Detach an event or set of events from an element
	remove: function( elem, types, handler, selector, mappedTypes ) {

		var j, origCount, tmp,
			events, t, handleObj,
			special, handlers, type, namespaces, origType,
			elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );

		if ( !elemData || !( events = elemData.events ) ) {
			return;
		}

		// Once for each type.namespace in types; type may be omitted
		types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
		t = types.length;
		while ( t-- ) {
			tmp = rtypenamespace.exec( types[ t ] ) || [];
			type = origType = tmp[ 1 ];
			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

			// Unbind all events (on this namespace, if provided) for the element
			if ( !type ) {
				for ( type in events ) {
					jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
				}
				continue;
			}

			special = jQuery.event.special[ type ] || {};
			type = ( selector ? special.delegateType : special.bindType ) || type;
			handlers = events[ type ] || [];
			tmp = tmp[ 2 ] &&
				new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );

			// Remove matching events
			origCount = j = handlers.length;
			while ( j-- ) {
				handleObj = handlers[ j ];

				if ( ( mappedTypes || origType === handleObj.origType ) &&
					( !handler || handler.guid === handleObj.guid ) &&
					( !tmp || tmp.test( handleObj.namespace ) ) &&
					( !selector || selector === handleObj.selector ||
						selector === "**" && handleObj.selector ) ) {
					handlers.splice( j, 1 );

					if ( handleObj.selector ) {
						handlers.delegateCount--;
					}
					if ( special.remove ) {
						special.remove.call( elem, handleObj );
					}
				}
			}

			// Remove generic event handler if we removed something and no more handlers exist
			// (avoids potential for endless recursion during removal of special event handlers)
			if ( origCount && !handlers.length ) {
				if ( !special.teardown ||
					special.teardown.call( elem, namespaces, elemData.handle ) === false ) {

					jQuery.removeEvent( elem, type, elemData.handle );
				}

				delete events[ type ];
			}
		}

		// Remove data and the expando if it's no longer used
		if ( jQuery.isEmptyObject( events ) ) {
			dataPriv.remove( elem, "handle events" );
		}
	},

	dispatch: function( nativeEvent ) {

		var i, j, ret, matched, handleObj, handlerQueue,
			args = new Array( arguments.length ),

			// Make a writable jQuery.Event from the native event object
			event = jQuery.event.fix( nativeEvent ),

			handlers = (
				dataPriv.get( this, "events" ) || Object.create( null )
			)[ event.type ] || [],
			special = jQuery.event.special[ event.type ] || {};

		// Use the fix-ed jQuery.Event rather than the (read-only) native event
		args[ 0 ] = event;

		for ( i = 1; i < arguments.length; i++ ) {
			args[ i ] = arguments[ i ];
		}

		event.delegateTarget = this;

		// Call the preDispatch hook for the mapped type, and let it bail if desired
		if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
			return;
		}

		// Determine handlers
		handlerQueue = jQuery.event.handlers.call( this, event, handlers );

		// Run delegates first; they may want to stop propagation beneath us
		i = 0;
		while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
			event.currentTarget = matched.elem;

			j = 0;
			while ( ( handleObj = matched.handlers[ j++ ] ) &&
				!event.isImmediatePropagationStopped() ) {

				// If the event is namespaced, then each handler is only invoked if it is
				// specially universal or its namespaces are a superset of the event's.
				if ( !event.rnamespace || handleObj.namespace === false ||
					event.rnamespace.test( handleObj.namespace ) ) {

					event.handleObj = handleObj;
					event.data = handleObj.data;

					ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
						handleObj.handler ).apply( matched.elem, args );

					if ( ret !== undefined ) {
						if ( ( event.result = ret ) === false ) {
							event.preventDefault();
							event.stopPropagation();
						}
					}
				}
			}
		}

		// Call the postDispatch hook for the mapped type
		if ( special.postDispatch ) {
			special.postDispatch.call( this, event );
		}

		return event.result;
	},

	handlers: function( event, handlers ) {
		var i, handleObj, sel, matchedHandlers, matchedSelectors,
			handlerQueue = [],
			delegateCount = handlers.delegateCount,
			cur = event.target;

		// Find delegate handlers
		if ( delegateCount &&

			// Support: IE <=9
			// Black-hole SVG <use> instance trees (trac-13180)
			cur.nodeType &&

			// Support: Firefox <=42
			// Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
			// https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
			// Support: IE 11 only
			// ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
			!( event.type === "click" && event.button >= 1 ) ) {

			for ( ; cur !== this; cur = cur.parentNode || this ) {

				// Don't check non-elements (#13208)
				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
				if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
					matchedHandlers = [];
					matchedSelectors = {};
					for ( i = 0; i < delegateCount; i++ ) {
						handleObj = handlers[ i ];

						// Don't conflict with Object.prototype properties (#13203)
						sel = handleObj.selector + " ";

						if ( matchedSelectors[ sel ] === undefined ) {
							matchedSelectors[ sel ] = handleObj.needsContext ?
								jQuery( sel, this ).index( cur ) > -1 :
								jQuery.find( sel, this, null, [ cur ] ).length;
						}
						if ( matchedSelectors[ sel ] ) {
							matchedHandlers.push( handleObj );
						}
					}
					if ( matchedHandlers.length ) {
						handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
					}
				}
			}
		}

		// Add the remaining (directly-bound) handlers
		cur = this;
		if ( delegateCount < handlers.length ) {
			handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
		}

		return handlerQueue;
	},

	addProp: function( name, hook ) {
		Object.defineProperty( jQuery.Event.prototype, name, {
			enumerable: true,
			configurable: true,

			get: isFunction( hook ) ?
				function() {
					if ( this.originalEvent ) {
						return hook( this.originalEvent );
					}
				} :
				function() {
					if ( this.originalEvent ) {
						return this.originalEvent[ name ];
					}
				},

			set: function( value ) {
				Object.defineProperty( this, name, {
					enumerable: true,
					configurable: true,
					writable: true,
					value: value
				} );
			}
		} );
	},

	fix: function( originalEvent ) {
		return originalEvent[ jQuery.expando ] ?
			originalEvent :
			new jQuery.Event( originalEvent );
	},

	special: {
		load: {

			// Prevent triggered image.load events from bubbling to window.load
			noBubble: true
		},
		click: {

			// Utilize native event to ensure correct state for checkable inputs
			setup: function( data ) {

				// For mutual compressibility with _default, replace `this` access with a local var.
				// `|| data` is dead code meant only to preserve the variable through minification.
				var el = this || data;

				// Claim the first handler
				if ( rcheckableType.test( el.type ) &&
					el.click && nodeName( el, "input" ) ) {

					// dataPriv.set( el, "click", ... )
					leverageNative( el, "click", returnTrue );
				}

				// Return false to allow normal processing in the caller
				return false;
			},
			trigger: function( data ) {

				// For mutual compressibility with _default, replace `this` access with a local var.
				// `|| data` is dead code meant only to preserve the variable through minification.
				var el = this || data;

				// Force setup before triggering a click
				if ( rcheckableType.test( el.type ) &&
					el.click && nodeName( el, "input" ) ) {

					leverageNative( el, "click" );
				}

				// Return non-false to allow normal event-path propagation
				return true;
			},

			// For cross-browser consistency, suppress native .click() on links
			// Also prevent it if we're currently inside a leveraged native-event stack
			_default: function( event ) {
				var target = event.target;
				return rcheckableType.test( target.type ) &&
					target.click && nodeName( target, "input" ) &&
					dataPriv.get( target, "click" ) ||
					nodeName( target, "a" );
			}
		},

		beforeunload: {
			postDispatch: function( event ) {

				// Support: Firefox 20+
				// Firefox doesn't alert if the returnValue field is not set.
				if ( event.result !== undefined && event.originalEvent ) {
					event.originalEvent.returnValue = event.result;
				}
			}
		}
	}
};

// Ensure the presence of an event listener that handles manually-triggered
// synthetic events by interrupting progress until reinvoked in response to
// *native* events that it fires directly, ensuring that state changes have
// already occurred before other listeners are invoked.
function leverageNative( el, type, expectSync ) {

	// Missing expectSync indicates a trigger call, which must force setup through jQuery.event.add
	if ( !expectSync ) {
		if ( dataPriv.get( el, type ) === undefined ) {
			jQuery.event.add( el, type, returnTrue );
		}
		return;
	}

	// Register the controller as a special universal handler for all event namespaces
	dataPriv.set( el, type, false );
	jQuery.event.add( el, type, {
		namespace: false,
		handler: function( event ) {
			var notAsync, result,
				saved = dataPriv.get( this, type );

			if ( ( event.isTrigger & 1 ) && this[ type ] ) {

				// Interrupt processing of the outer synthetic .trigger()ed event
				// Saved data should be false in such cases, but might be a leftover capture object
				// from an async native handler (gh-4350)
				if ( !saved.length ) {

					// Store arguments for use when handling the inner native event
					// There will always be at least one argument (an event object), so this array
					// will not be confused with a leftover capture object.
					saved = slice.call( arguments );
					dataPriv.set( this, type, saved );

					// Trigger the native event and capture its result
					// Support: IE <=9 - 11+
					// focus() and blur() are asynchronous
					notAsync = expectSync( this, type );
					this[ type ]();
					result = dataPriv.get( this, type );
					if ( saved !== result || notAsync ) {
						dataPriv.set( this, type, false );
					} else {
						result = {};
					}
					if ( saved !== result ) {

						// Cancel the outer synthetic event
						event.stopImmediatePropagation();
						event.preventDefault();

						// Support: Chrome 86+
						// In Chrome, if an element having a focusout handler is blurred by
						// clicking outside of it, it invokes the handler synchronously. If
						// that handler calls `.remove()` on the element, the data is cleared,
						// leaving `result` undefined. We need to guard against this.
						return result && result.value;
					}

				// If this is an inner synthetic event for an event with a bubbling surrogate
				// (focus or blur), assume that the surrogate already propagated from triggering the
				// native event and prevent that from happening again here.
				// This technically gets the ordering wrong w.r.t. to `.trigger()` (in which the
				// bubbling surrogate propagates *after* the non-bubbling base), but that seems
				// less bad than duplication.
				} else if ( ( jQuery.event.special[ type ] || {} ).delegateType ) {
					event.stopPropagation();
				}

			// If this is a native event triggered above, everything is now in order
			// Fire an inner synthetic event with the original arguments
			} else if ( saved.length ) {

				// ...and capture the result
				dataPriv.set( this, type, {
					value: jQuery.event.trigger(

						// Support: IE <=9 - 11+
						// Extend with the prototype to reset the above stopImmediatePropagation()
						jQuery.extend( saved[ 0 ], jQuery.Event.prototype ),
						saved.slice( 1 ),
						this
					)
				} );

				// Abort handling of the native event
				event.stopImmediatePropagation();
			}
		}
	} );
}

jQuery.removeEvent = function( elem, type, handle ) {

	// This "if" is needed for plain objects
	if ( elem.removeEventListener ) {
		elem.removeEventListener( type, handle );
	}
};

jQuery.Event = function( src, props ) {

	// Allow instantiation without the 'new' keyword
	if ( !( this instanceof jQuery.Event ) ) {
		return new jQuery.Event( src, props );
	}

	// Event object
	if ( src && src.type ) {
		this.originalEvent = src;
		this.type = src.type;

		// Events bubbling up the document may have been marked as prevented
		// by a handler lower down the tree; reflect the correct value.
		this.isDefaultPrevented = src.defaultPrevented ||
				src.defaultPrevented === undefined &&

				// Support: Android <=2.3 only
				src.returnValue === false ?
			returnTrue :
			returnFalse;

		// Create target properties
		// Support: Safari <=6 - 7 only
		// Target should not be a text node (#504, #13143)
		this.target = ( src.target && src.target.nodeType === 3 ) ?
			src.target.parentNode :
			src.target;

		this.currentTarget = src.currentTarget;
		this.relatedTarget = src.relatedTarget;

	// Event type
	} else {
		this.type = src;
	}

	// Put explicitly provided properties onto the event object
	if ( props ) {
		jQuery.extend( this, props );
	}

	// Create a timestamp if incoming event doesn't have one
	this.timeStamp = src && src.timeStamp || Date.now();

	// Mark it as fixed
	this[ jQuery.expando ] = true;
};

// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {
	constructor: jQuery.Event,
	isDefaultPrevented: returnFalse,
	isPropagationStopped: returnFalse,
	isImmediatePropagationStopped: returnFalse,
	isSimulated: false,

	preventDefault: function() {
		var e = this.originalEvent;

		this.isDefaultPrevented = returnTrue;

		if ( e && !this.isSimulated ) {
			e.preventDefault();
		}
	},
	stopPropagation: function() {
		var e = this.originalEvent;

		this.isPropagationStopped = returnTrue;

		if ( e && !this.isSimulated ) {
			e.stopPropagation();
		}
	},
	stopImmediatePropagation: function() {
		var e = this.originalEvent;

		this.isImmediatePropagationStopped = returnTrue;

		if ( e && !this.isSimulated ) {
			e.stopImmediatePropagation();
		}

		this.stopPropagation();
	}
};

// Includes all common event props including KeyEvent and MouseEvent specific props
jQuery.each( {
	altKey: true,
	bubbles: true,
	cancelable: true,
	changedTouches: true,
	ctrlKey: true,
	detail: true,
	eventPhase: true,
	metaKey: true,
	pageX: true,
	pageY: true,
	shiftKey: true,
	view: true,
	"char": true,
	code: true,
	charCode: true,
	key: true,
	keyCode: true,
	button: true,
	buttons: true,
	clientX: true,
	clientY: true,
	offsetX: true,
	offsetY: true,
	pointerId: true,
	pointerType: true,
	screenX: true,
	screenY: true,
	targetTouches: true,
	toElement: true,
	touches: true,
	which: true
}, jQuery.event.addProp );

jQuery.each( { focus: "focusin", blur: "focusout" }, function( type, delegateType ) {
	jQuery.event.special[ type ] = {

		// Utilize native event if possible so blur/focus sequence is correct
		setup: function() {

			// Claim the first handler
			// dataPriv.set( this, "focus", ... )
			// dataPriv.set( this, "blur", ... )
			leverageNative( this, type, expectSync );

			// Return false to allow normal processing in the caller
			return false;
		},
		trigger: function() {

			// Force setup before trigger
			leverageNative( this, type );

			// Return non-false to allow normal event-path propagation
			return true;
		},

		// Suppress native focus or blur as it's already being fired
		// in leverageNative.
		_default: function() {
			return true;
		},

		delegateType: delegateType
	};
} );

// Create mouseenter/leave events using mouseover/out and event-time checks
// so that event delegation works in jQuery.
// Do the same for pointerenter/pointerleave and pointerover/pointerout
//
// Support: Safari 7 only
// Safari sends mouseenter too often; see:
// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
// for the description of the bug (it existed in older Chrome versions as well).
jQuery.each( {
	mouseenter: "mouseover",
	mouseleave: "mouseout",
	pointerenter: "pointerover",
	pointerleave: "pointerout"
}, function( orig, fix ) {
	jQuery.event.special[ orig ] = {
		delegateType: fix,
		bindType: fix,

		handle: function( event ) {
			var ret,
				target = this,
				related = event.relatedTarget,
				handleObj = event.handleObj;

			// For mouseenter/leave call the handler if related is outside the target.
			// NB: No relatedTarget if the mouse left/entered the browser window
			if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
				event.type = handleObj.origType;
				ret = handleObj.handler.apply( this, arguments );
				event.type = fix;
			}
			return ret;
		}
	};
} );

jQuery.fn.extend( {

	on: function( types, selector, data, fn ) {
		return on( this, types, selector, data, fn );
	},
	one: function( types, selector, data, fn ) {
		return on( this, types, selector, data, fn, 1 );
	},
	off: function( types, selector, fn ) {
		var handleObj, type;
		if ( types && types.preventDefault && types.handleObj ) {

			// ( event )  dispatched jQuery.Event
			handleObj = types.handleObj;
			jQuery( types.delegateTarget ).off(
				handleObj.namespace ?
					handleObj.origType + "." + handleObj.namespace :
					handleObj.origType,
				handleObj.selector,
				handleObj.handler
			);
			return this;
		}
		if ( typeof types === "object" ) {

			// ( types-object [, selector] )
			for ( type in types ) {
				this.off( type, selector, types[ type ] );
			}
			return this;
		}
		if ( selector === false || typeof selector === "function" ) {

			// ( types [, fn] )
			fn = selector;
			selector = undefined;
		}
		if ( fn === false ) {
			fn = returnFalse;
		}
		return this.each( function() {
			jQuery.event.remove( this, types, fn, selector );
		} );
	}
} );


var

	// Support: IE <=10 - 11, Edge 12 - 13 only
	// In IE/Edge using regex groups here causes severe slowdowns.
	// See https://connect.microsoft.com/IE/feedback/details/1736512/
	rnoInnerhtml = /<script|<style|<link/i,

	// checked="checked" or checked
	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;

// Prefer a tbody over its parent table for containing new rows
function manipulationTarget( elem, content ) {
	if ( nodeName( elem, "table" ) &&
		nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {

		return jQuery( elem ).children( "tbody" )[ 0 ] || elem;
	}

	return elem;
}

// Replace/restore the type attribute of script elements for safe DOM manipulation
function disableScript( elem ) {
	elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
	return elem;
}
function restoreScript( elem ) {
	if ( ( elem.type || "" ).slice( 0, 5 ) === "true/" ) {
		elem.type = elem.type.slice( 5 );
	} else {
		elem.removeAttribute( "type" );
	}

	return elem;
}

function cloneCopyEvent( src, dest ) {
	var i, l, type, pdataOld, udataOld, udataCur, events;

	if ( dest.nodeType !== 1 ) {
		return;
	}

	// 1. Copy private data: events, handlers, etc.
	if ( dataPriv.hasData( src ) ) {
		pdataOld = dataPriv.get( src );
		events = pdataOld.events;

		if ( events ) {
			dataPriv.remove( dest, "handle events" );

			for ( type in events ) {
				for ( i = 0, l = events[ type ].length; i < l; i++ ) {
					jQuery.event.add( dest, type, events[ type ][ i ] );
				}
			}
		}
	}

	// 2. Copy user data
	if ( dataUser.hasData( src ) ) {
		udataOld = dataUser.access( src );
		udataCur = jQuery.extend( {}, udataOld );

		dataUser.set( dest, udataCur );
	}
}

// Fix IE bugs, see support tests
function fixInput( src, dest ) {
	var nodeName = dest.nodeName.toLowerCase();

	// Fails to persist the checked state of a cloned checkbox or radio button.
	if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
		dest.checked = src.checked;

	// Fails to return the selected option to the default selected state when cloning options
	} else if ( nodeName === "input" || nodeName === "textarea" ) {
		dest.defaultValue = src.defaultValue;
	}
}

function domManip( collection, args, callback, ignored ) {

	// Flatten any nested arrays
	args = flat( args );

	var fragment, first, scripts, hasScripts, node, doc,
		i = 0,
		l = collection.length,
		iNoClone = l - 1,
		value = args[ 0 ],
		valueIsFunction = isFunction( value );

	// We can't cloneNode fragments that contain checked, in WebKit
	if ( valueIsFunction ||
			( l > 1 && typeof value === "string" &&
				!support.checkClone && rchecked.test( value ) ) ) {
		return collection.each( function( index ) {
			var self = collection.eq( index );
			if ( valueIsFunction ) {
				args[ 0 ] = value.call( this, index, self.html() );
			}
			domManip( self, args, callback, ignored );
		} );
	}

	if ( l ) {
		fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
		first = fragment.firstChild;

		if ( fragment.childNodes.length === 1 ) {
			fragment = first;
		}

		// Require either new content or an interest in ignored elements to invoke the callback
		if ( first || ignored ) {
			scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
			hasScripts = scripts.length;

			// Use the original fragment for the last item
			// instead of the first because it can end up
			// being emptied incorrectly in certain situations (#8070).
			for ( ; i < l; i++ ) {
				node = fragment;

				if ( i !== iNoClone ) {
					node = jQuery.clone( node, true, true );

					// Keep references to cloned scripts for later restoration
					if ( hasScripts ) {

						// Support: Android <=4.0 only, PhantomJS 1 only
						// push.apply(_, arraylike) throws on ancient WebKit
						jQuery.merge( scripts, getAll( node, "script" ) );
					}
				}

				callback.call( collection[ i ], node, i );
			}

			if ( hasScripts ) {
				doc = scripts[ scripts.length - 1 ].ownerDocument;

				// Reenable scripts
				jQuery.map( scripts, restoreScript );

				// Evaluate executable scripts on first document insertion
				for ( i = 0; i < hasScripts; i++ ) {
					node = scripts[ i ];
					if ( rscriptType.test( node.type || "" ) &&
						!dataPriv.access( node, "globalEval" ) &&
						jQuery.contains( doc, node ) ) {

						if ( node.src && ( node.type || "" ).toLowerCase()  !== "module" ) {

							// Optional AJAX dependency, but won't run scripts if not present
							if ( jQuery._evalUrl && !node.noModule ) {
								jQuery._evalUrl( node.src, {
									nonce: node.nonce || node.getAttribute( "nonce" )
								}, doc );
							}
						} else {
							DOMEval( node.textContent.replace( rcleanScript, "" ), node, doc );
						}
					}
				}
			}
		}
	}

	return collection;
}

function remove( elem, selector, keepData ) {
	var node,
		nodes = selector ? jQuery.filter( selector, elem ) : elem,
		i = 0;

	for ( ; ( node = nodes[ i ] ) != null; i++ ) {
		if ( !keepData && node.nodeType === 1 ) {
			jQuery.cleanData( getAll( node ) );
		}

		if ( node.parentNode ) {
			if ( keepData && isAttached( node ) ) {
				setGlobalEval( getAll( node, "script" ) );
			}
			node.parentNode.removeChild( node );
		}
	}

	return elem;
}

jQuery.extend( {
	htmlPrefilter: function( html ) {
		return html;
	},

	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
		var i, l, srcElements, destElements,
			clone = elem.cloneNode( true ),
			inPage = isAttached( elem );

		// Fix IE cloning issues
		if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
				!jQuery.isXMLDoc( elem ) ) {

			// We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
			destElements = getAll( clone );
			srcElements = getAll( elem );

			for ( i = 0, l = srcElements.length; i < l; i++ ) {
				fixInput( srcElements[ i ], destElements[ i ] );
			}
		}

		// Copy the events from the original to the clone
		if ( dataAndEvents ) {
			if ( deepDataAndEvents ) {
				srcElements = srcElements || getAll( elem );
				destElements = destElements || getAll( clone );

				for ( i = 0, l = srcElements.length; i < l; i++ ) {
					cloneCopyEvent( srcElements[ i ], destElements[ i ] );
				}
			} else {
				cloneCopyEvent( elem, clone );
			}
		}

		// Preserve script evaluation history
		destElements = getAll( clone, "script" );
		if ( destElements.length > 0 ) {
			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
		}

		// Return the cloned set
		return clone;
	},

	cleanData: function( elems ) {
		var data, elem, type,
			special = jQuery.event.special,
			i = 0;

		for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
			if ( acceptData( elem ) ) {
				if ( ( data = elem[ dataPriv.expando ] ) ) {
					if ( data.events ) {
						for ( type in data.events ) {
							if ( special[ type ] ) {
								jQuery.event.remove( elem, type );

							// This is a shortcut to avoid jQuery.event.remove's overhead
							} else {
								jQuery.removeEvent( elem, type, data.handle );
							}
						}
					}

					// Support: Chrome <=35 - 45+
					// Assign undefined instead of using delete, see Data#remove
					elem[ dataPriv.expando ] = undefined;
				}
				if ( elem[ dataUser.expando ] ) {

					// Support: Chrome <=35 - 45+
					// Assign undefined instead of using delete, see Data#remove
					elem[ dataUser.expando ] = undefined;
				}
			}
		}
	}
} );

jQuery.fn.extend( {
	detach: function( selector ) {
		return remove( this, selector, true );
	},

	remove: function( selector ) {
		return remove( this, selector );
	},

	text: function( value ) {
		return access( this, function( value ) {
			return value === undefined ?
				jQuery.text( this ) :
				this.empty().each( function() {
					if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
						this.textContent = value;
					}
				} );
		}, null, value, arguments.length );
	},

	append: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
				var target = manipulationTarget( this, elem );
				target.appendChild( elem );
			}
		} );
	},

	prepend: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
				var target = manipulationTarget( this, elem );
				target.insertBefore( elem, target.firstChild );
			}
		} );
	},

	before: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.parentNode ) {
				this.parentNode.insertBefore( elem, this );
			}
		} );
	},

	after: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.parentNode ) {
				this.parentNode.insertBefore( elem, this.nextSibling );
			}
		} );
	},

	empty: function() {
		var elem,
			i = 0;

		for ( ; ( elem = this[ i ] ) != null; i++ ) {
			if ( elem.nodeType === 1 ) {

				// Prevent memory leaks
				jQuery.cleanData( getAll( elem, false ) );

				// Remove any remaining nodes
				elem.textContent = "";
			}
		}

		return this;
	},

	clone: function( dataAndEvents, deepDataAndEvents ) {
		dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
		deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;

		return this.map( function() {
			return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
		} );
	},

	html: function( value ) {
		return access( this, function( value ) {
			var elem = this[ 0 ] || {},
				i = 0,
				l = this.length;

			if ( value === undefined && elem.nodeType === 1 ) {
				return elem.innerHTML;
			}

			// See if we can take a shortcut and just use innerHTML
			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
				!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {

				value = jQuery.htmlPrefilter( value );

				try {
					for ( ; i < l; i++ ) {
						elem = this[ i ] || {};

						// Remove element nodes and prevent memory leaks
						if ( elem.nodeType === 1 ) {
							jQuery.cleanData( getAll( elem, false ) );
							elem.innerHTML = value;
						}
					}

					elem = 0;

				// If using innerHTML throws an exception, use the fallback method
				} catch ( e ) {}
			}

			if ( elem ) {
				this.empty().append( value );
			}
		}, null, value, arguments.length );
	},

	replaceWith: function() {
		var ignored = [];

		// Make the changes, replacing each non-ignored context element with the new content
		return domManip( this, arguments, function( elem ) {
			var parent = this.parentNode;

			if ( jQuery.inArray( this, ignored ) < 0 ) {
				jQuery.cleanData( getAll( this ) );
				if ( parent ) {
					parent.replaceChild( elem, this );
				}
			}

		// Force callback invocation
		}, ignored );
	}
} );

jQuery.each( {
	appendTo: "append",
	prependTo: "prepend",
	insertBefore: "before",
	insertAfter: "after",
	replaceAll: "replaceWith"
}, function( name, original ) {
	jQuery.fn[ name ] = function( selector ) {
		var elems,
			ret = [],
			insert = jQuery( selector ),
			last = insert.length - 1,
			i = 0;

		for ( ; i <= last; i++ ) {
			elems = i === last ? this : this.clone( true );
			jQuery( insert[ i ] )[ original ]( elems );

			// Support: Android <=4.0 only, PhantomJS 1 only
			// .get() because push.apply(_, arraylike) throws on ancient WebKit
			push.apply( ret, elems.get() );
		}

		return this.pushStack( ret );
	};
} );
var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );

var getStyles = function( elem ) {

		// Support: IE <=11 only, Firefox <=30 (#15098, #14150)
		// IE throws on elements created in popups
		// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
		var view = elem.ownerDocument.defaultView;

		if ( !view || !view.opener ) {
			view = window;
		}

		return view.getComputedStyle( elem );
	};

var swap = function( elem, options, callback ) {
	var ret, name,
		old = {};

	// Remember the old values, and insert the new ones
	for ( name in options ) {
		old[ name ] = elem.style[ name ];
		elem.style[ name ] = options[ name ];
	}

	ret = callback.call( elem );

	// Revert the old values
	for ( name in options ) {
		elem.style[ name ] = old[ name ];
	}

	return ret;
};


var rboxStyle = new RegExp( cssExpand.join( "|" ), "i" );



( function() {

	// Executing both pixelPosition & boxSizingReliable tests require only one layout
	// so they're executed at the same time to save the second computation.
	function computeStyleTests() {

		// This is a singleton, we need to execute it only once
		if ( !div ) {
			return;
		}

		container.style.cssText = "position:absolute;left:-11111px;width:60px;" +
			"margin-top:1px;padding:0;border:0";
		div.style.cssText =
			"position:relative;display:block;box-sizing:border-box;overflow:scroll;" +
			"margin:auto;border:1px;padding:1px;" +
			"width:60%;top:1%";
		documentElement.appendChild( container ).appendChild( div );

		var divStyle = window.getComputedStyle( div );
		pixelPositionVal = divStyle.top !== "1%";

		// Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
		reliableMarginLeftVal = roundPixelMeasures( divStyle.marginLeft ) === 12;

		// Support: Android 4.0 - 4.3 only, Safari <=9.1 - 10.1, iOS <=7.0 - 9.3
		// Some styles come back with percentage values, even though they shouldn't
		div.style.right = "60%";
		pixelBoxStylesVal = roundPixelMeasures( divStyle.right ) === 36;

		// Support: IE 9 - 11 only
		// Detect misreporting of content dimensions for box-sizing:border-box elements
		boxSizingReliableVal = roundPixelMeasures( divStyle.width ) === 36;

		// Support: IE 9 only
		// Detect overflow:scroll screwiness (gh-3699)
		// Support: Chrome <=64
		// Don't get tricked when zoom affects offsetWidth (gh-4029)
		div.style.position = "absolute";
		scrollboxSizeVal = roundPixelMeasures( div.offsetWidth / 3 ) === 12;

		documentElement.removeChild( container );

		// Nullify the div so it wouldn't be stored in the memory and
		// it will also be a sign that checks already performed
		div = null;
	}

	function roundPixelMeasures( measure ) {
		return Math.round( parseFloat( measure ) );
	}

	var pixelPositionVal, boxSizingReliableVal, scrollboxSizeVal, pixelBoxStylesVal,
		reliableTrDimensionsVal, reliableMarginLeftVal,
		container = document.createElement( "div" ),
		div = document.createElement( "div" );

	// Finish early in limited (non-browser) environments
	if ( !div.style ) {
		return;
	}

	// Support: IE <=9 - 11 only
	// Style of cloned element affects source element cloned (#8908)
	div.style.backgroundClip = "content-box";
	div.cloneNode( true ).style.backgroundClip = "";
	support.clearCloneStyle = div.style.backgroundClip === "content-box";

	jQuery.extend( support, {
		boxSizingReliable: function() {
			computeStyleTests();
			return boxSizingReliableVal;
		},
		pixelBoxStyles: function() {
			computeStyleTests();
			return pixelBoxStylesVal;
		},
		pixelPosition: function() {
			computeStyleTests();
			return pixelPositionVal;
		},
		reliableMarginLeft: function() {
			computeStyleTests();
			return reliableMarginLeftVal;
		},
		scrollboxSize: function() {
			computeStyleTests();
			return scrollboxSizeVal;
		},

		// Support: IE 9 - 11+, Edge 15 - 18+
		// IE/Edge misreport `getComputedStyle` of table rows with width/height
		// set in CSS while `offset*` properties report correct values.
		// Behavior in IE 9 is more subtle than in newer versions & it passes
		// some versions of this test; make sure not to make it pass there!
		//
		// Support: Firefox 70+
		// Only Firefox includes border widths
		// in computed dimensions. (gh-4529)
		reliableTrDimensions: function() {
			var table, tr, trChild, trStyle;
			if ( reliableTrDimensionsVal == null ) {
				table = document.createElement( "table" );
				tr = document.createElement( "tr" );
				trChild = document.createElement( "div" );

				table.style.cssText = "position:absolute;left:-11111px;border-collapse:separate";
				tr.style.cssText = "border:1px solid";

				// Support: Chrome 86+
				// Height set through cssText does not get applied.
				// Computed height then comes back as 0.
				tr.style.height = "1px";
				trChild.style.height = "9px";

				// Support: Android 8 Chrome 86+
				// In our bodyBackground.html iframe,
				// display for all div elements is set to "inline",
				// which causes a problem only in Android 8 Chrome 86.
				// Ensuring the div is display: block
				// gets around this issue.
				trChild.style.display = "block";

				documentElement
					.appendChild( table )
					.appendChild( tr )
					.appendChild( trChild );

				trStyle = window.getComputedStyle( tr );
				reliableTrDimensionsVal = ( parseInt( trStyle.height, 10 ) +
					parseInt( trStyle.borderTopWidth, 10 ) +
					parseInt( trStyle.borderBottomWidth, 10 ) ) === tr.offsetHeight;

				documentElement.removeChild( table );
			}
			return reliableTrDimensionsVal;
		}
	} );
} )();


function curCSS( elem, name, computed ) {
	var width, minWidth, maxWidth, ret,

		// Support: Firefox 51+
		// Retrieving style before computed somehow
		// fixes an issue with getting wrong values
		// on detached elements
		style = elem.style;

	computed = computed || getStyles( elem );

	// getPropertyValue is needed for:
	//   .css('filter') (IE 9 only, #12537)
	//   .css('--customProperty) (#3144)
	if ( computed ) {
		ret = computed.getPropertyValue( name ) || computed[ name ];

		if ( ret === "" && !isAttached( elem ) ) {
			ret = jQuery.style( elem, name );
		}

		// A tribute to the "awesome hack by Dean Edwards"
		// Android Browser returns percentage for some values,
		// but width seems to be reliably pixels.
		// This is against the CSSOM draft spec:
		// https://drafts.csswg.org/cssom/#resolved-values
		if ( !support.pixelBoxStyles() && rnumnonpx.test( ret ) && rboxStyle.test( name ) ) {

			// Remember the original values
			width = style.width;
			minWidth = style.minWidth;
			maxWidth = style.maxWidth;

			// Put in the new values to get a computed value out
			style.minWidth = style.maxWidth = style.width = ret;
			ret = computed.width;

			// Revert the changed values
			style.width = width;
			style.minWidth = minWidth;
			style.maxWidth = maxWidth;
		}
	}

	return ret !== undefined ?

		// Support: IE <=9 - 11 only
		// IE returns zIndex value as an integer.
		ret + "" :
		ret;
}


function addGetHookIf( conditionFn, hookFn ) {

	// Define the hook, we'll check on the first run if it's really needed.
	return {
		get: function() {
			if ( conditionFn() ) {

				// Hook not needed (or it's not possible to use it due
				// to missing dependency), remove it.
				delete this.get;
				return;
			}

			// Hook needed; redefine it so that the support test is not executed again.
			return ( this.get = hookFn ).apply( this, arguments );
		}
	};
}


var cssPrefixes = [ "Webkit", "Moz", "ms" ],
	emptyStyle = document.createElement( "div" ).style,
	vendorProps = {};

// Return a vendor-prefixed property or undefined
function vendorPropName( name ) {

	// Check for vendor prefixed names
	var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
		i = cssPrefixes.length;

	while ( i-- ) {
		name = cssPrefixes[ i ] + capName;
		if ( name in emptyStyle ) {
			return name;
		}
	}
}

// Return a potentially-mapped jQuery.cssProps or vendor prefixed property
function finalPropName( name ) {
	var final = jQuery.cssProps[ name ] || vendorProps[ name ];

	if ( final ) {
		return final;
	}
	if ( name in emptyStyle ) {
		return name;
	}
	return vendorProps[ name ] = vendorPropName( name ) || name;
}


var

	// Swappable if display is none or starts with table
	// except "table", "table-cell", or "table-caption"
	// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
	rdisplayswap = /^(none|table(?!-c[ea]).+)/,
	rcustomProp = /^--/,
	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
	cssNormalTransform = {
		letterSpacing: "0",
		fontWeight: "400"
	};

function setPositiveNumber( _elem, value, subtract ) {

	// Any relative (+/-) values have already been
	// normalized at this point
	var matches = rcssNum.exec( value );
	return matches ?

		// Guard against undefined "subtract", e.g., when used as in cssHooks
		Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
		value;
}

function boxModelAdjustment( elem, dimension, box, isBorderBox, styles, computedVal ) {
	var i = dimension === "width" ? 1 : 0,
		extra = 0,
		delta = 0;

	// Adjustment may not be necessary
	if ( box === ( isBorderBox ? "border" : "content" ) ) {
		return 0;
	}

	for ( ; i < 4; i += 2 ) {

		// Both box models exclude margin
		if ( box === "margin" ) {
			delta += jQuery.css( elem, box + cssExpand[ i ], true, styles );
		}

		// If we get here with a content-box, we're seeking "padding" or "border" or "margin"
		if ( !isBorderBox ) {

			// Add padding
			delta += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );

			// For "border" or "margin", add border
			if ( box !== "padding" ) {
				delta += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );

			// But still keep track of it otherwise
			} else {
				extra += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
			}

		// If we get here with a border-box (content + padding + border), we're seeking "content" or
		// "padding" or "margin"
		} else {

			// For "content", subtract padding
			if ( box === "content" ) {
				delta -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
			}

			// For "content" or "padding", subtract border
			if ( box !== "margin" ) {
				delta -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
			}
		}
	}

	// Account for positive content-box scroll gutter when requested by providing computedVal
	if ( !isBorderBox && computedVal >= 0 ) {

		// offsetWidth/offsetHeight is a rounded sum of content, padding, scroll gutter, and border
		// Assuming integer scroll gutter, subtract the rest and round down
		delta += Math.max( 0, Math.ceil(
			elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
			computedVal -
			delta -
			extra -
			0.5

		// If offsetWidth/offsetHeight is unknown, then we can't determine content-box scroll gutter
		// Use an explicit zero to avoid NaN (gh-3964)
		) ) || 0;
	}

	return delta;
}

function getWidthOrHeight( elem, dimension, extra ) {

	// Start with computed style
	var styles = getStyles( elem ),

		// To avoid forcing a reflow, only fetch boxSizing if we need it (gh-4322).
		// Fake content-box until we know it's needed to know the true value.
		boxSizingNeeded = !support.boxSizingReliable() || extra,
		isBorderBox = boxSizingNeeded &&
			jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
		valueIsBorderBox = isBorderBox,

		val = curCSS( elem, dimension, styles ),
		offsetProp = "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 );

	// Support: Firefox <=54
	// Return a confounding non-pixel value or feign ignorance, as appropriate.
	if ( rnumnonpx.test( val ) ) {
		if ( !extra ) {
			return val;
		}
		val = "auto";
	}


	// Support: IE 9 - 11 only
	// Use offsetWidth/offsetHeight for when box sizing is unreliable.
	// In those cases, the computed value can be trusted to be border-box.
	if ( ( !support.boxSizingReliable() && isBorderBox ||

		// Support: IE 10 - 11+, Edge 15 - 18+
		// IE/Edge misreport `getComputedStyle` of table rows with width/height
		// set in CSS while `offset*` properties report correct values.
		// Interestingly, in some cases IE 9 doesn't suffer from this issue.
		!support.reliableTrDimensions() && nodeName( elem, "tr" ) ||

		// Fall back to offsetWidth/offsetHeight when value is "auto"
		// This happens for inline elements with no explicit setting (gh-3571)
		val === "auto" ||

		// Support: Android <=4.1 - 4.3 only
		// Also use offsetWidth/offsetHeight for misreported inline dimensions (gh-3602)
		!parseFloat( val ) && jQuery.css( elem, "display", false, styles ) === "inline" ) &&

		// Make sure the element is visible & connected
		elem.getClientRects().length ) {

		isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";

		// Where available, offsetWidth/offsetHeight approximate border box dimensions.
		// Where not available (e.g., SVG), assume unreliable box-sizing and interpret the
		// retrieved value as a content box dimension.
		valueIsBorderBox = offsetProp in elem;
		if ( valueIsBorderBox ) {
			val = elem[ offsetProp ];
		}
	}

	// Normalize "" and auto
	val = parseFloat( val ) || 0;

	// Adjust for the element's box model
	return ( val +
		boxModelAdjustment(
			elem,
			dimension,
			extra || ( isBorderBox ? "border" : "content" ),
			valueIsBorderBox,
			styles,

			// Provide the current computed size to request scroll gutter calculation (gh-3589)
			val
		)
	) + "px";
}

jQuery.extend( {

	// Add in style property hooks for overriding the default
	// behavior of getting and setting a style property
	cssHooks: {
		opacity: {
			get: function( elem, computed ) {
				if ( computed ) {

					// We should always get a number back from opacity
					var ret = curCSS( elem, "opacity" );
					return ret === "" ? "1" : ret;
				}
			}
		}
	},

	// Don't automatically add "px" to these possibly-unitless properties
	cssNumber: {
		"animationIterationCount": true,
		"columnCount": true,
		"fillOpacity": true,
		"flexGrow": true,
		"flexShrink": true,
		"fontWeight": true,
		"gridArea": true,
		"gridColumn": true,
		"gridColumnEnd": true,
		"gridColumnStart": true,
		"gridRow": true,
		"gridRowEnd": true,
		"gridRowStart": true,
		"lineHeight": true,
		"opacity": true,
		"order": true,
		"orphans": true,
		"widows": true,
		"zIndex": true,
		"zoom": true
	},

	// Add in properties whose names you wish to fix before
	// setting or getting the value
	cssProps: {},

	// Get and set the style property on a DOM Node
	style: function( elem, name, value, extra ) {

		// Don't set styles on text and comment nodes
		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
			return;
		}

		// Make sure that we're working with the right name
		var ret, type, hooks,
			origName = camelCase( name ),
			isCustomProp = rcustomProp.test( name ),
			style = elem.style;

		// Make sure that we're working with the right name. We don't
		// want to query the value if it is a CSS custom property
		// since they are user-defined.
		if ( !isCustomProp ) {
			name = finalPropName( origName );
		}

		// Gets hook for the prefixed version, then unprefixed version
		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

		// Check if we're setting a value
		if ( value !== undefined ) {
			type = typeof value;

			// Convert "+=" or "-=" to relative numbers (#7345)
			if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
				value = adjustCSS( elem, name, ret );

				// Fixes bug #9237
				type = "number";
			}

			// Make sure that null and NaN values aren't set (#7116)
			if ( value == null || value !== value ) {
				return;
			}

			// If a number was passed in, add the unit (except for certain CSS properties)
			// The isCustomProp check can be removed in jQuery 4.0 when we only auto-append
			// "px" to a few hardcoded values.
			if ( type === "number" && !isCustomProp ) {
				value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
			}

			// background-* props affect original clone's values
			if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
				style[ name ] = "inherit";
			}

			// If a hook was provided, use that value, otherwise just set the specified value
			if ( !hooks || !( "set" in hooks ) ||
				( value = hooks.set( elem, value, extra ) ) !== undefined ) {

				if ( isCustomProp ) {
					style.setProperty( name, value );
				} else {
					style[ name ] = value;
				}
			}

		} else {

			// If a hook was provided get the non-computed value from there
			if ( hooks && "get" in hooks &&
				( ret = hooks.get( elem, false, extra ) ) !== undefined ) {

				return ret;
			}

			// Otherwise just get the value from the style object
			return style[ name ];
		}
	},

	css: function( elem, name, extra, styles ) {
		var val, num, hooks,
			origName = camelCase( name ),
			isCustomProp = rcustomProp.test( name );

		// Make sure that we're working with the right name. We don't
		// want to modify the value if it is a CSS custom property
		// since they are user-defined.
		if ( !isCustomProp ) {
			name = finalPropName( origName );
		}

		// Try prefixed name followed by the unprefixed name
		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

		// If a hook was provided get the computed value from there
		if ( hooks && "get" in hooks ) {
			val = hooks.get( elem, true, extra );
		}

		// Otherwise, if a way to get the computed value exists, use that
		if ( val === undefined ) {
			val = curCSS( elem, name, styles );
		}

		// Convert "normal" to computed value
		if ( val === "normal" && name in cssNormalTransform ) {
			val = cssNormalTransform[ name ];
		}

		// Make numeric if forced or a qualifier was provided and val looks numeric
		if ( extra === "" || extra ) {
			num = parseFloat( val );
			return extra === true || isFinite( num ) ? num || 0 : val;
		}

		return val;
	}
} );

jQuery.each( [ "height", "width" ], function( _i, dimension ) {
	jQuery.cssHooks[ dimension ] = {
		get: function( elem, computed, extra ) {
			if ( computed ) {

				// Certain elements can have dimension info if we invisibly show them
				// but it must have a current display style that would benefit
				return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&

					// Support: Safari 8+
					// Table columns in Safari have non-zero offsetWidth & zero
					// getBoundingClientRect().width unless display is changed.
					// Support: IE <=11 only
					// Running getBoundingClientRect on a disconnected node
					// in IE throws an error.
					( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
					swap( elem, cssShow, function() {
						return getWidthOrHeight( elem, dimension, extra );
					} ) :
					getWidthOrHeight( elem, dimension, extra );
			}
		},

		set: function( elem, value, extra ) {
			var matches,
				styles = getStyles( elem ),

				// Only read styles.position if the test has a chance to fail
				// to avoid forcing a reflow.
				scrollboxSizeBuggy = !support.scrollboxSize() &&
					styles.position === "absolute",

				// To avoid forcing a reflow, only fetch boxSizing if we need it (gh-3991)
				boxSizingNeeded = scrollboxSizeBuggy || extra,
				isBorderBox = boxSizingNeeded &&
					jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
				subtract = extra ?
					boxModelAdjustment(
						elem,
						dimension,
						extra,
						isBorderBox,
						styles
					) :
					0;

			// Account for unreliable border-box dimensions by comparing offset* to computed and
			// faking a content-box to get border and padding (gh-3699)
			if ( isBorderBox && scrollboxSizeBuggy ) {
				subtract -= Math.ceil(
					elem[ "offset" + dimension[ 0 ].toUpperCase() + dimension.slice( 1 ) ] -
					parseFloat( styles[ dimension ] ) -
					boxModelAdjustment( elem, dimension, "border", false, styles ) -
					0.5
				);
			}

			// Convert to pixels if value adjustment is needed
			if ( subtract && ( matches = rcssNum.exec( value ) ) &&
				( matches[ 3 ] || "px" ) !== "px" ) {

				elem.style[ dimension ] = value;
				value = jQuery.css( elem, dimension );
			}

			return setPositiveNumber( elem, value, subtract );
		}
	};
} );

jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
	function( elem, computed ) {
		if ( computed ) {
			return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
				elem.getBoundingClientRect().left -
					swap( elem, { marginLeft: 0 }, function() {
						return elem.getBoundingClientRect().left;
					} )
			) + "px";
		}
	}
);

// These hooks are used by animate to expand properties
jQuery.each( {
	margin: "",
	padding: "",
	border: "Width"
}, function( prefix, suffix ) {
	jQuery.cssHooks[ prefix + suffix ] = {
		expand: function( value ) {
			var i = 0,
				expanded = {},

				// Assumes a single number if not a string
				parts = typeof value === "string" ? value.split( " " ) : [ value ];

			for ( ; i < 4; i++ ) {
				expanded[ prefix + cssExpand[ i ] + suffix ] =
					parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
			}

			return expanded;
		}
	};

	if ( prefix !== "margin" ) {
		jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
	}
} );

jQuery.fn.extend( {
	css: function( name, value ) {
		return access( this, function( elem, name, value ) {
			var styles, len,
				map = {},
				i = 0;

			if ( Array.isArray( name ) ) {
				styles = getStyles( elem );
				len = name.length;

				for ( ; i < len; i++ ) {
					map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
				}

				return map;
			}

			return value !== undefined ?
				jQuery.style( elem, name, value ) :
				jQuery.css( elem, name );
		}, name, value, arguments.length > 1 );
	}
} );


function Tween( elem, options, prop, end, easing ) {
	return new Tween.prototype.init( elem, options, prop, end, easing );
}
jQuery.Tween = Tween;

Tween.prototype = {
	constructor: Tween,
	init: function( elem, options, prop, end, easing, unit ) {
		this.elem = elem;
		this.prop = prop;
		this.easing = easing || jQuery.easing._default;
		this.options = options;
		this.start = this.now = this.cur();
		this.end = end;
		this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
	},
	cur: function() {
		var hooks = Tween.propHooks[ this.prop ];

		return hooks && hooks.get ?
			hooks.get( this ) :
			Tween.propHooks._default.get( this );
	},
	run: function( percent ) {
		var eased,
			hooks = Tween.propHooks[ this.prop ];

		if ( this.options.duration ) {
			this.pos = eased = jQuery.easing[ this.easing ](
				percent, this.options.duration * percent, 0, 1, this.options.duration
			);
		} else {
			this.pos = eased = percent;
		}
		this.now = ( this.end - this.start ) * eased + this.start;

		if ( this.options.step ) {
			this.options.step.call( this.elem, this.now, this );
		}

		if ( hooks && hooks.set ) {
			hooks.set( this );
		} else {
			Tween.propHooks._default.set( this );
		}
		return this;
	}
};

Tween.prototype.init.prototype = Tween.prototype;

Tween.propHooks = {
	_default: {
		get: function( tween ) {
			var result;

			// Use a property on the element directly when it is not a DOM element,
			// or when there is no matching style property that exists.
			if ( tween.elem.nodeType !== 1 ||
				tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
				return tween.elem[ tween.prop ];
			}

			// Passing an empty string as a 3rd parameter to .css will automatically
			// attempt a parseFloat and fallback to a string if the parse fails.
			// Simple values such as "10px" are parsed to Float;
			// complex values such as "rotate(1rad)" are returned as-is.
			result = jQuery.css( tween.elem, tween.prop, "" );

			// Empty strings, null, undefined and "auto" are converted to 0.
			return !result || result === "auto" ? 0 : result;
		},
		set: function( tween ) {

			// Use step hook for back compat.
			// Use cssHook if its there.
			// Use .style if available and use plain properties where available.
			if ( jQuery.fx.step[ tween.prop ] ) {
				jQuery.fx.step[ tween.prop ]( tween );
			} else if ( tween.elem.nodeType === 1 && (
				jQuery.cssHooks[ tween.prop ] ||
					tween.elem.style[ finalPropName( tween.prop ) ] != null ) ) {
				jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
			} else {
				tween.elem[ tween.prop ] = tween.now;
			}
		}
	}
};

// Support: IE <=9 only
// Panic based approach to setting things on disconnected nodes
Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
	set: function( tween ) {
		if ( tween.elem.nodeType && tween.elem.parentNode ) {
			tween.elem[ tween.prop ] = tween.now;
		}
	}
};

jQuery.easing = {
	linear: function( p ) {
		return p;
	},
	swing: function( p ) {
		return 0.5 - Math.cos( p * Math.PI ) / 2;
	},
	_default: "swing"
};

jQuery.fx = Tween.prototype.init;

// Back compat <1.8 extension point
jQuery.fx.step = {};




var
	fxNow, inProgress,
	rfxtypes = /^(?:toggle|show|hide)$/,
	rrun = /queueHooks$/;

function schedule() {
	if ( inProgress ) {
		if ( document.hidden === false && window.requestAnimationFrame ) {
			window.requestAnimationFrame( schedule );
		} else {
			window.setTimeout( schedule, jQuery.fx.interval );
		}

		jQuery.fx.tick();
	}
}

// Animations created synchronously will run synchronously
function createFxNow() {
	window.setTimeout( function() {
		fxNow = undefined;
	} );
	return ( fxNow = Date.now() );
}

// Generate parameters to create a standard animation
function genFx( type, includeWidth ) {
	var which,
		i = 0,
		attrs = { height: type };

	// If we include width, step value is 1 to do all cssExpand values,
	// otherwise step value is 2 to skip over Left and Right
	includeWidth = includeWidth ? 1 : 0;
	for ( ; i < 4; i += 2 - includeWidth ) {
		which = cssExpand[ i ];
		attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
	}

	if ( includeWidth ) {
		attrs.opacity = attrs.width = type;
	}

	return attrs;
}

function createTween( value, prop, animation ) {
	var tween,
		collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
		index = 0,
		length = collection.length;
	for ( ; index < length; index++ ) {
		if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {

			// We're done with this property
			return tween;
		}
	}
}

function defaultPrefilter( elem, props, opts ) {
	var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
		isBox = "width" in props || "height" in props,
		anim = this,
		orig = {},
		style = elem.style,
		hidden = elem.nodeType && isHiddenWithinTree( elem ),
		dataShow = dataPriv.get( elem, "fxshow" );

	// Queue-skipping animations hijack the fx hooks
	if ( !opts.queue ) {
		hooks = jQuery._queueHooks( elem, "fx" );
		if ( hooks.unqueued == null ) {
			hooks.unqueued = 0;
			oldfire = hooks.empty.fire;
			hooks.empty.fire = function() {
				if ( !hooks.unqueued ) {
					oldfire();
				}
			};
		}
		hooks.unqueued++;

		anim.always( function() {

			// Ensure the complete handler is called before this completes
			anim.always( function() {
				hooks.unqueued--;
				if ( !jQuery.queue( elem, "fx" ).length ) {
					hooks.empty.fire();
				}
			} );
		} );
	}

	// Detect show/hide animations
	for ( prop in props ) {
		value = props[ prop ];
		if ( rfxtypes.test( value ) ) {
			delete props[ prop ];
			toggle = toggle || value === "toggle";
			if ( value === ( hidden ? "hide" : "show" ) ) {

				// Pretend to be hidden if this is a "show" and
				// there is still data from a stopped show/hide
				if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
					hidden = true;

				// Ignore all other no-op show/hide data
				} else {
					continue;
				}
			}
			orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
		}
	}

	// Bail out if this is a no-op like .hide().hide()
	propTween = !jQuery.isEmptyObject( props );
	if ( !propTween && jQuery.isEmptyObject( orig ) ) {
		return;
	}

	// Restrict "overflow" and "display" styles during box animations
	if ( isBox && elem.nodeType === 1 ) {

		// Support: IE <=9 - 11, Edge 12 - 15
		// Record all 3 overflow attributes because IE does not infer the shorthand
		// from identically-valued overflowX and overflowY and Edge just mirrors
		// the overflowX value there.
		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];

		// Identify a display type, preferring old show/hide data over the CSS cascade
		restoreDisplay = dataShow && dataShow.display;
		if ( restoreDisplay == null ) {
			restoreDisplay = dataPriv.get( elem, "display" );
		}
		display = jQuery.css( elem, "display" );
		if ( display === "none" ) {
			if ( restoreDisplay ) {
				display = restoreDisplay;
			} else {

				// Get nonempty value(s) by temporarily forcing visibility
				showHide( [ elem ], true );
				restoreDisplay = elem.style.display || restoreDisplay;
				display = jQuery.css( elem, "display" );
				showHide( [ elem ] );
			}
		}

		// Animate inline elements as inline-block
		if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
			if ( jQuery.css( elem, "float" ) === "none" ) {

				// Restore the original display value at the end of pure show/hide animations
				if ( !propTween ) {
					anim.done( function() {
						style.display = restoreDisplay;
					} );
					if ( restoreDisplay == null ) {
						display = style.display;
						restoreDisplay = display === "none" ? "" : display;
					}
				}
				style.display = "inline-block";
			}
		}
	}

	if ( opts.overflow ) {
		style.overflow = "hidden";
		anim.always( function() {
			style.overflow = opts.overflow[ 0 ];
			style.overflowX = opts.overflow[ 1 ];
			style.overflowY = opts.overflow[ 2 ];
		} );
	}

	// Implement show/hide animations
	propTween = false;
	for ( prop in orig ) {

		// General show/hide setup for this element animation
		if ( !propTween ) {
			if ( dataShow ) {
				if ( "hidden" in dataShow ) {
					hidden = dataShow.hidden;
				}
			} else {
				dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
			}

			// Store hidden/visible for toggle so `.stop().toggle()` "reverses"
			if ( toggle ) {
				dataShow.hidden = !hidden;
			}

			// Show elements before animating them
			if ( hidden ) {
				showHide( [ elem ], true );
			}

			/* eslint-disable no-loop-func */

			anim.done( function() {

				/* eslint-enable no-loop-func */

				// The final step of a "hide" animation is actually hiding the element
				if ( !hidden ) {
					showHide( [ elem ] );
				}
				dataPriv.remove( elem, "fxshow" );
				for ( prop in orig ) {
					jQuery.style( elem, prop, orig[ prop ] );
				}
			} );
		}

		// Per-property setup
		propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
		if ( !( prop in dataShow ) ) {
			dataShow[ prop ] = propTween.start;
			if ( hidden ) {
				propTween.end = propTween.start;
				propTween.start = 0;
			}
		}
	}
}

function propFilter( props, specialEasing ) {
	var index, name, easing, value, hooks;

	// camelCase, specialEasing and expand cssHook pass
	for ( index in props ) {
		name = camelCase( index );
		easing = specialEasing[ name ];
		value = props[ index ];
		if ( Array.isArray( value ) ) {
			easing = value[ 1 ];
			value = props[ index ] = value[ 0 ];
		}

		if ( index !== name ) {
			props[ name ] = value;
			delete props[ index ];
		}

		hooks = jQuery.cssHooks[ name ];
		if ( hooks && "expand" in hooks ) {
			value = hooks.expand( value );
			delete props[ name ];

			// Not quite $.extend, this won't overwrite existing keys.
			// Reusing 'index' because we have the correct "name"
			for ( index in value ) {
				if ( !( index in props ) ) {
					props[ index ] = value[ index ];
					specialEasing[ index ] = easing;
				}
			}
		} else {
			specialEasing[ name ] = easing;
		}
	}
}

function Animation( elem, properties, options ) {
	var result,
		stopped,
		index = 0,
		length = Animation.prefilters.length,
		deferred = jQuery.Deferred().always( function() {

			// Don't match elem in the :animated selector
			delete tick.elem;
		} ),
		tick = function() {
			if ( stopped ) {
				return false;
			}
			var currentTime = fxNow || createFxNow(),
				remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),

				// Support: Android 2.3 only
				// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
				temp = remaining / animation.duration || 0,
				percent = 1 - temp,
				index = 0,
				length = animation.tweens.length;

			for ( ; index < length; index++ ) {
				animation.tweens[ index ].run( percent );
			}

			deferred.notifyWith( elem, [ animation, percent, remaining ] );

			// If there's more to do, yield
			if ( percent < 1 && length ) {
				return remaining;
			}

			// If this was an empty animation, synthesize a final progress notification
			if ( !length ) {
				deferred.notifyWith( elem, [ animation, 1, 0 ] );
			}

			// Resolve the animation and report its conclusion
			deferred.resolveWith( elem, [ animation ] );
			return false;
		},
		animation = deferred.promise( {
			elem: elem,
			props: jQuery.extend( {}, properties ),
			opts: jQuery.extend( true, {
				specialEasing: {},
				easing: jQuery.easing._default
			}, options ),
			originalProperties: properties,
			originalOptions: options,
			startTime: fxNow || createFxNow(),
			duration: options.duration,
			tweens: [],
			createTween: function( prop, end ) {
				var tween = jQuery.Tween( elem, animation.opts, prop, end,
					animation.opts.specialEasing[ prop ] || animation.opts.easing );
				animation.tweens.push( tween );
				return tween;
			},
			stop: function( gotoEnd ) {
				var index = 0,

					// If we are going to the end, we want to run all the tweens
					// otherwise we skip this part
					length = gotoEnd ? animation.tweens.length : 0;
				if ( stopped ) {
					return this;
				}
				stopped = true;
				for ( ; index < length; index++ ) {
					animation.tweens[ index ].run( 1 );
				}

				// Resolve when we played the last frame; otherwise, reject
				if ( gotoEnd ) {
					deferred.notifyWith( elem, [ animation, 1, 0 ] );
					deferred.resolveWith( elem, [ animation, gotoEnd ] );
				} else {
					deferred.rejectWith( elem, [ animation, gotoEnd ] );
				}
				return this;
			}
		} ),
		props = animation.props;

	propFilter( props, animation.opts.specialEasing );

	for ( ; index < length; index++ ) {
		result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
		if ( result ) {
			if ( isFunction( result.stop ) ) {
				jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
					result.stop.bind( result );
			}
			return result;
		}
	}

	jQuery.map( props, createTween, animation );

	if ( isFunction( animation.opts.start ) ) {
		animation.opts.start.call( elem, animation );
	}

	// Attach callbacks from options
	animation
		.progress( animation.opts.progress )
		.done( animation.opts.done, animation.opts.complete )
		.fail( animation.opts.fail )
		.always( animation.opts.always );

	jQuery.fx.timer(
		jQuery.extend( tick, {
			elem: elem,
			anim: animation,
			queue: animation.opts.queue
		} )
	);

	return animation;
}

jQuery.Animation = jQuery.extend( Animation, {

	tweeners: {
		"*": [ function( prop, value ) {
			var tween = this.createTween( prop, value );
			adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
			return tween;
		} ]
	},

	tweener: function( props, callback ) {
		if ( isFunction( props ) ) {
			callback = props;
			props = [ "*" ];
		} else {
			props = props.match( rnothtmlwhite );
		}

		var prop,
			index = 0,
			length = props.length;

		for ( ; index < length; index++ ) {
			prop = props[ index ];
			Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
			Animation.tweeners[ prop ].unshift( callback );
		}
	},

	prefilters: [ defaultPrefilter ],

	prefilter: function( callback, prepend ) {
		if ( prepend ) {
			Animation.prefilters.unshift( callback );
		} else {
			Animation.prefilters.push( callback );
		}
	}
} );

jQuery.speed = function( speed, easing, fn ) {
	var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
		complete: fn || !fn && easing ||
			isFunction( speed ) && speed,
		duration: speed,
		easing: fn && easing || easing && !isFunction( easing ) && easing
	};

	// Go to the end state if fx are off
	if ( jQuery.fx.off ) {
		opt.duration = 0;

	} else {
		if ( typeof opt.duration !== "number" ) {
			if ( opt.duration in jQuery.fx.speeds ) {
				opt.duration = jQuery.fx.speeds[ opt.duration ];

			} else {
				opt.duration = jQuery.fx.speeds._default;
			}
		}
	}

	// Normalize opt.queue - true/undefined/null -> "fx"
	if ( opt.queue == null || opt.queue === true ) {
		opt.queue = "fx";
	}

	// Queueing
	opt.old = opt.complete;

	opt.complete = function() {
		if ( isFunction( opt.old ) ) {
			opt.old.call( this );
		}

		if ( opt.queue ) {
			jQuery.dequeue( this, opt.queue );
		}
	};

	return opt;
};

jQuery.fn.extend( {
	fadeTo: function( speed, to, easing, callback ) {

		// Show any hidden elements after setting opacity to 0
		return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()

			// Animate to the value specified
			.end().animate( { opacity: to }, speed, easing, callback );
	},
	animate: function( prop, speed, easing, callback ) {
		var empty = jQuery.isEmptyObject( prop ),
			optall = jQuery.speed( speed, easing, callback ),
			doAnimation = function() {

				// Operate on a copy of prop so per-property easing won't be lost
				var anim = Animation( this, jQuery.extend( {}, prop ), optall );

				// Empty animations, or finishing resolves immediately
				if ( empty || dataPriv.get( this, "finish" ) ) {
					anim.stop( true );
				}
			};

		doAnimation.finish = doAnimation;

		return empty || optall.queue === false ?
			this.each( doAnimation ) :
			this.queue( optall.queue, doAnimation );
	},
	stop: function( type, clearQueue, gotoEnd ) {
		var stopQueue = function( hooks ) {
			var stop = hooks.stop;
			delete hooks.stop;
			stop( gotoEnd );
		};

		if ( typeof type !== "string" ) {
			gotoEnd = clearQueue;
			clearQueue = type;
			type = undefined;
		}
		if ( clearQueue ) {
			this.queue( type || "fx", [] );
		}

		return this.each( function() {
			var dequeue = true,
				index = type != null && type + "queueHooks",
				timers = jQuery.timers,
				data = dataPriv.get( this );

			if ( index ) {
				if ( data[ index ] && data[ index ].stop ) {
					stopQueue( data[ index ] );
				}
			} else {
				for ( index in data ) {
					if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
						stopQueue( data[ index ] );
					}
				}
			}

			for ( index = timers.length; index--; ) {
				if ( timers[ index ].elem === this &&
					( type == null || timers[ index ].queue === type ) ) {

					timers[ index ].anim.stop( gotoEnd );
					dequeue = false;
					timers.splice( index, 1 );
				}
			}

			// Start the next in the queue if the last step wasn't forced.
			// Timers currently will call their complete callbacks, which
			// will dequeue but only if they were gotoEnd.
			if ( dequeue || !gotoEnd ) {
				jQuery.dequeue( this, type );
			}
		} );
	},
	finish: function( type ) {
		if ( type !== false ) {
			type = type || "fx";
		}
		return this.each( function() {
			var index,
				data = dataPriv.get( this ),
				queue = data[ type + "queue" ],
				hooks = data[ type + "queueHooks" ],
				timers = jQuery.timers,
				length = queue ? queue.length : 0;

			// Enable finishing flag on private data
			data.finish = true;

			// Empty the queue first
			jQuery.queue( this, type, [] );

			if ( hooks && hooks.stop ) {
				hooks.stop.call( this, true );
			}

			// Look for any active animations, and finish them
			for ( index = timers.length; index--; ) {
				if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
					timers[ index ].anim.stop( true );
					timers.splice( index, 1 );
				}
			}

			// Look for any animations in the old queue and finish them
			for ( index = 0; index < length; index++ ) {
				if ( queue[ index ] && queue[ index ].finish ) {
					queue[ index ].finish.call( this );
				}
			}

			// Turn off finishing flag
			delete data.finish;
		} );
	}
} );

jQuery.each( [ "toggle", "show", "hide" ], function( _i, name ) {
	var cssFn = jQuery.fn[ name ];
	jQuery.fn[ name ] = function( speed, easing, callback ) {
		return speed == null || typeof speed === "boolean" ?
			cssFn.apply( this, arguments ) :
			this.animate( genFx( name, true ), speed, easing, callback );
	};
} );

// Generate shortcuts for custom animations
jQuery.each( {
	slideDown: genFx( "show" ),
	slideUp: genFx( "hide" ),
	slideToggle: genFx( "toggle" ),
	fadeIn: { opacity: "show" },
	fadeOut: { opacity: "hide" },
	fadeToggle: { opacity: "toggle" }
}, function( name, props ) {
	jQuery.fn[ name ] = function( speed, easing, callback ) {
		return this.animate( props, speed, easing, callback );
	};
} );

jQuery.timers = [];
jQuery.fx.tick = function() {
	var timer,
		i = 0,
		timers = jQuery.timers;

	fxNow = Date.now();

	for ( ; i < timers.length; i++ ) {
		timer = timers[ i ];

		// Run the timer and safely remove it when done (allowing for external removal)
		if ( !timer() && timers[ i ] === timer ) {
			timers.splice( i--, 1 );
		}
	}

	if ( !timers.length ) {
		jQuery.fx.stop();
	}
	fxNow = undefined;
};

jQuery.fx.timer = function( timer ) {
	jQuery.timers.push( timer );
	jQuery.fx.start();
};

jQuery.fx.interval = 13;
jQuery.fx.start = function() {
	if ( inProgress ) {
		return;
	}

	inProgress = true;
	schedule();
};

jQuery.fx.stop = function() {
	inProgress = null;
};

jQuery.fx.speeds = {
	slow: 600,
	fast: 200,

	// Default speed
	_default: 400
};


// Based off of the plugin by Clint Helfers, with permission.
// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
jQuery.fn.delay = function( time, type ) {
	time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
	type = type || "fx";

	return this.queue( type, function( next, hooks ) {
		var timeout = window.setTimeout( next, time );
		hooks.stop = function() {
			window.clearTimeout( timeout );
		};
	} );
};


( function() {
	var input = document.createElement( "input" ),
		select = document.createElement( "select" ),
		opt = select.appendChild( document.createElement( "option" ) );

	input.type = "checkbox";

	// Support: Android <=4.3 only
	// Default value for a checkbox should be "on"
	support.checkOn = input.value !== "";

	// Support: IE <=11 only
	// Must access selectedIndex to make default options select
	support.optSelected = opt.selected;

	// Support: IE <=11 only
	// An input loses its value after becoming a radio
	input = document.createElement( "input" );
	input.value = "t";
	input.type = "radio";
	support.radioValue = input.value === "t";
} )();


var boolHook,
	attrHandle = jQuery.expr.attrHandle;

jQuery.fn.extend( {
	attr: function( name, value ) {
		return access( this, jQuery.attr, name, value, arguments.length > 1 );
	},

	removeAttr: function( name ) {
		return this.each( function() {
			jQuery.removeAttr( this, name );
		} );
	}
} );

jQuery.extend( {
	attr: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set attributes on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		// Fallback to prop when attributes are not supported
		if ( typeof elem.getAttribute === "undefined" ) {
			return jQuery.prop( elem, name, value );
		}

		// Attribute hooks are determined by the lowercase version
		// Grab necessary hook if one is defined
		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
			hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
				( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
		}

		if ( value !== undefined ) {
			if ( value === null ) {
				jQuery.removeAttr( elem, name );
				return;
			}

			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			elem.setAttribute( name, value + "" );
			return value;
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		ret = jQuery.find.attr( elem, name );

		// Non-existent attributes return null, we normalize to undefined
		return ret == null ? undefined : ret;
	},

	attrHooks: {
		type: {
			set: function( elem, value ) {
				if ( !support.radioValue && value === "radio" &&
					nodeName( elem, "input" ) ) {
					var val = elem.value;
					elem.setAttribute( "type", value );
					if ( val ) {
						elem.value = val;
					}
					return value;
				}
			}
		}
	},

	removeAttr: function( elem, value ) {
		var name,
			i = 0,

			// Attribute names can contain non-HTML whitespace characters
			// https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
			attrNames = value && value.match( rnothtmlwhite );

		if ( attrNames && elem.nodeType === 1 ) {
			while ( ( name = attrNames[ i++ ] ) ) {
				elem.removeAttribute( name );
			}
		}
	}
} );

// Hooks for boolean attributes
boolHook = {
	set: function( elem, value, name ) {
		if ( value === false ) {

			// Remove boolean attributes when set to false
			jQuery.removeAttr( elem, name );
		} else {
			elem.setAttribute( name, name );
		}
		return name;
	}
};

jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( _i, name ) {
	var getter = attrHandle[ name ] || jQuery.find.attr;

	attrHandle[ name ] = function( elem, name, isXML ) {
		var ret, handle,
			lowercaseName = name.toLowerCase();

		if ( !isXML ) {

			// Avoid an infinite loop by temporarily removing this function from the getter
			handle = attrHandle[ lowercaseName ];
			attrHandle[ lowercaseName ] = ret;
			ret = getter( elem, name, isXML ) != null ?
				lowercaseName :
				null;
			attrHandle[ lowercaseName ] = handle;
		}
		return ret;
	};
} );




var rfocusable = /^(?:input|select|textarea|button)$/i,
	rclickable = /^(?:a|area)$/i;

jQuery.fn.extend( {
	prop: function( name, value ) {
		return access( this, jQuery.prop, name, value, arguments.length > 1 );
	},

	removeProp: function( name ) {
		return this.each( function() {
			delete this[ jQuery.propFix[ name ] || name ];
		} );
	}
} );

jQuery.extend( {
	prop: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set properties on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {

			// Fix name and attach hooks
			name = jQuery.propFix[ name ] || name;
			hooks = jQuery.propHooks[ name ];
		}

		if ( value !== undefined ) {
			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			return ( elem[ name ] = value );
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		return elem[ name ];
	},

	propHooks: {
		tabIndex: {
			get: function( elem ) {

				// Support: IE <=9 - 11 only
				// elem.tabIndex doesn't always return the
				// correct value when it hasn't been explicitly set
				// https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
				// Use proper attribute retrieval(#12072)
				var tabindex = jQuery.find.attr( elem, "tabindex" );

				if ( tabindex ) {
					return parseInt( tabindex, 10 );
				}

				if (
					rfocusable.test( elem.nodeName ) ||
					rclickable.test( elem.nodeName ) &&
					elem.href
				) {
					return 0;
				}

				return -1;
			}
		}
	},

	propFix: {
		"for": "htmlFor",
		"class": "className"
	}
} );

// Support: IE <=11 only
// Accessing the selectedIndex property
// forces the browser to respect setting selected
// on the option
// The getter ensures a default option is selected
// when in an optgroup
// eslint rule "no-unused-expressions" is disabled for this code
// since it considers such accessions noop
if ( !support.optSelected ) {
	jQuery.propHooks.selected = {
		get: function( elem ) {

			/* eslint no-unused-expressions: "off" */

			var parent = elem.parentNode;
			if ( parent && parent.parentNode ) {
				parent.parentNode.selectedIndex;
			}
			return null;
		},
		set: function( elem ) {

			/* eslint no-unused-expressions: "off" */

			var parent = elem.parentNode;
			if ( parent ) {
				parent.selectedIndex;

				if ( parent.parentNode ) {
					parent.parentNode.selectedIndex;
				}
			}
		}
	};
}

jQuery.each( [
	"tabIndex",
	"readOnly",
	"maxLength",
	"cellSpacing",
	"cellPadding",
	"rowSpan",
	"colSpan",
	"useMap",
	"frameBorder",
	"contentEditable"
], function() {
	jQuery.propFix[ this.toLowerCase() ] = this;
} );




	// Strip and collapse whitespace according to HTML spec
	// https://infra.spec.whatwg.org/#strip-and-collapse-ascii-whitespace
	function stripAndCollapse( value ) {
		var tokens = value.match( rnothtmlwhite ) || [];
		return tokens.join( " " );
	}


function getClass( elem ) {
	return elem.getAttribute && elem.getAttribute( "class" ) || "";
}

function classesToArray( value ) {
	if ( Array.isArray( value ) ) {
		return value;
	}
	if ( typeof value === "string" ) {
		return value.match( rnothtmlwhite ) || [];
	}
	return [];
}

jQuery.fn.extend( {
	addClass: function( value ) {
		var classes, elem, cur, curValue, clazz, j, finalValue,
			i = 0;

		if ( isFunction( value ) ) {
			return this.each( function( j ) {
				jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
			} );
		}

		classes = classesToArray( value );

		if ( classes.length ) {
			while ( ( elem = this[ i++ ] ) ) {
				curValue = getClass( elem );
				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );

				if ( cur ) {
					j = 0;
					while ( ( clazz = classes[ j++ ] ) ) {
						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
							cur += clazz + " ";
						}
					}

					// Only assign if different to avoid unneeded rendering.
					finalValue = stripAndCollapse( cur );
					if ( curValue !== finalValue ) {
						elem.setAttribute( "class", finalValue );
					}
				}
			}
		}

		return this;
	},

	removeClass: function( value ) {
		var classes, elem, cur, curValue, clazz, j, finalValue,
			i = 0;

		if ( isFunction( value ) ) {
			return this.each( function( j ) {
				jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
			} );
		}

		if ( !arguments.length ) {
			return this.attr( "class", "" );
		}

		classes = classesToArray( value );

		if ( classes.length ) {
			while ( ( elem = this[ i++ ] ) ) {
				curValue = getClass( elem );

				// This expression is here for better compressibility (see addClass)
				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );

				if ( cur ) {
					j = 0;
					while ( ( clazz = classes[ j++ ] ) ) {

						// Remove *all* instances
						while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
							cur = cur.replace( " " + clazz + " ", " " );
						}
					}

					// Only assign if different to avoid unneeded rendering.
					finalValue = stripAndCollapse( cur );
					if ( curValue !== finalValue ) {
						elem.setAttribute( "class", finalValue );
					}
				}
			}
		}

		return this;
	},

	toggleClass: function( value, stateVal ) {
		var type = typeof value,
			isValidValue = type === "string" || Array.isArray( value );

		if ( typeof stateVal === "boolean" && isValidValue ) {
			return stateVal ? this.addClass( value ) : this.removeClass( value );
		}

		if ( isFunction( value ) ) {
			return this.each( function( i ) {
				jQuery( this ).toggleClass(
					value.call( this, i, getClass( this ), stateVal ),
					stateVal
				);
			} );
		}

		return this.each( function() {
			var className, i, self, classNames;

			if ( isValidValue ) {

				// Toggle individual class names
				i = 0;
				self = jQuery( this );
				classNames = classesToArray( value );

				while ( ( className = classNames[ i++ ] ) ) {

					// Check each className given, space separated list
					if ( self.hasClass( className ) ) {
						self.removeClass( className );
					} else {
						self.addClass( className );
					}
				}

			// Toggle whole class name
			} else if ( value === undefined || type === "boolean" ) {
				className = getClass( this );
				if ( className ) {

					// Store className if set
					dataPriv.set( this, "__className__", className );
				}

				// If the element has a class name or if we're passed `false`,
				// then remove the whole classname (if there was one, the above saved it).
				// Otherwise bring back whatever was previously saved (if anything),
				// falling back to the empty string if nothing was stored.
				if ( this.setAttribute ) {
					this.setAttribute( "class",
						className || value === false ?
							"" :
							dataPriv.get( this, "__className__" ) || ""
					);
				}
			}
		} );
	},

	hasClass: function( selector ) {
		var className, elem,
			i = 0;

		className = " " + selector + " ";
		while ( ( elem = this[ i++ ] ) ) {
			if ( elem.nodeType === 1 &&
				( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
				return true;
			}
		}

		return false;
	}
} );




var rreturn = /\r/g;

jQuery.fn.extend( {
	val: function( value ) {
		var hooks, ret, valueIsFunction,
			elem = this[ 0 ];

		if ( !arguments.length ) {
			if ( elem ) {
				hooks = jQuery.valHooks[ elem.type ] ||
					jQuery.valHooks[ elem.nodeName.toLowerCase() ];

				if ( hooks &&
					"get" in hooks &&
					( ret = hooks.get( elem, "value" ) ) !== undefined
				) {
					return ret;
				}

				ret = elem.value;

				// Handle most common string cases
				if ( typeof ret === "string" ) {
					return ret.replace( rreturn, "" );
				}

				// Handle cases where value is null/undef or number
				return ret == null ? "" : ret;
			}

			return;
		}

		valueIsFunction = isFunction( value );

		return this.each( function( i ) {
			var val;

			if ( this.nodeType !== 1 ) {
				return;
			}

			if ( valueIsFunction ) {
				val = value.call( this, i, jQuery( this ).val() );
			} else {
				val = value;
			}

			// Treat null/undefined as ""; convert numbers to string
			if ( val == null ) {
				val = "";

			} else if ( typeof val === "number" ) {
				val += "";

			} else if ( Array.isArray( val ) ) {
				val = jQuery.map( val, function( value ) {
					return value == null ? "" : value + "";
				} );
			}

			hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];

			// If set returns undefined, fall back to normal setting
			if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
				this.value = val;
			}
		} );
	}
} );

jQuery.extend( {
	valHooks: {
		option: {
			get: function( elem ) {

				var val = jQuery.find.attr( elem, "value" );
				return val != null ?
					val :

					// Support: IE <=10 - 11 only
					// option.text throws exceptions (#14686, #14858)
					// Strip and collapse whitespace
					// https://html.spec.whatwg.org/#strip-and-collapse-whitespace
					stripAndCollapse( jQuery.text( elem ) );
			}
		},
		select: {
			get: function( elem ) {
				var value, option, i,
					options = elem.options,
					index = elem.selectedIndex,
					one = elem.type === "select-one",
					values = one ? null : [],
					max = one ? index + 1 : options.length;

				if ( index < 0 ) {
					i = max;

				} else {
					i = one ? index : 0;
				}

				// Loop through all the selected options
				for ( ; i < max; i++ ) {
					option = options[ i ];

					// Support: IE <=9 only
					// IE8-9 doesn't update selected after form reset (#2551)
					if ( ( option.selected || i === index ) &&

							// Don't return options that are disabled or in a disabled optgroup
							!option.disabled &&
							( !option.parentNode.disabled ||
								!nodeName( option.parentNode, "optgroup" ) ) ) {

						// Get the specific value for the option
						value = jQuery( option ).val();

						// We don't need an array for one selects
						if ( one ) {
							return value;
						}

						// Multi-Selects return an array
						values.push( value );
					}
				}

				return values;
			},

			set: function( elem, value ) {
				var optionSet, option,
					options = elem.options,
					values = jQuery.makeArray( value ),
					i = options.length;

				while ( i-- ) {
					option = options[ i ];

					/* eslint-disable no-cond-assign */

					if ( option.selected =
						jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
					) {
						optionSet = true;
					}

					/* eslint-enable no-cond-assign */
				}

				// Force browsers to behave consistently when non-matching value is set
				if ( !optionSet ) {
					elem.selectedIndex = -1;
				}
				return values;
			}
		}
	}
} );

// Radios and checkboxes getter/setter
jQuery.each( [ "radio", "checkbox" ], function() {
	jQuery.valHooks[ this ] = {
		set: function( elem, value ) {
			if ( Array.isArray( value ) ) {
				return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
			}
		}
	};
	if ( !support.checkOn ) {
		jQuery.valHooks[ this ].get = function( elem ) {
			return elem.getAttribute( "value" ) === null ? "on" : elem.value;
		};
	}
} );




// Return jQuery for attributes-only inclusion


support.focusin = "onfocusin" in window;


var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
	stopPropagationCallback = function( e ) {
		e.stopPropagation();
	};

jQuery.extend( jQuery.event, {

	trigger: function( event, data, elem, onlyHandlers ) {

		var i, cur, tmp, bubbleType, ontype, handle, special, lastElement,
			eventPath = [ elem || document ],
			type = hasOwn.call( event, "type" ) ? event.type : event,
			namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];

		cur = lastElement = tmp = elem = elem || document;

		// Don't do events on text and comment nodes
		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
			return;
		}

		// focus/blur morphs to focusin/out; ensure we're not firing them right now
		if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
			return;
		}

		if ( type.indexOf( "." ) > -1 ) {

			// Namespaced trigger; create a regexp to match event type in handle()
			namespaces = type.split( "." );
			type = namespaces.shift();
			namespaces.sort();
		}
		ontype = type.indexOf( ":" ) < 0 && "on" + type;

		// Caller can pass in a jQuery.Event object, Object, or just an event type string
		event = event[ jQuery.expando ] ?
			event :
			new jQuery.Event( type, typeof event === "object" && event );

		// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
		event.isTrigger = onlyHandlers ? 2 : 3;
		event.namespace = namespaces.join( "." );
		event.rnamespace = event.namespace ?
			new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
			null;

		// Clean up the event in case it is being reused
		event.result = undefined;
		if ( !event.target ) {
			event.target = elem;
		}

		// Clone any incoming data and prepend the event, creating the handler arg list
		data = data == null ?
			[ event ] :
			jQuery.makeArray( data, [ event ] );

		// Allow special events to draw outside the lines
		special = jQuery.event.special[ type ] || {};
		if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
			return;
		}

		// Determine event propagation path in advance, per W3C events spec (#9951)
		// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
		if ( !onlyHandlers && !special.noBubble && !isWindow( elem ) ) {

			bubbleType = special.delegateType || type;
			if ( !rfocusMorph.test( bubbleType + type ) ) {
				cur = cur.parentNode;
			}
			for ( ; cur; cur = cur.parentNode ) {
				eventPath.push( cur );
				tmp = cur;
			}

			// Only add window if we got to document (e.g., not plain obj or detached DOM)
			if ( tmp === ( elem.ownerDocument || document ) ) {
				eventPath.push( tmp.defaultView || tmp.parentWindow || window );
			}
		}

		// Fire handlers on the event path
		i = 0;
		while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {
			lastElement = cur;
			event.type = i > 1 ?
				bubbleType :
				special.bindType || type;

			// jQuery handler
			handle = ( dataPriv.get( cur, "events" ) || Object.create( null ) )[ event.type ] &&
				dataPriv.get( cur, "handle" );
			if ( handle ) {
				handle.apply( cur, data );
			}

			// Native handler
			handle = ontype && cur[ ontype ];
			if ( handle && handle.apply && acceptData( cur ) ) {
				event.result = handle.apply( cur, data );
				if ( event.result === false ) {
					event.preventDefault();
				}
			}
		}
		event.type = type;

		// If nobody prevented the default action, do it now
		if ( !onlyHandlers && !event.isDefaultPrevented() ) {

			if ( ( !special._default ||
				special._default.apply( eventPath.pop(), data ) === false ) &&
				acceptData( elem ) ) {

				// Call a native DOM method on the target with the same name as the event.
				// Don't do default actions on window, that's where global variables be (#6170)
				if ( ontype && isFunction( elem[ type ] ) && !isWindow( elem ) ) {

					// Don't re-trigger an onFOO event when we call its FOO() method
					tmp = elem[ ontype ];

					if ( tmp ) {
						elem[ ontype ] = null;
					}

					// Prevent re-triggering of the same event, since we already bubbled it above
					jQuery.event.triggered = type;

					if ( event.isPropagationStopped() ) {
						lastElement.addEventListener( type, stopPropagationCallback );
					}

					elem[ type ]();

					if ( event.isPropagationStopped() ) {
						lastElement.removeEventListener( type, stopPropagationCallback );
					}

					jQuery.event.triggered = undefined;

					if ( tmp ) {
						elem[ ontype ] = tmp;
					}
				}
			}
		}

		return event.result;
	},

	// Piggyback on a donor event to simulate a different one
	// Used only for `focus(in | out)` events
	simulate: function( type, elem, event ) {
		var e = jQuery.extend(
			new jQuery.Event(),
			event,
			{
				type: type,
				isSimulated: true
			}
		);

		jQuery.event.trigger( e, null, elem );
	}

} );

jQuery.fn.extend( {

	trigger: function( type, data ) {
		return this.each( function() {
			jQuery.event.trigger( type, data, this );
		} );
	},
	triggerHandler: function( type, data ) {
		var elem = this[ 0 ];
		if ( elem ) {
			return jQuery.event.trigger( type, data, elem, true );
		}
	}
} );


// Support: Firefox <=44
// Firefox doesn't have focus(in | out) events
// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
//
// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
// focus(in | out) events fire after focus & blur events,
// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
if ( !support.focusin ) {
	jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {

		// Attach a single capturing handler on the document while someone wants focusin/focusout
		var handler = function( event ) {
			jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
		};

		jQuery.event.special[ fix ] = {
			setup: function() {

				// Handle: regular nodes (via `this.ownerDocument`), window
				// (via `this.document`) & document (via `this`).
				var doc = this.ownerDocument || this.document || this,
					attaches = dataPriv.access( doc, fix );

				if ( !attaches ) {
					doc.addEventListener( orig, handler, true );
				}
				dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
			},
			teardown: function() {
				var doc = this.ownerDocument || this.document || this,
					attaches = dataPriv.access( doc, fix ) - 1;

				if ( !attaches ) {
					doc.removeEventListener( orig, handler, true );
					dataPriv.remove( doc, fix );

				} else {
					dataPriv.access( doc, fix, attaches );
				}
			}
		};
	} );
}
var location = window.location;

var nonce = { guid: Date.now() };

var rquery = ( /\?/ );



// Cross-browser xml parsing
jQuery.parseXML = function( data ) {
	var xml, parserErrorElem;
	if ( !data || typeof data !== "string" ) {
		return null;
	}

	// Support: IE 9 - 11 only
	// IE throws on parseFromString with invalid input.
	try {
		xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
	} catch ( e ) {}

	parserErrorElem = xml && xml.getElementsByTagName( "parsererror" )[ 0 ];
	if ( !xml || parserErrorElem ) {
		jQuery.error( "Invalid XML: " + (
			parserErrorElem ?
				jQuery.map( parserErrorElem.childNodes, function( el ) {
					return el.textContent;
				} ).join( "\n" ) :
				data
		) );
	}
	return xml;
};


var
	rbracket = /\[\]$/,
	rCRLF = /\r?\n/g,
	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
	rsubmittable = /^(?:input|select|textarea|keygen)/i;

function buildParams( prefix, obj, traditional, add ) {
	var name;

	if ( Array.isArray( obj ) ) {

		// Serialize array item.
		jQuery.each( obj, function( i, v ) {
			if ( traditional || rbracket.test( prefix ) ) {

				// Treat each array item as a scalar.
				add( prefix, v );

			} else {

				// Item is non-scalar (array or object), encode its numeric index.
				buildParams(
					prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
					v,
					traditional,
					add
				);
			}
		} );

	} else if ( !traditional && toType( obj ) === "object" ) {

		// Serialize object item.
		for ( name in obj ) {
			buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
		}

	} else {

		// Serialize scalar item.
		add( prefix, obj );
	}
}

// Serialize an array of form elements or a set of
// key/values into a query string
jQuery.param = function( a, traditional ) {
	var prefix,
		s = [],
		add = function( key, valueOrFunction ) {

			// If value is a function, invoke it and use its return value
			var value = isFunction( valueOrFunction ) ?
				valueOrFunction() :
				valueOrFunction;

			s[ s.length ] = encodeURIComponent( key ) + "=" +
				encodeURIComponent( value == null ? "" : value );
		};

	if ( a == null ) {
		return "";
	}

	// If an array was passed in, assume that it is an array of form elements.
	if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {

		// Serialize the form elements
		jQuery.each( a, function() {
			add( this.name, this.value );
		} );

	} else {

		// If traditional, encode the "old" way (the way 1.3.2 or older
		// did it), otherwise encode params recursively.
		for ( prefix in a ) {
			buildParams( prefix, a[ prefix ], traditional, add );
		}
	}

	// Return the resulting serialization
	return s.join( "&" );
};

jQuery.fn.extend( {
	serialize: function() {
		return jQuery.param( this.serializeArray() );
	},
	serializeArray: function() {
		return this.map( function() {

			// Can add propHook for "elements" to filter or add form elements
			var elements = jQuery.prop( this, "elements" );
			return elements ? jQuery.makeArray( elements ) : this;
		} ).filter( function() {
			var type = this.type;

			// Use .is( ":disabled" ) so that fieldset[disabled] works
			return this.name && !jQuery( this ).is( ":disabled" ) &&
				rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
				( this.checked || !rcheckableType.test( type ) );
		} ).map( function( _i, elem ) {
			var val = jQuery( this ).val();

			if ( val == null ) {
				return null;
			}

			if ( Array.isArray( val ) ) {
				return jQuery.map( val, function( val ) {
					return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
				} );
			}

			return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
		} ).get();
	}
} );


var
	r20 = /%20/g,
	rhash = /#.*$/,
	rantiCache = /([?&])_=[^&]*/,
	rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,

	// #7653, #8125, #8152: local protocol detection
	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
	rnoContent = /^(?:GET|HEAD)$/,
	rprotocol = /^\/\//,

	/* Prefilters
	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
	 * 2) These are called:
	 *    - BEFORE asking for a transport
	 *    - AFTER param serialization (s.data is a string if s.processData is true)
	 * 3) key is the dataType
	 * 4) the catchall symbol "*" can be used
	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
	 */
	prefilters = {},

	/* Transports bindings
	 * 1) key is the dataType
	 * 2) the catchall symbol "*" can be used
	 * 3) selection will start with transport dataType and THEN go to "*" if needed
	 */
	transports = {},

	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
	allTypes = "*/".concat( "*" ),

	// Anchor tag for parsing the document origin
	originAnchor = document.createElement( "a" );

originAnchor.href = location.href;

// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
function addToPrefiltersOrTransports( structure ) {

	// dataTypeExpression is optional and defaults to "*"
	return function( dataTypeExpression, func ) {

		if ( typeof dataTypeExpression !== "string" ) {
			func = dataTypeExpression;
			dataTypeExpression = "*";
		}

		var dataType,
			i = 0,
			dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];

		if ( isFunction( func ) ) {

			// For each dataType in the dataTypeExpression
			while ( ( dataType = dataTypes[ i++ ] ) ) {

				// Prepend if requested
				if ( dataType[ 0 ] === "+" ) {
					dataType = dataType.slice( 1 ) || "*";
					( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );

				// Otherwise append
				} else {
					( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
				}
			}
		}
	};
}

// Base inspection function for prefilters and transports
function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {

	var inspected = {},
		seekingTransport = ( structure === transports );

	function inspect( dataType ) {
		var selected;
		inspected[ dataType ] = true;
		jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
			var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
			if ( typeof dataTypeOrTransport === "string" &&
				!seekingTransport && !inspected[ dataTypeOrTransport ] ) {

				options.dataTypes.unshift( dataTypeOrTransport );
				inspect( dataTypeOrTransport );
				return false;
			} else if ( seekingTransport ) {
				return !( selected = dataTypeOrTransport );
			}
		} );
		return selected;
	}

	return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
}

// A special extend for ajax options
// that takes "flat" options (not to be deep extended)
// Fixes #9887
function ajaxExtend( target, src ) {
	var key, deep,
		flatOptions = jQuery.ajaxSettings.flatOptions || {};

	for ( key in src ) {
		if ( src[ key ] !== undefined ) {
			( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
		}
	}
	if ( deep ) {
		jQuery.extend( true, target, deep );
	}

	return target;
}

/* Handles responses to an ajax request:
 * - finds the right dataType (mediates between content-type and expected dataType)
 * - returns the corresponding response
 */
function ajaxHandleResponses( s, jqXHR, responses ) {

	var ct, type, finalDataType, firstDataType,
		contents = s.contents,
		dataTypes = s.dataTypes;

	// Remove auto dataType and get content-type in the process
	while ( dataTypes[ 0 ] === "*" ) {
		dataTypes.shift();
		if ( ct === undefined ) {
			ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
		}
	}

	// Check if we're dealing with a known content-type
	if ( ct ) {
		for ( type in contents ) {
			if ( contents[ type ] && contents[ type ].test( ct ) ) {
				dataTypes.unshift( type );
				break;
			}
		}
	}

	// Check to see if we have a response for the expected dataType
	if ( dataTypes[ 0 ] in responses ) {
		finalDataType = dataTypes[ 0 ];
	} else {

		// Try convertible dataTypes
		for ( type in responses ) {
			if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
				finalDataType = type;
				break;
			}
			if ( !firstDataType ) {
				firstDataType = type;
			}
		}

		// Or just use first one
		finalDataType = finalDataType || firstDataType;
	}

	// If we found a dataType
	// We add the dataType to the list if needed
	// and return the corresponding response
	if ( finalDataType ) {
		if ( finalDataType !== dataTypes[ 0 ] ) {
			dataTypes.unshift( finalDataType );
		}
		return responses[ finalDataType ];
	}
}

/* Chain conversions given the request and the original response
 * Also sets the responseXXX fields on the jqXHR instance
 */
function ajaxConvert( s, response, jqXHR, isSuccess ) {
	var conv2, current, conv, tmp, prev,
		converters = {},

		// Work with a copy of dataTypes in case we need to modify it for conversion
		dataTypes = s.dataTypes.slice();

	// Create converters map with lowercased keys
	if ( dataTypes[ 1 ] ) {
		for ( conv in s.converters ) {
			converters[ conv.toLowerCase() ] = s.converters[ conv ];
		}
	}

	current = dataTypes.shift();

	// Convert to each sequential dataType
	while ( current ) {

		if ( s.responseFields[ current ] ) {
			jqXHR[ s.responseFields[ current ] ] = response;
		}

		// Apply the dataFilter if provided
		if ( !prev && isSuccess && s.dataFilter ) {
			response = s.dataFilter( response, s.dataType );
		}

		prev = current;
		current = dataTypes.shift();

		if ( current ) {

			// There's only work to do if current dataType is non-auto
			if ( current === "*" ) {

				current = prev;

			// Convert response if prev dataType is non-auto and differs from current
			} else if ( prev !== "*" && prev !== current ) {

				// Seek a direct converter
				conv = converters[ prev + " " + current ] || converters[ "* " + current ];

				// If none found, seek a pair
				if ( !conv ) {
					for ( conv2 in converters ) {

						// If conv2 outputs current
						tmp = conv2.split( " " );
						if ( tmp[ 1 ] === current ) {

							// If prev can be converted to accepted input
							conv = converters[ prev + " " + tmp[ 0 ] ] ||
								converters[ "* " + tmp[ 0 ] ];
							if ( conv ) {

								// Condense equivalence converters
								if ( conv === true ) {
									conv = converters[ conv2 ];

								// Otherwise, insert the intermediate dataType
								} else if ( converters[ conv2 ] !== true ) {
									current = tmp[ 0 ];
									dataTypes.unshift( tmp[ 1 ] );
								}
								break;
							}
						}
					}
				}

				// Apply converter (if not an equivalence)
				if ( conv !== true ) {

					// Unless errors are allowed to bubble, catch and return them
					if ( conv && s.throws ) {
						response = conv( response );
					} else {
						try {
							response = conv( response );
						} catch ( e ) {
							return {
								state: "parsererror",
								error: conv ? e : "No conversion from " + prev + " to " + current
							};
						}
					}
				}
			}
		}
	}

	return { state: "success", data: response };
}

jQuery.extend( {

	// Counter for holding the number of active queries
	active: 0,

	// Last-Modified header cache for next request
	lastModified: {},
	etag: {},

	ajaxSettings: {
		url: location.href,
		type: "GET",
		isLocal: rlocalProtocol.test( location.protocol ),
		global: true,
		processData: true,
		async: true,
		contentType: "application/x-www-form-urlencoded; charset=UTF-8",

		/*
		timeout: 0,
		data: null,
		dataType: null,
		username: null,
		password: null,
		cache: null,
		throws: false,
		traditional: false,
		headers: {},
		*/

		accepts: {
			"*": allTypes,
			text: "text/plain",
			html: "text/html",
			xml: "application/xml, text/xml",
			json: "application/json, text/javascript"
		},

		contents: {
			xml: /\bxml\b/,
			html: /\bhtml/,
			json: /\bjson\b/
		},

		responseFields: {
			xml: "responseXML",
			text: "responseText",
			json: "responseJSON"
		},

		// Data converters
		// Keys separate source (or catchall "*") and destination types with a single space
		converters: {

			// Convert anything to text
			"* text": String,

			// Text to html (true = no transformation)
			"text html": true,

			// Evaluate text as a json expression
			"text json": JSON.parse,

			// Parse text as xml
			"text xml": jQuery.parseXML
		},

		// For options that shouldn't be deep extended:
		// you can add your own custom options here if
		// and when you create one that shouldn't be
		// deep extended (see ajaxExtend)
		flatOptions: {
			url: true,
			context: true
		}
	},

	// Creates a full fledged settings object into target
	// with both ajaxSettings and settings fields.
	// If target is omitted, writes into ajaxSettings.
	ajaxSetup: function( target, settings ) {
		return settings ?

			// Building a settings object
			ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :

			// Extending ajaxSettings
			ajaxExtend( jQuery.ajaxSettings, target );
	},

	ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
	ajaxTransport: addToPrefiltersOrTransports( transports ),

	// Main method
	ajax: function( url, options ) {

		// If url is an object, simulate pre-1.5 signature
		if ( typeof url === "object" ) {
			options = url;
			url = undefined;
		}

		// Force options to be an object
		options = options || {};

		var transport,

			// URL without anti-cache param
			cacheURL,

			// Response headers
			responseHeadersString,
			responseHeaders,

			// timeout handle
			timeoutTimer,

			// Url cleanup var
			urlAnchor,

			// Request state (becomes false upon send and true upon completion)
			completed,

			// To know if global events are to be dispatched
			fireGlobals,

			// Loop variable
			i,

			// uncached part of the url
			uncached,

			// Create the final options object
			s = jQuery.ajaxSetup( {}, options ),

			// Callbacks context
			callbackContext = s.context || s,

			// Context for global events is callbackContext if it is a DOM node or jQuery collection
			globalEventContext = s.context &&
				( callbackContext.nodeType || callbackContext.jquery ) ?
				jQuery( callbackContext ) :
				jQuery.event,

			// Deferreds
			deferred = jQuery.Deferred(),
			completeDeferred = jQuery.Callbacks( "once memory" ),

			// Status-dependent callbacks
			statusCode = s.statusCode || {},

			// Headers (they are sent all at once)
			requestHeaders = {},
			requestHeadersNames = {},

			// Default abort message
			strAbort = "canceled",

			// Fake xhr
			jqXHR = {
				readyState: 0,

				// Builds headers hashtable if needed
				getResponseHeader: function( key ) {
					var match;
					if ( completed ) {
						if ( !responseHeaders ) {
							responseHeaders = {};
							while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
								responseHeaders[ match[ 1 ].toLowerCase() + " " ] =
									( responseHeaders[ match[ 1 ].toLowerCase() + " " ] || [] )
										.concat( match[ 2 ] );
							}
						}
						match = responseHeaders[ key.toLowerCase() + " " ];
					}
					return match == null ? null : match.join( ", " );
				},

				// Raw string
				getAllResponseHeaders: function() {
					return completed ? responseHeadersString : null;
				},

				// Caches the header
				setRequestHeader: function( name, value ) {
					if ( completed == null ) {
						name = requestHeadersNames[ name.toLowerCase() ] =
							requestHeadersNames[ name.toLowerCase() ] || name;
						requestHeaders[ name ] = value;
					}
					return this;
				},

				// Overrides response content-type header
				overrideMimeType: function( type ) {
					if ( completed == null ) {
						s.mimeType = type;
					}
					return this;
				},

				// Status-dependent callbacks
				statusCode: function( map ) {
					var code;
					if ( map ) {
						if ( completed ) {

							// Execute the appropriate callbacks
							jqXHR.always( map[ jqXHR.status ] );
						} else {

							// Lazy-add the new callbacks in a way that preserves old ones
							for ( code in map ) {
								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
							}
						}
					}
					return this;
				},

				// Cancel the request
				abort: function( statusText ) {
					var finalText = statusText || strAbort;
					if ( transport ) {
						transport.abort( finalText );
					}
					done( 0, finalText );
					return this;
				}
			};

		// Attach deferreds
		deferred.promise( jqXHR );

		// Add protocol if not provided (prefilters might expect it)
		// Handle falsy url in the settings object (#10093: consistency with old signature)
		// We also use the url parameter if available
		s.url = ( ( url || s.url || location.href ) + "" )
			.replace( rprotocol, location.protocol + "//" );

		// Alias method option to type as per ticket #12004
		s.type = options.method || options.type || s.method || s.type;

		// Extract dataTypes list
		s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];

		// A cross-domain request is in order when the origin doesn't match the current origin.
		if ( s.crossDomain == null ) {
			urlAnchor = document.createElement( "a" );

			// Support: IE <=8 - 11, Edge 12 - 15
			// IE throws exception on accessing the href property if url is malformed,
			// e.g. http://example.com:80x/
			try {
				urlAnchor.href = s.url;

				// Support: IE <=8 - 11 only
				// Anchor's host property isn't correctly set when s.url is relative
				urlAnchor.href = urlAnchor.href;
				s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
					urlAnchor.protocol + "//" + urlAnchor.host;
			} catch ( e ) {

				// If there is an error parsing the URL, assume it is crossDomain,
				// it can be rejected by the transport if it is invalid
				s.crossDomain = true;
			}
		}

		// Convert data if not already a string
		if ( s.data && s.processData && typeof s.data !== "string" ) {
			s.data = jQuery.param( s.data, s.traditional );
		}

		// Apply prefilters
		inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );

		// If request was aborted inside a prefilter, stop there
		if ( completed ) {
			return jqXHR;
		}

		// We can fire global events as of now if asked to
		// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
		fireGlobals = jQuery.event && s.global;

		// Watch for a new set of requests
		if ( fireGlobals && jQuery.active++ === 0 ) {
			jQuery.event.trigger( "ajaxStart" );
		}

		// Uppercase the type
		s.type = s.type.toUpperCase();

		// Determine if request has content
		s.hasContent = !rnoContent.test( s.type );

		// Save the URL in case we're toying with the If-Modified-Since
		// and/or If-None-Match header later on
		// Remove hash to simplify url manipulation
		cacheURL = s.url.replace( rhash, "" );

		// More options handling for requests with no content
		if ( !s.hasContent ) {

			// Remember the hash so we can put it back
			uncached = s.url.slice( cacheURL.length );

			// If data is available and should be processed, append data to url
			if ( s.data && ( s.processData || typeof s.data === "string" ) ) {
				cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;

				// #9682: remove data so that it's not used in an eventual retry
				delete s.data;
			}

			// Add or update anti-cache param if needed
			if ( s.cache === false ) {
				cacheURL = cacheURL.replace( rantiCache, "$1" );
				uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce.guid++ ) +
					uncached;
			}

			// Put hash and anti-cache on the URL that will be requested (gh-1732)
			s.url = cacheURL + uncached;

		// Change '%20' to '+' if this is encoded form body content (gh-2658)
		} else if ( s.data && s.processData &&
			( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
			s.data = s.data.replace( r20, "+" );
		}

		// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
		if ( s.ifModified ) {
			if ( jQuery.lastModified[ cacheURL ] ) {
				jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
			}
			if ( jQuery.etag[ cacheURL ] ) {
				jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
			}
		}

		// Set the correct header, if data is being sent
		if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
			jqXHR.setRequestHeader( "Content-Type", s.contentType );
		}

		// Set the Accepts header for the server, depending on the dataType
		jqXHR.setRequestHeader(
			"Accept",
			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
				s.accepts[ s.dataTypes[ 0 ] ] +
					( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
				s.accepts[ "*" ]
		);

		// Check for headers option
		for ( i in s.headers ) {
			jqXHR.setRequestHeader( i, s.headers[ i ] );
		}

		// Allow custom headers/mimetypes and early abort
		if ( s.beforeSend &&
			( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {

			// Abort if not done already and return
			return jqXHR.abort();
		}

		// Aborting is no longer a cancellation
		strAbort = "abort";

		// Install callbacks on deferreds
		completeDeferred.add( s.complete );
		jqXHR.done( s.success );
		jqXHR.fail( s.error );

		// Get transport
		transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );

		// If no transport, we auto-abort
		if ( !transport ) {
			done( -1, "No Transport" );
		} else {
			jqXHR.readyState = 1;

			// Send global event
			if ( fireGlobals ) {
				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
			}

			// If request was aborted inside ajaxSend, stop there
			if ( completed ) {
				return jqXHR;
			}

			// Timeout
			if ( s.async && s.timeout > 0 ) {
				timeoutTimer = window.setTimeout( function() {
					jqXHR.abort( "timeout" );
				}, s.timeout );
			}

			try {
				completed = false;
				transport.send( requestHeaders, done );
			} catch ( e ) {

				// Rethrow post-completion exceptions
				if ( completed ) {
					throw e;
				}

				// Propagate others as results
				done( -1, e );
			}
		}

		// Callback for when everything is done
		function done( status, nativeStatusText, responses, headers ) {
			var isSuccess, success, error, response, modified,
				statusText = nativeStatusText;

			// Ignore repeat invocations
			if ( completed ) {
				return;
			}

			completed = true;

			// Clear timeout if it exists
			if ( timeoutTimer ) {
				window.clearTimeout( timeoutTimer );
			}

			// Dereference transport for early garbage collection
			// (no matter how long the jqXHR object will be used)
			transport = undefined;

			// Cache response headers
			responseHeadersString = headers || "";

			// Set readyState
			jqXHR.readyState = status > 0 ? 4 : 0;

			// Determine if successful
			isSuccess = status >= 200 && status < 300 || status === 304;

			// Get response data
			if ( responses ) {
				response = ajaxHandleResponses( s, jqXHR, responses );
			}

			// Use a noop converter for missing script but not if jsonp
			if ( !isSuccess &&
				jQuery.inArray( "script", s.dataTypes ) > -1 &&
				jQuery.inArray( "json", s.dataTypes ) < 0 ) {
				s.converters[ "text script" ] = function() {};
			}

			// Convert no matter what (that way responseXXX fields are always set)
			response = ajaxConvert( s, response, jqXHR, isSuccess );

			// If successful, handle type chaining
			if ( isSuccess ) {

				// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
				if ( s.ifModified ) {
					modified = jqXHR.getResponseHeader( "Last-Modified" );
					if ( modified ) {
						jQuery.lastModified[ cacheURL ] = modified;
					}
					modified = jqXHR.getResponseHeader( "etag" );
					if ( modified ) {
						jQuery.etag[ cacheURL ] = modified;
					}
				}

				// if no content
				if ( status === 204 || s.type === "HEAD" ) {
					statusText = "nocontent";

				// if not modified
				} else if ( status === 304 ) {
					statusText = "notmodified";

				// If we have data, let's convert it
				} else {
					statusText = response.state;
					success = response.data;
					error = response.error;
					isSuccess = !error;
				}
			} else {

				// Extract error from statusText and normalize for non-aborts
				error = statusText;
				if ( status || !statusText ) {
					statusText = "error";
					if ( status < 0 ) {
						status = 0;
					}
				}
			}

			// Set data for the fake xhr object
			jqXHR.status = status;
			jqXHR.statusText = ( nativeStatusText || statusText ) + "";

			// Success/Error
			if ( isSuccess ) {
				deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
			} else {
				deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
			}

			// Status-dependent callbacks
			jqXHR.statusCode( statusCode );
			statusCode = undefined;

			if ( fireGlobals ) {
				globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
					[ jqXHR, s, isSuccess ? success : error ] );
			}

			// Complete
			completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );

			if ( fireGlobals ) {
				globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );

				// Handle the global AJAX counter
				if ( !( --jQuery.active ) ) {
					jQuery.event.trigger( "ajaxStop" );
				}
			}
		}

		return jqXHR;
	},

	getJSON: function( url, data, callback ) {
		return jQuery.get( url, data, callback, "json" );
	},

	getScript: function( url, callback ) {
		return jQuery.get( url, undefined, callback, "script" );
	}
} );

jQuery.each( [ "get", "post" ], function( _i, method ) {
	jQuery[ method ] = function( url, data, callback, type ) {

		// Shift arguments if data argument was omitted
		if ( isFunction( data ) ) {
			type = type || callback;
			callback = data;
			data = undefined;
		}

		// The url can be an options object (which then must have .url)
		return jQuery.ajax( jQuery.extend( {
			url: url,
			type: method,
			dataType: type,
			data: data,
			success: callback
		}, jQuery.isPlainObject( url ) && url ) );
	};
} );

jQuery.ajaxPrefilter( function( s ) {
	var i;
	for ( i in s.headers ) {
		if ( i.toLowerCase() === "content-type" ) {
			s.contentType = s.headers[ i ] || "";
		}
	}
} );


jQuery._evalUrl = function( url, options, doc ) {
	return jQuery.ajax( {
		url: url,

		// Make this explicit, since user can override this through ajaxSetup (#11264)
		type: "GET",
		dataType: "script",
		cache: true,
		async: false,
		global: false,

		// Only evaluate the response if it is successful (gh-4126)
		// dataFilter is not invoked for failure responses, so using it instead
		// of the default converter is kludgy but it works.
		converters: {
			"text script": function() {}
		},
		dataFilter: function( response ) {
			jQuery.globalEval( response, options, doc );
		}
	} );
};


jQuery.fn.extend( {
	wrapAll: function( html ) {
		var wrap;

		if ( this[ 0 ] ) {
			if ( isFunction( html ) ) {
				html = html.call( this[ 0 ] );
			}

			// The elements to wrap the target around
			wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );

			if ( this[ 0 ].parentNode ) {
				wrap.insertBefore( this[ 0 ] );
			}

			wrap.map( function() {
				var elem = this;

				while ( elem.firstElementChild ) {
					elem = elem.firstElementChild;
				}

				return elem;
			} ).append( this );
		}

		return this;
	},

	wrapInner: function( html ) {
		if ( isFunction( html ) ) {
			return this.each( function( i ) {
				jQuery( this ).wrapInner( html.call( this, i ) );
			} );
		}

		return this.each( function() {
			var self = jQuery( this ),
				contents = self.contents();

			if ( contents.length ) {
				contents.wrapAll( html );

			} else {
				self.append( html );
			}
		} );
	},

	wrap: function( html ) {
		var htmlIsFunction = isFunction( html );

		return this.each( function( i ) {
			jQuery( this ).wrapAll( htmlIsFunction ? html.call( this, i ) : html );
		} );
	},

	unwrap: function( selector ) {
		this.parent( selector ).not( "body" ).each( function() {
			jQuery( this ).replaceWith( this.childNodes );
		} );
		return this;
	}
} );


jQuery.expr.pseudos.hidden = function( elem ) {
	return !jQuery.expr.pseudos.visible( elem );
};
jQuery.expr.pseudos.visible = function( elem ) {
	return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
};




jQuery.ajaxSettings.xhr = function() {
	try {
		return new window.XMLHttpRequest();
	} catch ( e ) {}
};

var xhrSuccessStatus = {

		// File protocol always yields status code 0, assume 200
		0: 200,

		// Support: IE <=9 only
		// #1450: sometimes IE returns 1223 when it should be 204
		1223: 204
	},
	xhrSupported = jQuery.ajaxSettings.xhr();

support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
support.ajax = xhrSupported = !!xhrSupported;

jQuery.ajaxTransport( function( options ) {
	var callback, errorCallback;

	// Cross domain only allowed if supported through XMLHttpRequest
	if ( support.cors || xhrSupported && !options.crossDomain ) {
		return {
			send: function( headers, complete ) {
				var i,
					xhr = options.xhr();

				xhr.open(
					options.type,
					options.url,
					options.async,
					options.username,
					options.password
				);

				// Apply custom fields if provided
				if ( options.xhrFields ) {
					for ( i in options.xhrFields ) {
						xhr[ i ] = options.xhrFields[ i ];
					}
				}

				// Override mime type if needed
				if ( options.mimeType && xhr.overrideMimeType ) {
					xhr.overrideMimeType( options.mimeType );
				}

				// X-Requested-With header
				// For cross-domain requests, seeing as conditions for a preflight are
				// akin to a jigsaw puzzle, we simply never set it to be sure.
				// (it can always be set on a per-request basis or even using ajaxSetup)
				// For same-domain requests, won't change header if already provided.
				if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
					headers[ "X-Requested-With" ] = "XMLHttpRequest";
				}

				// Set headers
				for ( i in headers ) {
					xhr.setRequestHeader( i, headers[ i ] );
				}

				// Callback
				callback = function( type ) {
					return function() {
						if ( callback ) {
							callback = errorCallback = xhr.onload =
								xhr.onerror = xhr.onabort = xhr.ontimeout =
									xhr.onreadystatechange = null;

							if ( type === "abort" ) {
								xhr.abort();
							} else if ( type === "error" ) {

								// Support: IE <=9 only
								// On a manual native abort, IE9 throws
								// errors on any property access that is not readyState
								if ( typeof xhr.status !== "number" ) {
									complete( 0, "error" );
								} else {
									complete(

										// File: protocol always yields status 0; see #8605, #14207
										xhr.status,
										xhr.statusText
									);
								}
							} else {
								complete(
									xhrSuccessStatus[ xhr.status ] || xhr.status,
									xhr.statusText,

									// Support: IE <=9 only
									// IE9 has no XHR2 but throws on binary (trac-11426)
									// For XHR2 non-text, let the caller handle it (gh-2498)
									( xhr.responseType || "text" ) !== "text"  ||
									typeof xhr.responseText !== "string" ?
										{ binary: xhr.response } :
										{ text: xhr.responseText },
									xhr.getAllResponseHeaders()
								);
							}
						}
					};
				};

				// Listen to events
				xhr.onload = callback();
				errorCallback = xhr.onerror = xhr.ontimeout = callback( "error" );

				// Support: IE 9 only
				// Use onreadystatechange to replace onabort
				// to handle uncaught aborts
				if ( xhr.onabort !== undefined ) {
					xhr.onabort = errorCallback;
				} else {
					xhr.onreadystatechange = function() {

						// Check readyState before timeout as it changes
						if ( xhr.readyState === 4 ) {

							// Allow onerror to be called first,
							// but that will not handle a native abort
							// Also, save errorCallback to a variable
							// as xhr.onerror cannot be accessed
							window.setTimeout( function() {
								if ( callback ) {
									errorCallback();
								}
							} );
						}
					};
				}

				// Create the abort callback
				callback = callback( "abort" );

				try {

					// Do send the request (this may raise an exception)
					xhr.send( options.hasContent && options.data || null );
				} catch ( e ) {

					// #14683: Only rethrow if this hasn't been notified as an error yet
					if ( callback ) {
						throw e;
					}
				}
			},

			abort: function() {
				if ( callback ) {
					callback();
				}
			}
		};
	}
} );




// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
jQuery.ajaxPrefilter( function( s ) {
	if ( s.crossDomain ) {
		s.contents.script = false;
	}
} );

// Install script dataType
jQuery.ajaxSetup( {
	accepts: {
		script: "text/javascript, application/javascript, " +
			"application/ecmascript, application/x-ecmascript"
	},
	contents: {
		script: /\b(?:java|ecma)script\b/
	},
	converters: {
		"text script": function( text ) {
			jQuery.globalEval( text );
			return text;
		}
	}
} );

// Handle cache's special case and crossDomain
jQuery.ajaxPrefilter( "script", function( s ) {
	if ( s.cache === undefined ) {
		s.cache = false;
	}
	if ( s.crossDomain ) {
		s.type = "GET";
	}
} );

// Bind script tag hack transport
jQuery.ajaxTransport( "script", function( s ) {

	// This transport only deals with cross domain or forced-by-attrs requests
	if ( s.crossDomain || s.scriptAttrs ) {
		var script, callback;
		return {
			send: function( _, complete ) {
				script = jQuery( "<script>" )
					.attr( s.scriptAttrs || {} )
					.prop( { charset: s.scriptCharset, src: s.url } )
					.on( "load error", callback = function( evt ) {
						script.remove();
						callback = null;
						if ( evt ) {
							complete( evt.type === "error" ? 404 : 200, evt.type );
						}
					} );

				// Use native DOM manipulation to avoid our domManip AJAX trickery
				document.head.appendChild( script[ 0 ] );
			},
			abort: function() {
				if ( callback ) {
					callback();
				}
			}
		};
	}
} );




var oldCallbacks = [],
	rjsonp = /(=)\?(?=&|$)|\?\?/;

// Default jsonp settings
jQuery.ajaxSetup( {
	jsonp: "callback",
	jsonpCallback: function() {
		var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce.guid++ ) );
		this[ callback ] = true;
		return callback;
	}
} );

// Detect, normalize options and install callbacks for jsonp requests
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {

	var callbackName, overwritten, responseContainer,
		jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
			"url" :
			typeof s.data === "string" &&
				( s.contentType || "" )
					.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
				rjsonp.test( s.data ) && "data"
		);

	// Handle iff the expected data type is "jsonp" or we have a parameter to set
	if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {

		// Get callback name, remembering preexisting value associated with it
		callbackName = s.jsonpCallback = isFunction( s.jsonpCallback ) ?
			s.jsonpCallback() :
			s.jsonpCallback;

		// Insert callback into url or form data
		if ( jsonProp ) {
			s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
		} else if ( s.jsonp !== false ) {
			s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
		}

		// Use data converter to retrieve json after script execution
		s.converters[ "script json" ] = function() {
			if ( !responseContainer ) {
				jQuery.error( callbackName + " was not called" );
			}
			return responseContainer[ 0 ];
		};

		// Force json dataType
		s.dataTypes[ 0 ] = "json";

		// Install callback
		overwritten = window[ callbackName ];
		window[ callbackName ] = function() {
			responseContainer = arguments;
		};

		// Clean-up function (fires after converters)
		jqXHR.always( function() {

			// If previous value didn't exist - remove it
			if ( overwritten === undefined ) {
				jQuery( window ).removeProp( callbackName );

			// Otherwise restore preexisting value
			} else {
				window[ callbackName ] = overwritten;
			}

			// Save back as free
			if ( s[ callbackName ] ) {

				// Make sure that re-using the options doesn't screw things around
				s.jsonpCallback = originalSettings.jsonpCallback;

				// Save the callback name for future use
				oldCallbacks.push( callbackName );
			}

			// Call if it was a function and we have a response
			if ( responseContainer && isFunction( overwritten ) ) {
				overwritten( responseContainer[ 0 ] );
			}

			responseContainer = overwritten = undefined;
		} );

		// Delegate to script
		return "script";
	}
} );




// Support: Safari 8 only
// In Safari 8 documents created via document.implementation.createHTMLDocument
// collapse sibling forms: the second one becomes a child of the first one.
// Because of that, this security measure has to be disabled in Safari 8.
// https://bugs.webkit.org/show_bug.cgi?id=137337
support.createHTMLDocument = ( function() {
	var body = document.implementation.createHTMLDocument( "" ).body;
	body.innerHTML = "<form></form><form></form>";
	return body.childNodes.length === 2;
} )();


// Argument "data" should be string of html
// context (optional): If specified, the fragment will be created in this context,
// defaults to document
// keepScripts (optional): If true, will include scripts passed in the html string
jQuery.parseHTML = function( data, context, keepScripts ) {
	if ( typeof data !== "string" ) {
		return [];
	}
	if ( typeof context === "boolean" ) {
		keepScripts = context;
		context = false;
	}

	var base, parsed, scripts;

	if ( !context ) {

		// Stop scripts or inline event handlers from being executed immediately
		// by using document.implementation
		if ( support.createHTMLDocument ) {
			context = document.implementation.createHTMLDocument( "" );

			// Set the base href for the created document
			// so any parsed elements with URLs
			// are based on the document's URL (gh-2965)
			base = context.createElement( "base" );
			base.href = document.location.href;
			context.head.appendChild( base );
		} else {
			context = document;
		}
	}

	parsed = rsingleTag.exec( data );
	scripts = !keepScripts && [];

	// Single tag
	if ( parsed ) {
		return [ context.createElement( parsed[ 1 ] ) ];
	}

	parsed = buildFragment( [ data ], context, scripts );

	if ( scripts && scripts.length ) {
		jQuery( scripts ).remove();
	}

	return jQuery.merge( [], parsed.childNodes );
};


/**
 * Load a url into a page
 */
jQuery.fn.load = function( url, params, callback ) {
	var selector, type, response,
		self = this,
		off = url.indexOf( " " );

	if ( off > -1 ) {
		selector = stripAndCollapse( url.slice( off ) );
		url = url.slice( 0, off );
	}

	// If it's a function
	if ( isFunction( params ) ) {

		// We assume that it's the callback
		callback = params;
		params = undefined;

	// Otherwise, build a param string
	} else if ( params && typeof params === "object" ) {
		type = "POST";
	}

	// If we have elements to modify, make the request
	if ( self.length > 0 ) {
		jQuery.ajax( {
			url: url,

			// If "type" variable is undefined, then "GET" method will be used.
			// Make value of this field explicit since
			// user can override it through ajaxSetup method
			type: type || "GET",
			dataType: "html",
			data: params
		} ).done( function( responseText ) {

			// Save response for use in complete callback
			response = arguments;

			self.html( selector ?

				// If a selector was specified, locate the right elements in a dummy div
				// Exclude scripts to avoid IE 'Permission Denied' errors
				jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :

				// Otherwise use the full result
				responseText );

		// If the request succeeds, this function gets "data", "status", "jqXHR"
		// but they are ignored because response was set above.
		// If it fails, this function gets "jqXHR", "status", "error"
		} ).always( callback && function( jqXHR, status ) {
			self.each( function() {
				callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
			} );
		} );
	}

	return this;
};




jQuery.expr.pseudos.animated = function( elem ) {
	return jQuery.grep( jQuery.timers, function( fn ) {
		return elem === fn.elem;
	} ).length;
};




jQuery.offset = {
	setOffset: function( elem, options, i ) {
		var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
			position = jQuery.css( elem, "position" ),
			curElem = jQuery( elem ),
			props = {};

		// Set position first, in-case top/left are set even on static elem
		if ( position === "static" ) {
			elem.style.position = "relative";
		}

		curOffset = curElem.offset();
		curCSSTop = jQuery.css( elem, "top" );
		curCSSLeft = jQuery.css( elem, "left" );
		calculatePosition = ( position === "absolute" || position === "fixed" ) &&
			( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;

		// Need to be able to calculate position if either
		// top or left is auto and position is either absolute or fixed
		if ( calculatePosition ) {
			curPosition = curElem.position();
			curTop = curPosition.top;
			curLeft = curPosition.left;

		} else {
			curTop = parseFloat( curCSSTop ) || 0;
			curLeft = parseFloat( curCSSLeft ) || 0;
		}

		if ( isFunction( options ) ) {

			// Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
			options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
		}

		if ( options.top != null ) {
			props.top = ( options.top - curOffset.top ) + curTop;
		}
		if ( options.left != null ) {
			props.left = ( options.left - curOffset.left ) + curLeft;
		}

		if ( "using" in options ) {
			options.using.call( elem, props );

		} else {
			curElem.css( props );
		}
	}
};

jQuery.fn.extend( {

	// offset() relates an element's border box to the document origin
	offset: function( options ) {

		// Preserve chaining for setter
		if ( arguments.length ) {
			return options === undefined ?
				this :
				this.each( function( i ) {
					jQuery.offset.setOffset( this, options, i );
				} );
		}

		var rect, win,
			elem = this[ 0 ];

		if ( !elem ) {
			return;
		}

		// Return zeros for disconnected and hidden (display: none) elements (gh-2310)
		// Support: IE <=11 only
		// Running getBoundingClientRect on a
		// disconnected node in IE throws an error
		if ( !elem.getClientRects().length ) {
			return { top: 0, left: 0 };
		}

		// Get document-relative position by adding viewport scroll to viewport-relative gBCR
		rect = elem.getBoundingClientRect();
		win = elem.ownerDocument.defaultView;
		return {
			top: rect.top + win.pageYOffset,
			left: rect.left + win.pageXOffset
		};
	},

	// position() relates an element's margin box to its offset parent's padding box
	// This corresponds to the behavior of CSS absolute positioning
	position: function() {
		if ( !this[ 0 ] ) {
			return;
		}

		var offsetParent, offset, doc,
			elem = this[ 0 ],
			parentOffset = { top: 0, left: 0 };

		// position:fixed elements are offset from the viewport, which itself always has zero offset
		if ( jQuery.css( elem, "position" ) === "fixed" ) {

			// Assume position:fixed implies availability of getBoundingClientRect
			offset = elem.getBoundingClientRect();

		} else {
			offset = this.offset();

			// Account for the *real* offset parent, which can be the document or its root element
			// when a statically positioned element is identified
			doc = elem.ownerDocument;
			offsetParent = elem.offsetParent || doc.documentElement;
			while ( offsetParent &&
				( offsetParent === doc.body || offsetParent === doc.documentElement ) &&
				jQuery.css( offsetParent, "position" ) === "static" ) {

				offsetParent = offsetParent.parentNode;
			}
			if ( offsetParent && offsetParent !== elem && offsetParent.nodeType === 1 ) {

				// Incorporate borders into its offset, since they are outside its content origin
				parentOffset = jQuery( offsetParent ).offset();
				parentOffset.top += jQuery.css( offsetParent, "borderTopWidth", true );
				parentOffset.left += jQuery.css( offsetParent, "borderLeftWidth", true );
			}
		}

		// Subtract parent offsets and element margins
		return {
			top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
		};
	},

	// This method will return documentElement in the following cases:
	// 1) For the element inside the iframe without offsetParent, this method will return
	//    documentElement of the parent window
	// 2) For the hidden or detached element
	// 3) For body or html element, i.e. in case of the html node - it will return itself
	//
	// but those exceptions were never presented as a real life use-cases
	// and might be considered as more preferable results.
	//
	// This logic, however, is not guaranteed and can change at any point in the future
	offsetParent: function() {
		return this.map( function() {
			var offsetParent = this.offsetParent;

			while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
				offsetParent = offsetParent.offsetParent;
			}

			return offsetParent || documentElement;
		} );
	}
} );

// Create scrollLeft and scrollTop methods
jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
	var top = "pageYOffset" === prop;

	jQuery.fn[ method ] = function( val ) {
		return access( this, function( elem, method, val ) {

			// Coalesce documents and windows
			var win;
			if ( isWindow( elem ) ) {
				win = elem;
			} else if ( elem.nodeType === 9 ) {
				win = elem.defaultView;
			}

			if ( val === undefined ) {
				return win ? win[ prop ] : elem[ method ];
			}

			if ( win ) {
				win.scrollTo(
					!top ? val : win.pageXOffset,
					top ? val : win.pageYOffset
				);

			} else {
				elem[ method ] = val;
			}
		}, method, val, arguments.length );
	};
} );

// Support: Safari <=7 - 9.1, Chrome <=37 - 49
// Add the top/left cssHooks using jQuery.fn.position
// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
// getComputedStyle returns percent when specified for top/left/bottom/right;
// rather than make the css module depend on the offset module, just check for it here
jQuery.each( [ "top", "left" ], function( _i, prop ) {
	jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
		function( elem, computed ) {
			if ( computed ) {
				computed = curCSS( elem, prop );

				// If curCSS returns percentage, fallback to offset
				return rnumnonpx.test( computed ) ?
					jQuery( elem ).position()[ prop ] + "px" :
					computed;
			}
		}
	);
} );


// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
	jQuery.each( {
		padding: "inner" + name,
		content: type,
		"": "outer" + name
	}, function( defaultExtra, funcName ) {

		// Margin is only for outerHeight, outerWidth
		jQuery.fn[ funcName ] = function( margin, value ) {
			var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
				extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );

			return access( this, function( elem, type, value ) {
				var doc;

				if ( isWindow( elem ) ) {

					// $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
					return funcName.indexOf( "outer" ) === 0 ?
						elem[ "inner" + name ] :
						elem.document.documentElement[ "client" + name ];
				}

				// Get document width or height
				if ( elem.nodeType === 9 ) {
					doc = elem.documentElement;

					// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
					// whichever is greatest
					return Math.max(
						elem.body[ "scroll" + name ], doc[ "scroll" + name ],
						elem.body[ "offset" + name ], doc[ "offset" + name ],
						doc[ "client" + name ]
					);
				}

				return value === undefined ?

					// Get width or height on the element, requesting but not forcing parseFloat
					jQuery.css( elem, type, extra ) :

					// Set width or height on the element
					jQuery.style( elem, type, value, extra );
			}, type, chainable ? margin : undefined, chainable );
		};
	} );
} );


jQuery.each( [
	"ajaxStart",
	"ajaxStop",
	"ajaxComplete",
	"ajaxError",
	"ajaxSuccess",
	"ajaxSend"
], function( _i, type ) {
	jQuery.fn[ type ] = function( fn ) {
		return this.on( type, fn );
	};
} );




jQuery.fn.extend( {

	bind: function( types, data, fn ) {
		return this.on( types, null, data, fn );
	},
	unbind: function( types, fn ) {
		return this.off( types, null, fn );
	},

	delegate: function( selector, types, data, fn ) {
		return this.on( types, selector, data, fn );
	},
	undelegate: function( selector, types, fn ) {

		// ( namespace ) or ( selector, types [, fn] )
		return arguments.length === 1 ?
			this.off( selector, "**" ) :
			this.off( types, selector || "**", fn );
	},

	hover: function( fnOver, fnOut ) {
		return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
	}
} );

jQuery.each(
	( "blur focus focusin focusout resize scroll click dblclick " +
	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
	"change select submit keydown keypress keyup contextmenu" ).split( " " ),
	function( _i, name ) {

		// Handle event binding
		jQuery.fn[ name ] = function( data, fn ) {
			return arguments.length > 0 ?
				this.on( name, null, data, fn ) :
				this.trigger( name );
		};
	}
);




// Support: Android <=4.0 only
// Make sure we trim BOM and NBSP
var rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g;

// Bind a function to a context, optionally partially applying any
// arguments.
// jQuery.proxy is deprecated to promote standards (specifically Function#bind)
// However, it is not slated for removal any time soon
jQuery.proxy = function( fn, context ) {
	var tmp, args, proxy;

	if ( typeof context === "string" ) {
		tmp = fn[ context ];
		context = fn;
		fn = tmp;
	}

	// Quick check to determine if target is callable, in the spec
	// this throws a TypeError, but we will just return undefined.
	if ( !isFunction( fn ) ) {
		return undefined;
	}

	// Simulated bind
	args = slice.call( arguments, 2 );
	proxy = function() {
		return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
	};

	// Set the guid of unique handler to the same of original handler, so it can be removed
	proxy.guid = fn.guid = fn.guid || jQuery.guid++;

	return proxy;
};

jQuery.holdReady = function( hold ) {
	if ( hold ) {
		jQuery.readyWait++;
	} else {
		jQuery.ready( true );
	}
};
jQuery.isArray = Array.isArray;
jQuery.parseJSON = JSON.parse;
jQuery.nodeName = nodeName;
jQuery.isFunction = isFunction;
jQuery.isWindow = isWindow;
jQuery.camelCase = camelCase;
jQuery.type = toType;

jQuery.now = Date.now;

jQuery.isNumeric = function( obj ) {

	// As of jQuery 3.0, isNumeric is limited to
	// strings and numbers (primitives or objects)
	// that can be coerced to finite numbers (gh-2662)
	var type = jQuery.type( obj );
	return ( type === "number" || type === "string" ) &&

		// parseFloat NaNs numeric-cast false positives ("")
		// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
		// subtraction forces infinities to NaN
		!isNaN( obj - parseFloat( obj ) );
};

jQuery.trim = function( text ) {
	return text == null ?
		"" :
		( text + "" ).replace( rtrim, "" );
};



// Register as a named AMD module, since jQuery can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase jquery is used because AMD module names are
// derived from file names, and jQuery is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of jQuery, it will work.

// Note that for maximum portability, libraries that are not jQuery should
// declare themselves as anonymous modules, and avoid setting a global if an
// AMD loader is present. jQuery is a special case. For more information, see
// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon

if ( true ) {
	!(__WEBPACK_AMD_DEFINE_ARRAY__ = [], __WEBPACK_AMD_DEFINE_RESULT__ = (function() {
		return jQuery;
	}).apply(exports, __WEBPACK_AMD_DEFINE_ARRAY__),
		__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
}




var

	// Map over jQuery in case of overwrite
	_jQuery = window.jQuery,

	// Map over the $ in case of overwrite
	_$ = window.$;

jQuery.noConflict = function( deep ) {
	if ( window.$ === jQuery ) {
		window.$ = _$;
	}

	if ( deep && window.jQuery === jQuery ) {
		window.jQuery = _jQuery;
	}

	return jQuery;
};

// Expose jQuery and $ identifiers, even in AMD
// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
// and CommonJS for browser emulators (#13566)
if ( typeof noGlobal === "undefined" ) {
	window.jQuery = window.$ = jQuery;
}




return jQuery;
} );


/***/ }),

/***/ "./node_modules/lodash/lodash.js":
/*!***************************************!*\
  !*** ./node_modules/lodash/lodash.js ***!
  \***************************************/
/***/ (function(module, exports, __webpack_require__) {

/* module decorator */ module = __webpack_require__.nmd(module);
var __WEBPACK_AMD_DEFINE_RESULT__;/**
 * @license
 * Lodash <https://lodash.com/>
 * Copyright OpenJS Foundation and other contributors <https://openjsf.org/>
 * Released under MIT license <https://lodash.com/license>
 * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
 * Copyright Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
 */
;(function() {

  /** Used as a safe reference for `undefined` in pre-ES5 environments. */
  var undefined;

  /** Used as the semantic version number. */
  var VERSION = '4.17.21';

  /** Used as the size to enable large array optimizations. */
  var LARGE_ARRAY_SIZE = 200;

  /** Error message constants. */
  var CORE_ERROR_TEXT = 'Unsupported core-js use. Try https://npms.io/search?q=ponyfill.',
      FUNC_ERROR_TEXT = 'Expected a function',
      INVALID_TEMPL_VAR_ERROR_TEXT = 'Invalid `variable` option passed into `_.template`';

  /** Used to stand-in for `undefined` hash values. */
  var HASH_UNDEFINED = '__lodash_hash_undefined__';

  /** Used as the maximum memoize cache size. */
  var MAX_MEMOIZE_SIZE = 500;

  /** Used as the internal argument placeholder. */
  var PLACEHOLDER = '__lodash_placeholder__';

  /** Used to compose bitmasks for cloning. */
  var CLONE_DEEP_FLAG = 1,
      CLONE_FLAT_FLAG = 2,
      CLONE_SYMBOLS_FLAG = 4;

  /** Used to compose bitmasks for value comparisons. */
  var COMPARE_PARTIAL_FLAG = 1,
      COMPARE_UNORDERED_FLAG = 2;

  /** Used to compose bitmasks for function metadata. */
  var WRAP_BIND_FLAG = 1,
      WRAP_BIND_KEY_FLAG = 2,
      WRAP_CURRY_BOUND_FLAG = 4,
      WRAP_CURRY_FLAG = 8,
      WRAP_CURRY_RIGHT_FLAG = 16,
      WRAP_PARTIAL_FLAG = 32,
      WRAP_PARTIAL_RIGHT_FLAG = 64,
      WRAP_ARY_FLAG = 128,
      WRAP_REARG_FLAG = 256,
      WRAP_FLIP_FLAG = 512;

  /** Used as default options for `_.truncate`. */
  var DEFAULT_TRUNC_LENGTH = 30,
      DEFAULT_TRUNC_OMISSION = '...';

  /** Used to detect hot functions by number of calls within a span of milliseconds. */
  var HOT_COUNT = 800,
      HOT_SPAN = 16;

  /** Used to indicate the type of lazy iteratees. */
  var LAZY_FILTER_FLAG = 1,
      LAZY_MAP_FLAG = 2,
      LAZY_WHILE_FLAG = 3;

  /** Used as references for various `Number` constants. */
  var INFINITY = 1 / 0,
      MAX_SAFE_INTEGER = 9007199254740991,
      MAX_INTEGER = 1.7976931348623157e+308,
      NAN = 0 / 0;

  /** Used as references for the maximum length and index of an array. */
  var MAX_ARRAY_LENGTH = 4294967295,
      MAX_ARRAY_INDEX = MAX_ARRAY_LENGTH - 1,
      HALF_MAX_ARRAY_LENGTH = MAX_ARRAY_LENGTH >>> 1;

  /** Used to associate wrap methods with their bit flags. */
  var wrapFlags = [
    ['ary', WRAP_ARY_FLAG],
    ['bind', WRAP_BIND_FLAG],
    ['bindKey', WRAP_BIND_KEY_FLAG],
    ['curry', WRAP_CURRY_FLAG],
    ['curryRight', WRAP_CURRY_RIGHT_FLAG],
    ['flip', WRAP_FLIP_FLAG],
    ['partial', WRAP_PARTIAL_FLAG],
    ['partialRight', WRAP_PARTIAL_RIGHT_FLAG],
    ['rearg', WRAP_REARG_FLAG]
  ];

  /** `Object#toString` result references. */
  var argsTag = '[object Arguments]',
      arrayTag = '[object Array]',
      asyncTag = '[object AsyncFunction]',
      boolTag = '[object Boolean]',
      dateTag = '[object Date]',
      domExcTag = '[object DOMException]',
      errorTag = '[object Error]',
      funcTag = '[object Function]',
      genTag = '[object GeneratorFunction]',
      mapTag = '[object Map]',
      numberTag = '[object Number]',
      nullTag = '[object Null]',
      objectTag = '[object Object]',
      promiseTag = '[object Promise]',
      proxyTag = '[object Proxy]',
      regexpTag = '[object RegExp]',
      setTag = '[object Set]',
      stringTag = '[object String]',
      symbolTag = '[object Symbol]',
      undefinedTag = '[object Undefined]',
      weakMapTag = '[object WeakMap]',
      weakSetTag = '[object WeakSet]';

  var arrayBufferTag = '[object ArrayBuffer]',
      dataViewTag = '[object DataView]',
      float32Tag = '[object Float32Array]',
      float64Tag = '[object Float64Array]',
      int8Tag = '[object Int8Array]',
      int16Tag = '[object Int16Array]',
      int32Tag = '[object Int32Array]',
      uint8Tag = '[object Uint8Array]',
      uint8ClampedTag = '[object Uint8ClampedArray]',
      uint16Tag = '[object Uint16Array]',
      uint32Tag = '[object Uint32Array]';

  /** Used to match empty string literals in compiled template source. */
  var reEmptyStringLeading = /\b__p \+= '';/g,
      reEmptyStringMiddle = /\b(__p \+=) '' \+/g,
      reEmptyStringTrailing = /(__e\(.*?\)|\b__t\)) \+\n'';/g;

  /** Used to match HTML entities and HTML characters. */
  var reEscapedHtml = /&(?:amp|lt|gt|quot|#39);/g,
      reUnescapedHtml = /[&<>"']/g,
      reHasEscapedHtml = RegExp(reEscapedHtml.source),
      reHasUnescapedHtml = RegExp(reUnescapedHtml.source);

  /** Used to match template delimiters. */
  var reEscape = /<%-([\s\S]+?)%>/g,
      reEvaluate = /<%([\s\S]+?)%>/g,
      reInterpolate = /<%=([\s\S]+?)%>/g;

  /** Used to match property names within property paths. */
  var reIsDeepProp = /\.|\[(?:[^[\]]*|(["'])(?:(?!\1)[^\\]|\\.)*?\1)\]/,
      reIsPlainProp = /^\w*$/,
      rePropName = /[^.[\]]+|\[(?:(-?\d+(?:\.\d+)?)|(["'])((?:(?!\2)[^\\]|\\.)*?)\2)\]|(?=(?:\.|\[\])(?:\.|\[\]|$))/g;

  /**
   * Used to match `RegExp`
   * [syntax characters](http://ecma-international.org/ecma-262/7.0/#sec-patterns).
   */
  var reRegExpChar = /[\\^$.*+?()[\]{}|]/g,
      reHasRegExpChar = RegExp(reRegExpChar.source);

  /** Used to match leading whitespace. */
  var reTrimStart = /^\s+/;

  /** Used to match a single whitespace character. */
  var reWhitespace = /\s/;

  /** Used to match wrap detail comments. */
  var reWrapComment = /\{(?:\n\/\* \[wrapped with .+\] \*\/)?\n?/,
      reWrapDetails = /\{\n\/\* \[wrapped with (.+)\] \*/,
      reSplitDetails = /,? & /;

  /** Used to match words composed of alphanumeric characters. */
  var reAsciiWord = /[^\x00-\x2f\x3a-\x40\x5b-\x60\x7b-\x7f]+/g;

  /**
   * Used to validate the `validate` option in `_.template` variable.
   *
   * Forbids characters which could potentially change the meaning of the function argument definition:
   * - "()," (modification of function parameters)
   * - "=" (default value)
   * - "[]{}" (destructuring of function parameters)
   * - "/" (beginning of a comment)
   * - whitespace
   */
  var reForbiddenIdentifierChars = /[()=,{}\[\]\/\s]/;

  /** Used to match backslashes in property paths. */
  var reEscapeChar = /\\(\\)?/g;

  /**
   * Used to match
   * [ES template delimiters](http://ecma-international.org/ecma-262/7.0/#sec-template-literal-lexical-components).
   */
  var reEsTemplate = /\$\{([^\\}]*(?:\\.[^\\}]*)*)\}/g;

  /** Used to match `RegExp` flags from their coerced string values. */
  var reFlags = /\w*$/;

  /** Used to detect bad signed hexadecimal string values. */
  var reIsBadHex = /^[-+]0x[0-9a-f]+$/i;

  /** Used to detect binary string values. */
  var reIsBinary = /^0b[01]+$/i;

  /** Used to detect host constructors (Safari). */
  var reIsHostCtor = /^\[object .+?Constructor\]$/;

  /** Used to detect octal string values. */
  var reIsOctal = /^0o[0-7]+$/i;

  /** Used to detect unsigned integer values. */
  var reIsUint = /^(?:0|[1-9]\d*)$/;

  /** Used to match Latin Unicode letters (excluding mathematical operators). */
  var reLatin = /[\xc0-\xd6\xd8-\xf6\xf8-\xff\u0100-\u017f]/g;

  /** Used to ensure capturing order of template delimiters. */
  var reNoMatch = /($^)/;

  /** Used to match unescaped characters in compiled string literals. */
  var reUnescapedString = /['\n\r\u2028\u2029\\]/g;

  /** Used to compose unicode character classes. */
  var rsAstralRange = '\\ud800-\\udfff',
      rsComboMarksRange = '\\u0300-\\u036f',
      reComboHalfMarksRange = '\\ufe20-\\ufe2f',
      rsComboSymbolsRange = '\\u20d0-\\u20ff',
      rsComboRange = rsComboMarksRange + reComboHalfMarksRange + rsComboSymbolsRange,
      rsDingbatRange = '\\u2700-\\u27bf',
      rsLowerRange = 'a-z\\xdf-\\xf6\\xf8-\\xff',
      rsMathOpRange = '\\xac\\xb1\\xd7\\xf7',
      rsNonCharRange = '\\x00-\\x2f\\x3a-\\x40\\x5b-\\x60\\x7b-\\xbf',
      rsPunctuationRange = '\\u2000-\\u206f',
      rsSpaceRange = ' \\t\\x0b\\f\\xa0\\ufeff\\n\\r\\u2028\\u2029\\u1680\\u180e\\u2000\\u2001\\u2002\\u2003\\u2004\\u2005\\u2006\\u2007\\u2008\\u2009\\u200a\\u202f\\u205f\\u3000',
      rsUpperRange = 'A-Z\\xc0-\\xd6\\xd8-\\xde',
      rsVarRange = '\\ufe0e\\ufe0f',
      rsBreakRange = rsMathOpRange + rsNonCharRange + rsPunctuationRange + rsSpaceRange;

  /** Used to compose unicode capture groups. */
  var rsApos = "['\u2019]",
      rsAstral = '[' + rsAstralRange + ']',
      rsBreak = '[' + rsBreakRange + ']',
      rsCombo = '[' + rsComboRange + ']',
      rsDigits = '\\d+',
      rsDingbat = '[' + rsDingbatRange + ']',
      rsLower = '[' + rsLowerRange + ']',
      rsMisc = '[^' + rsAstralRange + rsBreakRange + rsDigits + rsDingbatRange + rsLowerRange + rsUpperRange + ']',
      rsFitz = '\\ud83c[\\udffb-\\udfff]',
      rsModifier = '(?:' + rsCombo + '|' + rsFitz + ')',
      rsNonAstral = '[^' + rsAstralRange + ']',
      rsRegional = '(?:\\ud83c[\\udde6-\\uddff]){2}',
      rsSurrPair = '[\\ud800-\\udbff][\\udc00-\\udfff]',
      rsUpper = '[' + rsUpperRange + ']',
      rsZWJ = '\\u200d';

  /** Used to compose unicode regexes. */
  var rsMiscLower = '(?:' + rsLower + '|' + rsMisc + ')',
      rsMiscUpper = '(?:' + rsUpper + '|' + rsMisc + ')',
      rsOptContrLower = '(?:' + rsApos + '(?:d|ll|m|re|s|t|ve))?',
      rsOptContrUpper = '(?:' + rsApos + '(?:D|LL|M|RE|S|T|VE))?',
      reOptMod = rsModifier + '?',
      rsOptVar = '[' + rsVarRange + ']?',
      rsOptJoin = '(?:' + rsZWJ + '(?:' + [rsNonAstral, rsRegional, rsSurrPair].join('|') + ')' + rsOptVar + reOptMod + ')*',
      rsOrdLower = '\\d*(?:1st|2nd|3rd|(?![123])\\dth)(?=\\b|[A-Z_])',
      rsOrdUpper = '\\d*(?:1ST|2ND|3RD|(?![123])\\dTH)(?=\\b|[a-z_])',
      rsSeq = rsOptVar + reOptMod + rsOptJoin,
      rsEmoji = '(?:' + [rsDingbat, rsRegional, rsSurrPair].join('|') + ')' + rsSeq,
      rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';

  /** Used to match apostrophes. */
  var reApos = RegExp(rsApos, 'g');

  /**
   * Used to match [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks) and
   * [combining diacritical marks for symbols](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks_for_Symbols).
   */
  var reComboMark = RegExp(rsCombo, 'g');

  /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
  var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');

  /** Used to match complex or compound words. */
  var reUnicodeWord = RegExp([
    rsUpper + '?' + rsLower + '+' + rsOptContrLower + '(?=' + [rsBreak, rsUpper, '$'].join('|') + ')',
    rsMiscUpper + '+' + rsOptContrUpper + '(?=' + [rsBreak, rsUpper + rsMiscLower, '$'].join('|') + ')',
    rsUpper + '?' + rsMiscLower + '+' + rsOptContrLower,
    rsUpper + '+' + rsOptContrUpper,
    rsOrdUpper,
    rsOrdLower,
    rsDigits,
    rsEmoji
  ].join('|'), 'g');

  /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
  var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboRange + rsVarRange + ']');

  /** Used to detect strings that need a more robust regexp to match words. */
  var reHasUnicodeWord = /[a-z][A-Z]|[A-Z]{2}[a-z]|[0-9][a-zA-Z]|[a-zA-Z][0-9]|[^a-zA-Z0-9 ]/;

  /** Used to assign default `context` object properties. */
  var contextProps = [
    'Array', 'Buffer', 'DataView', 'Date', 'Error', 'Float32Array', 'Float64Array',
    'Function', 'Int8Array', 'Int16Array', 'Int32Array', 'Map', 'Math', 'Object',
    'Promise', 'RegExp', 'Set', 'String', 'Symbol', 'TypeError', 'Uint8Array',
    'Uint8ClampedArray', 'Uint16Array', 'Uint32Array', 'WeakMap',
    '_', 'clearTimeout', 'isFinite', 'parseInt', 'setTimeout'
  ];

  /** Used to make template sourceURLs easier to identify. */
  var templateCounter = -1;

  /** Used to identify `toStringTag` values of typed arrays. */
  var typedArrayTags = {};
  typedArrayTags[float32Tag] = typedArrayTags[float64Tag] =
  typedArrayTags[int8Tag] = typedArrayTags[int16Tag] =
  typedArrayTags[int32Tag] = typedArrayTags[uint8Tag] =
  typedArrayTags[uint8ClampedTag] = typedArrayTags[uint16Tag] =
  typedArrayTags[uint32Tag] = true;
  typedArrayTags[argsTag] = typedArrayTags[arrayTag] =
  typedArrayTags[arrayBufferTag] = typedArrayTags[boolTag] =
  typedArrayTags[dataViewTag] = typedArrayTags[dateTag] =
  typedArrayTags[errorTag] = typedArrayTags[funcTag] =
  typedArrayTags[mapTag] = typedArrayTags[numberTag] =
  typedArrayTags[objectTag] = typedArrayTags[regexpTag] =
  typedArrayTags[setTag] = typedArrayTags[stringTag] =
  typedArrayTags[weakMapTag] = false;

  /** Used to identify `toStringTag` values supported by `_.clone`. */
  var cloneableTags = {};
  cloneableTags[argsTag] = cloneableTags[arrayTag] =
  cloneableTags[arrayBufferTag] = cloneableTags[dataViewTag] =
  cloneableTags[boolTag] = cloneableTags[dateTag] =
  cloneableTags[float32Tag] = cloneableTags[float64Tag] =
  cloneableTags[int8Tag] = cloneableTags[int16Tag] =
  cloneableTags[int32Tag] = cloneableTags[mapTag] =
  cloneableTags[numberTag] = cloneableTags[objectTag] =
  cloneableTags[regexpTag] = cloneableTags[setTag] =
  cloneableTags[stringTag] = cloneableTags[symbolTag] =
  cloneableTags[uint8Tag] = cloneableTags[uint8ClampedTag] =
  cloneableTags[uint16Tag] = cloneableTags[uint32Tag] = true;
  cloneableTags[errorTag] = cloneableTags[funcTag] =
  cloneableTags[weakMapTag] = false;

  /** Used to map Latin Unicode letters to basic Latin letters. */
  var deburredLetters = {
    // Latin-1 Supplement block.
    '\xc0': 'A',  '\xc1': 'A', '\xc2': 'A', '\xc3': 'A', '\xc4': 'A', '\xc5': 'A',
    '\xe0': 'a',  '\xe1': 'a', '\xe2': 'a', '\xe3': 'a', '\xe4': 'a', '\xe5': 'a',
    '\xc7': 'C',  '\xe7': 'c',
    '\xd0': 'D',  '\xf0': 'd',
    '\xc8': 'E',  '\xc9': 'E', '\xca': 'E', '\xcb': 'E',
    '\xe8': 'e',  '\xe9': 'e', '\xea': 'e', '\xeb': 'e',
    '\xcc': 'I',  '\xcd': 'I', '\xce': 'I', '\xcf': 'I',
    '\xec': 'i',  '\xed': 'i', '\xee': 'i', '\xef': 'i',
    '\xd1': 'N',  '\xf1': 'n',
    '\xd2': 'O',  '\xd3': 'O', '\xd4': 'O', '\xd5': 'O', '\xd6': 'O', '\xd8': 'O',
    '\xf2': 'o',  '\xf3': 'o', '\xf4': 'o', '\xf5': 'o', '\xf6': 'o', '\xf8': 'o',
    '\xd9': 'U',  '\xda': 'U', '\xdb': 'U', '\xdc': 'U',
    '\xf9': 'u',  '\xfa': 'u', '\xfb': 'u', '\xfc': 'u',
    '\xdd': 'Y',  '\xfd': 'y', '\xff': 'y',
    '\xc6': 'Ae', '\xe6': 'ae',
    '\xde': 'Th', '\xfe': 'th',
    '\xdf': 'ss',
    // Latin Extended-A block.
    '\u0100': 'A',  '\u0102': 'A', '\u0104': 'A',
    '\u0101': 'a',  '\u0103': 'a', '\u0105': 'a',
    '\u0106': 'C',  '\u0108': 'C', '\u010a': 'C', '\u010c': 'C',
    '\u0107': 'c',  '\u0109': 'c', '\u010b': 'c', '\u010d': 'c',
    '\u010e': 'D',  '\u0110': 'D', '\u010f': 'd', '\u0111': 'd',
    '\u0112': 'E',  '\u0114': 'E', '\u0116': 'E', '\u0118': 'E', '\u011a': 'E',
    '\u0113': 'e',  '\u0115': 'e', '\u0117': 'e', '\u0119': 'e', '\u011b': 'e',
    '\u011c': 'G',  '\u011e': 'G', '\u0120': 'G', '\u0122': 'G',
    '\u011d': 'g',  '\u011f': 'g', '\u0121': 'g', '\u0123': 'g',
    '\u0124': 'H',  '\u0126': 'H', '\u0125': 'h', '\u0127': 'h',
    '\u0128': 'I',  '\u012a': 'I', '\u012c': 'I', '\u012e': 'I', '\u0130': 'I',
    '\u0129': 'i',  '\u012b': 'i', '\u012d': 'i', '\u012f': 'i', '\u0131': 'i',
    '\u0134': 'J',  '\u0135': 'j',
    '\u0136': 'K',  '\u0137': 'k', '\u0138': 'k',
    '\u0139': 'L',  '\u013b': 'L', '\u013d': 'L', '\u013f': 'L', '\u0141': 'L',
    '\u013a': 'l',  '\u013c': 'l', '\u013e': 'l', '\u0140': 'l', '\u0142': 'l',
    '\u0143': 'N',  '\u0145': 'N', '\u0147': 'N', '\u014a': 'N',
    '\u0144': 'n',  '\u0146': 'n', '\u0148': 'n', '\u014b': 'n',
    '\u014c': 'O',  '\u014e': 'O', '\u0150': 'O',
    '\u014d': 'o',  '\u014f': 'o', '\u0151': 'o',
    '\u0154': 'R',  '\u0156': 'R', '\u0158': 'R',
    '\u0155': 'r',  '\u0157': 'r', '\u0159': 'r',
    '\u015a': 'S',  '\u015c': 'S', '\u015e': 'S', '\u0160': 'S',
    '\u015b': 's',  '\u015d': 's', '\u015f': 's', '\u0161': 's',
    '\u0162': 'T',  '\u0164': 'T', '\u0166': 'T',
    '\u0163': 't',  '\u0165': 't', '\u0167': 't',
    '\u0168': 'U',  '\u016a': 'U', '\u016c': 'U', '\u016e': 'U', '\u0170': 'U', '\u0172': 'U',
    '\u0169': 'u',  '\u016b': 'u', '\u016d': 'u', '\u016f': 'u', '\u0171': 'u', '\u0173': 'u',
    '\u0174': 'W',  '\u0175': 'w',
    '\u0176': 'Y',  '\u0177': 'y', '\u0178': 'Y',
    '\u0179': 'Z',  '\u017b': 'Z', '\u017d': 'Z',
    '\u017a': 'z',  '\u017c': 'z', '\u017e': 'z',
    '\u0132': 'IJ', '\u0133': 'ij',
    '\u0152': 'Oe', '\u0153': 'oe',
    '\u0149': "'n", '\u017f': 's'
  };

  /** Used to map characters to HTML entities. */
  var htmlEscapes = {
    '&': '&amp;',
    '<': '&lt;',
    '>': '&gt;',
    '"': '&quot;',
    "'": '&#39;'
  };

  /** Used to map HTML entities to characters. */
  var htmlUnescapes = {
    '&amp;': '&',
    '&lt;': '<',
    '&gt;': '>',
    '&quot;': '"',
    '&#39;': "'"
  };

  /** Used to escape characters for inclusion in compiled string literals. */
  var stringEscapes = {
    '\\': '\\',
    "'": "'",
    '\n': 'n',
    '\r': 'r',
    '\u2028': 'u2028',
    '\u2029': 'u2029'
  };

  /** Built-in method references without a dependency on `root`. */
  var freeParseFloat = parseFloat,
      freeParseInt = parseInt;

  /** Detect free variable `global` from Node.js. */
  var freeGlobal = typeof __webpack_require__.g == 'object' && __webpack_require__.g && __webpack_require__.g.Object === Object && __webpack_require__.g;

  /** Detect free variable `self`. */
  var freeSelf = typeof self == 'object' && self && self.Object === Object && self;

  /** Used as a reference to the global object. */
  var root = freeGlobal || freeSelf || Function('return this')();

  /** Detect free variable `exports`. */
  var freeExports =  true && exports && !exports.nodeType && exports;

  /** Detect free variable `module`. */
  var freeModule = freeExports && "object" == 'object' && module && !module.nodeType && module;

  /** Detect the popular CommonJS extension `module.exports`. */
  var moduleExports = freeModule && freeModule.exports === freeExports;

  /** Detect free variable `process` from Node.js. */
  var freeProcess = moduleExports && freeGlobal.process;

  /** Used to access faster Node.js helpers. */
  var nodeUtil = (function() {
    try {
      // Use `util.types` for Node.js 10+.
      var types = freeModule && freeModule.require && freeModule.require('util').types;

      if (types) {
        return types;
      }

      // Legacy `process.binding('util')` for Node.js < 10.
      return freeProcess && freeProcess.binding && freeProcess.binding('util');
    } catch (e) {}
  }());

  /* Node.js helper references. */
  var nodeIsArrayBuffer = nodeUtil && nodeUtil.isArrayBuffer,
      nodeIsDate = nodeUtil && nodeUtil.isDate,
      nodeIsMap = nodeUtil && nodeUtil.isMap,
      nodeIsRegExp = nodeUtil && nodeUtil.isRegExp,
      nodeIsSet = nodeUtil && nodeUtil.isSet,
      nodeIsTypedArray = nodeUtil && nodeUtil.isTypedArray;

  /*--------------------------------------------------------------------------*/

  /**
   * A faster alternative to `Function#apply`, this function invokes `func`
   * with the `this` binding of `thisArg` and the arguments of `args`.
   *
   * @private
   * @param {Function} func The function to invoke.
   * @param {*} thisArg The `this` binding of `func`.
   * @param {Array} args The arguments to invoke `func` with.
   * @returns {*} Returns the result of `func`.
   */
  function apply(func, thisArg, args) {
    switch (args.length) {
      case 0: return func.call(thisArg);
      case 1: return func.call(thisArg, args[0]);
      case 2: return func.call(thisArg, args[0], args[1]);
      case 3: return func.call(thisArg, args[0], args[1], args[2]);
    }
    return func.apply(thisArg, args);
  }

  /**
   * A specialized version of `baseAggregator` for arrays.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} setter The function to set `accumulator` values.
   * @param {Function} iteratee The iteratee to transform keys.
   * @param {Object} accumulator The initial aggregated object.
   * @returns {Function} Returns `accumulator`.
   */
  function arrayAggregator(array, setter, iteratee, accumulator) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      var value = array[index];
      setter(accumulator, value, iteratee(value), array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.forEach` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns `array`.
   */
  function arrayEach(array, iteratee) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (iteratee(array[index], index, array) === false) {
        break;
      }
    }
    return array;
  }

  /**
   * A specialized version of `_.forEachRight` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns `array`.
   */
  function arrayEachRight(array, iteratee) {
    var length = array == null ? 0 : array.length;

    while (length--) {
      if (iteratee(array[length], length, array) === false) {
        break;
      }
    }
    return array;
  }

  /**
   * A specialized version of `_.every` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {boolean} Returns `true` if all elements pass the predicate check,
   *  else `false`.
   */
  function arrayEvery(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (!predicate(array[index], index, array)) {
        return false;
      }
    }
    return true;
  }

  /**
   * A specialized version of `_.filter` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {Array} Returns the new filtered array.
   */
  function arrayFilter(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length,
        resIndex = 0,
        result = [];

    while (++index < length) {
      var value = array[index];
      if (predicate(value, index, array)) {
        result[resIndex++] = value;
      }
    }
    return result;
  }

  /**
   * A specialized version of `_.includes` for arrays without support for
   * specifying an index to search from.
   *
   * @private
   * @param {Array} [array] The array to inspect.
   * @param {*} target The value to search for.
   * @returns {boolean} Returns `true` if `target` is found, else `false`.
   */
  function arrayIncludes(array, value) {
    var length = array == null ? 0 : array.length;
    return !!length && baseIndexOf(array, value, 0) > -1;
  }

  /**
   * This function is like `arrayIncludes` except that it accepts a comparator.
   *
   * @private
   * @param {Array} [array] The array to inspect.
   * @param {*} target The value to search for.
   * @param {Function} comparator The comparator invoked per element.
   * @returns {boolean} Returns `true` if `target` is found, else `false`.
   */
  function arrayIncludesWith(array, value, comparator) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (comparator(value, array[index])) {
        return true;
      }
    }
    return false;
  }

  /**
   * A specialized version of `_.map` for arrays without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the new mapped array.
   */
  function arrayMap(array, iteratee) {
    var index = -1,
        length = array == null ? 0 : array.length,
        result = Array(length);

    while (++index < length) {
      result[index] = iteratee(array[index], index, array);
    }
    return result;
  }

  /**
   * Appends the elements of `values` to `array`.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {Array} values The values to append.
   * @returns {Array} Returns `array`.
   */
  function arrayPush(array, values) {
    var index = -1,
        length = values.length,
        offset = array.length;

    while (++index < length) {
      array[offset + index] = values[index];
    }
    return array;
  }

  /**
   * A specialized version of `_.reduce` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} [accumulator] The initial value.
   * @param {boolean} [initAccum] Specify using the first element of `array` as
   *  the initial value.
   * @returns {*} Returns the accumulated value.
   */
  function arrayReduce(array, iteratee, accumulator, initAccum) {
    var index = -1,
        length = array == null ? 0 : array.length;

    if (initAccum && length) {
      accumulator = array[++index];
    }
    while (++index < length) {
      accumulator = iteratee(accumulator, array[index], index, array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.reduceRight` for arrays without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} [accumulator] The initial value.
   * @param {boolean} [initAccum] Specify using the last element of `array` as
   *  the initial value.
   * @returns {*} Returns the accumulated value.
   */
  function arrayReduceRight(array, iteratee, accumulator, initAccum) {
    var length = array == null ? 0 : array.length;
    if (initAccum && length) {
      accumulator = array[--length];
    }
    while (length--) {
      accumulator = iteratee(accumulator, array[length], length, array);
    }
    return accumulator;
  }

  /**
   * A specialized version of `_.some` for arrays without support for iteratee
   * shorthands.
   *
   * @private
   * @param {Array} [array] The array to iterate over.
   * @param {Function} predicate The function invoked per iteration.
   * @returns {boolean} Returns `true` if any element passes the predicate check,
   *  else `false`.
   */
  function arraySome(array, predicate) {
    var index = -1,
        length = array == null ? 0 : array.length;

    while (++index < length) {
      if (predicate(array[index], index, array)) {
        return true;
      }
    }
    return false;
  }

  /**
   * Gets the size of an ASCII `string`.
   *
   * @private
   * @param {string} string The string inspect.
   * @returns {number} Returns the string size.
   */
  var asciiSize = baseProperty('length');

  /**
   * Converts an ASCII `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function asciiToArray(string) {
    return string.split('');
  }

  /**
   * Splits an ASCII `string` into an array of its words.
   *
   * @private
   * @param {string} The string to inspect.
   * @returns {Array} Returns the words of `string`.
   */
  function asciiWords(string) {
    return string.match(reAsciiWord) || [];
  }

  /**
   * The base implementation of methods like `_.findKey` and `_.findLastKey`,
   * without support for iteratee shorthands, which iterates over `collection`
   * using `eachFunc`.
   *
   * @private
   * @param {Array|Object} collection The collection to inspect.
   * @param {Function} predicate The function invoked per iteration.
   * @param {Function} eachFunc The function to iterate over `collection`.
   * @returns {*} Returns the found element or its key, else `undefined`.
   */
  function baseFindKey(collection, predicate, eachFunc) {
    var result;
    eachFunc(collection, function(value, key, collection) {
      if (predicate(value, key, collection)) {
        result = key;
        return false;
      }
    });
    return result;
  }

  /**
   * The base implementation of `_.findIndex` and `_.findLastIndex` without
   * support for iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {Function} predicate The function invoked per iteration.
   * @param {number} fromIndex The index to search from.
   * @param {boolean} [fromRight] Specify iterating from right to left.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseFindIndex(array, predicate, fromIndex, fromRight) {
    var length = array.length,
        index = fromIndex + (fromRight ? 1 : -1);

    while ((fromRight ? index-- : ++index < length)) {
      if (predicate(array[index], index, array)) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.indexOf` without `fromIndex` bounds checks.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOf(array, value, fromIndex) {
    return value === value
      ? strictIndexOf(array, value, fromIndex)
      : baseFindIndex(array, baseIsNaN, fromIndex);
  }

  /**
   * This function is like `baseIndexOf` except that it accepts a comparator.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @param {Function} comparator The comparator invoked per element.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function baseIndexOfWith(array, value, fromIndex, comparator) {
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (comparator(array[index], value)) {
        return index;
      }
    }
    return -1;
  }

  /**
   * The base implementation of `_.isNaN` without support for number objects.
   *
   * @private
   * @param {*} value The value to check.
   * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
   */
  function baseIsNaN(value) {
    return value !== value;
  }

  /**
   * The base implementation of `_.mean` and `_.meanBy` without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {number} Returns the mean.
   */
  function baseMean(array, iteratee) {
    var length = array == null ? 0 : array.length;
    return length ? (baseSum(array, iteratee) / length) : NAN;
  }

  /**
   * The base implementation of `_.property` without support for deep paths.
   *
   * @private
   * @param {string} key The key of the property to get.
   * @returns {Function} Returns the new accessor function.
   */
  function baseProperty(key) {
    return function(object) {
      return object == null ? undefined : object[key];
    };
  }

  /**
   * The base implementation of `_.propertyOf` without support for deep paths.
   *
   * @private
   * @param {Object} object The object to query.
   * @returns {Function} Returns the new accessor function.
   */
  function basePropertyOf(object) {
    return function(key) {
      return object == null ? undefined : object[key];
    };
  }

  /**
   * The base implementation of `_.reduce` and `_.reduceRight`, without support
   * for iteratee shorthands, which iterates over `collection` using `eachFunc`.
   *
   * @private
   * @param {Array|Object} collection The collection to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @param {*} accumulator The initial value.
   * @param {boolean} initAccum Specify using the first or last element of
   *  `collection` as the initial value.
   * @param {Function} eachFunc The function to iterate over `collection`.
   * @returns {*} Returns the accumulated value.
   */
  function baseReduce(collection, iteratee, accumulator, initAccum, eachFunc) {
    eachFunc(collection, function(value, index, collection) {
      accumulator = initAccum
        ? (initAccum = false, value)
        : iteratee(accumulator, value, index, collection);
    });
    return accumulator;
  }

  /**
   * The base implementation of `_.sortBy` which uses `comparer` to define the
   * sort order of `array` and replaces criteria objects with their corresponding
   * values.
   *
   * @private
   * @param {Array} array The array to sort.
   * @param {Function} comparer The function to define sort order.
   * @returns {Array} Returns `array`.
   */
  function baseSortBy(array, comparer) {
    var length = array.length;

    array.sort(comparer);
    while (length--) {
      array[length] = array[length].value;
    }
    return array;
  }

  /**
   * The base implementation of `_.sum` and `_.sumBy` without support for
   * iteratee shorthands.
   *
   * @private
   * @param {Array} array The array to iterate over.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {number} Returns the sum.
   */
  function baseSum(array, iteratee) {
    var result,
        index = -1,
        length = array.length;

    while (++index < length) {
      var current = iteratee(array[index]);
      if (current !== undefined) {
        result = result === undefined ? current : (result + current);
      }
    }
    return result;
  }

  /**
   * The base implementation of `_.times` without support for iteratee shorthands
   * or max array length checks.
   *
   * @private
   * @param {number} n The number of times to invoke `iteratee`.
   * @param {Function} iteratee The function invoked per iteration.
   * @returns {Array} Returns the array of results.
   */
  function baseTimes(n, iteratee) {
    var index = -1,
        result = Array(n);

    while (++index < n) {
      result[index] = iteratee(index);
    }
    return result;
  }

  /**
   * The base implementation of `_.toPairs` and `_.toPairsIn` which creates an array
   * of key-value pairs for `object` corresponding to the property names of `props`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array} props The property names to get values for.
   * @returns {Object} Returns the key-value pairs.
   */
  function baseToPairs(object, props) {
    return arrayMap(props, function(key) {
      return [key, object[key]];
    });
  }

  /**
   * The base implementation of `_.trim`.
   *
   * @private
   * @param {string} string The string to trim.
   * @returns {string} Returns the trimmed string.
   */
  function baseTrim(string) {
    return string
      ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')
      : string;
  }

  /**
   * The base implementation of `_.unary` without support for storing metadata.
   *
   * @private
   * @param {Function} func The function to cap arguments for.
   * @returns {Function} Returns the new capped function.
   */
  function baseUnary(func) {
    return function(value) {
      return func(value);
    };
  }

  /**
   * The base implementation of `_.values` and `_.valuesIn` which creates an
   * array of `object` property values corresponding to the property names
   * of `props`.
   *
   * @private
   * @param {Object} object The object to query.
   * @param {Array} props The property names to get values for.
   * @returns {Object} Returns the array of property values.
   */
  function baseValues(object, props) {
    return arrayMap(props, function(key) {
      return object[key];
    });
  }

  /**
   * Checks if a `cache` value for `key` exists.
   *
   * @private
   * @param {Object} cache The cache to query.
   * @param {string} key The key of the entry to check.
   * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
   */
  function cacheHas(cache, key) {
    return cache.has(key);
  }

  /**
   * Used by `_.trim` and `_.trimStart` to get the index of the first string symbol
   * that is not found in the character symbols.
   *
   * @private
   * @param {Array} strSymbols The string symbols to inspect.
   * @param {Array} chrSymbols The character symbols to find.
   * @returns {number} Returns the index of the first unmatched string symbol.
   */
  function charsStartIndex(strSymbols, chrSymbols) {
    var index = -1,
        length = strSymbols.length;

    while (++index < length && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
    return index;
  }

  /**
   * Used by `_.trim` and `_.trimEnd` to get the index of the last string symbol
   * that is not found in the character symbols.
   *
   * @private
   * @param {Array} strSymbols The string symbols to inspect.
   * @param {Array} chrSymbols The character symbols to find.
   * @returns {number} Returns the index of the last unmatched string symbol.
   */
  function charsEndIndex(strSymbols, chrSymbols) {
    var index = strSymbols.length;

    while (index-- && baseIndexOf(chrSymbols, strSymbols[index], 0) > -1) {}
    return index;
  }

  /**
   * Gets the number of `placeholder` occurrences in `array`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} placeholder The placeholder to search for.
   * @returns {number} Returns the placeholder count.
   */
  function countHolders(array, placeholder) {
    var length = array.length,
        result = 0;

    while (length--) {
      if (array[length] === placeholder) {
        ++result;
      }
    }
    return result;
  }

  /**
   * Used by `_.deburr` to convert Latin-1 Supplement and Latin Extended-A
   * letters to basic Latin letters.
   *
   * @private
   * @param {string} letter The matched letter to deburr.
   * @returns {string} Returns the deburred letter.
   */
  var deburrLetter = basePropertyOf(deburredLetters);

  /**
   * Used by `_.escape` to convert characters to HTML entities.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  var escapeHtmlChar = basePropertyOf(htmlEscapes);

  /**
   * Used by `_.template` to escape characters for inclusion in compiled string literals.
   *
   * @private
   * @param {string} chr The matched character to escape.
   * @returns {string} Returns the escaped character.
   */
  function escapeStringChar(chr) {
    return '\\' + stringEscapes[chr];
  }

  /**
   * Gets the value at `key` of `object`.
   *
   * @private
   * @param {Object} [object] The object to query.
   * @param {string} key The key of the property to get.
   * @returns {*} Returns the property value.
   */
  function getValue(object, key) {
    return object == null ? undefined : object[key];
  }

  /**
   * Checks if `string` contains Unicode symbols.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {boolean} Returns `true` if a symbol is found, else `false`.
   */
  function hasUnicode(string) {
    return reHasUnicode.test(string);
  }

  /**
   * Checks if `string` contains a word composed of Unicode symbols.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {boolean} Returns `true` if a word is found, else `false`.
   */
  function hasUnicodeWord(string) {
    return reHasUnicodeWord.test(string);
  }

  /**
   * Converts `iterator` to an array.
   *
   * @private
   * @param {Object} iterator The iterator to convert.
   * @returns {Array} Returns the converted array.
   */
  function iteratorToArray(iterator) {
    var data,
        result = [];

    while (!(data = iterator.next()).done) {
      result.push(data.value);
    }
    return result;
  }

  /**
   * Converts `map` to its key-value pairs.
   *
   * @private
   * @param {Object} map The map to convert.
   * @returns {Array} Returns the key-value pairs.
   */
  function mapToArray(map) {
    var index = -1,
        result = Array(map.size);

    map.forEach(function(value, key) {
      result[++index] = [key, value];
    });
    return result;
  }

  /**
   * Creates a unary function that invokes `func` with its argument transformed.
   *
   * @private
   * @param {Function} func The function to wrap.
   * @param {Function} transform The argument transform.
   * @returns {Function} Returns the new function.
   */
  function overArg(func, transform) {
    return function(arg) {
      return func(transform(arg));
    };
  }

  /**
   * Replaces all `placeholder` elements in `array` with an internal placeholder
   * and returns an array of their indexes.
   *
   * @private
   * @param {Array} array The array to modify.
   * @param {*} placeholder The placeholder to replace.
   * @returns {Array} Returns the new array of placeholder indexes.
   */
  function replaceHolders(array, placeholder) {
    var index = -1,
        length = array.length,
        resIndex = 0,
        result = [];

    while (++index < length) {
      var value = array[index];
      if (value === placeholder || value === PLACEHOLDER) {
        array[index] = PLACEHOLDER;
        result[resIndex++] = index;
      }
    }
    return result;
  }

  /**
   * Converts `set` to an array of its values.
   *
   * @private
   * @param {Object} set The set to convert.
   * @returns {Array} Returns the values.
   */
  function setToArray(set) {
    var index = -1,
        result = Array(set.size);

    set.forEach(function(value) {
      result[++index] = value;
    });
    return result;
  }

  /**
   * Converts `set` to its value-value pairs.
   *
   * @private
   * @param {Object} set The set to convert.
   * @returns {Array} Returns the value-value pairs.
   */
  function setToPairs(set) {
    var index = -1,
        result = Array(set.size);

    set.forEach(function(value) {
      result[++index] = [value, value];
    });
    return result;
  }

  /**
   * A specialized version of `_.indexOf` which performs strict equality
   * comparisons of values, i.e. `===`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function strictIndexOf(array, value, fromIndex) {
    var index = fromIndex - 1,
        length = array.length;

    while (++index < length) {
      if (array[index] === value) {
        return index;
      }
    }
    return -1;
  }

  /**
   * A specialized version of `_.lastIndexOf` which performs strict equality
   * comparisons of values, i.e. `===`.
   *
   * @private
   * @param {Array} array The array to inspect.
   * @param {*} value The value to search for.
   * @param {number} fromIndex The index to search from.
   * @returns {number} Returns the index of the matched value, else `-1`.
   */
  function strictLastIndexOf(array, value, fromIndex) {
    var index = fromIndex + 1;
    while (index--) {
      if (array[index] === value) {
        return index;
      }
    }
    return index;
  }

  /**
   * Gets the number of symbols in `string`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {number} Returns the string size.
   */
  function stringSize(string) {
    return hasUnicode(string)
      ? unicodeSize(string)
      : asciiSize(string);
  }

  /**
   * Converts `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function stringToArray(string) {
    return hasUnicode(string)
      ? unicodeToArray(string)
      : asciiToArray(string);
  }

  /**
   * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace
   * character of `string`.
   *
   * @private
   * @param {string} string The string to inspect.
   * @returns {number} Returns the index of the last non-whitespace character.
   */
  function trimmedEndIndex(string) {
    var index = string.length;

    while (index-- && reWhitespace.test(string.charAt(index))) {}
    return index;
  }

  /**
   * Used by `_.unescape` to convert HTML entities to characters.
   *
   * @private
   * @param {string} chr The matched character to unescape.
   * @returns {string} Returns the unescaped character.
   */
  var unescapeHtmlChar = basePropertyOf(htmlUnescapes);

  /**
   * Gets the size of a Unicode `string`.
   *
   * @private
   * @param {string} string The string inspect.
   * @returns {number} Returns the string size.
   */
  function unicodeSize(string) {
    var result = reUnicode.lastIndex = 0;
    while (reUnicode.test(string)) {
      ++result;
    }
    return result;
  }

  /**
   * Converts a Unicode `string` to an array.
   *
   * @private
   * @param {string} string The string to convert.
   * @returns {Array} Returns the converted array.
   */
  function unicodeToArray(string) {
    return string.match(reUnicode) || [];
  }

  /**
   * Splits a Unicode `string` into an array of its words.
   *
   * @private
   * @param {string} The string to inspect.
   * @returns {Array} Returns the words of `string`.
   */
  function unicodeWords(string) {
    return string.match(reUnicodeWord) || [];
  }

  /*--------------------------------------------------------------------------*/

  /**
   * Create a new pristine `lodash` function using the `context` object.
   *
   * @static
   * @memberOf _
   * @since 1.1.0
   * @category Util
   * @param {Object} [context=root] The context object.
   * @returns {Function} Returns a new `lodash` function.
   * @example
   *
   * _.mixin({ 'foo': _.constant('foo') });
   *
   * var lodash = _.runInContext();
   * lodash.mixin({ 'bar': lodash.constant('bar') });
   *
   * _.isFunction(_.foo);
   * // => true
   * _.isFunction(_.bar);
   * // => false
   *
   * lodash.isFunction(lodash.foo);
   * // => false
   * lodash.isFunction(lodash.bar);
   * // => true
   *
   * // Create a suped-up `defer` in Node.js.
   * var defer = _.runInContext({ 'setTimeout': setImmediate }).defer;
   */
  var runInContext = (function runInContext(context) {
    context = context == null ? root : _.defaults(root.Object(), context, _.pick(root, contextProps));

    /** Built-in constructor references. */
    var Array = context.Array,
        Date = context.Date,
        Error = context.Error,
        Function = context.Function,
        Math = context.Math,
        Object = context.Object,
        RegExp = context.RegExp,
        String = context.String,
        TypeError = context.TypeError;

    /** Used for built-in method references. */
    var arrayProto = Array.prototype,
        funcProto = Function.prototype,
        objectProto = Object.prototype;

    /** Used to detect overreaching core-js shims. */
    var coreJsData = context['__core-js_shared__'];

    /** Used to resolve the decompiled source of functions. */
    var funcToString = funcProto.toString;

    /** Used to check objects for own properties. */
    var hasOwnProperty = objectProto.hasOwnProperty;

    /** Used to generate unique IDs. */
    var idCounter = 0;

    /** Used to detect methods masquerading as native. */
    var maskSrcKey = (function() {
      var uid = /[^.]+$/.exec(coreJsData && coreJsData.keys && coreJsData.keys.IE_PROTO || '');
      return uid ? ('Symbol(src)_1.' + uid) : '';
    }());

    /**
     * Used to resolve the
     * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
     * of values.
     */
    var nativeObjectToString = objectProto.toString;

    /** Used to infer the `Object` constructor. */
    var objectCtorString = funcToString.call(Object);

    /** Used to restore the original `_` reference in `_.noConflict`. */
    var oldDash = root._;

    /** Used to detect if a method is native. */
    var reIsNative = RegExp('^' +
      funcToString.call(hasOwnProperty).replace(reRegExpChar, '\\$&')
      .replace(/hasOwnProperty|(function).*?(?=\\\()| for .+?(?=\\\])/g, '$1.*?') + '$'
    );

    /** Built-in value references. */
    var Buffer = moduleExports ? context.Buffer : undefined,
        Symbol = context.Symbol,
        Uint8Array = context.Uint8Array,
        allocUnsafe = Buffer ? Buffer.allocUnsafe : undefined,
        getPrototype = overArg(Object.getPrototypeOf, Object),
        objectCreate = Object.create,
        propertyIsEnumerable = objectProto.propertyIsEnumerable,
        splice = arrayProto.splice,
        spreadableSymbol = Symbol ? Symbol.isConcatSpreadable : undefined,
        symIterator = Symbol ? Symbol.iterator : undefined,
        symToStringTag = Symbol ? Symbol.toStringTag : undefined;

    var defineProperty = (function() {
      try {
        var func = getNative(Object, 'defineProperty');
        func({}, '', {});
        return func;
      } catch (e) {}
    }());

    /** Mocked built-ins. */
    var ctxClearTimeout = context.clearTimeout !== root.clearTimeout && context.clearTimeout,
        ctxNow = Date && Date.now !== root.Date.now && Date.now,
        ctxSetTimeout = context.setTimeout !== root.setTimeout && context.setTimeout;

    /* Built-in method references for those with the same name as other `lodash` methods. */
    var nativeCeil = Math.ceil,
        nativeFloor = Math.floor,
        nativeGetSymbols = Object.getOwnPropertySymbols,
        nativeIsBuffer = Buffer ? Buffer.isBuffer : undefined,
        nativeIsFinite = context.isFinite,
        nativeJoin = arrayProto.join,
        nativeKeys = overArg(Object.keys, Object),
        nativeMax = Math.max,
        nativeMin = Math.min,
        nativeNow = Date.now,
        nativeParseInt = context.parseInt,
        nativeRandom = Math.random,
        nativeReverse = arrayProto.reverse;

    /* Built-in method references that are verified to be native. */
    var DataView = getNative(context, 'DataView'),
        Map = getNative(context, 'Map'),
        Promise = getNative(context, 'Promise'),
        Set = getNative(context, 'Set'),
        WeakMap = getNative(context, 'WeakMap'),
        nativeCreate = getNative(Object, 'create');

    /** Used to store function metadata. */
    var metaMap = WeakMap && new WeakMap;

    /** Used to lookup unminified function names. */
    var realNames = {};

    /** Used to detect maps, sets, and weakmaps. */
    var dataViewCtorString = toSource(DataView),
        mapCtorString = toSource(Map),
        promiseCtorString = toSource(Promise),
        setCtorString = toSource(Set),
        weakMapCtorString = toSource(WeakMap);

    /** Used to convert symbols to primitives and strings. */
    var symbolProto = Symbol ? Symbol.prototype : undefined,
        symbolValueOf = symbolProto ? symbolProto.valueOf : undefined,
        symbolToString = symbolProto ? symbolProto.toString : undefined;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` object which wraps `value` to enable implicit method
     * chain sequences. Methods that operate on and return arrays, collections,
     * and functions can be chained together. Methods that retrieve a single value
     * or may return a primitive value will automatically end the chain sequence
     * and return the unwrapped value. Otherwise, the value must be unwrapped
     * with `_#value`.
     *
     * Explicit chain sequences, which must be unwrapped with `_#value`, may be
     * enabled using `_.chain`.
     *
     * The execution of chained methods is lazy, that is, it's deferred until
     * `_#value` is implicitly or explicitly called.
     *
     * Lazy evaluation allows several methods to support shortcut fusion.
     * Shortcut fusion is an optimization to merge iteratee calls; this avoids
     * the creation of intermediate arrays and can greatly reduce the number of
     * iteratee executions. Sections of a chain sequence qualify for shortcut
     * fusion if the section is applied to an array and iteratees accept only
     * one argument. The heuristic for whether a section qualifies for shortcut
     * fusion is subject to change.
     *
     * Chaining is supported in custom builds as long as the `_#value` method is
     * directly or indirectly included in the build.
     *
     * In addition to lodash methods, wrappers have `Array` and `String` methods.
     *
     * The wrapper `Array` methods are:
     * `concat`, `join`, `pop`, `push`, `shift`, `sort`, `splice`, and `unshift`
     *
     * The wrapper `String` methods are:
     * `replace` and `split`
     *
     * The wrapper methods that support shortcut fusion are:
     * `at`, `compact`, `drop`, `dropRight`, `dropWhile`, `filter`, `find`,
     * `findLast`, `head`, `initial`, `last`, `map`, `reject`, `reverse`, `slice`,
     * `tail`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `toArray`
     *
     * The chainable wrapper methods are:
     * `after`, `ary`, `assign`, `assignIn`, `assignInWith`, `assignWith`, `at`,
     * `before`, `bind`, `bindAll`, `bindKey`, `castArray`, `chain`, `chunk`,
     * `commit`, `compact`, `concat`, `conforms`, `constant`, `countBy`, `create`,
     * `curry`, `debounce`, `defaults`, `defaultsDeep`, `defer`, `delay`,
     * `difference`, `differenceBy`, `differenceWith`, `drop`, `dropRight`,
     * `dropRightWhile`, `dropWhile`, `extend`, `extendWith`, `fill`, `filter`,
     * `flatMap`, `flatMapDeep`, `flatMapDepth`, `flatten`, `flattenDeep`,
     * `flattenDepth`, `flip`, `flow`, `flowRight`, `fromPairs`, `functions`,
     * `functionsIn`, `groupBy`, `initial`, `intersection`, `intersectionBy`,
     * `intersectionWith`, `invert`, `invertBy`, `invokeMap`, `iteratee`, `keyBy`,
     * `keys`, `keysIn`, `map`, `mapKeys`, `mapValues`, `matches`, `matchesProperty`,
     * `memoize`, `merge`, `mergeWith`, `method`, `methodOf`, `mixin`, `negate`,
     * `nthArg`, `omit`, `omitBy`, `once`, `orderBy`, `over`, `overArgs`,
     * `overEvery`, `overSome`, `partial`, `partialRight`, `partition`, `pick`,
     * `pickBy`, `plant`, `property`, `propertyOf`, `pull`, `pullAll`, `pullAllBy`,
     * `pullAllWith`, `pullAt`, `push`, `range`, `rangeRight`, `rearg`, `reject`,
     * `remove`, `rest`, `reverse`, `sampleSize`, `set`, `setWith`, `shuffle`,
     * `slice`, `sort`, `sortBy`, `splice`, `spread`, `tail`, `take`, `takeRight`,
     * `takeRightWhile`, `takeWhile`, `tap`, `throttle`, `thru`, `toArray`,
     * `toPairs`, `toPairsIn`, `toPath`, `toPlainObject`, `transform`, `unary`,
     * `union`, `unionBy`, `unionWith`, `uniq`, `uniqBy`, `uniqWith`, `unset`,
     * `unshift`, `unzip`, `unzipWith`, `update`, `updateWith`, `values`,
     * `valuesIn`, `without`, `wrap`, `xor`, `xorBy`, `xorWith`, `zip`,
     * `zipObject`, `zipObjectDeep`, and `zipWith`
     *
     * The wrapper methods that are **not** chainable by default are:
     * `add`, `attempt`, `camelCase`, `capitalize`, `ceil`, `clamp`, `clone`,
     * `cloneDeep`, `cloneDeepWith`, `cloneWith`, `conformsTo`, `deburr`,
     * `defaultTo`, `divide`, `each`, `eachRight`, `endsWith`, `eq`, `escape`,
     * `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`, `findLast`,
     * `findLastIndex`, `findLastKey`, `first`, `floor`, `forEach`, `forEachRight`,
     * `forIn`, `forInRight`, `forOwn`, `forOwnRight`, `get`, `gt`, `gte`, `has`,
     * `hasIn`, `head`, `identity`, `includes`, `indexOf`, `inRange`, `invoke`,
     * `isArguments`, `isArray`, `isArrayBuffer`, `isArrayLike`, `isArrayLikeObject`,
     * `isBoolean`, `isBuffer`, `isDate`, `isElement`, `isEmpty`, `isEqual`,
     * `isEqualWith`, `isError`, `isFinite`, `isFunction`, `isInteger`, `isLength`,
     * `isMap`, `isMatch`, `isMatchWith`, `isNaN`, `isNative`, `isNil`, `isNull`,
     * `isNumber`, `isObject`, `isObjectLike`, `isPlainObject`, `isRegExp`,
     * `isSafeInteger`, `isSet`, `isString`, `isUndefined`, `isTypedArray`,
     * `isWeakMap`, `isWeakSet`, `join`, `kebabCase`, `last`, `lastIndexOf`,
     * `lowerCase`, `lowerFirst`, `lt`, `lte`, `max`, `maxBy`, `mean`, `meanBy`,
     * `min`, `minBy`, `multiply`, `noConflict`, `noop`, `now`, `nth`, `pad`,
     * `padEnd`, `padStart`, `parseInt`, `pop`, `random`, `reduce`, `reduceRight`,
     * `repeat`, `result`, `round`, `runInContext`, `sample`, `shift`, `size`,
     * `snakeCase`, `some`, `sortedIndex`, `sortedIndexBy`, `sortedLastIndex`,
     * `sortedLastIndexBy`, `startCase`, `startsWith`, `stubArray`, `stubFalse`,
     * `stubObject`, `stubString`, `stubTrue`, `subtract`, `sum`, `sumBy`,
     * `template`, `times`, `toFinite`, `toInteger`, `toJSON`, `toLength`,
     * `toLower`, `toNumber`, `toSafeInteger`, `toString`, `toUpper`, `trim`,
     * `trimEnd`, `trimStart`, `truncate`, `unescape`, `uniqueId`, `upperCase`,
     * `upperFirst`, `value`, and `words`
     *
     * @name _
     * @constructor
     * @category Seq
     * @param {*} value The value to wrap in a `lodash` instance.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var wrapped = _([1, 2, 3]);
     *
     * // Returns an unwrapped value.
     * wrapped.reduce(_.add);
     * // => 6
     *
     * // Returns a wrapped value.
     * var squares = wrapped.map(square);
     *
     * _.isArray(squares);
     * // => false
     *
     * _.isArray(squares.value());
     * // => true
     */
    function lodash(value) {
      if (isObjectLike(value) && !isArray(value) && !(value instanceof LazyWrapper)) {
        if (value instanceof LodashWrapper) {
          return value;
        }
        if (hasOwnProperty.call(value, '__wrapped__')) {
          return wrapperClone(value);
        }
      }
      return new LodashWrapper(value);
    }

    /**
     * The base implementation of `_.create` without support for assigning
     * properties to the created object.
     *
     * @private
     * @param {Object} proto The object to inherit from.
     * @returns {Object} Returns the new object.
     */
    var baseCreate = (function() {
      function object() {}
      return function(proto) {
        if (!isObject(proto)) {
          return {};
        }
        if (objectCreate) {
          return objectCreate(proto);
        }
        object.prototype = proto;
        var result = new object;
        object.prototype = undefined;
        return result;
      };
    }());

    /**
     * The function whose prototype chain sequence wrappers inherit from.
     *
     * @private
     */
    function baseLodash() {
      // No operation performed.
    }

    /**
     * The base constructor for creating `lodash` wrapper objects.
     *
     * @private
     * @param {*} value The value to wrap.
     * @param {boolean} [chainAll] Enable explicit method chain sequences.
     */
    function LodashWrapper(value, chainAll) {
      this.__wrapped__ = value;
      this.__actions__ = [];
      this.__chain__ = !!chainAll;
      this.__index__ = 0;
      this.__values__ = undefined;
    }

    /**
     * By default, the template delimiters used by lodash are like those in
     * embedded Ruby (ERB) as well as ES2015 template strings. Change the
     * following template settings to use alternative delimiters.
     *
     * @static
     * @memberOf _
     * @type {Object}
     */
    lodash.templateSettings = {

      /**
       * Used to detect `data` property values to be HTML-escaped.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'escape': reEscape,

      /**
       * Used to detect code to be evaluated.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'evaluate': reEvaluate,

      /**
       * Used to detect `data` property values to inject.
       *
       * @memberOf _.templateSettings
       * @type {RegExp}
       */
      'interpolate': reInterpolate,

      /**
       * Used to reference the data object in the template text.
       *
       * @memberOf _.templateSettings
       * @type {string}
       */
      'variable': '',

      /**
       * Used to import variables into the compiled template.
       *
       * @memberOf _.templateSettings
       * @type {Object}
       */
      'imports': {

        /**
         * A reference to the `lodash` function.
         *
         * @memberOf _.templateSettings.imports
         * @type {Function}
         */
        '_': lodash
      }
    };

    // Ensure wrappers are instances of `baseLodash`.
    lodash.prototype = baseLodash.prototype;
    lodash.prototype.constructor = lodash;

    LodashWrapper.prototype = baseCreate(baseLodash.prototype);
    LodashWrapper.prototype.constructor = LodashWrapper;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a lazy wrapper object which wraps `value` to enable lazy evaluation.
     *
     * @private
     * @constructor
     * @param {*} value The value to wrap.
     */
    function LazyWrapper(value) {
      this.__wrapped__ = value;
      this.__actions__ = [];
      this.__dir__ = 1;
      this.__filtered__ = false;
      this.__iteratees__ = [];
      this.__takeCount__ = MAX_ARRAY_LENGTH;
      this.__views__ = [];
    }

    /**
     * Creates a clone of the lazy wrapper object.
     *
     * @private
     * @name clone
     * @memberOf LazyWrapper
     * @returns {Object} Returns the cloned `LazyWrapper` object.
     */
    function lazyClone() {
      var result = new LazyWrapper(this.__wrapped__);
      result.__actions__ = copyArray(this.__actions__);
      result.__dir__ = this.__dir__;
      result.__filtered__ = this.__filtered__;
      result.__iteratees__ = copyArray(this.__iteratees__);
      result.__takeCount__ = this.__takeCount__;
      result.__views__ = copyArray(this.__views__);
      return result;
    }

    /**
     * Reverses the direction of lazy iteration.
     *
     * @private
     * @name reverse
     * @memberOf LazyWrapper
     * @returns {Object} Returns the new reversed `LazyWrapper` object.
     */
    function lazyReverse() {
      if (this.__filtered__) {
        var result = new LazyWrapper(this);
        result.__dir__ = -1;
        result.__filtered__ = true;
      } else {
        result = this.clone();
        result.__dir__ *= -1;
      }
      return result;
    }

    /**
     * Extracts the unwrapped value from its lazy wrapper.
     *
     * @private
     * @name value
     * @memberOf LazyWrapper
     * @returns {*} Returns the unwrapped value.
     */
    function lazyValue() {
      var array = this.__wrapped__.value(),
          dir = this.__dir__,
          isArr = isArray(array),
          isRight = dir < 0,
          arrLength = isArr ? array.length : 0,
          view = getView(0, arrLength, this.__views__),
          start = view.start,
          end = view.end,
          length = end - start,
          index = isRight ? end : (start - 1),
          iteratees = this.__iteratees__,
          iterLength = iteratees.length,
          resIndex = 0,
          takeCount = nativeMin(length, this.__takeCount__);

      if (!isArr || (!isRight && arrLength == length && takeCount == length)) {
        return baseWrapperValue(array, this.__actions__);
      }
      var result = [];

      outer:
      while (length-- && resIndex < takeCount) {
        index += dir;

        var iterIndex = -1,
            value = array[index];

        while (++iterIndex < iterLength) {
          var data = iteratees[iterIndex],
              iteratee = data.iteratee,
              type = data.type,
              computed = iteratee(value);

          if (type == LAZY_MAP_FLAG) {
            value = computed;
          } else if (!computed) {
            if (type == LAZY_FILTER_FLAG) {
              continue outer;
            } else {
              break outer;
            }
          }
        }
        result[resIndex++] = value;
      }
      return result;
    }

    // Ensure `LazyWrapper` is an instance of `baseLodash`.
    LazyWrapper.prototype = baseCreate(baseLodash.prototype);
    LazyWrapper.prototype.constructor = LazyWrapper;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a hash object.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function Hash(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the hash.
     *
     * @private
     * @name clear
     * @memberOf Hash
     */
    function hashClear() {
      this.__data__ = nativeCreate ? nativeCreate(null) : {};
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the hash.
     *
     * @private
     * @name delete
     * @memberOf Hash
     * @param {Object} hash The hash to modify.
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function hashDelete(key) {
      var result = this.has(key) && delete this.__data__[key];
      this.size -= result ? 1 : 0;
      return result;
    }

    /**
     * Gets the hash value for `key`.
     *
     * @private
     * @name get
     * @memberOf Hash
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function hashGet(key) {
      var data = this.__data__;
      if (nativeCreate) {
        var result = data[key];
        return result === HASH_UNDEFINED ? undefined : result;
      }
      return hasOwnProperty.call(data, key) ? data[key] : undefined;
    }

    /**
     * Checks if a hash value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf Hash
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function hashHas(key) {
      var data = this.__data__;
      return nativeCreate ? (data[key] !== undefined) : hasOwnProperty.call(data, key);
    }

    /**
     * Sets the hash `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf Hash
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the hash instance.
     */
    function hashSet(key, value) {
      var data = this.__data__;
      this.size += this.has(key) ? 0 : 1;
      data[key] = (nativeCreate && value === undefined) ? HASH_UNDEFINED : value;
      return this;
    }

    // Add methods to `Hash`.
    Hash.prototype.clear = hashClear;
    Hash.prototype['delete'] = hashDelete;
    Hash.prototype.get = hashGet;
    Hash.prototype.has = hashHas;
    Hash.prototype.set = hashSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates an list cache object.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function ListCache(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the list cache.
     *
     * @private
     * @name clear
     * @memberOf ListCache
     */
    function listCacheClear() {
      this.__data__ = [];
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the list cache.
     *
     * @private
     * @name delete
     * @memberOf ListCache
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function listCacheDelete(key) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      if (index < 0) {
        return false;
      }
      var lastIndex = data.length - 1;
      if (index == lastIndex) {
        data.pop();
      } else {
        splice.call(data, index, 1);
      }
      --this.size;
      return true;
    }

    /**
     * Gets the list cache value for `key`.
     *
     * @private
     * @name get
     * @memberOf ListCache
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function listCacheGet(key) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      return index < 0 ? undefined : data[index][1];
    }

    /**
     * Checks if a list cache value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf ListCache
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function listCacheHas(key) {
      return assocIndexOf(this.__data__, key) > -1;
    }

    /**
     * Sets the list cache `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf ListCache
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the list cache instance.
     */
    function listCacheSet(key, value) {
      var data = this.__data__,
          index = assocIndexOf(data, key);

      if (index < 0) {
        ++this.size;
        data.push([key, value]);
      } else {
        data[index][1] = value;
      }
      return this;
    }

    // Add methods to `ListCache`.
    ListCache.prototype.clear = listCacheClear;
    ListCache.prototype['delete'] = listCacheDelete;
    ListCache.prototype.get = listCacheGet;
    ListCache.prototype.has = listCacheHas;
    ListCache.prototype.set = listCacheSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a map cache object to store key-value pairs.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function MapCache(entries) {
      var index = -1,
          length = entries == null ? 0 : entries.length;

      this.clear();
      while (++index < length) {
        var entry = entries[index];
        this.set(entry[0], entry[1]);
      }
    }

    /**
     * Removes all key-value entries from the map.
     *
     * @private
     * @name clear
     * @memberOf MapCache
     */
    function mapCacheClear() {
      this.size = 0;
      this.__data__ = {
        'hash': new Hash,
        'map': new (Map || ListCache),
        'string': new Hash
      };
    }

    /**
     * Removes `key` and its value from the map.
     *
     * @private
     * @name delete
     * @memberOf MapCache
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function mapCacheDelete(key) {
      var result = getMapData(this, key)['delete'](key);
      this.size -= result ? 1 : 0;
      return result;
    }

    /**
     * Gets the map value for `key`.
     *
     * @private
     * @name get
     * @memberOf MapCache
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function mapCacheGet(key) {
      return getMapData(this, key).get(key);
    }

    /**
     * Checks if a map value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf MapCache
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function mapCacheHas(key) {
      return getMapData(this, key).has(key);
    }

    /**
     * Sets the map `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf MapCache
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the map cache instance.
     */
    function mapCacheSet(key, value) {
      var data = getMapData(this, key),
          size = data.size;

      data.set(key, value);
      this.size += data.size == size ? 0 : 1;
      return this;
    }

    // Add methods to `MapCache`.
    MapCache.prototype.clear = mapCacheClear;
    MapCache.prototype['delete'] = mapCacheDelete;
    MapCache.prototype.get = mapCacheGet;
    MapCache.prototype.has = mapCacheHas;
    MapCache.prototype.set = mapCacheSet;

    /*------------------------------------------------------------------------*/

    /**
     *
     * Creates an array cache object to store unique values.
     *
     * @private
     * @constructor
     * @param {Array} [values] The values to cache.
     */
    function SetCache(values) {
      var index = -1,
          length = values == null ? 0 : values.length;

      this.__data__ = new MapCache;
      while (++index < length) {
        this.add(values[index]);
      }
    }

    /**
     * Adds `value` to the array cache.
     *
     * @private
     * @name add
     * @memberOf SetCache
     * @alias push
     * @param {*} value The value to cache.
     * @returns {Object} Returns the cache instance.
     */
    function setCacheAdd(value) {
      this.__data__.set(value, HASH_UNDEFINED);
      return this;
    }

    /**
     * Checks if `value` is in the array cache.
     *
     * @private
     * @name has
     * @memberOf SetCache
     * @param {*} value The value to search for.
     * @returns {number} Returns `true` if `value` is found, else `false`.
     */
    function setCacheHas(value) {
      return this.__data__.has(value);
    }

    // Add methods to `SetCache`.
    SetCache.prototype.add = SetCache.prototype.push = setCacheAdd;
    SetCache.prototype.has = setCacheHas;

    /*------------------------------------------------------------------------*/

    /**
     * Creates a stack cache object to store key-value pairs.
     *
     * @private
     * @constructor
     * @param {Array} [entries] The key-value pairs to cache.
     */
    function Stack(entries) {
      var data = this.__data__ = new ListCache(entries);
      this.size = data.size;
    }

    /**
     * Removes all key-value entries from the stack.
     *
     * @private
     * @name clear
     * @memberOf Stack
     */
    function stackClear() {
      this.__data__ = new ListCache;
      this.size = 0;
    }

    /**
     * Removes `key` and its value from the stack.
     *
     * @private
     * @name delete
     * @memberOf Stack
     * @param {string} key The key of the value to remove.
     * @returns {boolean} Returns `true` if the entry was removed, else `false`.
     */
    function stackDelete(key) {
      var data = this.__data__,
          result = data['delete'](key);

      this.size = data.size;
      return result;
    }

    /**
     * Gets the stack value for `key`.
     *
     * @private
     * @name get
     * @memberOf Stack
     * @param {string} key The key of the value to get.
     * @returns {*} Returns the entry value.
     */
    function stackGet(key) {
      return this.__data__.get(key);
    }

    /**
     * Checks if a stack value for `key` exists.
     *
     * @private
     * @name has
     * @memberOf Stack
     * @param {string} key The key of the entry to check.
     * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
     */
    function stackHas(key) {
      return this.__data__.has(key);
    }

    /**
     * Sets the stack `key` to `value`.
     *
     * @private
     * @name set
     * @memberOf Stack
     * @param {string} key The key of the value to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns the stack cache instance.
     */
    function stackSet(key, value) {
      var data = this.__data__;
      if (data instanceof ListCache) {
        var pairs = data.__data__;
        if (!Map || (pairs.length < LARGE_ARRAY_SIZE - 1)) {
          pairs.push([key, value]);
          this.size = ++data.size;
          return this;
        }
        data = this.__data__ = new MapCache(pairs);
      }
      data.set(key, value);
      this.size = data.size;
      return this;
    }

    // Add methods to `Stack`.
    Stack.prototype.clear = stackClear;
    Stack.prototype['delete'] = stackDelete;
    Stack.prototype.get = stackGet;
    Stack.prototype.has = stackHas;
    Stack.prototype.set = stackSet;

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of the enumerable property names of the array-like `value`.
     *
     * @private
     * @param {*} value The value to query.
     * @param {boolean} inherited Specify returning inherited property names.
     * @returns {Array} Returns the array of property names.
     */
    function arrayLikeKeys(value, inherited) {
      var isArr = isArray(value),
          isArg = !isArr && isArguments(value),
          isBuff = !isArr && !isArg && isBuffer(value),
          isType = !isArr && !isArg && !isBuff && isTypedArray(value),
          skipIndexes = isArr || isArg || isBuff || isType,
          result = skipIndexes ? baseTimes(value.length, String) : [],
          length = result.length;

      for (var key in value) {
        if ((inherited || hasOwnProperty.call(value, key)) &&
            !(skipIndexes && (
               // Safari 9 has enumerable `arguments.length` in strict mode.
               key == 'length' ||
               // Node.js 0.10 has enumerable non-index properties on buffers.
               (isBuff && (key == 'offset' || key == 'parent')) ||
               // PhantomJS 2 has enumerable non-index properties on typed arrays.
               (isType && (key == 'buffer' || key == 'byteLength' || key == 'byteOffset')) ||
               // Skip index properties.
               isIndex(key, length)
            ))) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * A specialized version of `_.sample` for arrays.
     *
     * @private
     * @param {Array} array The array to sample.
     * @returns {*} Returns the random element.
     */
    function arraySample(array) {
      var length = array.length;
      return length ? array[baseRandom(0, length - 1)] : undefined;
    }

    /**
     * A specialized version of `_.sampleSize` for arrays.
     *
     * @private
     * @param {Array} array The array to sample.
     * @param {number} n The number of elements to sample.
     * @returns {Array} Returns the random elements.
     */
    function arraySampleSize(array, n) {
      return shuffleSelf(copyArray(array), baseClamp(n, 0, array.length));
    }

    /**
     * A specialized version of `_.shuffle` for arrays.
     *
     * @private
     * @param {Array} array The array to shuffle.
     * @returns {Array} Returns the new shuffled array.
     */
    function arrayShuffle(array) {
      return shuffleSelf(copyArray(array));
    }

    /**
     * This function is like `assignValue` except that it doesn't assign
     * `undefined` values.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function assignMergeValue(object, key, value) {
      if ((value !== undefined && !eq(object[key], value)) ||
          (value === undefined && !(key in object))) {
        baseAssignValue(object, key, value);
      }
    }

    /**
     * Assigns `value` to `key` of `object` if the existing value is not equivalent
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function assignValue(object, key, value) {
      var objValue = object[key];
      if (!(hasOwnProperty.call(object, key) && eq(objValue, value)) ||
          (value === undefined && !(key in object))) {
        baseAssignValue(object, key, value);
      }
    }

    /**
     * Gets the index at which the `key` is found in `array` of key-value pairs.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {*} key The key to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     */
    function assocIndexOf(array, key) {
      var length = array.length;
      while (length--) {
        if (eq(array[length][0], key)) {
          return length;
        }
      }
      return -1;
    }

    /**
     * Aggregates elements of `collection` on `accumulator` with keys transformed
     * by `iteratee` and values set by `setter`.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} setter The function to set `accumulator` values.
     * @param {Function} iteratee The iteratee to transform keys.
     * @param {Object} accumulator The initial aggregated object.
     * @returns {Function} Returns `accumulator`.
     */
    function baseAggregator(collection, setter, iteratee, accumulator) {
      baseEach(collection, function(value, key, collection) {
        setter(accumulator, value, iteratee(value), collection);
      });
      return accumulator;
    }

    /**
     * The base implementation of `_.assign` without support for multiple sources
     * or `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @returns {Object} Returns `object`.
     */
    function baseAssign(object, source) {
      return object && copyObject(source, keys(source), object);
    }

    /**
     * The base implementation of `_.assignIn` without support for multiple sources
     * or `customizer` functions.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @returns {Object} Returns `object`.
     */
    function baseAssignIn(object, source) {
      return object && copyObject(source, keysIn(source), object);
    }

    /**
     * The base implementation of `assignValue` and `assignMergeValue` without
     * value checks.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {string} key The key of the property to assign.
     * @param {*} value The value to assign.
     */
    function baseAssignValue(object, key, value) {
      if (key == '__proto__' && defineProperty) {
        defineProperty(object, key, {
          'configurable': true,
          'enumerable': true,
          'value': value,
          'writable': true
        });
      } else {
        object[key] = value;
      }
    }

    /**
     * The base implementation of `_.at` without support for individual paths.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {string[]} paths The property paths to pick.
     * @returns {Array} Returns the picked elements.
     */
    function baseAt(object, paths) {
      var index = -1,
          length = paths.length,
          result = Array(length),
          skip = object == null;

      while (++index < length) {
        result[index] = skip ? undefined : get(object, paths[index]);
      }
      return result;
    }

    /**
     * The base implementation of `_.clamp` which doesn't coerce arguments.
     *
     * @private
     * @param {number} number The number to clamp.
     * @param {number} [lower] The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the clamped number.
     */
    function baseClamp(number, lower, upper) {
      if (number === number) {
        if (upper !== undefined) {
          number = number <= upper ? number : upper;
        }
        if (lower !== undefined) {
          number = number >= lower ? number : lower;
        }
      }
      return number;
    }

    /**
     * The base implementation of `_.clone` and `_.cloneDeep` which tracks
     * traversed objects.
     *
     * @private
     * @param {*} value The value to clone.
     * @param {boolean} bitmask The bitmask flags.
     *  1 - Deep clone
     *  2 - Flatten inherited properties
     *  4 - Clone symbols
     * @param {Function} [customizer] The function to customize cloning.
     * @param {string} [key] The key of `value`.
     * @param {Object} [object] The parent object of `value`.
     * @param {Object} [stack] Tracks traversed objects and their clone counterparts.
     * @returns {*} Returns the cloned value.
     */
    function baseClone(value, bitmask, customizer, key, object, stack) {
      var result,
          isDeep = bitmask & CLONE_DEEP_FLAG,
          isFlat = bitmask & CLONE_FLAT_FLAG,
          isFull = bitmask & CLONE_SYMBOLS_FLAG;

      if (customizer) {
        result = object ? customizer(value, key, object, stack) : customizer(value);
      }
      if (result !== undefined) {
        return result;
      }
      if (!isObject(value)) {
        return value;
      }
      var isArr = isArray(value);
      if (isArr) {
        result = initCloneArray(value);
        if (!isDeep) {
          return copyArray(value, result);
        }
      } else {
        var tag = getTag(value),
            isFunc = tag == funcTag || tag == genTag;

        if (isBuffer(value)) {
          return cloneBuffer(value, isDeep);
        }
        if (tag == objectTag || tag == argsTag || (isFunc && !object)) {
          result = (isFlat || isFunc) ? {} : initCloneObject(value);
          if (!isDeep) {
            return isFlat
              ? copySymbolsIn(value, baseAssignIn(result, value))
              : copySymbols(value, baseAssign(result, value));
          }
        } else {
          if (!cloneableTags[tag]) {
            return object ? value : {};
          }
          result = initCloneByTag(value, tag, isDeep);
        }
      }
      // Check for circular references and return its corresponding clone.
      stack || (stack = new Stack);
      var stacked = stack.get(value);
      if (stacked) {
        return stacked;
      }
      stack.set(value, result);

      if (isSet(value)) {
        value.forEach(function(subValue) {
          result.add(baseClone(subValue, bitmask, customizer, subValue, value, stack));
        });
      } else if (isMap(value)) {
        value.forEach(function(subValue, key) {
          result.set(key, baseClone(subValue, bitmask, customizer, key, value, stack));
        });
      }

      var keysFunc = isFull
        ? (isFlat ? getAllKeysIn : getAllKeys)
        : (isFlat ? keysIn : keys);

      var props = isArr ? undefined : keysFunc(value);
      arrayEach(props || value, function(subValue, key) {
        if (props) {
          key = subValue;
          subValue = value[key];
        }
        // Recursively populate clone (susceptible to call stack limits).
        assignValue(result, key, baseClone(subValue, bitmask, customizer, key, value, stack));
      });
      return result;
    }

    /**
     * The base implementation of `_.conforms` which doesn't clone `source`.
     *
     * @private
     * @param {Object} source The object of property predicates to conform to.
     * @returns {Function} Returns the new spec function.
     */
    function baseConforms(source) {
      var props = keys(source);
      return function(object) {
        return baseConformsTo(object, source, props);
      };
    }

    /**
     * The base implementation of `_.conformsTo` which accepts `props` to check.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property predicates to conform to.
     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
     */
    function baseConformsTo(object, source, props) {
      var length = props.length;
      if (object == null) {
        return !length;
      }
      object = Object(object);
      while (length--) {
        var key = props[length],
            predicate = source[key],
            value = object[key];

        if ((value === undefined && !(key in object)) || !predicate(value)) {
          return false;
        }
      }
      return true;
    }

    /**
     * The base implementation of `_.delay` and `_.defer` which accepts `args`
     * to provide to `func`.
     *
     * @private
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {Array} args The arguments to provide to `func`.
     * @returns {number|Object} Returns the timer id or timeout object.
     */
    function baseDelay(func, wait, args) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return setTimeout(function() { func.apply(undefined, args); }, wait);
    }

    /**
     * The base implementation of methods like `_.difference` without support
     * for excluding multiple arrays or iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Array} values The values to exclude.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     */
    function baseDifference(array, values, iteratee, comparator) {
      var index = -1,
          includes = arrayIncludes,
          isCommon = true,
          length = array.length,
          result = [],
          valuesLength = values.length;

      if (!length) {
        return result;
      }
      if (iteratee) {
        values = arrayMap(values, baseUnary(iteratee));
      }
      if (comparator) {
        includes = arrayIncludesWith;
        isCommon = false;
      }
      else if (values.length >= LARGE_ARRAY_SIZE) {
        includes = cacheHas;
        isCommon = false;
        values = new SetCache(values);
      }
      outer:
      while (++index < length) {
        var value = array[index],
            computed = iteratee == null ? value : iteratee(value);

        value = (comparator || value !== 0) ? value : 0;
        if (isCommon && computed === computed) {
          var valuesIndex = valuesLength;
          while (valuesIndex--) {
            if (values[valuesIndex] === computed) {
              continue outer;
            }
          }
          result.push(value);
        }
        else if (!includes(values, computed, comparator)) {
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.forEach` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     */
    var baseEach = createBaseEach(baseForOwn);

    /**
     * The base implementation of `_.forEachRight` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     */
    var baseEachRight = createBaseEach(baseForOwnRight, true);

    /**
     * The base implementation of `_.every` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`
     */
    function baseEvery(collection, predicate) {
      var result = true;
      baseEach(collection, function(value, index, collection) {
        result = !!predicate(value, index, collection);
        return result;
      });
      return result;
    }

    /**
     * The base implementation of methods like `_.max` and `_.min` which accepts a
     * `comparator` to determine the extremum value.
     *
     * @private
     * @param {Array} array The array to iterate over.
     * @param {Function} iteratee The iteratee invoked per iteration.
     * @param {Function} comparator The comparator used to compare values.
     * @returns {*} Returns the extremum value.
     */
    function baseExtremum(array, iteratee, comparator) {
      var index = -1,
          length = array.length;

      while (++index < length) {
        var value = array[index],
            current = iteratee(value);

        if (current != null && (computed === undefined
              ? (current === current && !isSymbol(current))
              : comparator(current, computed)
            )) {
          var computed = current,
              result = value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.fill` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     */
    function baseFill(array, value, start, end) {
      var length = array.length;

      start = toInteger(start);
      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = (end === undefined || end > length) ? length : toInteger(end);
      if (end < 0) {
        end += length;
      }
      end = start > end ? 0 : toLength(end);
      while (start < end) {
        array[start++] = value;
      }
      return array;
    }

    /**
     * The base implementation of `_.filter` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     */
    function baseFilter(collection, predicate) {
      var result = [];
      baseEach(collection, function(value, index, collection) {
        if (predicate(value, index, collection)) {
          result.push(value);
        }
      });
      return result;
    }

    /**
     * The base implementation of `_.flatten` with support for restricting flattening.
     *
     * @private
     * @param {Array} array The array to flatten.
     * @param {number} depth The maximum recursion depth.
     * @param {boolean} [predicate=isFlattenable] The function invoked per iteration.
     * @param {boolean} [isStrict] Restrict to values that pass `predicate` checks.
     * @param {Array} [result=[]] The initial result value.
     * @returns {Array} Returns the new flattened array.
     */
    function baseFlatten(array, depth, predicate, isStrict, result) {
      var index = -1,
          length = array.length;

      predicate || (predicate = isFlattenable);
      result || (result = []);

      while (++index < length) {
        var value = array[index];
        if (depth > 0 && predicate(value)) {
          if (depth > 1) {
            // Recursively flatten arrays (susceptible to call stack limits).
            baseFlatten(value, depth - 1, predicate, isStrict, result);
          } else {
            arrayPush(result, value);
          }
        } else if (!isStrict) {
          result[result.length] = value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `baseForOwn` which iterates over `object`
     * properties returned by `keysFunc` and invokes `iteratee` for each property.
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseFor = createBaseFor();

    /**
     * This function is like `baseFor` except that it iterates over properties
     * in the opposite order.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @returns {Object} Returns `object`.
     */
    var baseForRight = createBaseFor(true);

    /**
     * The base implementation of `_.forOwn` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwn(object, iteratee) {
      return object && baseFor(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.forOwnRight` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Object} Returns `object`.
     */
    function baseForOwnRight(object, iteratee) {
      return object && baseForRight(object, iteratee, keys);
    }

    /**
     * The base implementation of `_.functions` which creates an array of
     * `object` function property names filtered from `props`.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Array} props The property names to filter.
     * @returns {Array} Returns the function names.
     */
    function baseFunctions(object, props) {
      return arrayFilter(props, function(key) {
        return isFunction(object[key]);
      });
    }

    /**
     * The base implementation of `_.get` without support for default values.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to get.
     * @returns {*} Returns the resolved value.
     */
    function baseGet(object, path) {
      path = castPath(path, object);

      var index = 0,
          length = path.length;

      while (object != null && index < length) {
        object = object[toKey(path[index++])];
      }
      return (index && index == length) ? object : undefined;
    }

    /**
     * The base implementation of `getAllKeys` and `getAllKeysIn` which uses
     * `keysFunc` and `symbolsFunc` to get the enumerable property names and
     * symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Function} keysFunc The function to get the keys of `object`.
     * @param {Function} symbolsFunc The function to get the symbols of `object`.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function baseGetAllKeys(object, keysFunc, symbolsFunc) {
      var result = keysFunc(object);
      return isArray(object) ? result : arrayPush(result, symbolsFunc(object));
    }

    /**
     * The base implementation of `getTag` without fallbacks for buggy environments.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the `toStringTag`.
     */
    function baseGetTag(value) {
      if (value == null) {
        return value === undefined ? undefinedTag : nullTag;
      }
      return (symToStringTag && symToStringTag in Object(value))
        ? getRawTag(value)
        : objectToString(value);
    }

    /**
     * The base implementation of `_.gt` which doesn't coerce arguments.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than `other`,
     *  else `false`.
     */
    function baseGt(value, other) {
      return value > other;
    }

    /**
     * The base implementation of `_.has` without support for deep paths.
     *
     * @private
     * @param {Object} [object] The object to query.
     * @param {Array|string} key The key to check.
     * @returns {boolean} Returns `true` if `key` exists, else `false`.
     */
    function baseHas(object, key) {
      return object != null && hasOwnProperty.call(object, key);
    }

    /**
     * The base implementation of `_.hasIn` without support for deep paths.
     *
     * @private
     * @param {Object} [object] The object to query.
     * @param {Array|string} key The key to check.
     * @returns {boolean} Returns `true` if `key` exists, else `false`.
     */
    function baseHasIn(object, key) {
      return object != null && key in Object(object);
    }

    /**
     * The base implementation of `_.inRange` which doesn't coerce arguments.
     *
     * @private
     * @param {number} number The number to check.
     * @param {number} start The start of the range.
     * @param {number} end The end of the range.
     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
     */
    function baseInRange(number, start, end) {
      return number >= nativeMin(start, end) && number < nativeMax(start, end);
    }

    /**
     * The base implementation of methods like `_.intersection`, without support
     * for iteratee shorthands, that accepts an array of arrays to inspect.
     *
     * @private
     * @param {Array} arrays The arrays to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of shared values.
     */
    function baseIntersection(arrays, iteratee, comparator) {
      var includes = comparator ? arrayIncludesWith : arrayIncludes,
          length = arrays[0].length,
          othLength = arrays.length,
          othIndex = othLength,
          caches = Array(othLength),
          maxLength = Infinity,
          result = [];

      while (othIndex--) {
        var array = arrays[othIndex];
        if (othIndex && iteratee) {
          array = arrayMap(array, baseUnary(iteratee));
        }
        maxLength = nativeMin(array.length, maxLength);
        caches[othIndex] = !comparator && (iteratee || (length >= 120 && array.length >= 120))
          ? new SetCache(othIndex && array)
          : undefined;
      }
      array = arrays[0];

      var index = -1,
          seen = caches[0];

      outer:
      while (++index < length && result.length < maxLength) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        value = (comparator || value !== 0) ? value : 0;
        if (!(seen
              ? cacheHas(seen, computed)
              : includes(result, computed, comparator)
            )) {
          othIndex = othLength;
          while (--othIndex) {
            var cache = caches[othIndex];
            if (!(cache
                  ? cacheHas(cache, computed)
                  : includes(arrays[othIndex], computed, comparator))
                ) {
              continue outer;
            }
          }
          if (seen) {
            seen.push(computed);
          }
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.invert` and `_.invertBy` which inverts
     * `object` with values transformed by `iteratee` and set by `setter`.
     *
     * @private
     * @param {Object} object The object to iterate over.
     * @param {Function} setter The function to set `accumulator` values.
     * @param {Function} iteratee The iteratee to transform values.
     * @param {Object} accumulator The initial inverted object.
     * @returns {Function} Returns `accumulator`.
     */
    function baseInverter(object, setter, iteratee, accumulator) {
      baseForOwn(object, function(value, key, object) {
        setter(accumulator, iteratee(value), key, object);
      });
      return accumulator;
    }

    /**
     * The base implementation of `_.invoke` without support for individual
     * method arguments.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the method to invoke.
     * @param {Array} args The arguments to invoke the method with.
     * @returns {*} Returns the result of the invoked method.
     */
    function baseInvoke(object, path, args) {
      path = castPath(path, object);
      object = parent(object, path);
      var func = object == null ? object : object[toKey(last(path))];
      return func == null ? undefined : apply(func, object, args);
    }

    /**
     * The base implementation of `_.isArguments`.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
     */
    function baseIsArguments(value) {
      return isObjectLike(value) && baseGetTag(value) == argsTag;
    }

    /**
     * The base implementation of `_.isArrayBuffer` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
     */
    function baseIsArrayBuffer(value) {
      return isObjectLike(value) && baseGetTag(value) == arrayBufferTag;
    }

    /**
     * The base implementation of `_.isDate` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
     */
    function baseIsDate(value) {
      return isObjectLike(value) && baseGetTag(value) == dateTag;
    }

    /**
     * The base implementation of `_.isEqual` which supports partial comparisons
     * and tracks traversed objects.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {boolean} bitmask The bitmask flags.
     *  1 - Unordered comparison
     *  2 - Partial comparison
     * @param {Function} [customizer] The function to customize comparisons.
     * @param {Object} [stack] Tracks traversed `value` and `other` objects.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     */
    function baseIsEqual(value, other, bitmask, customizer, stack) {
      if (value === other) {
        return true;
      }
      if (value == null || other == null || (!isObjectLike(value) && !isObjectLike(other))) {
        return value !== value && other !== other;
      }
      return baseIsEqualDeep(value, other, bitmask, customizer, baseIsEqual, stack);
    }

    /**
     * A specialized version of `baseIsEqual` for arrays and objects which performs
     * deep comparisons and tracks traversed objects enabling objects with circular
     * references to be compared.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} [stack] Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function baseIsEqualDeep(object, other, bitmask, customizer, equalFunc, stack) {
      var objIsArr = isArray(object),
          othIsArr = isArray(other),
          objTag = objIsArr ? arrayTag : getTag(object),
          othTag = othIsArr ? arrayTag : getTag(other);

      objTag = objTag == argsTag ? objectTag : objTag;
      othTag = othTag == argsTag ? objectTag : othTag;

      var objIsObj = objTag == objectTag,
          othIsObj = othTag == objectTag,
          isSameTag = objTag == othTag;

      if (isSameTag && isBuffer(object)) {
        if (!isBuffer(other)) {
          return false;
        }
        objIsArr = true;
        objIsObj = false;
      }
      if (isSameTag && !objIsObj) {
        stack || (stack = new Stack);
        return (objIsArr || isTypedArray(object))
          ? equalArrays(object, other, bitmask, customizer, equalFunc, stack)
          : equalByTag(object, other, objTag, bitmask, customizer, equalFunc, stack);
      }
      if (!(bitmask & COMPARE_PARTIAL_FLAG)) {
        var objIsWrapped = objIsObj && hasOwnProperty.call(object, '__wrapped__'),
            othIsWrapped = othIsObj && hasOwnProperty.call(other, '__wrapped__');

        if (objIsWrapped || othIsWrapped) {
          var objUnwrapped = objIsWrapped ? object.value() : object,
              othUnwrapped = othIsWrapped ? other.value() : other;

          stack || (stack = new Stack);
          return equalFunc(objUnwrapped, othUnwrapped, bitmask, customizer, stack);
        }
      }
      if (!isSameTag) {
        return false;
      }
      stack || (stack = new Stack);
      return equalObjects(object, other, bitmask, customizer, equalFunc, stack);
    }

    /**
     * The base implementation of `_.isMap` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
     */
    function baseIsMap(value) {
      return isObjectLike(value) && getTag(value) == mapTag;
    }

    /**
     * The base implementation of `_.isMatch` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @param {Array} matchData The property names, values, and compare flags to match.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     */
    function baseIsMatch(object, source, matchData, customizer) {
      var index = matchData.length,
          length = index,
          noCustomizer = !customizer;

      if (object == null) {
        return !length;
      }
      object = Object(object);
      while (index--) {
        var data = matchData[index];
        if ((noCustomizer && data[2])
              ? data[1] !== object[data[0]]
              : !(data[0] in object)
            ) {
          return false;
        }
      }
      while (++index < length) {
        data = matchData[index];
        var key = data[0],
            objValue = object[key],
            srcValue = data[1];

        if (noCustomizer && data[2]) {
          if (objValue === undefined && !(key in object)) {
            return false;
          }
        } else {
          var stack = new Stack;
          if (customizer) {
            var result = customizer(objValue, srcValue, key, object, source, stack);
          }
          if (!(result === undefined
                ? baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG, customizer, stack)
                : result
              )) {
            return false;
          }
        }
      }
      return true;
    }

    /**
     * The base implementation of `_.isNative` without bad shim checks.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a native function,
     *  else `false`.
     */
    function baseIsNative(value) {
      if (!isObject(value) || isMasked(value)) {
        return false;
      }
      var pattern = isFunction(value) ? reIsNative : reIsHostCtor;
      return pattern.test(toSource(value));
    }

    /**
     * The base implementation of `_.isRegExp` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
     */
    function baseIsRegExp(value) {
      return isObjectLike(value) && baseGetTag(value) == regexpTag;
    }

    /**
     * The base implementation of `_.isSet` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
     */
    function baseIsSet(value) {
      return isObjectLike(value) && getTag(value) == setTag;
    }

    /**
     * The base implementation of `_.isTypedArray` without Node.js optimizations.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
     */
    function baseIsTypedArray(value) {
      return isObjectLike(value) &&
        isLength(value.length) && !!typedArrayTags[baseGetTag(value)];
    }

    /**
     * The base implementation of `_.iteratee`.
     *
     * @private
     * @param {*} [value=_.identity] The value to convert to an iteratee.
     * @returns {Function} Returns the iteratee.
     */
    function baseIteratee(value) {
      // Don't store the `typeof` result in a variable to avoid a JIT bug in Safari 9.
      // See https://bugs.webkit.org/show_bug.cgi?id=156034 for more details.
      if (typeof value == 'function') {
        return value;
      }
      if (value == null) {
        return identity;
      }
      if (typeof value == 'object') {
        return isArray(value)
          ? baseMatchesProperty(value[0], value[1])
          : baseMatches(value);
      }
      return property(value);
    }

    /**
     * The base implementation of `_.keys` which doesn't treat sparse arrays as dense.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function baseKeys(object) {
      if (!isPrototype(object)) {
        return nativeKeys(object);
      }
      var result = [];
      for (var key in Object(object)) {
        if (hasOwnProperty.call(object, key) && key != 'constructor') {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.keysIn` which doesn't treat sparse arrays as dense.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function baseKeysIn(object) {
      if (!isObject(object)) {
        return nativeKeysIn(object);
      }
      var isProto = isPrototype(object),
          result = [];

      for (var key in object) {
        if (!(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.lt` which doesn't coerce arguments.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than `other`,
     *  else `false`.
     */
    function baseLt(value, other) {
      return value < other;
    }

    /**
     * The base implementation of `_.map` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} iteratee The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     */
    function baseMap(collection, iteratee) {
      var index = -1,
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value, key, collection) {
        result[++index] = iteratee(value, key, collection);
      });
      return result;
    }

    /**
     * The base implementation of `_.matches` which doesn't clone `source`.
     *
     * @private
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new spec function.
     */
    function baseMatches(source) {
      var matchData = getMatchData(source);
      if (matchData.length == 1 && matchData[0][2]) {
        return matchesStrictComparable(matchData[0][0], matchData[0][1]);
      }
      return function(object) {
        return object === source || baseIsMatch(object, source, matchData);
      };
    }

    /**
     * The base implementation of `_.matchesProperty` which doesn't clone `srcValue`.
     *
     * @private
     * @param {string} path The path of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     */
    function baseMatchesProperty(path, srcValue) {
      if (isKey(path) && isStrictComparable(srcValue)) {
        return matchesStrictComparable(toKey(path), srcValue);
      }
      return function(object) {
        var objValue = get(object, path);
        return (objValue === undefined && objValue === srcValue)
          ? hasIn(object, path)
          : baseIsEqual(srcValue, objValue, COMPARE_PARTIAL_FLAG | COMPARE_UNORDERED_FLAG);
      };
    }

    /**
     * The base implementation of `_.merge` without support for multiple sources.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {number} srcIndex The index of `source`.
     * @param {Function} [customizer] The function to customize merged values.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     */
    function baseMerge(object, source, srcIndex, customizer, stack) {
      if (object === source) {
        return;
      }
      baseFor(source, function(srcValue, key) {
        stack || (stack = new Stack);
        if (isObject(srcValue)) {
          baseMergeDeep(object, source, key, srcIndex, baseMerge, customizer, stack);
        }
        else {
          var newValue = customizer
            ? customizer(safeGet(object, key), srcValue, (key + ''), object, source, stack)
            : undefined;

          if (newValue === undefined) {
            newValue = srcValue;
          }
          assignMergeValue(object, key, newValue);
        }
      }, keysIn);
    }

    /**
     * A specialized version of `baseMerge` for arrays and objects which performs
     * deep merges and tracks traversed objects enabling objects with circular
     * references to be merged.
     *
     * @private
     * @param {Object} object The destination object.
     * @param {Object} source The source object.
     * @param {string} key The key of the value to merge.
     * @param {number} srcIndex The index of `source`.
     * @param {Function} mergeFunc The function to merge values.
     * @param {Function} [customizer] The function to customize assigned values.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     */
    function baseMergeDeep(object, source, key, srcIndex, mergeFunc, customizer, stack) {
      var objValue = safeGet(object, key),
          srcValue = safeGet(source, key),
          stacked = stack.get(srcValue);

      if (stacked) {
        assignMergeValue(object, key, stacked);
        return;
      }
      var newValue = customizer
        ? customizer(objValue, srcValue, (key + ''), object, source, stack)
        : undefined;

      var isCommon = newValue === undefined;

      if (isCommon) {
        var isArr = isArray(srcValue),
            isBuff = !isArr && isBuffer(srcValue),
            isTyped = !isArr && !isBuff && isTypedArray(srcValue);

        newValue = srcValue;
        if (isArr || isBuff || isTyped) {
          if (isArray(objValue)) {
            newValue = objValue;
          }
          else if (isArrayLikeObject(objValue)) {
            newValue = copyArray(objValue);
          }
          else if (isBuff) {
            isCommon = false;
            newValue = cloneBuffer(srcValue, true);
          }
          else if (isTyped) {
            isCommon = false;
            newValue = cloneTypedArray(srcValue, true);
          }
          else {
            newValue = [];
          }
        }
        else if (isPlainObject(srcValue) || isArguments(srcValue)) {
          newValue = objValue;
          if (isArguments(objValue)) {
            newValue = toPlainObject(objValue);
          }
          else if (!isObject(objValue) || isFunction(objValue)) {
            newValue = initCloneObject(srcValue);
          }
        }
        else {
          isCommon = false;
        }
      }
      if (isCommon) {
        // Recursively merge objects and arrays (susceptible to call stack limits).
        stack.set(srcValue, newValue);
        mergeFunc(newValue, srcValue, srcIndex, customizer, stack);
        stack['delete'](srcValue);
      }
      assignMergeValue(object, key, newValue);
    }

    /**
     * The base implementation of `_.nth` which doesn't coerce arguments.
     *
     * @private
     * @param {Array} array The array to query.
     * @param {number} n The index of the element to return.
     * @returns {*} Returns the nth element of `array`.
     */
    function baseNth(array, n) {
      var length = array.length;
      if (!length) {
        return;
      }
      n += n < 0 ? length : 0;
      return isIndex(n, length) ? array[n] : undefined;
    }

    /**
     * The base implementation of `_.orderBy` without param guards.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
     * @param {string[]} orders The sort orders of `iteratees`.
     * @returns {Array} Returns the new sorted array.
     */
    function baseOrderBy(collection, iteratees, orders) {
      if (iteratees.length) {
        iteratees = arrayMap(iteratees, function(iteratee) {
          if (isArray(iteratee)) {
            return function(value) {
              return baseGet(value, iteratee.length === 1 ? iteratee[0] : iteratee);
            }
          }
          return iteratee;
        });
      } else {
        iteratees = [identity];
      }

      var index = -1;
      iteratees = arrayMap(iteratees, baseUnary(getIteratee()));

      var result = baseMap(collection, function(value, key, collection) {
        var criteria = arrayMap(iteratees, function(iteratee) {
          return iteratee(value);
        });
        return { 'criteria': criteria, 'index': ++index, 'value': value };
      });

      return baseSortBy(result, function(object, other) {
        return compareMultiple(object, other, orders);
      });
    }

    /**
     * The base implementation of `_.pick` without support for individual
     * property identifiers.
     *
     * @private
     * @param {Object} object The source object.
     * @param {string[]} paths The property paths to pick.
     * @returns {Object} Returns the new object.
     */
    function basePick(object, paths) {
      return basePickBy(object, paths, function(value, path) {
        return hasIn(object, path);
      });
    }

    /**
     * The base implementation of  `_.pickBy` without support for iteratee shorthands.
     *
     * @private
     * @param {Object} object The source object.
     * @param {string[]} paths The property paths to pick.
     * @param {Function} predicate The function invoked per property.
     * @returns {Object} Returns the new object.
     */
    function basePickBy(object, paths, predicate) {
      var index = -1,
          length = paths.length,
          result = {};

      while (++index < length) {
        var path = paths[index],
            value = baseGet(object, path);

        if (predicate(value, path)) {
          baseSet(result, castPath(path, object), value);
        }
      }
      return result;
    }

    /**
     * A specialized version of `baseProperty` which supports deep paths.
     *
     * @private
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new accessor function.
     */
    function basePropertyDeep(path) {
      return function(object) {
        return baseGet(object, path);
      };
    }

    /**
     * The base implementation of `_.pullAllBy` without support for iteratee
     * shorthands.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns `array`.
     */
    function basePullAll(array, values, iteratee, comparator) {
      var indexOf = comparator ? baseIndexOfWith : baseIndexOf,
          index = -1,
          length = values.length,
          seen = array;

      if (array === values) {
        values = copyArray(values);
      }
      if (iteratee) {
        seen = arrayMap(array, baseUnary(iteratee));
      }
      while (++index < length) {
        var fromIndex = 0,
            value = values[index],
            computed = iteratee ? iteratee(value) : value;

        while ((fromIndex = indexOf(seen, computed, fromIndex, comparator)) > -1) {
          if (seen !== array) {
            splice.call(seen, fromIndex, 1);
          }
          splice.call(array, fromIndex, 1);
        }
      }
      return array;
    }

    /**
     * The base implementation of `_.pullAt` without support for individual
     * indexes or capturing the removed elements.
     *
     * @private
     * @param {Array} array The array to modify.
     * @param {number[]} indexes The indexes of elements to remove.
     * @returns {Array} Returns `array`.
     */
    function basePullAt(array, indexes) {
      var length = array ? indexes.length : 0,
          lastIndex = length - 1;

      while (length--) {
        var index = indexes[length];
        if (length == lastIndex || index !== previous) {
          var previous = index;
          if (isIndex(index)) {
            splice.call(array, index, 1);
          } else {
            baseUnset(array, index);
          }
        }
      }
      return array;
    }

    /**
     * The base implementation of `_.random` without support for returning
     * floating-point numbers.
     *
     * @private
     * @param {number} lower The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the random number.
     */
    function baseRandom(lower, upper) {
      return lower + nativeFloor(nativeRandom() * (upper - lower + 1));
    }

    /**
     * The base implementation of `_.range` and `_.rangeRight` which doesn't
     * coerce arguments.
     *
     * @private
     * @param {number} start The start of the range.
     * @param {number} end The end of the range.
     * @param {number} step The value to increment or decrement by.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Array} Returns the range of numbers.
     */
    function baseRange(start, end, step, fromRight) {
      var index = -1,
          length = nativeMax(nativeCeil((end - start) / (step || 1)), 0),
          result = Array(length);

      while (length--) {
        result[fromRight ? length : ++index] = start;
        start += step;
      }
      return result;
    }

    /**
     * The base implementation of `_.repeat` which doesn't coerce arguments.
     *
     * @private
     * @param {string} string The string to repeat.
     * @param {number} n The number of times to repeat the string.
     * @returns {string} Returns the repeated string.
     */
    function baseRepeat(string, n) {
      var result = '';
      if (!string || n < 1 || n > MAX_SAFE_INTEGER) {
        return result;
      }
      // Leverage the exponentiation by squaring algorithm for a faster repeat.
      // See https://en.wikipedia.org/wiki/Exponentiation_by_squaring for more details.
      do {
        if (n % 2) {
          result += string;
        }
        n = nativeFloor(n / 2);
        if (n) {
          string += string;
        }
      } while (n);

      return result;
    }

    /**
     * The base implementation of `_.rest` which doesn't validate or coerce arguments.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @returns {Function} Returns the new function.
     */
    function baseRest(func, start) {
      return setToString(overRest(func, start, identity), func + '');
    }

    /**
     * The base implementation of `_.sample`.
     *
     * @private
     * @param {Array|Object} collection The collection to sample.
     * @returns {*} Returns the random element.
     */
    function baseSample(collection) {
      return arraySample(values(collection));
    }

    /**
     * The base implementation of `_.sampleSize` without param guards.
     *
     * @private
     * @param {Array|Object} collection The collection to sample.
     * @param {number} n The number of elements to sample.
     * @returns {Array} Returns the random elements.
     */
    function baseSampleSize(collection, n) {
      var array = values(collection);
      return shuffleSelf(array, baseClamp(n, 0, array.length));
    }

    /**
     * The base implementation of `_.set`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @param {Function} [customizer] The function to customize path creation.
     * @returns {Object} Returns `object`.
     */
    function baseSet(object, path, value, customizer) {
      if (!isObject(object)) {
        return object;
      }
      path = castPath(path, object);

      var index = -1,
          length = path.length,
          lastIndex = length - 1,
          nested = object;

      while (nested != null && ++index < length) {
        var key = toKey(path[index]),
            newValue = value;

        if (key === '__proto__' || key === 'constructor' || key === 'prototype') {
          return object;
        }

        if (index != lastIndex) {
          var objValue = nested[key];
          newValue = customizer ? customizer(objValue, key, nested) : undefined;
          if (newValue === undefined) {
            newValue = isObject(objValue)
              ? objValue
              : (isIndex(path[index + 1]) ? [] : {});
          }
        }
        assignValue(nested, key, newValue);
        nested = nested[key];
      }
      return object;
    }

    /**
     * The base implementation of `setData` without support for hot loop shorting.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var baseSetData = !metaMap ? identity : function(func, data) {
      metaMap.set(func, data);
      return func;
    };

    /**
     * The base implementation of `setToString` without support for hot loop shorting.
     *
     * @private
     * @param {Function} func The function to modify.
     * @param {Function} string The `toString` result.
     * @returns {Function} Returns `func`.
     */
    var baseSetToString = !defineProperty ? identity : function(func, string) {
      return defineProperty(func, 'toString', {
        'configurable': true,
        'enumerable': false,
        'value': constant(string),
        'writable': true
      });
    };

    /**
     * The base implementation of `_.shuffle`.
     *
     * @private
     * @param {Array|Object} collection The collection to shuffle.
     * @returns {Array} Returns the new shuffled array.
     */
    function baseShuffle(collection) {
      return shuffleSelf(values(collection));
    }

    /**
     * The base implementation of `_.slice` without an iteratee call guard.
     *
     * @private
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseSlice(array, start, end) {
      var index = -1,
          length = array.length;

      if (start < 0) {
        start = -start > length ? 0 : (length + start);
      }
      end = end > length ? length : end;
      if (end < 0) {
        end += length;
      }
      length = start > end ? 0 : ((end - start) >>> 0);
      start >>>= 0;

      var result = Array(length);
      while (++index < length) {
        result[index] = array[index + start];
      }
      return result;
    }

    /**
     * The base implementation of `_.some` without support for iteratee shorthands.
     *
     * @private
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} predicate The function invoked per iteration.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     */
    function baseSome(collection, predicate) {
      var result;

      baseEach(collection, function(value, index, collection) {
        result = predicate(value, index, collection);
        return !result;
      });
      return !!result;
    }

    /**
     * The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
     * performs a binary search of `array` to determine the index at which `value`
     * should be inserted into `array` in order to maintain its sort order.
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function baseSortedIndex(array, value, retHighest) {
      var low = 0,
          high = array == null ? low : array.length;

      if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
        while (low < high) {
          var mid = (low + high) >>> 1,
              computed = array[mid];

          if (computed !== null && !isSymbol(computed) &&
              (retHighest ? (computed <= value) : (computed < value))) {
            low = mid + 1;
          } else {
            high = mid;
          }
        }
        return high;
      }
      return baseSortedIndexBy(array, value, identity, retHighest);
    }

    /**
     * The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
     * which invokes `iteratee` for `value` and each element of `array` to compute
     * their sort ranking. The iteratee is invoked with one argument; (value).
     *
     * @private
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} iteratee The iteratee invoked per element.
     * @param {boolean} [retHighest] Specify returning the highest qualified index.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     */
    function baseSortedIndexBy(array, value, iteratee, retHighest) {
      var low = 0,
          high = array == null ? 0 : array.length;
      if (high === 0) {
        return 0;
      }

      value = iteratee(value);
      var valIsNaN = value !== value,
          valIsNull = value === null,
          valIsSymbol = isSymbol(value),
          valIsUndefined = value === undefined;

      while (low < high) {
        var mid = nativeFloor((low + high) / 2),
            computed = iteratee(array[mid]),
            othIsDefined = computed !== undefined,
            othIsNull = computed === null,
            othIsReflexive = computed === computed,
            othIsSymbol = isSymbol(computed);

        if (valIsNaN) {
          var setLow = retHighest || othIsReflexive;
        } else if (valIsUndefined) {
          setLow = othIsReflexive && (retHighest || othIsDefined);
        } else if (valIsNull) {
          setLow = othIsReflexive && othIsDefined && (retHighest || !othIsNull);
        } else if (valIsSymbol) {
          setLow = othIsReflexive && othIsDefined && !othIsNull && (retHighest || !othIsSymbol);
        } else if (othIsNull || othIsSymbol) {
          setLow = false;
        } else {
          setLow = retHighest ? (computed <= value) : (computed < value);
        }
        if (setLow) {
          low = mid + 1;
        } else {
          high = mid;
        }
      }
      return nativeMin(high, MAX_ARRAY_INDEX);
    }

    /**
     * The base implementation of `_.sortedUniq` and `_.sortedUniqBy` without
     * support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     */
    function baseSortedUniq(array, iteratee) {
      var index = -1,
          length = array.length,
          resIndex = 0,
          result = [];

      while (++index < length) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        if (!index || !eq(computed, seen)) {
          var seen = computed;
          result[resIndex++] = value === 0 ? 0 : value;
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.toNumber` which doesn't ensure correct
     * conversions of binary, hexadecimal, or octal string values.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {number} Returns the number.
     */
    function baseToNumber(value) {
      if (typeof value == 'number') {
        return value;
      }
      if (isSymbol(value)) {
        return NAN;
      }
      return +value;
    }

    /**
     * The base implementation of `_.toString` which doesn't convert nullish
     * values to empty strings.
     *
     * @private
     * @param {*} value The value to process.
     * @returns {string} Returns the string.
     */
    function baseToString(value) {
      // Exit early for strings to avoid a performance hit in some environments.
      if (typeof value == 'string') {
        return value;
      }
      if (isArray(value)) {
        // Recursively convert values (susceptible to call stack limits).
        return arrayMap(value, baseToString) + '';
      }
      if (isSymbol(value)) {
        return symbolToString ? symbolToString.call(value) : '';
      }
      var result = (value + '');
      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
    }

    /**
     * The base implementation of `_.uniqBy` without support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     */
    function baseUniq(array, iteratee, comparator) {
      var index = -1,
          includes = arrayIncludes,
          length = array.length,
          isCommon = true,
          result = [],
          seen = result;

      if (comparator) {
        isCommon = false;
        includes = arrayIncludesWith;
      }
      else if (length >= LARGE_ARRAY_SIZE) {
        var set = iteratee ? null : createSet(array);
        if (set) {
          return setToArray(set);
        }
        isCommon = false;
        includes = cacheHas;
        seen = new SetCache;
      }
      else {
        seen = iteratee ? [] : result;
      }
      outer:
      while (++index < length) {
        var value = array[index],
            computed = iteratee ? iteratee(value) : value;

        value = (comparator || value !== 0) ? value : 0;
        if (isCommon && computed === computed) {
          var seenIndex = seen.length;
          while (seenIndex--) {
            if (seen[seenIndex] === computed) {
              continue outer;
            }
          }
          if (iteratee) {
            seen.push(computed);
          }
          result.push(value);
        }
        else if (!includes(seen, computed, comparator)) {
          if (seen !== result) {
            seen.push(computed);
          }
          result.push(value);
        }
      }
      return result;
    }

    /**
     * The base implementation of `_.unset`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The property path to unset.
     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
     */
    function baseUnset(object, path) {
      path = castPath(path, object);
      object = parent(object, path);
      return object == null || delete object[toKey(last(path))];
    }

    /**
     * The base implementation of `_.update`.
     *
     * @private
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to update.
     * @param {Function} updater The function to produce the updated value.
     * @param {Function} [customizer] The function to customize path creation.
     * @returns {Object} Returns `object`.
     */
    function baseUpdate(object, path, updater, customizer) {
      return baseSet(object, path, updater(baseGet(object, path)), customizer);
    }

    /**
     * The base implementation of methods like `_.dropWhile` and `_.takeWhile`
     * without support for iteratee shorthands.
     *
     * @private
     * @param {Array} array The array to query.
     * @param {Function} predicate The function invoked per iteration.
     * @param {boolean} [isDrop] Specify dropping elements instead of taking them.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Array} Returns the slice of `array`.
     */
    function baseWhile(array, predicate, isDrop, fromRight) {
      var length = array.length,
          index = fromRight ? length : -1;

      while ((fromRight ? index-- : ++index < length) &&
        predicate(array[index], index, array)) {}

      return isDrop
        ? baseSlice(array, (fromRight ? 0 : index), (fromRight ? index + 1 : length))
        : baseSlice(array, (fromRight ? index + 1 : 0), (fromRight ? length : index));
    }

    /**
     * The base implementation of `wrapperValue` which returns the result of
     * performing a sequence of actions on the unwrapped `value`, where each
     * successive action is supplied the return value of the previous.
     *
     * @private
     * @param {*} value The unwrapped value.
     * @param {Array} actions Actions to perform to resolve the unwrapped value.
     * @returns {*} Returns the resolved value.
     */
    function baseWrapperValue(value, actions) {
      var result = value;
      if (result instanceof LazyWrapper) {
        result = result.value();
      }
      return arrayReduce(actions, function(result, action) {
        return action.func.apply(action.thisArg, arrayPush([result], action.args));
      }, result);
    }

    /**
     * The base implementation of methods like `_.xor`, without support for
     * iteratee shorthands, that accepts an array of arrays to inspect.
     *
     * @private
     * @param {Array} arrays The arrays to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of values.
     */
    function baseXor(arrays, iteratee, comparator) {
      var length = arrays.length;
      if (length < 2) {
        return length ? baseUniq(arrays[0]) : [];
      }
      var index = -1,
          result = Array(length);

      while (++index < length) {
        var array = arrays[index],
            othIndex = -1;

        while (++othIndex < length) {
          if (othIndex != index) {
            result[index] = baseDifference(result[index] || array, arrays[othIndex], iteratee, comparator);
          }
        }
      }
      return baseUniq(baseFlatten(result, 1), iteratee, comparator);
    }

    /**
     * This base implementation of `_.zipObject` which assigns values using `assignFunc`.
     *
     * @private
     * @param {Array} props The property identifiers.
     * @param {Array} values The property values.
     * @param {Function} assignFunc The function to assign values.
     * @returns {Object} Returns the new object.
     */
    function baseZipObject(props, values, assignFunc) {
      var index = -1,
          length = props.length,
          valsLength = values.length,
          result = {};

      while (++index < length) {
        var value = index < valsLength ? values[index] : undefined;
        assignFunc(result, props[index], value);
      }
      return result;
    }

    /**
     * Casts `value` to an empty array if it's not an array like object.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {Array|Object} Returns the cast array-like object.
     */
    function castArrayLikeObject(value) {
      return isArrayLikeObject(value) ? value : [];
    }

    /**
     * Casts `value` to `identity` if it's not a function.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {Function} Returns cast function.
     */
    function castFunction(value) {
      return typeof value == 'function' ? value : identity;
    }

    /**
     * Casts `value` to a path array if it's not one.
     *
     * @private
     * @param {*} value The value to inspect.
     * @param {Object} [object] The object to query keys on.
     * @returns {Array} Returns the cast property path array.
     */
    function castPath(value, object) {
      if (isArray(value)) {
        return value;
      }
      return isKey(value, object) ? [value] : stringToPath(toString(value));
    }

    /**
     * A `baseRest` alias which can be replaced with `identity` by module
     * replacement plugins.
     *
     * @private
     * @type {Function}
     * @param {Function} func The function to apply a rest parameter to.
     * @returns {Function} Returns the new function.
     */
    var castRest = baseRest;

    /**
     * Casts `array` to a slice if it's needed.
     *
     * @private
     * @param {Array} array The array to inspect.
     * @param {number} start The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the cast slice.
     */
    function castSlice(array, start, end) {
      var length = array.length;
      end = end === undefined ? length : end;
      return (!start && end >= length) ? array : baseSlice(array, start, end);
    }

    /**
     * A simple wrapper around the global [`clearTimeout`](https://mdn.io/clearTimeout).
     *
     * @private
     * @param {number|Object} id The timer id or timeout object of the timer to clear.
     */
    var clearTimeout = ctxClearTimeout || function(id) {
      return root.clearTimeout(id);
    };

    /**
     * Creates a clone of  `buffer`.
     *
     * @private
     * @param {Buffer} buffer The buffer to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Buffer} Returns the cloned buffer.
     */
    function cloneBuffer(buffer, isDeep) {
      if (isDeep) {
        return buffer.slice();
      }
      var length = buffer.length,
          result = allocUnsafe ? allocUnsafe(length) : new buffer.constructor(length);

      buffer.copy(result);
      return result;
    }

    /**
     * Creates a clone of `arrayBuffer`.
     *
     * @private
     * @param {ArrayBuffer} arrayBuffer The array buffer to clone.
     * @returns {ArrayBuffer} Returns the cloned array buffer.
     */
    function cloneArrayBuffer(arrayBuffer) {
      var result = new arrayBuffer.constructor(arrayBuffer.byteLength);
      new Uint8Array(result).set(new Uint8Array(arrayBuffer));
      return result;
    }

    /**
     * Creates a clone of `dataView`.
     *
     * @private
     * @param {Object} dataView The data view to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned data view.
     */
    function cloneDataView(dataView, isDeep) {
      var buffer = isDeep ? cloneArrayBuffer(dataView.buffer) : dataView.buffer;
      return new dataView.constructor(buffer, dataView.byteOffset, dataView.byteLength);
    }

    /**
     * Creates a clone of `regexp`.
     *
     * @private
     * @param {Object} regexp The regexp to clone.
     * @returns {Object} Returns the cloned regexp.
     */
    function cloneRegExp(regexp) {
      var result = new regexp.constructor(regexp.source, reFlags.exec(regexp));
      result.lastIndex = regexp.lastIndex;
      return result;
    }

    /**
     * Creates a clone of the `symbol` object.
     *
     * @private
     * @param {Object} symbol The symbol object to clone.
     * @returns {Object} Returns the cloned symbol object.
     */
    function cloneSymbol(symbol) {
      return symbolValueOf ? Object(symbolValueOf.call(symbol)) : {};
    }

    /**
     * Creates a clone of `typedArray`.
     *
     * @private
     * @param {Object} typedArray The typed array to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the cloned typed array.
     */
    function cloneTypedArray(typedArray, isDeep) {
      var buffer = isDeep ? cloneArrayBuffer(typedArray.buffer) : typedArray.buffer;
      return new typedArray.constructor(buffer, typedArray.byteOffset, typedArray.length);
    }

    /**
     * Compares values to sort them in ascending order.
     *
     * @private
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {number} Returns the sort order indicator for `value`.
     */
    function compareAscending(value, other) {
      if (value !== other) {
        var valIsDefined = value !== undefined,
            valIsNull = value === null,
            valIsReflexive = value === value,
            valIsSymbol = isSymbol(value);

        var othIsDefined = other !== undefined,
            othIsNull = other === null,
            othIsReflexive = other === other,
            othIsSymbol = isSymbol(other);

        if ((!othIsNull && !othIsSymbol && !valIsSymbol && value > other) ||
            (valIsSymbol && othIsDefined && othIsReflexive && !othIsNull && !othIsSymbol) ||
            (valIsNull && othIsDefined && othIsReflexive) ||
            (!valIsDefined && othIsReflexive) ||
            !valIsReflexive) {
          return 1;
        }
        if ((!valIsNull && !valIsSymbol && !othIsSymbol && value < other) ||
            (othIsSymbol && valIsDefined && valIsReflexive && !valIsNull && !valIsSymbol) ||
            (othIsNull && valIsDefined && valIsReflexive) ||
            (!othIsDefined && valIsReflexive) ||
            !othIsReflexive) {
          return -1;
        }
      }
      return 0;
    }

    /**
     * Used by `_.orderBy` to compare multiple properties of a value to another
     * and stable sort them.
     *
     * If `orders` is unspecified, all values are sorted in ascending order. Otherwise,
     * specify an order of "desc" for descending or "asc" for ascending sort order
     * of corresponding values.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {boolean[]|string[]} orders The order to sort by for each property.
     * @returns {number} Returns the sort order indicator for `object`.
     */
    function compareMultiple(object, other, orders) {
      var index = -1,
          objCriteria = object.criteria,
          othCriteria = other.criteria,
          length = objCriteria.length,
          ordersLength = orders.length;

      while (++index < length) {
        var result = compareAscending(objCriteria[index], othCriteria[index]);
        if (result) {
          if (index >= ordersLength) {
            return result;
          }
          var order = orders[index];
          return result * (order == 'desc' ? -1 : 1);
        }
      }
      // Fixes an `Array#sort` bug in the JS engine embedded in Adobe applications
      // that causes it, under certain circumstances, to provide the same value for
      // `object` and `other`. See https://github.com/jashkenas/underscore/pull/1247
      // for more details.
      //
      // This also ensures a stable sort in V8 and other engines.
      // See https://bugs.chromium.org/p/v8/issues/detail?id=90 for more details.
      return object.index - other.index;
    }

    /**
     * Creates an array that is the composition of partially applied arguments,
     * placeholders, and provided arguments into a single array of arguments.
     *
     * @private
     * @param {Array} args The provided arguments.
     * @param {Array} partials The arguments to prepend to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @params {boolean} [isCurried] Specify composing for a curried function.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgs(args, partials, holders, isCurried) {
      var argsIndex = -1,
          argsLength = args.length,
          holdersLength = holders.length,
          leftIndex = -1,
          leftLength = partials.length,
          rangeLength = nativeMax(argsLength - holdersLength, 0),
          result = Array(leftLength + rangeLength),
          isUncurried = !isCurried;

      while (++leftIndex < leftLength) {
        result[leftIndex] = partials[leftIndex];
      }
      while (++argsIndex < holdersLength) {
        if (isUncurried || argsIndex < argsLength) {
          result[holders[argsIndex]] = args[argsIndex];
        }
      }
      while (rangeLength--) {
        result[leftIndex++] = args[argsIndex++];
      }
      return result;
    }

    /**
     * This function is like `composeArgs` except that the arguments composition
     * is tailored for `_.partialRight`.
     *
     * @private
     * @param {Array} args The provided arguments.
     * @param {Array} partials The arguments to append to those provided.
     * @param {Array} holders The `partials` placeholder indexes.
     * @params {boolean} [isCurried] Specify composing for a curried function.
     * @returns {Array} Returns the new array of composed arguments.
     */
    function composeArgsRight(args, partials, holders, isCurried) {
      var argsIndex = -1,
          argsLength = args.length,
          holdersIndex = -1,
          holdersLength = holders.length,
          rightIndex = -1,
          rightLength = partials.length,
          rangeLength = nativeMax(argsLength - holdersLength, 0),
          result = Array(rangeLength + rightLength),
          isUncurried = !isCurried;

      while (++argsIndex < rangeLength) {
        result[argsIndex] = args[argsIndex];
      }
      var offset = argsIndex;
      while (++rightIndex < rightLength) {
        result[offset + rightIndex] = partials[rightIndex];
      }
      while (++holdersIndex < holdersLength) {
        if (isUncurried || argsIndex < argsLength) {
          result[offset + holders[holdersIndex]] = args[argsIndex++];
        }
      }
      return result;
    }

    /**
     * Copies the values of `source` to `array`.
     *
     * @private
     * @param {Array} source The array to copy values from.
     * @param {Array} [array=[]] The array to copy values to.
     * @returns {Array} Returns `array`.
     */
    function copyArray(source, array) {
      var index = -1,
          length = source.length;

      array || (array = Array(length));
      while (++index < length) {
        array[index] = source[index];
      }
      return array;
    }

    /**
     * Copies properties of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy properties from.
     * @param {Array} props The property identifiers to copy.
     * @param {Object} [object={}] The object to copy properties to.
     * @param {Function} [customizer] The function to customize copied values.
     * @returns {Object} Returns `object`.
     */
    function copyObject(source, props, object, customizer) {
      var isNew = !object;
      object || (object = {});

      var index = -1,
          length = props.length;

      while (++index < length) {
        var key = props[index];

        var newValue = customizer
          ? customizer(object[key], source[key], key, object, source)
          : undefined;

        if (newValue === undefined) {
          newValue = source[key];
        }
        if (isNew) {
          baseAssignValue(object, key, newValue);
        } else {
          assignValue(object, key, newValue);
        }
      }
      return object;
    }

    /**
     * Copies own symbols of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy symbols from.
     * @param {Object} [object={}] The object to copy symbols to.
     * @returns {Object} Returns `object`.
     */
    function copySymbols(source, object) {
      return copyObject(source, getSymbols(source), object);
    }

    /**
     * Copies own and inherited symbols of `source` to `object`.
     *
     * @private
     * @param {Object} source The object to copy symbols from.
     * @param {Object} [object={}] The object to copy symbols to.
     * @returns {Object} Returns `object`.
     */
    function copySymbolsIn(source, object) {
      return copyObject(source, getSymbolsIn(source), object);
    }

    /**
     * Creates a function like `_.groupBy`.
     *
     * @private
     * @param {Function} setter The function to set accumulator values.
     * @param {Function} [initializer] The accumulator object initializer.
     * @returns {Function} Returns the new aggregator function.
     */
    function createAggregator(setter, initializer) {
      return function(collection, iteratee) {
        var func = isArray(collection) ? arrayAggregator : baseAggregator,
            accumulator = initializer ? initializer() : {};

        return func(collection, setter, getIteratee(iteratee, 2), accumulator);
      };
    }

    /**
     * Creates a function like `_.assign`.
     *
     * @private
     * @param {Function} assigner The function to assign values.
     * @returns {Function} Returns the new assigner function.
     */
    function createAssigner(assigner) {
      return baseRest(function(object, sources) {
        var index = -1,
            length = sources.length,
            customizer = length > 1 ? sources[length - 1] : undefined,
            guard = length > 2 ? sources[2] : undefined;

        customizer = (assigner.length > 3 && typeof customizer == 'function')
          ? (length--, customizer)
          : undefined;

        if (guard && isIterateeCall(sources[0], sources[1], guard)) {
          customizer = length < 3 ? undefined : customizer;
          length = 1;
        }
        object = Object(object);
        while (++index < length) {
          var source = sources[index];
          if (source) {
            assigner(object, source, index, customizer);
          }
        }
        return object;
      });
    }

    /**
     * Creates a `baseEach` or `baseEachRight` function.
     *
     * @private
     * @param {Function} eachFunc The function to iterate over a collection.
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseEach(eachFunc, fromRight) {
      return function(collection, iteratee) {
        if (collection == null) {
          return collection;
        }
        if (!isArrayLike(collection)) {
          return eachFunc(collection, iteratee);
        }
        var length = collection.length,
            index = fromRight ? length : -1,
            iterable = Object(collection);

        while ((fromRight ? index-- : ++index < length)) {
          if (iteratee(iterable[index], index, iterable) === false) {
            break;
          }
        }
        return collection;
      };
    }

    /**
     * Creates a base function for methods like `_.forIn` and `_.forOwn`.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new base function.
     */
    function createBaseFor(fromRight) {
      return function(object, iteratee, keysFunc) {
        var index = -1,
            iterable = Object(object),
            props = keysFunc(object),
            length = props.length;

        while (length--) {
          var key = props[fromRight ? length : ++index];
          if (iteratee(iterable[key], key, iterable) === false) {
            break;
          }
        }
        return object;
      };
    }

    /**
     * Creates a function that wraps `func` to invoke it with the optional `this`
     * binding of `thisArg`.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createBind(func, bitmask, thisArg) {
      var isBind = bitmask & WRAP_BIND_FLAG,
          Ctor = createCtor(func);

      function wrapper() {
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return fn.apply(isBind ? thisArg : this, arguments);
      }
      return wrapper;
    }

    /**
     * Creates a function like `_.lowerFirst`.
     *
     * @private
     * @param {string} methodName The name of the `String` case method to use.
     * @returns {Function} Returns the new case function.
     */
    function createCaseFirst(methodName) {
      return function(string) {
        string = toString(string);

        var strSymbols = hasUnicode(string)
          ? stringToArray(string)
          : undefined;

        var chr = strSymbols
          ? strSymbols[0]
          : string.charAt(0);

        var trailing = strSymbols
          ? castSlice(strSymbols, 1).join('')
          : string.slice(1);

        return chr[methodName]() + trailing;
      };
    }

    /**
     * Creates a function like `_.camelCase`.
     *
     * @private
     * @param {Function} callback The function to combine each word.
     * @returns {Function} Returns the new compounder function.
     */
    function createCompounder(callback) {
      return function(string) {
        return arrayReduce(words(deburr(string).replace(reApos, '')), callback, '');
      };
    }

    /**
     * Creates a function that produces an instance of `Ctor` regardless of
     * whether it was invoked as part of a `new` expression or by `call` or `apply`.
     *
     * @private
     * @param {Function} Ctor The constructor to wrap.
     * @returns {Function} Returns the new wrapped function.
     */
    function createCtor(Ctor) {
      return function() {
        // Use a `switch` statement to work with class constructors. See
        // http://ecma-international.org/ecma-262/7.0/#sec-ecmascript-function-objects-call-thisargument-argumentslist
        // for more details.
        var args = arguments;
        switch (args.length) {
          case 0: return new Ctor;
          case 1: return new Ctor(args[0]);
          case 2: return new Ctor(args[0], args[1]);
          case 3: return new Ctor(args[0], args[1], args[2]);
          case 4: return new Ctor(args[0], args[1], args[2], args[3]);
          case 5: return new Ctor(args[0], args[1], args[2], args[3], args[4]);
          case 6: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5]);
          case 7: return new Ctor(args[0], args[1], args[2], args[3], args[4], args[5], args[6]);
        }
        var thisBinding = baseCreate(Ctor.prototype),
            result = Ctor.apply(thisBinding, args);

        // Mimic the constructor's `return` behavior.
        // See https://es5.github.io/#x13.2.2 for more details.
        return isObject(result) ? result : thisBinding;
      };
    }

    /**
     * Creates a function that wraps `func` to enable currying.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {number} arity The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createCurry(func, bitmask, arity) {
      var Ctor = createCtor(func);

      function wrapper() {
        var length = arguments.length,
            args = Array(length),
            index = length,
            placeholder = getHolder(wrapper);

        while (index--) {
          args[index] = arguments[index];
        }
        var holders = (length < 3 && args[0] !== placeholder && args[length - 1] !== placeholder)
          ? []
          : replaceHolders(args, placeholder);

        length -= holders.length;
        if (length < arity) {
          return createRecurry(
            func, bitmask, createHybrid, wrapper.placeholder, undefined,
            args, holders, undefined, undefined, arity - length);
        }
        var fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;
        return apply(fn, this, args);
      }
      return wrapper;
    }

    /**
     * Creates a `_.find` or `_.findLast` function.
     *
     * @private
     * @param {Function} findIndexFunc The function to find the collection index.
     * @returns {Function} Returns the new find function.
     */
    function createFind(findIndexFunc) {
      return function(collection, predicate, fromIndex) {
        var iterable = Object(collection);
        if (!isArrayLike(collection)) {
          var iteratee = getIteratee(predicate, 3);
          collection = keys(collection);
          predicate = function(key) { return iteratee(iterable[key], key, iterable); };
        }
        var index = findIndexFunc(collection, predicate, fromIndex);
        return index > -1 ? iterable[iteratee ? collection[index] : index] : undefined;
      };
    }

    /**
     * Creates a `_.flow` or `_.flowRight` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new flow function.
     */
    function createFlow(fromRight) {
      return flatRest(function(funcs) {
        var length = funcs.length,
            index = length,
            prereq = LodashWrapper.prototype.thru;

        if (fromRight) {
          funcs.reverse();
        }
        while (index--) {
          var func = funcs[index];
          if (typeof func != 'function') {
            throw new TypeError(FUNC_ERROR_TEXT);
          }
          if (prereq && !wrapper && getFuncName(func) == 'wrapper') {
            var wrapper = new LodashWrapper([], true);
          }
        }
        index = wrapper ? index : length;
        while (++index < length) {
          func = funcs[index];

          var funcName = getFuncName(func),
              data = funcName == 'wrapper' ? getData(func) : undefined;

          if (data && isLaziable(data[0]) &&
                data[1] == (WRAP_ARY_FLAG | WRAP_CURRY_FLAG | WRAP_PARTIAL_FLAG | WRAP_REARG_FLAG) &&
                !data[4].length && data[9] == 1
              ) {
            wrapper = wrapper[getFuncName(data[0])].apply(wrapper, data[3]);
          } else {
            wrapper = (func.length == 1 && isLaziable(func))
              ? wrapper[funcName]()
              : wrapper.thru(func);
          }
        }
        return function() {
          var args = arguments,
              value = args[0];

          if (wrapper && args.length == 1 && isArray(value)) {
            return wrapper.plant(value).value();
          }
          var index = 0,
              result = length ? funcs[index].apply(this, args) : value;

          while (++index < length) {
            result = funcs[index].call(this, result);
          }
          return result;
        };
      });
    }

    /**
     * Creates a function that wraps `func` to invoke it with optional `this`
     * binding of `thisArg`, partial application, and currying.
     *
     * @private
     * @param {Function|string} func The function or method name to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to prepend to those provided to
     *  the new function.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [partialsRight] The arguments to append to those provided
     *  to the new function.
     * @param {Array} [holdersRight] The `partialsRight` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createHybrid(func, bitmask, thisArg, partials, holders, partialsRight, holdersRight, argPos, ary, arity) {
      var isAry = bitmask & WRAP_ARY_FLAG,
          isBind = bitmask & WRAP_BIND_FLAG,
          isBindKey = bitmask & WRAP_BIND_KEY_FLAG,
          isCurried = bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG),
          isFlip = bitmask & WRAP_FLIP_FLAG,
          Ctor = isBindKey ? undefined : createCtor(func);

      function wrapper() {
        var length = arguments.length,
            args = Array(length),
            index = length;

        while (index--) {
          args[index] = arguments[index];
        }
        if (isCurried) {
          var placeholder = getHolder(wrapper),
              holdersCount = countHolders(args, placeholder);
        }
        if (partials) {
          args = composeArgs(args, partials, holders, isCurried);
        }
        if (partialsRight) {
          args = composeArgsRight(args, partialsRight, holdersRight, isCurried);
        }
        length -= holdersCount;
        if (isCurried && length < arity) {
          var newHolders = replaceHolders(args, placeholder);
          return createRecurry(
            func, bitmask, createHybrid, wrapper.placeholder, thisArg,
            args, newHolders, argPos, ary, arity - length
          );
        }
        var thisBinding = isBind ? thisArg : this,
            fn = isBindKey ? thisBinding[func] : func;

        length = args.length;
        if (argPos) {
          args = reorder(args, argPos);
        } else if (isFlip && length > 1) {
          args.reverse();
        }
        if (isAry && ary < length) {
          args.length = ary;
        }
        if (this && this !== root && this instanceof wrapper) {
          fn = Ctor || createCtor(fn);
        }
        return fn.apply(thisBinding, args);
      }
      return wrapper;
    }

    /**
     * Creates a function like `_.invertBy`.
     *
     * @private
     * @param {Function} setter The function to set accumulator values.
     * @param {Function} toIteratee The function to resolve iteratees.
     * @returns {Function} Returns the new inverter function.
     */
    function createInverter(setter, toIteratee) {
      return function(object, iteratee) {
        return baseInverter(object, setter, toIteratee(iteratee), {});
      };
    }

    /**
     * Creates a function that performs a mathematical operation on two values.
     *
     * @private
     * @param {Function} operator The function to perform the operation.
     * @param {number} [defaultValue] The value used for `undefined` arguments.
     * @returns {Function} Returns the new mathematical operation function.
     */
    function createMathOperation(operator, defaultValue) {
      return function(value, other) {
        var result;
        if (value === undefined && other === undefined) {
          return defaultValue;
        }
        if (value !== undefined) {
          result = value;
        }
        if (other !== undefined) {
          if (result === undefined) {
            return other;
          }
          if (typeof value == 'string' || typeof other == 'string') {
            value = baseToString(value);
            other = baseToString(other);
          } else {
            value = baseToNumber(value);
            other = baseToNumber(other);
          }
          result = operator(value, other);
        }
        return result;
      };
    }

    /**
     * Creates a function like `_.over`.
     *
     * @private
     * @param {Function} arrayFunc The function to iterate over iteratees.
     * @returns {Function} Returns the new over function.
     */
    function createOver(arrayFunc) {
      return flatRest(function(iteratees) {
        iteratees = arrayMap(iteratees, baseUnary(getIteratee()));
        return baseRest(function(args) {
          var thisArg = this;
          return arrayFunc(iteratees, function(iteratee) {
            return apply(iteratee, thisArg, args);
          });
        });
      });
    }

    /**
     * Creates the padding for `string` based on `length`. The `chars` string
     * is truncated if the number of characters exceeds `length`.
     *
     * @private
     * @param {number} length The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padding for `string`.
     */
    function createPadding(length, chars) {
      chars = chars === undefined ? ' ' : baseToString(chars);

      var charsLength = chars.length;
      if (charsLength < 2) {
        return charsLength ? baseRepeat(chars, length) : chars;
      }
      var result = baseRepeat(chars, nativeCeil(length / stringSize(chars)));
      return hasUnicode(chars)
        ? castSlice(stringToArray(result), 0, length).join('')
        : result.slice(0, length);
    }

    /**
     * Creates a function that wraps `func` to invoke it with the `this` binding
     * of `thisArg` and `partials` prepended to the arguments it receives.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {Array} partials The arguments to prepend to those provided to
     *  the new function.
     * @returns {Function} Returns the new wrapped function.
     */
    function createPartial(func, bitmask, thisArg, partials) {
      var isBind = bitmask & WRAP_BIND_FLAG,
          Ctor = createCtor(func);

      function wrapper() {
        var argsIndex = -1,
            argsLength = arguments.length,
            leftIndex = -1,
            leftLength = partials.length,
            args = Array(leftLength + argsLength),
            fn = (this && this !== root && this instanceof wrapper) ? Ctor : func;

        while (++leftIndex < leftLength) {
          args[leftIndex] = partials[leftIndex];
        }
        while (argsLength--) {
          args[leftIndex++] = arguments[++argsIndex];
        }
        return apply(fn, isBind ? thisArg : this, args);
      }
      return wrapper;
    }

    /**
     * Creates a `_.range` or `_.rangeRight` function.
     *
     * @private
     * @param {boolean} [fromRight] Specify iterating from right to left.
     * @returns {Function} Returns the new range function.
     */
    function createRange(fromRight) {
      return function(start, end, step) {
        if (step && typeof step != 'number' && isIterateeCall(start, end, step)) {
          end = step = undefined;
        }
        // Ensure the sign of `-0` is preserved.
        start = toFinite(start);
        if (end === undefined) {
          end = start;
          start = 0;
        } else {
          end = toFinite(end);
        }
        step = step === undefined ? (start < end ? 1 : -1) : toFinite(step);
        return baseRange(start, end, step, fromRight);
      };
    }

    /**
     * Creates a function that performs a relational operation on two values.
     *
     * @private
     * @param {Function} operator The function to perform the operation.
     * @returns {Function} Returns the new relational operation function.
     */
    function createRelationalOperation(operator) {
      return function(value, other) {
        if (!(typeof value == 'string' && typeof other == 'string')) {
          value = toNumber(value);
          other = toNumber(other);
        }
        return operator(value, other);
      };
    }

    /**
     * Creates a function that wraps `func` to continue currying.
     *
     * @private
     * @param {Function} func The function to wrap.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @param {Function} wrapFunc The function to create the `func` wrapper.
     * @param {*} placeholder The placeholder value.
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to prepend to those provided to
     *  the new function.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createRecurry(func, bitmask, wrapFunc, placeholder, thisArg, partials, holders, argPos, ary, arity) {
      var isCurry = bitmask & WRAP_CURRY_FLAG,
          newHolders = isCurry ? holders : undefined,
          newHoldersRight = isCurry ? undefined : holders,
          newPartials = isCurry ? partials : undefined,
          newPartialsRight = isCurry ? undefined : partials;

      bitmask |= (isCurry ? WRAP_PARTIAL_FLAG : WRAP_PARTIAL_RIGHT_FLAG);
      bitmask &= ~(isCurry ? WRAP_PARTIAL_RIGHT_FLAG : WRAP_PARTIAL_FLAG);

      if (!(bitmask & WRAP_CURRY_BOUND_FLAG)) {
        bitmask &= ~(WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG);
      }
      var newData = [
        func, bitmask, thisArg, newPartials, newHolders, newPartialsRight,
        newHoldersRight, argPos, ary, arity
      ];

      var result = wrapFunc.apply(undefined, newData);
      if (isLaziable(func)) {
        setData(result, newData);
      }
      result.placeholder = placeholder;
      return setWrapToString(result, func, bitmask);
    }

    /**
     * Creates a function like `_.round`.
     *
     * @private
     * @param {string} methodName The name of the `Math` method to use when rounding.
     * @returns {Function} Returns the new round function.
     */
    function createRound(methodName) {
      var func = Math[methodName];
      return function(number, precision) {
        number = toNumber(number);
        precision = precision == null ? 0 : nativeMin(toInteger(precision), 292);
        if (precision && nativeIsFinite(number)) {
          // Shift with exponential notation to avoid floating-point issues.
          // See [MDN](https://mdn.io/round#Examples) for more details.
          var pair = (toString(number) + 'e').split('e'),
              value = func(pair[0] + 'e' + (+pair[1] + precision));

          pair = (toString(value) + 'e').split('e');
          return +(pair[0] + 'e' + (+pair[1] - precision));
        }
        return func(number);
      };
    }

    /**
     * Creates a set object of `values`.
     *
     * @private
     * @param {Array} values The values to add to the set.
     * @returns {Object} Returns the new set.
     */
    var createSet = !(Set && (1 / setToArray(new Set([,-0]))[1]) == INFINITY) ? noop : function(values) {
      return new Set(values);
    };

    /**
     * Creates a `_.toPairs` or `_.toPairsIn` function.
     *
     * @private
     * @param {Function} keysFunc The function to get the keys of a given object.
     * @returns {Function} Returns the new pairs function.
     */
    function createToPairs(keysFunc) {
      return function(object) {
        var tag = getTag(object);
        if (tag == mapTag) {
          return mapToArray(object);
        }
        if (tag == setTag) {
          return setToPairs(object);
        }
        return baseToPairs(object, keysFunc(object));
      };
    }

    /**
     * Creates a function that either curries or invokes `func` with optional
     * `this` binding and partially applied arguments.
     *
     * @private
     * @param {Function|string} func The function or method name to wrap.
     * @param {number} bitmask The bitmask flags.
     *    1 - `_.bind`
     *    2 - `_.bindKey`
     *    4 - `_.curry` or `_.curryRight` of a bound function
     *    8 - `_.curry`
     *   16 - `_.curryRight`
     *   32 - `_.partial`
     *   64 - `_.partialRight`
     *  128 - `_.rearg`
     *  256 - `_.ary`
     *  512 - `_.flip`
     * @param {*} [thisArg] The `this` binding of `func`.
     * @param {Array} [partials] The arguments to be partially applied.
     * @param {Array} [holders] The `partials` placeholder indexes.
     * @param {Array} [argPos] The argument positions of the new function.
     * @param {number} [ary] The arity cap of `func`.
     * @param {number} [arity] The arity of `func`.
     * @returns {Function} Returns the new wrapped function.
     */
    function createWrap(func, bitmask, thisArg, partials, holders, argPos, ary, arity) {
      var isBindKey = bitmask & WRAP_BIND_KEY_FLAG;
      if (!isBindKey && typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var length = partials ? partials.length : 0;
      if (!length) {
        bitmask &= ~(WRAP_PARTIAL_FLAG | WRAP_PARTIAL_RIGHT_FLAG);
        partials = holders = undefined;
      }
      ary = ary === undefined ? ary : nativeMax(toInteger(ary), 0);
      arity = arity === undefined ? arity : toInteger(arity);
      length -= holders ? holders.length : 0;

      if (bitmask & WRAP_PARTIAL_RIGHT_FLAG) {
        var partialsRight = partials,
            holdersRight = holders;

        partials = holders = undefined;
      }
      var data = isBindKey ? undefined : getData(func);

      var newData = [
        func, bitmask, thisArg, partials, holders, partialsRight, holdersRight,
        argPos, ary, arity
      ];

      if (data) {
        mergeData(newData, data);
      }
      func = newData[0];
      bitmask = newData[1];
      thisArg = newData[2];
      partials = newData[3];
      holders = newData[4];
      arity = newData[9] = newData[9] === undefined
        ? (isBindKey ? 0 : func.length)
        : nativeMax(newData[9] - length, 0);

      if (!arity && bitmask & (WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG)) {
        bitmask &= ~(WRAP_CURRY_FLAG | WRAP_CURRY_RIGHT_FLAG);
      }
      if (!bitmask || bitmask == WRAP_BIND_FLAG) {
        var result = createBind(func, bitmask, thisArg);
      } else if (bitmask == WRAP_CURRY_FLAG || bitmask == WRAP_CURRY_RIGHT_FLAG) {
        result = createCurry(func, bitmask, arity);
      } else if ((bitmask == WRAP_PARTIAL_FLAG || bitmask == (WRAP_BIND_FLAG | WRAP_PARTIAL_FLAG)) && !holders.length) {
        result = createPartial(func, bitmask, thisArg, partials);
      } else {
        result = createHybrid.apply(undefined, newData);
      }
      var setter = data ? baseSetData : setData;
      return setWrapToString(setter(result, newData), func, bitmask);
    }

    /**
     * Used by `_.defaults` to customize its `_.assignIn` use to assign properties
     * of source objects to the destination object for all destination properties
     * that resolve to `undefined`.
     *
     * @private
     * @param {*} objValue The destination value.
     * @param {*} srcValue The source value.
     * @param {string} key The key of the property to assign.
     * @param {Object} object The parent object of `objValue`.
     * @returns {*} Returns the value to assign.
     */
    function customDefaultsAssignIn(objValue, srcValue, key, object) {
      if (objValue === undefined ||
          (eq(objValue, objectProto[key]) && !hasOwnProperty.call(object, key))) {
        return srcValue;
      }
      return objValue;
    }

    /**
     * Used by `_.defaultsDeep` to customize its `_.merge` use to merge source
     * objects into destination objects that are passed thru.
     *
     * @private
     * @param {*} objValue The destination value.
     * @param {*} srcValue The source value.
     * @param {string} key The key of the property to merge.
     * @param {Object} object The parent object of `objValue`.
     * @param {Object} source The parent object of `srcValue`.
     * @param {Object} [stack] Tracks traversed source values and their merged
     *  counterparts.
     * @returns {*} Returns the value to assign.
     */
    function customDefaultsMerge(objValue, srcValue, key, object, source, stack) {
      if (isObject(objValue) && isObject(srcValue)) {
        // Recursively merge objects and arrays (susceptible to call stack limits).
        stack.set(srcValue, objValue);
        baseMerge(objValue, srcValue, undefined, customDefaultsMerge, stack);
        stack['delete'](srcValue);
      }
      return objValue;
    }

    /**
     * Used by `_.omit` to customize its `_.cloneDeep` use to only clone plain
     * objects.
     *
     * @private
     * @param {*} value The value to inspect.
     * @param {string} key The key of the property to inspect.
     * @returns {*} Returns the uncloned value or `undefined` to defer cloning to `_.cloneDeep`.
     */
    function customOmitClone(value) {
      return isPlainObject(value) ? undefined : value;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for arrays with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Array} array The array to compare.
     * @param {Array} other The other array to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `array` and `other` objects.
     * @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
     */
    function equalArrays(array, other, bitmask, customizer, equalFunc, stack) {
      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
          arrLength = array.length,
          othLength = other.length;

      if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
        return false;
      }
      // Check that cyclic values are equal.
      var arrStacked = stack.get(array);
      var othStacked = stack.get(other);
      if (arrStacked && othStacked) {
        return arrStacked == other && othStacked == array;
      }
      var index = -1,
          result = true,
          seen = (bitmask & COMPARE_UNORDERED_FLAG) ? new SetCache : undefined;

      stack.set(array, other);
      stack.set(other, array);

      // Ignore non-index properties.
      while (++index < arrLength) {
        var arrValue = array[index],
            othValue = other[index];

        if (customizer) {
          var compared = isPartial
            ? customizer(othValue, arrValue, index, other, array, stack)
            : customizer(arrValue, othValue, index, array, other, stack);
        }
        if (compared !== undefined) {
          if (compared) {
            continue;
          }
          result = false;
          break;
        }
        // Recursively compare arrays (susceptible to call stack limits).
        if (seen) {
          if (!arraySome(other, function(othValue, othIndex) {
                if (!cacheHas(seen, othIndex) &&
                    (arrValue === othValue || equalFunc(arrValue, othValue, bitmask, customizer, stack))) {
                  return seen.push(othIndex);
                }
              })) {
            result = false;
            break;
          }
        } else if (!(
              arrValue === othValue ||
                equalFunc(arrValue, othValue, bitmask, customizer, stack)
            )) {
          result = false;
          break;
        }
      }
      stack['delete'](array);
      stack['delete'](other);
      return result;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for comparing objects of
     * the same `toStringTag`.
     *
     * **Note:** This function only supports comparing values with tags of
     * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {string} tag The `toStringTag` of the objects to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
      switch (tag) {
        case dataViewTag:
          if ((object.byteLength != other.byteLength) ||
              (object.byteOffset != other.byteOffset)) {
            return false;
          }
          object = object.buffer;
          other = other.buffer;

        case arrayBufferTag:
          if ((object.byteLength != other.byteLength) ||
              !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
            return false;
          }
          return true;

        case boolTag:
        case dateTag:
        case numberTag:
          // Coerce booleans to `1` or `0` and dates to milliseconds.
          // Invalid dates are coerced to `NaN`.
          return eq(+object, +other);

        case errorTag:
          return object.name == other.name && object.message == other.message;

        case regexpTag:
        case stringTag:
          // Coerce regexes to strings and treat strings, primitives and objects,
          // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
          // for more details.
          return object == (other + '');

        case mapTag:
          var convert = mapToArray;

        case setTag:
          var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
          convert || (convert = setToArray);

          if (object.size != other.size && !isPartial) {
            return false;
          }
          // Assume cyclic values are equal.
          var stacked = stack.get(object);
          if (stacked) {
            return stacked == other;
          }
          bitmask |= COMPARE_UNORDERED_FLAG;

          // Recursively compare objects (susceptible to call stack limits).
          stack.set(object, other);
          var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
          stack['delete'](object);
          return result;

        case symbolTag:
          if (symbolValueOf) {
            return symbolValueOf.call(object) == symbolValueOf.call(other);
          }
      }
      return false;
    }

    /**
     * A specialized version of `baseIsEqualDeep` for objects with support for
     * partial deep comparisons.
     *
     * @private
     * @param {Object} object The object to compare.
     * @param {Object} other The other object to compare.
     * @param {number} bitmask The bitmask flags. See `baseIsEqual` for more details.
     * @param {Function} customizer The function to customize comparisons.
     * @param {Function} equalFunc The function to determine equivalents of values.
     * @param {Object} stack Tracks traversed `object` and `other` objects.
     * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
     */
    function equalObjects(object, other, bitmask, customizer, equalFunc, stack) {
      var isPartial = bitmask & COMPARE_PARTIAL_FLAG,
          objProps = getAllKeys(object),
          objLength = objProps.length,
          othProps = getAllKeys(other),
          othLength = othProps.length;

      if (objLength != othLength && !isPartial) {
        return false;
      }
      var index = objLength;
      while (index--) {
        var key = objProps[index];
        if (!(isPartial ? key in other : hasOwnProperty.call(other, key))) {
          return false;
        }
      }
      // Check that cyclic values are equal.
      var objStacked = stack.get(object);
      var othStacked = stack.get(other);
      if (objStacked && othStacked) {
        return objStacked == other && othStacked == object;
      }
      var result = true;
      stack.set(object, other);
      stack.set(other, object);

      var skipCtor = isPartial;
      while (++index < objLength) {
        key = objProps[index];
        var objValue = object[key],
            othValue = other[key];

        if (customizer) {
          var compared = isPartial
            ? customizer(othValue, objValue, key, other, object, stack)
            : customizer(objValue, othValue, key, object, other, stack);
        }
        // Recursively compare objects (susceptible to call stack limits).
        if (!(compared === undefined
              ? (objValue === othValue || equalFunc(objValue, othValue, bitmask, customizer, stack))
              : compared
            )) {
          result = false;
          break;
        }
        skipCtor || (skipCtor = key == 'constructor');
      }
      if (result && !skipCtor) {
        var objCtor = object.constructor,
            othCtor = other.constructor;

        // Non `Object` object instances with different constructors are not equal.
        if (objCtor != othCtor &&
            ('constructor' in object && 'constructor' in other) &&
            !(typeof objCtor == 'function' && objCtor instanceof objCtor &&
              typeof othCtor == 'function' && othCtor instanceof othCtor)) {
          result = false;
        }
      }
      stack['delete'](object);
      stack['delete'](other);
      return result;
    }

    /**
     * A specialized version of `baseRest` which flattens the rest array.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @returns {Function} Returns the new function.
     */
    function flatRest(func) {
      return setToString(overRest(func, undefined, flatten), func + '');
    }

    /**
     * Creates an array of own enumerable property names and symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function getAllKeys(object) {
      return baseGetAllKeys(object, keys, getSymbols);
    }

    /**
     * Creates an array of own and inherited enumerable property names and
     * symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names and symbols.
     */
    function getAllKeysIn(object) {
      return baseGetAllKeys(object, keysIn, getSymbolsIn);
    }

    /**
     * Gets metadata for `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {*} Returns the metadata for `func`.
     */
    var getData = !metaMap ? noop : function(func) {
      return metaMap.get(func);
    };

    /**
     * Gets the name of `func`.
     *
     * @private
     * @param {Function} func The function to query.
     * @returns {string} Returns the function name.
     */
    function getFuncName(func) {
      var result = (func.name + ''),
          array = realNames[result],
          length = hasOwnProperty.call(realNames, result) ? array.length : 0;

      while (length--) {
        var data = array[length],
            otherFunc = data.func;
        if (otherFunc == null || otherFunc == func) {
          return data.name;
        }
      }
      return result;
    }

    /**
     * Gets the argument placeholder value for `func`.
     *
     * @private
     * @param {Function} func The function to inspect.
     * @returns {*} Returns the placeholder value.
     */
    function getHolder(func) {
      var object = hasOwnProperty.call(lodash, 'placeholder') ? lodash : func;
      return object.placeholder;
    }

    /**
     * Gets the appropriate "iteratee" function. If `_.iteratee` is customized,
     * this function returns the custom method, otherwise it returns `baseIteratee`.
     * If arguments are provided, the chosen function is invoked with them and
     * its result is returned.
     *
     * @private
     * @param {*} [value] The value to convert to an iteratee.
     * @param {number} [arity] The arity of the created iteratee.
     * @returns {Function} Returns the chosen function or its result.
     */
    function getIteratee() {
      var result = lodash.iteratee || iteratee;
      result = result === iteratee ? baseIteratee : result;
      return arguments.length ? result(arguments[0], arguments[1]) : result;
    }

    /**
     * Gets the data for `map`.
     *
     * @private
     * @param {Object} map The map to query.
     * @param {string} key The reference key.
     * @returns {*} Returns the map data.
     */
    function getMapData(map, key) {
      var data = map.__data__;
      return isKeyable(key)
        ? data[typeof key == 'string' ? 'string' : 'hash']
        : data.map;
    }

    /**
     * Gets the property names, values, and compare flags of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the match data of `object`.
     */
    function getMatchData(object) {
      var result = keys(object),
          length = result.length;

      while (length--) {
        var key = result[length],
            value = object[key];

        result[length] = [key, value, isStrictComparable(value)];
      }
      return result;
    }

    /**
     * Gets the native function at `key` of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {string} key The key of the method to get.
     * @returns {*} Returns the function if it's native, else `undefined`.
     */
    function getNative(object, key) {
      var value = getValue(object, key);
      return baseIsNative(value) ? value : undefined;
    }

    /**
     * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the raw `toStringTag`.
     */
    function getRawTag(value) {
      var isOwn = hasOwnProperty.call(value, symToStringTag),
          tag = value[symToStringTag];

      try {
        value[symToStringTag] = undefined;
        var unmasked = true;
      } catch (e) {}

      var result = nativeObjectToString.call(value);
      if (unmasked) {
        if (isOwn) {
          value[symToStringTag] = tag;
        } else {
          delete value[symToStringTag];
        }
      }
      return result;
    }

    /**
     * Creates an array of the own enumerable symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of symbols.
     */
    var getSymbols = !nativeGetSymbols ? stubArray : function(object) {
      if (object == null) {
        return [];
      }
      object = Object(object);
      return arrayFilter(nativeGetSymbols(object), function(symbol) {
        return propertyIsEnumerable.call(object, symbol);
      });
    };

    /**
     * Creates an array of the own and inherited enumerable symbols of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of symbols.
     */
    var getSymbolsIn = !nativeGetSymbols ? stubArray : function(object) {
      var result = [];
      while (object) {
        arrayPush(result, getSymbols(object));
        object = getPrototype(object);
      }
      return result;
    };

    /**
     * Gets the `toStringTag` of `value`.
     *
     * @private
     * @param {*} value The value to query.
     * @returns {string} Returns the `toStringTag`.
     */
    var getTag = baseGetTag;

    // Fallback for data views, maps, sets, and weak maps in IE 11 and promises in Node.js < 6.
    if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
        (Map && getTag(new Map) != mapTag) ||
        (Promise && getTag(Promise.resolve()) != promiseTag) ||
        (Set && getTag(new Set) != setTag) ||
        (WeakMap && getTag(new WeakMap) != weakMapTag)) {
      getTag = function(value) {
        var result = baseGetTag(value),
            Ctor = result == objectTag ? value.constructor : undefined,
            ctorString = Ctor ? toSource(Ctor) : '';

        if (ctorString) {
          switch (ctorString) {
            case dataViewCtorString: return dataViewTag;
            case mapCtorString: return mapTag;
            case promiseCtorString: return promiseTag;
            case setCtorString: return setTag;
            case weakMapCtorString: return weakMapTag;
          }
        }
        return result;
      };
    }

    /**
     * Gets the view, applying any `transforms` to the `start` and `end` positions.
     *
     * @private
     * @param {number} start The start of the view.
     * @param {number} end The end of the view.
     * @param {Array} transforms The transformations to apply to the view.
     * @returns {Object} Returns an object containing the `start` and `end`
     *  positions of the view.
     */
    function getView(start, end, transforms) {
      var index = -1,
          length = transforms.length;

      while (++index < length) {
        var data = transforms[index],
            size = data.size;

        switch (data.type) {
          case 'drop':      start += size; break;
          case 'dropRight': end -= size; break;
          case 'take':      end = nativeMin(end, start + size); break;
          case 'takeRight': start = nativeMax(start, end - size); break;
        }
      }
      return { 'start': start, 'end': end };
    }

    /**
     * Extracts wrapper details from the `source` body comment.
     *
     * @private
     * @param {string} source The source to inspect.
     * @returns {Array} Returns the wrapper details.
     */
    function getWrapDetails(source) {
      var match = source.match(reWrapDetails);
      return match ? match[1].split(reSplitDetails) : [];
    }

    /**
     * Checks if `path` exists on `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @param {Function} hasFunc The function to check properties.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     */
    function hasPath(object, path, hasFunc) {
      path = castPath(path, object);

      var index = -1,
          length = path.length,
          result = false;

      while (++index < length) {
        var key = toKey(path[index]);
        if (!(result = object != null && hasFunc(object, key))) {
          break;
        }
        object = object[key];
      }
      if (result || ++index != length) {
        return result;
      }
      length = object == null ? 0 : object.length;
      return !!length && isLength(length) && isIndex(key, length) &&
        (isArray(object) || isArguments(object));
    }

    /**
     * Initializes an array clone.
     *
     * @private
     * @param {Array} array The array to clone.
     * @returns {Array} Returns the initialized clone.
     */
    function initCloneArray(array) {
      var length = array.length,
          result = new array.constructor(length);

      // Add properties assigned by `RegExp#exec`.
      if (length && typeof array[0] == 'string' && hasOwnProperty.call(array, 'index')) {
        result.index = array.index;
        result.input = array.input;
      }
      return result;
    }

    /**
     * Initializes an object clone.
     *
     * @private
     * @param {Object} object The object to clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneObject(object) {
      return (typeof object.constructor == 'function' && !isPrototype(object))
        ? baseCreate(getPrototype(object))
        : {};
    }

    /**
     * Initializes an object clone based on its `toStringTag`.
     *
     * **Note:** This function only supports cloning values with tags of
     * `Boolean`, `Date`, `Error`, `Map`, `Number`, `RegExp`, `Set`, or `String`.
     *
     * @private
     * @param {Object} object The object to clone.
     * @param {string} tag The `toStringTag` of the object to clone.
     * @param {boolean} [isDeep] Specify a deep clone.
     * @returns {Object} Returns the initialized clone.
     */
    function initCloneByTag(object, tag, isDeep) {
      var Ctor = object.constructor;
      switch (tag) {
        case arrayBufferTag:
          return cloneArrayBuffer(object);

        case boolTag:
        case dateTag:
          return new Ctor(+object);

        case dataViewTag:
          return cloneDataView(object, isDeep);

        case float32Tag: case float64Tag:
        case int8Tag: case int16Tag: case int32Tag:
        case uint8Tag: case uint8ClampedTag: case uint16Tag: case uint32Tag:
          return cloneTypedArray(object, isDeep);

        case mapTag:
          return new Ctor;

        case numberTag:
        case stringTag:
          return new Ctor(object);

        case regexpTag:
          return cloneRegExp(object);

        case setTag:
          return new Ctor;

        case symbolTag:
          return cloneSymbol(object);
      }
    }

    /**
     * Inserts wrapper `details` in a comment at the top of the `source` body.
     *
     * @private
     * @param {string} source The source to modify.
     * @returns {Array} details The details to insert.
     * @returns {string} Returns the modified source.
     */
    function insertWrapDetails(source, details) {
      var length = details.length;
      if (!length) {
        return source;
      }
      var lastIndex = length - 1;
      details[lastIndex] = (length > 1 ? '& ' : '') + details[lastIndex];
      details = details.join(length > 2 ? ', ' : ' ');
      return source.replace(reWrapComment, '{\n/* [wrapped with ' + details + '] */\n');
    }

    /**
     * Checks if `value` is a flattenable `arguments` object or array.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is flattenable, else `false`.
     */
    function isFlattenable(value) {
      return isArray(value) || isArguments(value) ||
        !!(spreadableSymbol && value && value[spreadableSymbol]);
    }

    /**
     * Checks if `value` is a valid array-like index.
     *
     * @private
     * @param {*} value The value to check.
     * @param {number} [length=MAX_SAFE_INTEGER] The upper bounds of a valid index.
     * @returns {boolean} Returns `true` if `value` is a valid index, else `false`.
     */
    function isIndex(value, length) {
      var type = typeof value;
      length = length == null ? MAX_SAFE_INTEGER : length;

      return !!length &&
        (type == 'number' ||
          (type != 'symbol' && reIsUint.test(value))) &&
            (value > -1 && value % 1 == 0 && value < length);
    }

    /**
     * Checks if the given arguments are from an iteratee call.
     *
     * @private
     * @param {*} value The potential iteratee value argument.
     * @param {*} index The potential iteratee index or key argument.
     * @param {*} object The potential iteratee object argument.
     * @returns {boolean} Returns `true` if the arguments are from an iteratee call,
     *  else `false`.
     */
    function isIterateeCall(value, index, object) {
      if (!isObject(object)) {
        return false;
      }
      var type = typeof index;
      if (type == 'number'
            ? (isArrayLike(object) && isIndex(index, object.length))
            : (type == 'string' && index in object)
          ) {
        return eq(object[index], value);
      }
      return false;
    }

    /**
     * Checks if `value` is a property name and not a property path.
     *
     * @private
     * @param {*} value The value to check.
     * @param {Object} [object] The object to query keys on.
     * @returns {boolean} Returns `true` if `value` is a property name, else `false`.
     */
    function isKey(value, object) {
      if (isArray(value)) {
        return false;
      }
      var type = typeof value;
      if (type == 'number' || type == 'symbol' || type == 'boolean' ||
          value == null || isSymbol(value)) {
        return true;
      }
      return reIsPlainProp.test(value) || !reIsDeepProp.test(value) ||
        (object != null && value in Object(object));
    }

    /**
     * Checks if `value` is suitable for use as unique object key.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is suitable, else `false`.
     */
    function isKeyable(value) {
      var type = typeof value;
      return (type == 'string' || type == 'number' || type == 'symbol' || type == 'boolean')
        ? (value !== '__proto__')
        : (value === null);
    }

    /**
     * Checks if `func` has a lazy counterpart.
     *
     * @private
     * @param {Function} func The function to check.
     * @returns {boolean} Returns `true` if `func` has a lazy counterpart,
     *  else `false`.
     */
    function isLaziable(func) {
      var funcName = getFuncName(func),
          other = lodash[funcName];

      if (typeof other != 'function' || !(funcName in LazyWrapper.prototype)) {
        return false;
      }
      if (func === other) {
        return true;
      }
      var data = getData(other);
      return !!data && func === data[0];
    }

    /**
     * Checks if `func` has its source masked.
     *
     * @private
     * @param {Function} func The function to check.
     * @returns {boolean} Returns `true` if `func` is masked, else `false`.
     */
    function isMasked(func) {
      return !!maskSrcKey && (maskSrcKey in func);
    }

    /**
     * Checks if `func` is capable of being masked.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `func` is maskable, else `false`.
     */
    var isMaskable = coreJsData ? isFunction : stubFalse;

    /**
     * Checks if `value` is likely a prototype object.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a prototype, else `false`.
     */
    function isPrototype(value) {
      var Ctor = value && value.constructor,
          proto = (typeof Ctor == 'function' && Ctor.prototype) || objectProto;

      return value === proto;
    }

    /**
     * Checks if `value` is suitable for strict equality comparisons, i.e. `===`.
     *
     * @private
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` if suitable for strict
     *  equality comparisons, else `false`.
     */
    function isStrictComparable(value) {
      return value === value && !isObject(value);
    }

    /**
     * A specialized version of `matchesProperty` for source values suitable
     * for strict equality comparisons, i.e. `===`.
     *
     * @private
     * @param {string} key The key of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     */
    function matchesStrictComparable(key, srcValue) {
      return function(object) {
        if (object == null) {
          return false;
        }
        return object[key] === srcValue &&
          (srcValue !== undefined || (key in Object(object)));
      };
    }

    /**
     * A specialized version of `_.memoize` which clears the memoized function's
     * cache when it exceeds `MAX_MEMOIZE_SIZE`.
     *
     * @private
     * @param {Function} func The function to have its output memoized.
     * @returns {Function} Returns the new memoized function.
     */
    function memoizeCapped(func) {
      var result = memoize(func, function(key) {
        if (cache.size === MAX_MEMOIZE_SIZE) {
          cache.clear();
        }
        return key;
      });

      var cache = result.cache;
      return result;
    }

    /**
     * Merges the function metadata of `source` into `data`.
     *
     * Merging metadata reduces the number of wrappers used to invoke a function.
     * This is possible because methods like `_.bind`, `_.curry`, and `_.partial`
     * may be applied regardless of execution order. Methods like `_.ary` and
     * `_.rearg` modify function arguments, making the order in which they are
     * executed important, preventing the merging of metadata. However, we make
     * an exception for a safe combined case where curried functions have `_.ary`
     * and or `_.rearg` applied.
     *
     * @private
     * @param {Array} data The destination metadata.
     * @param {Array} source The source metadata.
     * @returns {Array} Returns `data`.
     */
    function mergeData(data, source) {
      var bitmask = data[1],
          srcBitmask = source[1],
          newBitmask = bitmask | srcBitmask,
          isCommon = newBitmask < (WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG | WRAP_ARY_FLAG);

      var isCombo =
        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_CURRY_FLAG)) ||
        ((srcBitmask == WRAP_ARY_FLAG) && (bitmask == WRAP_REARG_FLAG) && (data[7].length <= source[8])) ||
        ((srcBitmask == (WRAP_ARY_FLAG | WRAP_REARG_FLAG)) && (source[7].length <= source[8]) && (bitmask == WRAP_CURRY_FLAG));

      // Exit early if metadata can't be merged.
      if (!(isCommon || isCombo)) {
        return data;
      }
      // Use source `thisArg` if available.
      if (srcBitmask & WRAP_BIND_FLAG) {
        data[2] = source[2];
        // Set when currying a bound function.
        newBitmask |= bitmask & WRAP_BIND_FLAG ? 0 : WRAP_CURRY_BOUND_FLAG;
      }
      // Compose partial arguments.
      var value = source[3];
      if (value) {
        var partials = data[3];
        data[3] = partials ? composeArgs(partials, value, source[4]) : value;
        data[4] = partials ? replaceHolders(data[3], PLACEHOLDER) : source[4];
      }
      // Compose partial right arguments.
      value = source[5];
      if (value) {
        partials = data[5];
        data[5] = partials ? composeArgsRight(partials, value, source[6]) : value;
        data[6] = partials ? replaceHolders(data[5], PLACEHOLDER) : source[6];
      }
      // Use source `argPos` if available.
      value = source[7];
      if (value) {
        data[7] = value;
      }
      // Use source `ary` if it's smaller.
      if (srcBitmask & WRAP_ARY_FLAG) {
        data[8] = data[8] == null ? source[8] : nativeMin(data[8], source[8]);
      }
      // Use source `arity` if one is not provided.
      if (data[9] == null) {
        data[9] = source[9];
      }
      // Use source `func` and merge bitmasks.
      data[0] = source[0];
      data[1] = newBitmask;

      return data;
    }

    /**
     * This function is like
     * [`Object.keys`](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
     * except that it includes inherited enumerable properties.
     *
     * @private
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     */
    function nativeKeysIn(object) {
      var result = [];
      if (object != null) {
        for (var key in Object(object)) {
          result.push(key);
        }
      }
      return result;
    }

    /**
     * Converts `value` to a string using `Object.prototype.toString`.
     *
     * @private
     * @param {*} value The value to convert.
     * @returns {string} Returns the converted string.
     */
    function objectToString(value) {
      return nativeObjectToString.call(value);
    }

    /**
     * A specialized version of `baseRest` which transforms the rest array.
     *
     * @private
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @param {Function} transform The rest array transform.
     * @returns {Function} Returns the new function.
     */
    function overRest(func, start, transform) {
      start = nativeMax(start === undefined ? (func.length - 1) : start, 0);
      return function() {
        var args = arguments,
            index = -1,
            length = nativeMax(args.length - start, 0),
            array = Array(length);

        while (++index < length) {
          array[index] = args[start + index];
        }
        index = -1;
        var otherArgs = Array(start + 1);
        while (++index < start) {
          otherArgs[index] = args[index];
        }
        otherArgs[start] = transform(array);
        return apply(func, this, otherArgs);
      };
    }

    /**
     * Gets the parent value at `path` of `object`.
     *
     * @private
     * @param {Object} object The object to query.
     * @param {Array} path The path to get the parent value of.
     * @returns {*} Returns the parent value.
     */
    function parent(object, path) {
      return path.length < 2 ? object : baseGet(object, baseSlice(path, 0, -1));
    }

    /**
     * Reorder `array` according to the specified indexes where the element at
     * the first index is assigned as the first element, the element at
     * the second index is assigned as the second element, and so on.
     *
     * @private
     * @param {Array} array The array to reorder.
     * @param {Array} indexes The arranged array indexes.
     * @returns {Array} Returns `array`.
     */
    function reorder(array, indexes) {
      var arrLength = array.length,
          length = nativeMin(indexes.length, arrLength),
          oldArray = copyArray(array);

      while (length--) {
        var index = indexes[length];
        array[length] = isIndex(index, arrLength) ? oldArray[index] : undefined;
      }
      return array;
    }

    /**
     * Gets the value at `key`, unless `key` is "__proto__" or "constructor".
     *
     * @private
     * @param {Object} object The object to query.
     * @param {string} key The key of the property to get.
     * @returns {*} Returns the property value.
     */
    function safeGet(object, key) {
      if (key === 'constructor' && typeof object[key] === 'function') {
        return;
      }

      if (key == '__proto__') {
        return;
      }

      return object[key];
    }

    /**
     * Sets metadata for `func`.
     *
     * **Note:** If this function becomes hot, i.e. is invoked a lot in a short
     * period of time, it will trip its breaker and transition to an identity
     * function to avoid garbage collection pauses in V8. See
     * [V8 issue 2070](https://bugs.chromium.org/p/v8/issues/detail?id=2070)
     * for more details.
     *
     * @private
     * @param {Function} func The function to associate metadata with.
     * @param {*} data The metadata.
     * @returns {Function} Returns `func`.
     */
    var setData = shortOut(baseSetData);

    /**
     * A simple wrapper around the global [`setTimeout`](https://mdn.io/setTimeout).
     *
     * @private
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @returns {number|Object} Returns the timer id or timeout object.
     */
    var setTimeout = ctxSetTimeout || function(func, wait) {
      return root.setTimeout(func, wait);
    };

    /**
     * Sets the `toString` method of `func` to return `string`.
     *
     * @private
     * @param {Function} func The function to modify.
     * @param {Function} string The `toString` result.
     * @returns {Function} Returns `func`.
     */
    var setToString = shortOut(baseSetToString);

    /**
     * Sets the `toString` method of `wrapper` to mimic the source of `reference`
     * with wrapper details in a comment at the top of the source body.
     *
     * @private
     * @param {Function} wrapper The function to modify.
     * @param {Function} reference The reference function.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @returns {Function} Returns `wrapper`.
     */
    function setWrapToString(wrapper, reference, bitmask) {
      var source = (reference + '');
      return setToString(wrapper, insertWrapDetails(source, updateWrapDetails(getWrapDetails(source), bitmask)));
    }

    /**
     * Creates a function that'll short out and invoke `identity` instead
     * of `func` when it's called `HOT_COUNT` or more times in `HOT_SPAN`
     * milliseconds.
     *
     * @private
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new shortable function.
     */
    function shortOut(func) {
      var count = 0,
          lastCalled = 0;

      return function() {
        var stamp = nativeNow(),
            remaining = HOT_SPAN - (stamp - lastCalled);

        lastCalled = stamp;
        if (remaining > 0) {
          if (++count >= HOT_COUNT) {
            return arguments[0];
          }
        } else {
          count = 0;
        }
        return func.apply(undefined, arguments);
      };
    }

    /**
     * A specialized version of `_.shuffle` which mutates and sets the size of `array`.
     *
     * @private
     * @param {Array} array The array to shuffle.
     * @param {number} [size=array.length] The size of `array`.
     * @returns {Array} Returns `array`.
     */
    function shuffleSelf(array, size) {
      var index = -1,
          length = array.length,
          lastIndex = length - 1;

      size = size === undefined ? length : size;
      while (++index < size) {
        var rand = baseRandom(index, lastIndex),
            value = array[rand];

        array[rand] = array[index];
        array[index] = value;
      }
      array.length = size;
      return array;
    }

    /**
     * Converts `string` to a property path array.
     *
     * @private
     * @param {string} string The string to convert.
     * @returns {Array} Returns the property path array.
     */
    var stringToPath = memoizeCapped(function(string) {
      var result = [];
      if (string.charCodeAt(0) === 46 /* . */) {
        result.push('');
      }
      string.replace(rePropName, function(match, number, quote, subString) {
        result.push(quote ? subString.replace(reEscapeChar, '$1') : (number || match));
      });
      return result;
    });

    /**
     * Converts `value` to a string key if it's not a string or symbol.
     *
     * @private
     * @param {*} value The value to inspect.
     * @returns {string|symbol} Returns the key.
     */
    function toKey(value) {
      if (typeof value == 'string' || isSymbol(value)) {
        return value;
      }
      var result = (value + '');
      return (result == '0' && (1 / value) == -INFINITY) ? '-0' : result;
    }

    /**
     * Converts `func` to its source code.
     *
     * @private
     * @param {Function} func The function to convert.
     * @returns {string} Returns the source code.
     */
    function toSource(func) {
      if (func != null) {
        try {
          return funcToString.call(func);
        } catch (e) {}
        try {
          return (func + '');
        } catch (e) {}
      }
      return '';
    }

    /**
     * Updates wrapper `details` based on `bitmask` flags.
     *
     * @private
     * @returns {Array} details The details to modify.
     * @param {number} bitmask The bitmask flags. See `createWrap` for more details.
     * @returns {Array} Returns `details`.
     */
    function updateWrapDetails(details, bitmask) {
      arrayEach(wrapFlags, function(pair) {
        var value = '_.' + pair[0];
        if ((bitmask & pair[1]) && !arrayIncludes(details, value)) {
          details.push(value);
        }
      });
      return details.sort();
    }

    /**
     * Creates a clone of `wrapper`.
     *
     * @private
     * @param {Object} wrapper The wrapper to clone.
     * @returns {Object} Returns the cloned wrapper.
     */
    function wrapperClone(wrapper) {
      if (wrapper instanceof LazyWrapper) {
        return wrapper.clone();
      }
      var result = new LodashWrapper(wrapper.__wrapped__, wrapper.__chain__);
      result.__actions__ = copyArray(wrapper.__actions__);
      result.__index__  = wrapper.__index__;
      result.__values__ = wrapper.__values__;
      return result;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an array of elements split into groups the length of `size`.
     * If `array` can't be split evenly, the final chunk will be the remaining
     * elements.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to process.
     * @param {number} [size=1] The length of each chunk
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the new array of chunks.
     * @example
     *
     * _.chunk(['a', 'b', 'c', 'd'], 2);
     * // => [['a', 'b'], ['c', 'd']]
     *
     * _.chunk(['a', 'b', 'c', 'd'], 3);
     * // => [['a', 'b', 'c'], ['d']]
     */
    function chunk(array, size, guard) {
      if ((guard ? isIterateeCall(array, size, guard) : size === undefined)) {
        size = 1;
      } else {
        size = nativeMax(toInteger(size), 0);
      }
      var length = array == null ? 0 : array.length;
      if (!length || size < 1) {
        return [];
      }
      var index = 0,
          resIndex = 0,
          result = Array(nativeCeil(length / size));

      while (index < length) {
        result[resIndex++] = baseSlice(array, index, (index += size));
      }
      return result;
    }

    /**
     * Creates an array with all falsey values removed. The values `false`, `null`,
     * `0`, `""`, `undefined`, and `NaN` are falsey.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to compact.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.compact([0, 1, false, 2, '', 3]);
     * // => [1, 2, 3]
     */
    function compact(array) {
      var index = -1,
          length = array == null ? 0 : array.length,
          resIndex = 0,
          result = [];

      while (++index < length) {
        var value = array[index];
        if (value) {
          result[resIndex++] = value;
        }
      }
      return result;
    }

    /**
     * Creates a new array concatenating `array` with any additional arrays
     * and/or values.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to concatenate.
     * @param {...*} [values] The values to concatenate.
     * @returns {Array} Returns the new concatenated array.
     * @example
     *
     * var array = [1];
     * var other = _.concat(array, 2, [3], [[4]]);
     *
     * console.log(other);
     * // => [1, 2, 3, [4]]
     *
     * console.log(array);
     * // => [1]
     */
    function concat() {
      var length = arguments.length;
      if (!length) {
        return [];
      }
      var args = Array(length - 1),
          array = arguments[0],
          index = length;

      while (index--) {
        args[index - 1] = arguments[index];
      }
      return arrayPush(isArray(array) ? copyArray(array) : [array], baseFlatten(args, 1));
    }

    /**
     * Creates an array of `array` values not included in the other given arrays
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. The order and references of result values are
     * determined by the first array.
     *
     * **Note:** Unlike `_.pullAll`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.without, _.xor
     * @example
     *
     * _.difference([2, 1], [2, 3]);
     * // => [1]
     */
    var difference = baseRest(function(array, values) {
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true))
        : [];
    });

    /**
     * This method is like `_.difference` except that it accepts `iteratee` which
     * is invoked for each element of `array` and `values` to generate the criterion
     * by which they're compared. The order and references of result values are
     * determined by the first array. The iteratee is invoked with one argument:
     * (value).
     *
     * **Note:** Unlike `_.pullAllBy`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.differenceBy([{ 'x': 2 }, { 'x': 1 }], [{ 'x': 1 }], 'x');
     * // => [{ 'x': 2 }]
     */
    var differenceBy = baseRest(function(array, values) {
      var iteratee = last(values);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), getIteratee(iteratee, 2))
        : [];
    });

    /**
     * This method is like `_.difference` except that it accepts `comparator`
     * which is invoked to compare elements of `array` to `values`. The order and
     * references of result values are determined by the first array. The comparator
     * is invoked with two arguments: (arrVal, othVal).
     *
     * **Note:** Unlike `_.pullAllWith`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...Array} [values] The values to exclude.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     *
     * _.differenceWith(objects, [{ 'x': 1, 'y': 2 }], _.isEqual);
     * // => [{ 'x': 2, 'y': 1 }]
     */
    var differenceWith = baseRest(function(array, values) {
      var comparator = last(values);
      if (isArrayLikeObject(comparator)) {
        comparator = undefined;
      }
      return isArrayLikeObject(array)
        ? baseDifference(array, baseFlatten(values, 1, isArrayLikeObject, true), undefined, comparator)
        : [];
    });

    /**
     * Creates a slice of `array` with `n` elements dropped from the beginning.
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.drop([1, 2, 3]);
     * // => [2, 3]
     *
     * _.drop([1, 2, 3], 2);
     * // => [3]
     *
     * _.drop([1, 2, 3], 5);
     * // => []
     *
     * _.drop([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function drop(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      return baseSlice(array, n < 0 ? 0 : n, length);
    }

    /**
     * Creates a slice of `array` with `n` elements dropped from the end.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to drop.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.dropRight([1, 2, 3]);
     * // => [1, 2]
     *
     * _.dropRight([1, 2, 3], 2);
     * // => [1]
     *
     * _.dropRight([1, 2, 3], 5);
     * // => []
     *
     * _.dropRight([1, 2, 3], 0);
     * // => [1, 2, 3]
     */
    function dropRight(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      n = length - n;
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the end.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.dropRightWhile(users, function(o) { return !o.active; });
     * // => objects for ['barney']
     *
     * // The `_.matches` iteratee shorthand.
     * _.dropRightWhile(users, { 'user': 'pebbles', 'active': false });
     * // => objects for ['barney', 'fred']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.dropRightWhile(users, ['active', false]);
     * // => objects for ['barney']
     *
     * // The `_.property` iteratee shorthand.
     * _.dropRightWhile(users, 'active');
     * // => objects for ['barney', 'fred', 'pebbles']
     */
    function dropRightWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), true, true)
        : [];
    }

    /**
     * Creates a slice of `array` excluding elements dropped from the beginning.
     * Elements are dropped until `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.dropWhile(users, function(o) { return !o.active; });
     * // => objects for ['pebbles']
     *
     * // The `_.matches` iteratee shorthand.
     * _.dropWhile(users, { 'user': 'barney', 'active': false });
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.dropWhile(users, ['active', false]);
     * // => objects for ['pebbles']
     *
     * // The `_.property` iteratee shorthand.
     * _.dropWhile(users, 'active');
     * // => objects for ['barney', 'fred', 'pebbles']
     */
    function dropWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), true)
        : [];
    }

    /**
     * Fills elements of `array` with `value` from `start` up to, but not
     * including, `end`.
     *
     * **Note:** This method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Array
     * @param {Array} array The array to fill.
     * @param {*} value The value to fill `array` with.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _.fill(array, 'a');
     * console.log(array);
     * // => ['a', 'a', 'a']
     *
     * _.fill(Array(3), 2);
     * // => [2, 2, 2]
     *
     * _.fill([4, 6, 8, 10], '*', 1, 3);
     * // => [4, '*', '*', 10]
     */
    function fill(array, value, start, end) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      if (start && typeof start != 'number' && isIterateeCall(array, value, start)) {
        start = 0;
        end = length;
      }
      return baseFill(array, value, start, end);
    }

    /**
     * This method is like `_.find` except that it returns the index of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.findIndex(users, function(o) { return o.user == 'barney'; });
     * // => 0
     *
     * // The `_.matches` iteratee shorthand.
     * _.findIndex(users, { 'user': 'fred', 'active': false });
     * // => 1
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findIndex(users, ['active', false]);
     * // => 0
     *
     * // The `_.property` iteratee shorthand.
     * _.findIndex(users, 'active');
     * // => 2
     */
    function findIndex(array, predicate, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = fromIndex == null ? 0 : toInteger(fromIndex);
      if (index < 0) {
        index = nativeMax(length + index, 0);
      }
      return baseFindIndex(array, getIteratee(predicate, 3), index);
    }

    /**
     * This method is like `_.findIndex` except that it iterates over elements
     * of `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=array.length-1] The index to search from.
     * @returns {number} Returns the index of the found element, else `-1`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.findLastIndex(users, function(o) { return o.user == 'pebbles'; });
     * // => 2
     *
     * // The `_.matches` iteratee shorthand.
     * _.findLastIndex(users, { 'user': 'barney', 'active': true });
     * // => 0
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findLastIndex(users, ['active', false]);
     * // => 2
     *
     * // The `_.property` iteratee shorthand.
     * _.findLastIndex(users, 'active');
     * // => 0
     */
    function findLastIndex(array, predicate, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = length - 1;
      if (fromIndex !== undefined) {
        index = toInteger(fromIndex);
        index = fromIndex < 0
          ? nativeMax(length + index, 0)
          : nativeMin(index, length - 1);
      }
      return baseFindIndex(array, getIteratee(predicate, 3), index, true);
    }

    /**
     * Flattens `array` a single level deep.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flatten([1, [2, [3, [4]], 5]]);
     * // => [1, 2, [3, [4]], 5]
     */
    function flatten(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseFlatten(array, 1) : [];
    }

    /**
     * Recursively flattens `array`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * _.flattenDeep([1, [2, [3, [4]], 5]]);
     * // => [1, 2, 3, 4, 5]
     */
    function flattenDeep(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseFlatten(array, INFINITY) : [];
    }

    /**
     * Recursively flatten `array` up to `depth` times.
     *
     * @static
     * @memberOf _
     * @since 4.4.0
     * @category Array
     * @param {Array} array The array to flatten.
     * @param {number} [depth=1] The maximum recursion depth.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * var array = [1, [2, [3, [4]], 5]];
     *
     * _.flattenDepth(array, 1);
     * // => [1, 2, [3, [4]], 5]
     *
     * _.flattenDepth(array, 2);
     * // => [1, 2, 3, [4], 5]
     */
    function flattenDepth(array, depth) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      depth = depth === undefined ? 1 : toInteger(depth);
      return baseFlatten(array, depth);
    }

    /**
     * The inverse of `_.toPairs`; this method returns an object composed
     * from key-value `pairs`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} pairs The key-value pairs.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.fromPairs([['a', 1], ['b', 2]]);
     * // => { 'a': 1, 'b': 2 }
     */
    function fromPairs(pairs) {
      var index = -1,
          length = pairs == null ? 0 : pairs.length,
          result = {};

      while (++index < length) {
        var pair = pairs[index];
        result[pair[0]] = pair[1];
      }
      return result;
    }

    /**
     * Gets the first element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @alias first
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the first element of `array`.
     * @example
     *
     * _.head([1, 2, 3]);
     * // => 1
     *
     * _.head([]);
     * // => undefined
     */
    function head(array) {
      return (array && array.length) ? array[0] : undefined;
    }

    /**
     * Gets the index at which the first occurrence of `value` is found in `array`
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. If `fromIndex` is negative, it's used as the
     * offset from the end of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.indexOf([1, 2, 1, 2], 2);
     * // => 1
     *
     * // Search from the `fromIndex`.
     * _.indexOf([1, 2, 1, 2], 2, 2);
     * // => 3
     */
    function indexOf(array, value, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = fromIndex == null ? 0 : toInteger(fromIndex);
      if (index < 0) {
        index = nativeMax(length + index, 0);
      }
      return baseIndexOf(array, value, index);
    }

    /**
     * Gets all but the last element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.initial([1, 2, 3]);
     * // => [1, 2]
     */
    function initial(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseSlice(array, 0, -1) : [];
    }

    /**
     * Creates an array of unique values that are included in all given arrays
     * using [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons. The order and references of result values are
     * determined by the first array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * _.intersection([2, 1], [2, 3]);
     * // => [2]
     */
    var intersection = baseRest(function(arrays) {
      var mapped = arrayMap(arrays, castArrayLikeObject);
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped)
        : [];
    });

    /**
     * This method is like `_.intersection` except that it accepts `iteratee`
     * which is invoked for each element of each `arrays` to generate the criterion
     * by which they're compared. The order and references of result values are
     * determined by the first array. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * _.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [2.1]
     *
     * // The `_.property` iteratee shorthand.
     * _.intersectionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }]
     */
    var intersectionBy = baseRest(function(arrays) {
      var iteratee = last(arrays),
          mapped = arrayMap(arrays, castArrayLikeObject);

      if (iteratee === last(mapped)) {
        iteratee = undefined;
      } else {
        mapped.pop();
      }
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped, getIteratee(iteratee, 2))
        : [];
    });

    /**
     * This method is like `_.intersection` except that it accepts `comparator`
     * which is invoked to compare elements of `arrays`. The order and references
     * of result values are determined by the first array. The comparator is
     * invoked with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of intersecting values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.intersectionWith(objects, others, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }]
     */
    var intersectionWith = baseRest(function(arrays) {
      var comparator = last(arrays),
          mapped = arrayMap(arrays, castArrayLikeObject);

      comparator = typeof comparator == 'function' ? comparator : undefined;
      if (comparator) {
        mapped.pop();
      }
      return (mapped.length && mapped[0] === arrays[0])
        ? baseIntersection(mapped, undefined, comparator)
        : [];
    });

    /**
     * Converts all elements in `array` into a string separated by `separator`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to convert.
     * @param {string} [separator=','] The element separator.
     * @returns {string} Returns the joined string.
     * @example
     *
     * _.join(['a', 'b', 'c'], '~');
     * // => 'a~b~c'
     */
    function join(array, separator) {
      return array == null ? '' : nativeJoin.call(array, separator);
    }

    /**
     * Gets the last element of `array`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {*} Returns the last element of `array`.
     * @example
     *
     * _.last([1, 2, 3]);
     * // => 3
     */
    function last(array) {
      var length = array == null ? 0 : array.length;
      return length ? array[length - 1] : undefined;
    }

    /**
     * This method is like `_.indexOf` except that it iterates over elements of
     * `array` from right to left.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=array.length-1] The index to search from.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.lastIndexOf([1, 2, 1, 2], 2);
     * // => 3
     *
     * // Search from the `fromIndex`.
     * _.lastIndexOf([1, 2, 1, 2], 2, 2);
     * // => 1
     */
    function lastIndexOf(array, value, fromIndex) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return -1;
      }
      var index = length;
      if (fromIndex !== undefined) {
        index = toInteger(fromIndex);
        index = index < 0 ? nativeMax(length + index, 0) : nativeMin(index, length - 1);
      }
      return value === value
        ? strictLastIndexOf(array, value, index)
        : baseFindIndex(array, baseIsNaN, index, true);
    }

    /**
     * Gets the element at index `n` of `array`. If `n` is negative, the nth
     * element from the end is returned.
     *
     * @static
     * @memberOf _
     * @since 4.11.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=0] The index of the element to return.
     * @returns {*} Returns the nth element of `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'd'];
     *
     * _.nth(array, 1);
     * // => 'b'
     *
     * _.nth(array, -2);
     * // => 'c';
     */
    function nth(array, n) {
      return (array && array.length) ? baseNth(array, toInteger(n)) : undefined;
    }

    /**
     * Removes all given values from `array` using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * **Note:** Unlike `_.without`, this method mutates `array`. Use `_.remove`
     * to remove elements from an array by predicate.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...*} [values] The values to remove.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
     *
     * _.pull(array, 'a', 'c');
     * console.log(array);
     * // => ['b', 'b']
     */
    var pull = baseRest(pullAll);

    /**
     * This method is like `_.pull` except that it accepts an array of values to remove.
     *
     * **Note:** Unlike `_.difference`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = ['a', 'b', 'c', 'a', 'b', 'c'];
     *
     * _.pullAll(array, ['a', 'c']);
     * console.log(array);
     * // => ['b', 'b']
     */
    function pullAll(array, values) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values)
        : array;
    }

    /**
     * This method is like `_.pullAll` except that it accepts `iteratee` which is
     * invoked for each element of `array` and `values` to generate the criterion
     * by which they're compared. The iteratee is invoked with one argument: (value).
     *
     * **Note:** Unlike `_.differenceBy`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [{ 'x': 1 }, { 'x': 2 }, { 'x': 3 }, { 'x': 1 }];
     *
     * _.pullAllBy(array, [{ 'x': 1 }, { 'x': 3 }], 'x');
     * console.log(array);
     * // => [{ 'x': 2 }]
     */
    function pullAllBy(array, values, iteratee) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values, getIteratee(iteratee, 2))
        : array;
    }

    /**
     * This method is like `_.pullAll` except that it accepts `comparator` which
     * is invoked to compare elements of `array` to `values`. The comparator is
     * invoked with two arguments: (arrVal, othVal).
     *
     * **Note:** Unlike `_.differenceWith`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Array} values The values to remove.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [{ 'x': 1, 'y': 2 }, { 'x': 3, 'y': 4 }, { 'x': 5, 'y': 6 }];
     *
     * _.pullAllWith(array, [{ 'x': 3, 'y': 4 }], _.isEqual);
     * console.log(array);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 5, 'y': 6 }]
     */
    function pullAllWith(array, values, comparator) {
      return (array && array.length && values && values.length)
        ? basePullAll(array, values, undefined, comparator)
        : array;
    }

    /**
     * Removes elements from `array` corresponding to `indexes` and returns an
     * array of removed elements.
     *
     * **Note:** Unlike `_.at`, this method mutates `array`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {...(number|number[])} [indexes] The indexes of elements to remove.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = ['a', 'b', 'c', 'd'];
     * var pulled = _.pullAt(array, [1, 3]);
     *
     * console.log(array);
     * // => ['a', 'c']
     *
     * console.log(pulled);
     * // => ['b', 'd']
     */
    var pullAt = flatRest(function(array, indexes) {
      var length = array == null ? 0 : array.length,
          result = baseAt(array, indexes);

      basePullAt(array, arrayMap(indexes, function(index) {
        return isIndex(index, length) ? +index : index;
      }).sort(compareAscending));

      return result;
    });

    /**
     * Removes all elements from `array` that `predicate` returns truthy for
     * and returns an array of the removed elements. The predicate is invoked
     * with three arguments: (value, index, array).
     *
     * **Note:** Unlike `_.filter`, this method mutates `array`. Use `_.pull`
     * to pull elements from an array by value.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new array of removed elements.
     * @example
     *
     * var array = [1, 2, 3, 4];
     * var evens = _.remove(array, function(n) {
     *   return n % 2 == 0;
     * });
     *
     * console.log(array);
     * // => [1, 3]
     *
     * console.log(evens);
     * // => [2, 4]
     */
    function remove(array, predicate) {
      var result = [];
      if (!(array && array.length)) {
        return result;
      }
      var index = -1,
          indexes = [],
          length = array.length;

      predicate = getIteratee(predicate, 3);
      while (++index < length) {
        var value = array[index];
        if (predicate(value, index, array)) {
          result.push(value);
          indexes.push(index);
        }
      }
      basePullAt(array, indexes);
      return result;
    }

    /**
     * Reverses `array` so that the first element becomes the last, the second
     * element becomes the second to last, and so on.
     *
     * **Note:** This method mutates `array` and is based on
     * [`Array#reverse`](https://mdn.io/Array/reverse).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to modify.
     * @returns {Array} Returns `array`.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _.reverse(array);
     * // => [3, 2, 1]
     *
     * console.log(array);
     * // => [3, 2, 1]
     */
    function reverse(array) {
      return array == null ? array : nativeReverse.call(array);
    }

    /**
     * Creates a slice of `array` from `start` up to, but not including, `end`.
     *
     * **Note:** This method is used instead of
     * [`Array#slice`](https://mdn.io/Array/slice) to ensure dense arrays are
     * returned.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to slice.
     * @param {number} [start=0] The start position.
     * @param {number} [end=array.length] The end position.
     * @returns {Array} Returns the slice of `array`.
     */
    function slice(array, start, end) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
        start = 0;
        end = length;
      }
      else {
        start = start == null ? 0 : toInteger(start);
        end = end === undefined ? length : toInteger(end);
      }
      return baseSlice(array, start, end);
    }

    /**
     * Uses a binary search to determine the lowest index at which `value`
     * should be inserted into `array` in order to maintain its sort order.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedIndex([30, 50], 40);
     * // => 1
     */
    function sortedIndex(array, value) {
      return baseSortedIndex(array, value);
    }

    /**
     * This method is like `_.sortedIndex` except that it accepts `iteratee`
     * which is invoked for `value` and each element of `array` to compute their
     * sort ranking. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * var objects = [{ 'x': 4 }, { 'x': 5 }];
     *
     * _.sortedIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
     * // => 0
     *
     * // The `_.property` iteratee shorthand.
     * _.sortedIndexBy(objects, { 'x': 4 }, 'x');
     * // => 0
     */
    function sortedIndexBy(array, value, iteratee) {
      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2));
    }

    /**
     * This method is like `_.indexOf` except that it performs a binary
     * search on a sorted `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.sortedIndexOf([4, 5, 5, 5, 6], 5);
     * // => 1
     */
    function sortedIndexOf(array, value) {
      var length = array == null ? 0 : array.length;
      if (length) {
        var index = baseSortedIndex(array, value);
        if (index < length && eq(array[index], value)) {
          return index;
        }
      }
      return -1;
    }

    /**
     * This method is like `_.sortedIndex` except that it returns the highest
     * index at which `value` should be inserted into `array` in order to
     * maintain its sort order.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * _.sortedLastIndex([4, 5, 5, 5, 6], 5);
     * // => 4
     */
    function sortedLastIndex(array, value) {
      return baseSortedIndex(array, value, true);
    }

    /**
     * This method is like `_.sortedLastIndex` except that it accepts `iteratee`
     * which is invoked for `value` and each element of `array` to compute their
     * sort ranking. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The sorted array to inspect.
     * @param {*} value The value to evaluate.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the index at which `value` should be inserted
     *  into `array`.
     * @example
     *
     * var objects = [{ 'x': 4 }, { 'x': 5 }];
     *
     * _.sortedLastIndexBy(objects, { 'x': 4 }, function(o) { return o.x; });
     * // => 1
     *
     * // The `_.property` iteratee shorthand.
     * _.sortedLastIndexBy(objects, { 'x': 4 }, 'x');
     * // => 1
     */
    function sortedLastIndexBy(array, value, iteratee) {
      return baseSortedIndexBy(array, value, getIteratee(iteratee, 2), true);
    }

    /**
     * This method is like `_.lastIndexOf` except that it performs a binary
     * search on a sorted `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {*} value The value to search for.
     * @returns {number} Returns the index of the matched value, else `-1`.
     * @example
     *
     * _.sortedLastIndexOf([4, 5, 5, 5, 6], 5);
     * // => 3
     */
    function sortedLastIndexOf(array, value) {
      var length = array == null ? 0 : array.length;
      if (length) {
        var index = baseSortedIndex(array, value, true) - 1;
        if (eq(array[index], value)) {
          return index;
        }
      }
      return -1;
    }

    /**
     * This method is like `_.uniq` except that it's designed and optimized
     * for sorted arrays.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.sortedUniq([1, 1, 2]);
     * // => [1, 2]
     */
    function sortedUniq(array) {
      return (array && array.length)
        ? baseSortedUniq(array)
        : [];
    }

    /**
     * This method is like `_.uniqBy` except that it's designed and optimized
     * for sorted arrays.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.sortedUniqBy([1.1, 1.2, 2.3, 2.4], Math.floor);
     * // => [1.1, 2.3]
     */
    function sortedUniqBy(array, iteratee) {
      return (array && array.length)
        ? baseSortedUniq(array, getIteratee(iteratee, 2))
        : [];
    }

    /**
     * Gets all but the first element of `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.tail([1, 2, 3]);
     * // => [2, 3]
     */
    function tail(array) {
      var length = array == null ? 0 : array.length;
      return length ? baseSlice(array, 1, length) : [];
    }

    /**
     * Creates a slice of `array` with `n` elements taken from the beginning.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.take([1, 2, 3]);
     * // => [1]
     *
     * _.take([1, 2, 3], 2);
     * // => [1, 2]
     *
     * _.take([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.take([1, 2, 3], 0);
     * // => []
     */
    function take(array, n, guard) {
      if (!(array && array.length)) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      return baseSlice(array, 0, n < 0 ? 0 : n);
    }

    /**
     * Creates a slice of `array` with `n` elements taken from the end.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {number} [n=1] The number of elements to take.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * _.takeRight([1, 2, 3]);
     * // => [3]
     *
     * _.takeRight([1, 2, 3], 2);
     * // => [2, 3]
     *
     * _.takeRight([1, 2, 3], 5);
     * // => [1, 2, 3]
     *
     * _.takeRight([1, 2, 3], 0);
     * // => []
     */
    function takeRight(array, n, guard) {
      var length = array == null ? 0 : array.length;
      if (!length) {
        return [];
      }
      n = (guard || n === undefined) ? 1 : toInteger(n);
      n = length - n;
      return baseSlice(array, n < 0 ? 0 : n, length);
    }

    /**
     * Creates a slice of `array` with elements taken from the end. Elements are
     * taken until `predicate` returns falsey. The predicate is invoked with
     * three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': true },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': false }
     * ];
     *
     * _.takeRightWhile(users, function(o) { return !o.active; });
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.matches` iteratee shorthand.
     * _.takeRightWhile(users, { 'user': 'pebbles', 'active': false });
     * // => objects for ['pebbles']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.takeRightWhile(users, ['active', false]);
     * // => objects for ['fred', 'pebbles']
     *
     * // The `_.property` iteratee shorthand.
     * _.takeRightWhile(users, 'active');
     * // => []
     */
    function takeRightWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3), false, true)
        : [];
    }

    /**
     * Creates a slice of `array` with elements taken from the beginning. Elements
     * are taken until `predicate` returns falsey. The predicate is invoked with
     * three arguments: (value, index, array).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Array
     * @param {Array} array The array to query.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the slice of `array`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'active': false },
     *   { 'user': 'fred',    'active': false },
     *   { 'user': 'pebbles', 'active': true }
     * ];
     *
     * _.takeWhile(users, function(o) { return !o.active; });
     * // => objects for ['barney', 'fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.takeWhile(users, { 'user': 'barney', 'active': false });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.takeWhile(users, ['active', false]);
     * // => objects for ['barney', 'fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.takeWhile(users, 'active');
     * // => []
     */
    function takeWhile(array, predicate) {
      return (array && array.length)
        ? baseWhile(array, getIteratee(predicate, 3))
        : [];
    }

    /**
     * Creates an array of unique values, in order, from all given arrays using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * _.union([2], [1, 2]);
     * // => [2, 1]
     */
    var union = baseRest(function(arrays) {
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true));
    });

    /**
     * This method is like `_.union` except that it accepts `iteratee` which is
     * invoked for each element of each `arrays` to generate the criterion by
     * which uniqueness is computed. Result values are chosen from the first
     * array in which the value occurs. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * _.unionBy([2.1], [1.2, 2.3], Math.floor);
     * // => [2.1, 1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.unionBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }, { 'x': 2 }]
     */
    var unionBy = baseRest(function(arrays) {
      var iteratee = last(arrays);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), getIteratee(iteratee, 2));
    });

    /**
     * This method is like `_.union` except that it accepts `comparator` which
     * is invoked to compare elements of `arrays`. Result values are chosen from
     * the first array in which the value occurs. The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of combined values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.unionWith(objects, others, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
     */
    var unionWith = baseRest(function(arrays) {
      var comparator = last(arrays);
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return baseUniq(baseFlatten(arrays, 1, isArrayLikeObject, true), undefined, comparator);
    });

    /**
     * Creates a duplicate-free version of an array, using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons, in which only the first occurrence of each element
     * is kept. The order of result values is determined by the order they occur
     * in the array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.uniq([2, 1, 2]);
     * // => [2, 1]
     */
    function uniq(array) {
      return (array && array.length) ? baseUniq(array) : [];
    }

    /**
     * This method is like `_.uniq` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * uniqueness is computed. The order of result values is determined by the
     * order they occur in the array. The iteratee is invoked with one argument:
     * (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * _.uniqBy([2.1, 1.2, 2.3], Math.floor);
     * // => [2.1, 1.2]
     *
     * // The `_.property` iteratee shorthand.
     * _.uniqBy([{ 'x': 1 }, { 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 1 }, { 'x': 2 }]
     */
    function uniqBy(array, iteratee) {
      return (array && array.length) ? baseUniq(array, getIteratee(iteratee, 2)) : [];
    }

    /**
     * This method is like `_.uniq` except that it accepts `comparator` which
     * is invoked to compare elements of `array`. The order of result values is
     * determined by the order they occur in the array.The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new duplicate free array.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.uniqWith(objects, _.isEqual);
     * // => [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }]
     */
    function uniqWith(array, comparator) {
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return (array && array.length) ? baseUniq(array, undefined, comparator) : [];
    }

    /**
     * This method is like `_.zip` except that it accepts an array of grouped
     * elements and creates an array regrouping the elements to their pre-zip
     * configuration.
     *
     * @static
     * @memberOf _
     * @since 1.2.0
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip(['a', 'b'], [1, 2], [true, false]);
     * // => [['a', 1, true], ['b', 2, false]]
     *
     * _.unzip(zipped);
     * // => [['a', 'b'], [1, 2], [true, false]]
     */
    function unzip(array) {
      if (!(array && array.length)) {
        return [];
      }
      var length = 0;
      array = arrayFilter(array, function(group) {
        if (isArrayLikeObject(group)) {
          length = nativeMax(group.length, length);
          return true;
        }
      });
      return baseTimes(length, function(index) {
        return arrayMap(array, baseProperty(index));
      });
    }

    /**
     * This method is like `_.unzip` except that it accepts `iteratee` to specify
     * how regrouped values should be combined. The iteratee is invoked with the
     * elements of each group: (...group).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Array
     * @param {Array} array The array of grouped elements to process.
     * @param {Function} [iteratee=_.identity] The function to combine
     *  regrouped values.
     * @returns {Array} Returns the new array of regrouped elements.
     * @example
     *
     * var zipped = _.zip([1, 2], [10, 20], [100, 200]);
     * // => [[1, 10, 100], [2, 20, 200]]
     *
     * _.unzipWith(zipped, _.add);
     * // => [3, 30, 300]
     */
    function unzipWith(array, iteratee) {
      if (!(array && array.length)) {
        return [];
      }
      var result = unzip(array);
      if (iteratee == null) {
        return result;
      }
      return arrayMap(result, function(group) {
        return apply(iteratee, undefined, group);
      });
    }

    /**
     * Creates an array excluding all given values using
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * for equality comparisons.
     *
     * **Note:** Unlike `_.pull`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {Array} array The array to inspect.
     * @param {...*} [values] The values to exclude.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.difference, _.xor
     * @example
     *
     * _.without([2, 1, 2, 3], 1, 2);
     * // => [3]
     */
    var without = baseRest(function(array, values) {
      return isArrayLikeObject(array)
        ? baseDifference(array, values)
        : [];
    });

    /**
     * Creates an array of unique values that is the
     * [symmetric difference](https://en.wikipedia.org/wiki/Symmetric_difference)
     * of the given arrays. The order of result values is determined by the order
     * they occur in the arrays.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @returns {Array} Returns the new array of filtered values.
     * @see _.difference, _.without
     * @example
     *
     * _.xor([2, 1], [2, 3]);
     * // => [1, 3]
     */
    var xor = baseRest(function(arrays) {
      return baseXor(arrayFilter(arrays, isArrayLikeObject));
    });

    /**
     * This method is like `_.xor` except that it accepts `iteratee` which is
     * invoked for each element of each `arrays` to generate the criterion by
     * which by which they're compared. The order of result values is determined
     * by the order they occur in the arrays. The iteratee is invoked with one
     * argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * _.xorBy([2.1, 1.2], [2.3, 3.4], Math.floor);
     * // => [1.2, 3.4]
     *
     * // The `_.property` iteratee shorthand.
     * _.xorBy([{ 'x': 1 }], [{ 'x': 2 }, { 'x': 1 }], 'x');
     * // => [{ 'x': 2 }]
     */
    var xorBy = baseRest(function(arrays) {
      var iteratee = last(arrays);
      if (isArrayLikeObject(iteratee)) {
        iteratee = undefined;
      }
      return baseXor(arrayFilter(arrays, isArrayLikeObject), getIteratee(iteratee, 2));
    });

    /**
     * This method is like `_.xor` except that it accepts `comparator` which is
     * invoked to compare elements of `arrays`. The order of result values is
     * determined by the order they occur in the arrays. The comparator is invoked
     * with two arguments: (arrVal, othVal).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Array
     * @param {...Array} [arrays] The arrays to inspect.
     * @param {Function} [comparator] The comparator invoked per element.
     * @returns {Array} Returns the new array of filtered values.
     * @example
     *
     * var objects = [{ 'x': 1, 'y': 2 }, { 'x': 2, 'y': 1 }];
     * var others = [{ 'x': 1, 'y': 1 }, { 'x': 1, 'y': 2 }];
     *
     * _.xorWith(objects, others, _.isEqual);
     * // => [{ 'x': 2, 'y': 1 }, { 'x': 1, 'y': 1 }]
     */
    var xorWith = baseRest(function(arrays) {
      var comparator = last(arrays);
      comparator = typeof comparator == 'function' ? comparator : undefined;
      return baseXor(arrayFilter(arrays, isArrayLikeObject), undefined, comparator);
    });

    /**
     * Creates an array of grouped elements, the first of which contains the
     * first elements of the given arrays, the second of which contains the
     * second elements of the given arrays, and so on.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zip(['a', 'b'], [1, 2], [true, false]);
     * // => [['a', 1, true], ['b', 2, false]]
     */
    var zip = baseRest(unzip);

    /**
     * This method is like `_.fromPairs` except that it accepts two arrays,
     * one of property identifiers and one of corresponding values.
     *
     * @static
     * @memberOf _
     * @since 0.4.0
     * @category Array
     * @param {Array} [props=[]] The property identifiers.
     * @param {Array} [values=[]] The property values.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.zipObject(['a', 'b'], [1, 2]);
     * // => { 'a': 1, 'b': 2 }
     */
    function zipObject(props, values) {
      return baseZipObject(props || [], values || [], assignValue);
    }

    /**
     * This method is like `_.zipObject` except that it supports property paths.
     *
     * @static
     * @memberOf _
     * @since 4.1.0
     * @category Array
     * @param {Array} [props=[]] The property identifiers.
     * @param {Array} [values=[]] The property values.
     * @returns {Object} Returns the new object.
     * @example
     *
     * _.zipObjectDeep(['a.b[0].c', 'a.b[1].d'], [1, 2]);
     * // => { 'a': { 'b': [{ 'c': 1 }, { 'd': 2 }] } }
     */
    function zipObjectDeep(props, values) {
      return baseZipObject(props || [], values || [], baseSet);
    }

    /**
     * This method is like `_.zip` except that it accepts `iteratee` to specify
     * how grouped values should be combined. The iteratee is invoked with the
     * elements of each group: (...group).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Array
     * @param {...Array} [arrays] The arrays to process.
     * @param {Function} [iteratee=_.identity] The function to combine
     *  grouped values.
     * @returns {Array} Returns the new array of grouped elements.
     * @example
     *
     * _.zipWith([1, 2], [10, 20], [100, 200], function(a, b, c) {
     *   return a + b + c;
     * });
     * // => [111, 222]
     */
    var zipWith = baseRest(function(arrays) {
      var length = arrays.length,
          iteratee = length > 1 ? arrays[length - 1] : undefined;

      iteratee = typeof iteratee == 'function' ? (arrays.pop(), iteratee) : undefined;
      return unzipWith(arrays, iteratee);
    });

    /*------------------------------------------------------------------------*/

    /**
     * Creates a `lodash` wrapper instance that wraps `value` with explicit method
     * chain sequences enabled. The result of such sequences must be unwrapped
     * with `_#value`.
     *
     * @static
     * @memberOf _
     * @since 1.3.0
     * @category Seq
     * @param {*} value The value to wrap.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36 },
     *   { 'user': 'fred',    'age': 40 },
     *   { 'user': 'pebbles', 'age': 1 }
     * ];
     *
     * var youngest = _
     *   .chain(users)
     *   .sortBy('age')
     *   .map(function(o) {
     *     return o.user + ' is ' + o.age;
     *   })
     *   .head()
     *   .value();
     * // => 'pebbles is 1'
     */
    function chain(value) {
      var result = lodash(value);
      result.__chain__ = true;
      return result;
    }

    /**
     * This method invokes `interceptor` and returns `value`. The interceptor
     * is invoked with one argument; (value). The purpose of this method is to
     * "tap into" a method chain sequence in order to modify intermediate results.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @returns {*} Returns `value`.
     * @example
     *
     * _([1, 2, 3])
     *  .tap(function(array) {
     *    // Mutate input array.
     *    array.pop();
     *  })
     *  .reverse()
     *  .value();
     * // => [2, 1]
     */
    function tap(value, interceptor) {
      interceptor(value);
      return value;
    }

    /**
     * This method is like `_.tap` except that it returns the result of `interceptor`.
     * The purpose of this method is to "pass thru" values replacing intermediate
     * results in a method chain sequence.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Seq
     * @param {*} value The value to provide to `interceptor`.
     * @param {Function} interceptor The function to invoke.
     * @returns {*} Returns the result of `interceptor`.
     * @example
     *
     * _('  abc  ')
     *  .chain()
     *  .trim()
     *  .thru(function(value) {
     *    return [value];
     *  })
     *  .value();
     * // => ['abc']
     */
    function thru(value, interceptor) {
      return interceptor(value);
    }

    /**
     * This method is the wrapper version of `_.at`.
     *
     * @name at
     * @memberOf _
     * @since 1.0.0
     * @category Seq
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
     *
     * _(object).at(['a[0].b.c', 'a[1]']).value();
     * // => [3, 4]
     */
    var wrapperAt = flatRest(function(paths) {
      var length = paths.length,
          start = length ? paths[0] : 0,
          value = this.__wrapped__,
          interceptor = function(object) { return baseAt(object, paths); };

      if (length > 1 || this.__actions__.length ||
          !(value instanceof LazyWrapper) || !isIndex(start)) {
        return this.thru(interceptor);
      }
      value = value.slice(start, +start + (length ? 1 : 0));
      value.__actions__.push({
        'func': thru,
        'args': [interceptor],
        'thisArg': undefined
      });
      return new LodashWrapper(value, this.__chain__).thru(function(array) {
        if (length && !array.length) {
          array.push(undefined);
        }
        return array;
      });
    });

    /**
     * Creates a `lodash` wrapper instance with explicit method chain sequences enabled.
     *
     * @name chain
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 40 }
     * ];
     *
     * // A sequence without explicit chaining.
     * _(users).head();
     * // => { 'user': 'barney', 'age': 36 }
     *
     * // A sequence with explicit chaining.
     * _(users)
     *   .chain()
     *   .head()
     *   .pick('user')
     *   .value();
     * // => { 'user': 'barney' }
     */
    function wrapperChain() {
      return chain(this);
    }

    /**
     * Executes the chain sequence and returns the wrapped result.
     *
     * @name commit
     * @memberOf _
     * @since 3.2.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2];
     * var wrapped = _(array).push(3);
     *
     * console.log(array);
     * // => [1, 2]
     *
     * wrapped = wrapped.commit();
     * console.log(array);
     * // => [1, 2, 3]
     *
     * wrapped.last();
     * // => 3
     *
     * console.log(array);
     * // => [1, 2, 3]
     */
    function wrapperCommit() {
      return new LodashWrapper(this.value(), this.__chain__);
    }

    /**
     * Gets the next value on a wrapped object following the
     * [iterator protocol](https://mdn.io/iteration_protocols#iterator).
     *
     * @name next
     * @memberOf _
     * @since 4.0.0
     * @category Seq
     * @returns {Object} Returns the next iterator value.
     * @example
     *
     * var wrapped = _([1, 2]);
     *
     * wrapped.next();
     * // => { 'done': false, 'value': 1 }
     *
     * wrapped.next();
     * // => { 'done': false, 'value': 2 }
     *
     * wrapped.next();
     * // => { 'done': true, 'value': undefined }
     */
    function wrapperNext() {
      if (this.__values__ === undefined) {
        this.__values__ = toArray(this.value());
      }
      var done = this.__index__ >= this.__values__.length,
          value = done ? undefined : this.__values__[this.__index__++];

      return { 'done': done, 'value': value };
    }

    /**
     * Enables the wrapper to be iterable.
     *
     * @name Symbol.iterator
     * @memberOf _
     * @since 4.0.0
     * @category Seq
     * @returns {Object} Returns the wrapper object.
     * @example
     *
     * var wrapped = _([1, 2]);
     *
     * wrapped[Symbol.iterator]() === wrapped;
     * // => true
     *
     * Array.from(wrapped);
     * // => [1, 2]
     */
    function wrapperToIterator() {
      return this;
    }

    /**
     * Creates a clone of the chain sequence planting `value` as the wrapped value.
     *
     * @name plant
     * @memberOf _
     * @since 3.2.0
     * @category Seq
     * @param {*} value The value to plant.
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var wrapped = _([1, 2]).map(square);
     * var other = wrapped.plant([3, 4]);
     *
     * other.value();
     * // => [9, 16]
     *
     * wrapped.value();
     * // => [1, 4]
     */
    function wrapperPlant(value) {
      var result,
          parent = this;

      while (parent instanceof baseLodash) {
        var clone = wrapperClone(parent);
        clone.__index__ = 0;
        clone.__values__ = undefined;
        if (result) {
          previous.__wrapped__ = clone;
        } else {
          result = clone;
        }
        var previous = clone;
        parent = parent.__wrapped__;
      }
      previous.__wrapped__ = value;
      return result;
    }

    /**
     * This method is the wrapper version of `_.reverse`.
     *
     * **Note:** This method mutates the wrapped array.
     *
     * @name reverse
     * @memberOf _
     * @since 0.1.0
     * @category Seq
     * @returns {Object} Returns the new `lodash` wrapper instance.
     * @example
     *
     * var array = [1, 2, 3];
     *
     * _(array).reverse().value()
     * // => [3, 2, 1]
     *
     * console.log(array);
     * // => [3, 2, 1]
     */
    function wrapperReverse() {
      var value = this.__wrapped__;
      if (value instanceof LazyWrapper) {
        var wrapped = value;
        if (this.__actions__.length) {
          wrapped = new LazyWrapper(this);
        }
        wrapped = wrapped.reverse();
        wrapped.__actions__.push({
          'func': thru,
          'args': [reverse],
          'thisArg': undefined
        });
        return new LodashWrapper(wrapped, this.__chain__);
      }
      return this.thru(reverse);
    }

    /**
     * Executes the chain sequence to resolve the unwrapped value.
     *
     * @name value
     * @memberOf _
     * @since 0.1.0
     * @alias toJSON, valueOf
     * @category Seq
     * @returns {*} Returns the resolved unwrapped value.
     * @example
     *
     * _([1, 2, 3]).value();
     * // => [1, 2, 3]
     */
    function wrapperValue() {
      return baseWrapperValue(this.__wrapped__, this.__actions__);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The corresponding value of
     * each key is the number of times the key was returned by `iteratee`. The
     * iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.countBy([6.1, 4.2, 6.3], Math.floor);
     * // => { '4': 1, '6': 2 }
     *
     * // The `_.property` iteratee shorthand.
     * _.countBy(['one', 'two', 'three'], 'length');
     * // => { '3': 2, '5': 1 }
     */
    var countBy = createAggregator(function(result, value, key) {
      if (hasOwnProperty.call(result, key)) {
        ++result[key];
      } else {
        baseAssignValue(result, key, 1);
      }
    });

    /**
     * Checks if `predicate` returns truthy for **all** elements of `collection`.
     * Iteration is stopped once `predicate` returns falsey. The predicate is
     * invoked with three arguments: (value, index|key, collection).
     *
     * **Note:** This method returns `true` for
     * [empty collections](https://en.wikipedia.org/wiki/Empty_set) because
     * [everything is true](https://en.wikipedia.org/wiki/Vacuous_truth) of
     * elements of empty collections.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {boolean} Returns `true` if all elements pass the predicate check,
     *  else `false`.
     * @example
     *
     * _.every([true, 1, null, 'yes'], Boolean);
     * // => false
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.every(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.every(users, ['active', false]);
     * // => true
     *
     * // The `_.property` iteratee shorthand.
     * _.every(users, 'active');
     * // => false
     */
    function every(collection, predicate, guard) {
      var func = isArray(collection) ? arrayEvery : baseEvery;
      if (guard && isIterateeCall(collection, predicate, guard)) {
        predicate = undefined;
      }
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Iterates over elements of `collection`, returning an array of all elements
     * `predicate` returns truthy for. The predicate is invoked with three
     * arguments: (value, index|key, collection).
     *
     * **Note:** Unlike `_.remove`, this method returns a new array.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     * @see _.reject
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * _.filter(users, function(o) { return !o.active; });
     * // => objects for ['fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.filter(users, { 'age': 36, 'active': true });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.filter(users, ['active', false]);
     * // => objects for ['fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.filter(users, 'active');
     * // => objects for ['barney']
     *
     * // Combining several predicates using `_.overEvery` or `_.overSome`.
     * _.filter(users, _.overSome([{ 'age': 36 }, ['age', 40]]));
     * // => objects for ['fred', 'barney']
     */
    function filter(collection, predicate) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Iterates over elements of `collection`, returning the first element
     * `predicate` returns truthy for. The predicate is invoked with three
     * arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=0] The index to search from.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': true },
     *   { 'user': 'fred',    'age': 40, 'active': false },
     *   { 'user': 'pebbles', 'age': 1,  'active': true }
     * ];
     *
     * _.find(users, function(o) { return o.age < 40; });
     * // => object for 'barney'
     *
     * // The `_.matches` iteratee shorthand.
     * _.find(users, { 'age': 1, 'active': true });
     * // => object for 'pebbles'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.find(users, ['active', false]);
     * // => object for 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.find(users, 'active');
     * // => object for 'barney'
     */
    var find = createFind(findIndex);

    /**
     * This method is like `_.find` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param {number} [fromIndex=collection.length-1] The index to search from.
     * @returns {*} Returns the matched element, else `undefined`.
     * @example
     *
     * _.findLast([1, 2, 3, 4], function(n) {
     *   return n % 2 == 1;
     * });
     * // => 3
     */
    var findLast = createFind(findLastIndex);

    /**
     * Creates a flattened array of values by running each element in `collection`
     * thru `iteratee` and flattening the mapped results. The iteratee is invoked
     * with three arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [n, n];
     * }
     *
     * _.flatMap([1, 2], duplicate);
     * // => [1, 1, 2, 2]
     */
    function flatMap(collection, iteratee) {
      return baseFlatten(map(collection, iteratee), 1);
    }

    /**
     * This method is like `_.flatMap` except that it recursively flattens the
     * mapped results.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [[[n, n]]];
     * }
     *
     * _.flatMapDeep([1, 2], duplicate);
     * // => [1, 1, 2, 2]
     */
    function flatMapDeep(collection, iteratee) {
      return baseFlatten(map(collection, iteratee), INFINITY);
    }

    /**
     * This method is like `_.flatMap` except that it recursively flattens the
     * mapped results up to `depth` times.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {number} [depth=1] The maximum recursion depth.
     * @returns {Array} Returns the new flattened array.
     * @example
     *
     * function duplicate(n) {
     *   return [[[n, n]]];
     * }
     *
     * _.flatMapDepth([1, 2], duplicate, 2);
     * // => [[1, 1], [2, 2]]
     */
    function flatMapDepth(collection, iteratee, depth) {
      depth = depth === undefined ? 1 : toInteger(depth);
      return baseFlatten(map(collection, iteratee), depth);
    }

    /**
     * Iterates over elements of `collection` and invokes `iteratee` for each element.
     * The iteratee is invoked with three arguments: (value, index|key, collection).
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * **Note:** As with other "Collections" methods, objects with a "length"
     * property are iterated like arrays. To avoid this behavior use `_.forIn`
     * or `_.forOwn` for object iteration.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @alias each
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     * @see _.forEachRight
     * @example
     *
     * _.forEach([1, 2], function(value) {
     *   console.log(value);
     * });
     * // => Logs `1` then `2`.
     *
     * _.forEach({ 'a': 1, 'b': 2 }, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
     */
    function forEach(collection, iteratee) {
      var func = isArray(collection) ? arrayEach : baseEach;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.forEach` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @alias eachRight
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array|Object} Returns `collection`.
     * @see _.forEach
     * @example
     *
     * _.forEachRight([1, 2], function(value) {
     *   console.log(value);
     * });
     * // => Logs `2` then `1`.
     */
    function forEachRight(collection, iteratee) {
      var func = isArray(collection) ? arrayEachRight : baseEachRight;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The order of grouped values
     * is determined by the order they occur in `collection`. The corresponding
     * value of each key is an array of elements responsible for generating the
     * key. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * _.groupBy([6.1, 4.2, 6.3], Math.floor);
     * // => { '4': [4.2], '6': [6.1, 6.3] }
     *
     * // The `_.property` iteratee shorthand.
     * _.groupBy(['one', 'two', 'three'], 'length');
     * // => { '3': ['one', 'two'], '5': ['three'] }
     */
    var groupBy = createAggregator(function(result, value, key) {
      if (hasOwnProperty.call(result, key)) {
        result[key].push(value);
      } else {
        baseAssignValue(result, key, [value]);
      }
    });

    /**
     * Checks if `value` is in `collection`. If `collection` is a string, it's
     * checked for a substring of `value`, otherwise
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * is used for equality comparisons. If `fromIndex` is negative, it's used as
     * the offset from the end of `collection`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object|string} collection The collection to inspect.
     * @param {*} value The value to search for.
     * @param {number} [fromIndex=0] The index to search from.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
     * @returns {boolean} Returns `true` if `value` is found, else `false`.
     * @example
     *
     * _.includes([1, 2, 3], 1);
     * // => true
     *
     * _.includes([1, 2, 3], 1, 2);
     * // => false
     *
     * _.includes({ 'a': 1, 'b': 2 }, 1);
     * // => true
     *
     * _.includes('abcd', 'bc');
     * // => true
     */
    function includes(collection, value, fromIndex, guard) {
      collection = isArrayLike(collection) ? collection : values(collection);
      fromIndex = (fromIndex && !guard) ? toInteger(fromIndex) : 0;

      var length = collection.length;
      if (fromIndex < 0) {
        fromIndex = nativeMax(length + fromIndex, 0);
      }
      return isString(collection)
        ? (fromIndex <= length && collection.indexOf(value, fromIndex) > -1)
        : (!!length && baseIndexOf(collection, value, fromIndex) > -1);
    }

    /**
     * Invokes the method at `path` of each element in `collection`, returning
     * an array of the results of each invoked method. Any additional arguments
     * are provided to each invoked method. If `path` is a function, it's invoked
     * for, and `this` bound to, each element in `collection`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Array|Function|string} path The path of the method to invoke or
     *  the function invoked per iteration.
     * @param {...*} [args] The arguments to invoke each method with.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * _.invokeMap([[5, 1, 7], [3, 2, 1]], 'sort');
     * // => [[1, 5, 7], [1, 2, 3]]
     *
     * _.invokeMap([123, 456], String.prototype.split, '');
     * // => [['1', '2', '3'], ['4', '5', '6']]
     */
    var invokeMap = baseRest(function(collection, path, args) {
      var index = -1,
          isFunc = typeof path == 'function',
          result = isArrayLike(collection) ? Array(collection.length) : [];

      baseEach(collection, function(value) {
        result[++index] = isFunc ? apply(path, value, args) : baseInvoke(value, path, args);
      });
      return result;
    });

    /**
     * Creates an object composed of keys generated from the results of running
     * each element of `collection` thru `iteratee`. The corresponding value of
     * each key is the last element responsible for generating the key. The
     * iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee to transform keys.
     * @returns {Object} Returns the composed aggregate object.
     * @example
     *
     * var array = [
     *   { 'dir': 'left', 'code': 97 },
     *   { 'dir': 'right', 'code': 100 }
     * ];
     *
     * _.keyBy(array, function(o) {
     *   return String.fromCharCode(o.code);
     * });
     * // => { 'a': { 'dir': 'left', 'code': 97 }, 'd': { 'dir': 'right', 'code': 100 } }
     *
     * _.keyBy(array, 'dir');
     * // => { 'left': { 'dir': 'left', 'code': 97 }, 'right': { 'dir': 'right', 'code': 100 } }
     */
    var keyBy = createAggregator(function(result, value, key) {
      baseAssignValue(result, key, value);
    });

    /**
     * Creates an array of values by running each element in `collection` thru
     * `iteratee`. The iteratee is invoked with three arguments:
     * (value, index|key, collection).
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
     *
     * The guarded methods are:
     * `ary`, `chunk`, `curry`, `curryRight`, `drop`, `dropRight`, `every`,
     * `fill`, `invert`, `parseInt`, `random`, `range`, `rangeRight`, `repeat`,
     * `sampleSize`, `slice`, `some`, `sortBy`, `split`, `take`, `takeRight`,
     * `template`, `trim`, `trimEnd`, `trimStart`, and `words`
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new mapped array.
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * _.map([4, 8], square);
     * // => [16, 64]
     *
     * _.map({ 'a': 4, 'b': 8 }, square);
     * // => [16, 64] (iteration order is not guaranteed)
     *
     * var users = [
     *   { 'user': 'barney' },
     *   { 'user': 'fred' }
     * ];
     *
     * // The `_.property` iteratee shorthand.
     * _.map(users, 'user');
     * // => ['barney', 'fred']
     */
    function map(collection, iteratee) {
      var func = isArray(collection) ? arrayMap : baseMap;
      return func(collection, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.sortBy` except that it allows specifying the sort
     * orders of the iteratees to sort by. If `orders` is unspecified, all values
     * are sorted in ascending order. Otherwise, specify an order of "desc" for
     * descending or "asc" for ascending sort order of corresponding values.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Array[]|Function[]|Object[]|string[]} [iteratees=[_.identity]]
     *  The iteratees to sort by.
     * @param {string[]} [orders] The sort orders of `iteratees`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.reduce`.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 34 },
     *   { 'user': 'fred',   'age': 40 },
     *   { 'user': 'barney', 'age': 36 }
     * ];
     *
     * // Sort by `user` in ascending order and by `age` in descending order.
     * _.orderBy(users, ['user', 'age'], ['asc', 'desc']);
     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 40]]
     */
    function orderBy(collection, iteratees, orders, guard) {
      if (collection == null) {
        return [];
      }
      if (!isArray(iteratees)) {
        iteratees = iteratees == null ? [] : [iteratees];
      }
      orders = guard ? undefined : orders;
      if (!isArray(orders)) {
        orders = orders == null ? [] : [orders];
      }
      return baseOrderBy(collection, iteratees, orders);
    }

    /**
     * Creates an array of elements split into two groups, the first of which
     * contains elements `predicate` returns truthy for, the second of which
     * contains elements `predicate` returns falsey for. The predicate is
     * invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the array of grouped elements.
     * @example
     *
     * var users = [
     *   { 'user': 'barney',  'age': 36, 'active': false },
     *   { 'user': 'fred',    'age': 40, 'active': true },
     *   { 'user': 'pebbles', 'age': 1,  'active': false }
     * ];
     *
     * _.partition(users, function(o) { return o.active; });
     * // => objects for [['fred'], ['barney', 'pebbles']]
     *
     * // The `_.matches` iteratee shorthand.
     * _.partition(users, { 'age': 1, 'active': false });
     * // => objects for [['pebbles'], ['barney', 'fred']]
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.partition(users, ['active', false]);
     * // => objects for [['barney', 'pebbles'], ['fred']]
     *
     * // The `_.property` iteratee shorthand.
     * _.partition(users, 'active');
     * // => objects for [['fred'], ['barney', 'pebbles']]
     */
    var partition = createAggregator(function(result, value, key) {
      result[key ? 0 : 1].push(value);
    }, function() { return [[], []]; });

    /**
     * Reduces `collection` to a value which is the accumulated result of running
     * each element in `collection` thru `iteratee`, where each successive
     * invocation is supplied the return value of the previous. If `accumulator`
     * is not given, the first element of `collection` is used as the initial
     * value. The iteratee is invoked with four arguments:
     * (accumulator, value, index|key, collection).
     *
     * Many lodash methods are guarded to work as iteratees for methods like
     * `_.reduce`, `_.reduceRight`, and `_.transform`.
     *
     * The guarded methods are:
     * `assign`, `defaults`, `defaultsDeep`, `includes`, `merge`, `orderBy`,
     * and `sortBy`
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @returns {*} Returns the accumulated value.
     * @see _.reduceRight
     * @example
     *
     * _.reduce([1, 2], function(sum, n) {
     *   return sum + n;
     * }, 0);
     * // => 3
     *
     * _.reduce({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
     *   (result[value] || (result[value] = [])).push(key);
     *   return result;
     * }, {});
     * // => { '1': ['a', 'c'], '2': ['b'] } (iteration order is not guaranteed)
     */
    function reduce(collection, iteratee, accumulator) {
      var func = isArray(collection) ? arrayReduce : baseReduce,
          initAccum = arguments.length < 3;

      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEach);
    }

    /**
     * This method is like `_.reduce` except that it iterates over elements of
     * `collection` from right to left.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The initial value.
     * @returns {*} Returns the accumulated value.
     * @see _.reduce
     * @example
     *
     * var array = [[0, 1], [2, 3], [4, 5]];
     *
     * _.reduceRight(array, function(flattened, other) {
     *   return flattened.concat(other);
     * }, []);
     * // => [4, 5, 2, 3, 0, 1]
     */
    function reduceRight(collection, iteratee, accumulator) {
      var func = isArray(collection) ? arrayReduceRight : baseReduce,
          initAccum = arguments.length < 3;

      return func(collection, getIteratee(iteratee, 4), accumulator, initAccum, baseEachRight);
    }

    /**
     * The opposite of `_.filter`; this method returns the elements of `collection`
     * that `predicate` does **not** return truthy for.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the new filtered array.
     * @see _.filter
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': false },
     *   { 'user': 'fred',   'age': 40, 'active': true }
     * ];
     *
     * _.reject(users, function(o) { return !o.active; });
     * // => objects for ['fred']
     *
     * // The `_.matches` iteratee shorthand.
     * _.reject(users, { 'age': 40, 'active': true });
     * // => objects for ['barney']
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.reject(users, ['active', false]);
     * // => objects for ['fred']
     *
     * // The `_.property` iteratee shorthand.
     * _.reject(users, 'active');
     * // => objects for ['barney']
     */
    function reject(collection, predicate) {
      var func = isArray(collection) ? arrayFilter : baseFilter;
      return func(collection, negate(getIteratee(predicate, 3)));
    }

    /**
     * Gets a random element from `collection`.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to sample.
     * @returns {*} Returns the random element.
     * @example
     *
     * _.sample([1, 2, 3, 4]);
     * // => 2
     */
    function sample(collection) {
      var func = isArray(collection) ? arraySample : baseSample;
      return func(collection);
    }

    /**
     * Gets `n` random elements at unique keys from `collection` up to the
     * size of `collection`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Collection
     * @param {Array|Object} collection The collection to sample.
     * @param {number} [n=1] The number of elements to sample.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the random elements.
     * @example
     *
     * _.sampleSize([1, 2, 3], 2);
     * // => [3, 1]
     *
     * _.sampleSize([1, 2, 3], 4);
     * // => [2, 3, 1]
     */
    function sampleSize(collection, n, guard) {
      if ((guard ? isIterateeCall(collection, n, guard) : n === undefined)) {
        n = 1;
      } else {
        n = toInteger(n);
      }
      var func = isArray(collection) ? arraySampleSize : baseSampleSize;
      return func(collection, n);
    }

    /**
     * Creates an array of shuffled values, using a version of the
     * [Fisher-Yates shuffle](https://en.wikipedia.org/wiki/Fisher-Yates_shuffle).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to shuffle.
     * @returns {Array} Returns the new shuffled array.
     * @example
     *
     * _.shuffle([1, 2, 3, 4]);
     * // => [4, 1, 3, 2]
     */
    function shuffle(collection) {
      var func = isArray(collection) ? arrayShuffle : baseShuffle;
      return func(collection);
    }

    /**
     * Gets the size of `collection` by returning its length for array-like
     * values or the number of own enumerable string keyed properties for objects.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object|string} collection The collection to inspect.
     * @returns {number} Returns the collection size.
     * @example
     *
     * _.size([1, 2, 3]);
     * // => 3
     *
     * _.size({ 'a': 1, 'b': 2 });
     * // => 2
     *
     * _.size('pebbles');
     * // => 7
     */
    function size(collection) {
      if (collection == null) {
        return 0;
      }
      if (isArrayLike(collection)) {
        return isString(collection) ? stringSize(collection) : collection.length;
      }
      var tag = getTag(collection);
      if (tag == mapTag || tag == setTag) {
        return collection.size;
      }
      return baseKeys(collection).length;
    }

    /**
     * Checks if `predicate` returns truthy for **any** element of `collection`.
     * Iteration is stopped once `predicate` returns truthy. The predicate is
     * invoked with three arguments: (value, index|key, collection).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {boolean} Returns `true` if any element passes the predicate check,
     *  else `false`.
     * @example
     *
     * _.some([null, 0, 'yes', false], Boolean);
     * // => true
     *
     * var users = [
     *   { 'user': 'barney', 'active': true },
     *   { 'user': 'fred',   'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.some(users, { 'user': 'barney', 'active': false });
     * // => false
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.some(users, ['active', false]);
     * // => true
     *
     * // The `_.property` iteratee shorthand.
     * _.some(users, 'active');
     * // => true
     */
    function some(collection, predicate, guard) {
      var func = isArray(collection) ? arraySome : baseSome;
      if (guard && isIterateeCall(collection, predicate, guard)) {
        predicate = undefined;
      }
      return func(collection, getIteratee(predicate, 3));
    }

    /**
     * Creates an array of elements, sorted in ascending order by the results of
     * running each element in a collection thru each iteratee. This method
     * performs a stable sort, that is, it preserves the original sort order of
     * equal elements. The iteratees are invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Collection
     * @param {Array|Object} collection The collection to iterate over.
     * @param {...(Function|Function[])} [iteratees=[_.identity]]
     *  The iteratees to sort by.
     * @returns {Array} Returns the new sorted array.
     * @example
     *
     * var users = [
     *   { 'user': 'fred',   'age': 48 },
     *   { 'user': 'barney', 'age': 36 },
     *   { 'user': 'fred',   'age': 30 },
     *   { 'user': 'barney', 'age': 34 }
     * ];
     *
     * _.sortBy(users, [function(o) { return o.user; }]);
     * // => objects for [['barney', 36], ['barney', 34], ['fred', 48], ['fred', 30]]
     *
     * _.sortBy(users, ['user', 'age']);
     * // => objects for [['barney', 34], ['barney', 36], ['fred', 30], ['fred', 48]]
     */
    var sortBy = baseRest(function(collection, iteratees) {
      if (collection == null) {
        return [];
      }
      var length = iteratees.length;
      if (length > 1 && isIterateeCall(collection, iteratees[0], iteratees[1])) {
        iteratees = [];
      } else if (length > 2 && isIterateeCall(iteratees[0], iteratees[1], iteratees[2])) {
        iteratees = [iteratees[0]];
      }
      return baseOrderBy(collection, baseFlatten(iteratees, 1), []);
    });

    /*------------------------------------------------------------------------*/

    /**
     * Gets the timestamp of the number of milliseconds that have elapsed since
     * the Unix epoch (1 January 1970 00:00:00 UTC).
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Date
     * @returns {number} Returns the timestamp.
     * @example
     *
     * _.defer(function(stamp) {
     *   console.log(_.now() - stamp);
     * }, _.now());
     * // => Logs the number of milliseconds it took for the deferred invocation.
     */
    var now = ctxNow || function() {
      return root.Date.now();
    };

    /*------------------------------------------------------------------------*/

    /**
     * The opposite of `_.before`; this method creates a function that invokes
     * `func` once it's called `n` or more times.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {number} n The number of calls before `func` is invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var saves = ['profile', 'settings'];
     *
     * var done = _.after(saves.length, function() {
     *   console.log('done saving!');
     * });
     *
     * _.forEach(saves, function(type) {
     *   asyncSave({ 'type': type, 'complete': done });
     * });
     * // => Logs 'done saving!' after the two async saves have completed.
     */
    function after(n, func) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      n = toInteger(n);
      return function() {
        if (--n < 1) {
          return func.apply(this, arguments);
        }
      };
    }

    /**
     * Creates a function that invokes `func`, with up to `n` arguments,
     * ignoring any additional arguments.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to cap arguments for.
     * @param {number} [n=func.length] The arity cap.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new capped function.
     * @example
     *
     * _.map(['6', '8', '10'], _.ary(parseInt, 1));
     * // => [6, 8, 10]
     */
    function ary(func, n, guard) {
      n = guard ? undefined : n;
      n = (func && n == null) ? func.length : n;
      return createWrap(func, WRAP_ARY_FLAG, undefined, undefined, undefined, undefined, n);
    }

    /**
     * Creates a function that invokes `func`, with the `this` binding and arguments
     * of the created function, while it's called less than `n` times. Subsequent
     * calls to the created function return the result of the last `func` invocation.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {number} n The number of calls at which `func` is no longer invoked.
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * jQuery(element).on('click', _.before(5, addContactToList));
     * // => Allows adding up to 4 contacts to the list.
     */
    function before(n, func) {
      var result;
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      n = toInteger(n);
      return function() {
        if (--n > 0) {
          result = func.apply(this, arguments);
        }
        if (n <= 1) {
          func = undefined;
        }
        return result;
      };
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of `thisArg`
     * and `partials` prepended to the arguments it receives.
     *
     * The `_.bind.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for partially applied arguments.
     *
     * **Note:** Unlike native `Function#bind`, this method doesn't set the "length"
     * property of bound functions.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to bind.
     * @param {*} thisArg The `this` binding of `func`.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * function greet(greeting, punctuation) {
     *   return greeting + ' ' + this.user + punctuation;
     * }
     *
     * var object = { 'user': 'fred' };
     *
     * var bound = _.bind(greet, object, 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * // Bound with placeholders.
     * var bound = _.bind(greet, object, _, '!');
     * bound('hi');
     * // => 'hi fred!'
     */
    var bind = baseRest(function(func, thisArg, partials) {
      var bitmask = WRAP_BIND_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, getHolder(bind));
        bitmask |= WRAP_PARTIAL_FLAG;
      }
      return createWrap(func, bitmask, thisArg, partials, holders);
    });

    /**
     * Creates a function that invokes the method at `object[key]` with `partials`
     * prepended to the arguments it receives.
     *
     * This method differs from `_.bind` by allowing bound functions to reference
     * methods that may be redefined or don't yet exist. See
     * [Peter Michaux's article](http://peter.michaux.ca/articles/lazy-function-definition-pattern)
     * for more details.
     *
     * The `_.bindKey.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * @static
     * @memberOf _
     * @since 0.10.0
     * @category Function
     * @param {Object} object The object to invoke the method on.
     * @param {string} key The key of the method.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new bound function.
     * @example
     *
     * var object = {
     *   'user': 'fred',
     *   'greet': function(greeting, punctuation) {
     *     return greeting + ' ' + this.user + punctuation;
     *   }
     * };
     *
     * var bound = _.bindKey(object, 'greet', 'hi');
     * bound('!');
     * // => 'hi fred!'
     *
     * object.greet = function(greeting, punctuation) {
     *   return greeting + 'ya ' + this.user + punctuation;
     * };
     *
     * bound('!');
     * // => 'hiya fred!'
     *
     * // Bound with placeholders.
     * var bound = _.bindKey(object, 'greet', _, '!');
     * bound('hi');
     * // => 'hiya fred!'
     */
    var bindKey = baseRest(function(object, key, partials) {
      var bitmask = WRAP_BIND_FLAG | WRAP_BIND_KEY_FLAG;
      if (partials.length) {
        var holders = replaceHolders(partials, getHolder(bindKey));
        bitmask |= WRAP_PARTIAL_FLAG;
      }
      return createWrap(key, bitmask, object, partials, holders);
    });

    /**
     * Creates a function that accepts arguments of `func` and either invokes
     * `func` returning its result, if at least `arity` number of arguments have
     * been provided, or returns a function that accepts the remaining `func`
     * arguments, and so on. The arity of `func` may be specified if `func.length`
     * is not sufficient.
     *
     * The `_.curry.placeholder` value, which defaults to `_` in monolithic builds,
     * may be used as a placeholder for provided arguments.
     *
     * **Note:** This method doesn't set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curry(abc);
     *
     * curried(1)(2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2)(3);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // Curried with placeholders.
     * curried(1)(_, 3)(2);
     * // => [1, 2, 3]
     */
    function curry(func, arity, guard) {
      arity = guard ? undefined : arity;
      var result = createWrap(func, WRAP_CURRY_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
      result.placeholder = curry.placeholder;
      return result;
    }

    /**
     * This method is like `_.curry` except that arguments are applied to `func`
     * in the manner of `_.partialRight` instead of `_.partial`.
     *
     * The `_.curryRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for provided arguments.
     *
     * **Note:** This method doesn't set the "length" property of curried functions.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to curry.
     * @param {number} [arity=func.length] The arity of `func`.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the new curried function.
     * @example
     *
     * var abc = function(a, b, c) {
     *   return [a, b, c];
     * };
     *
     * var curried = _.curryRight(abc);
     *
     * curried(3)(2)(1);
     * // => [1, 2, 3]
     *
     * curried(2, 3)(1);
     * // => [1, 2, 3]
     *
     * curried(1, 2, 3);
     * // => [1, 2, 3]
     *
     * // Curried with placeholders.
     * curried(3)(1, _)(2);
     * // => [1, 2, 3]
     */
    function curryRight(func, arity, guard) {
      arity = guard ? undefined : arity;
      var result = createWrap(func, WRAP_CURRY_RIGHT_FLAG, undefined, undefined, undefined, undefined, undefined, arity);
      result.placeholder = curryRight.placeholder;
      return result;
    }

    /**
     * Creates a debounced function that delays invoking `func` until after `wait`
     * milliseconds have elapsed since the last time the debounced function was
     * invoked. The debounced function comes with a `cancel` method to cancel
     * delayed `func` invocations and a `flush` method to immediately invoke them.
     * Provide `options` to indicate whether `func` should be invoked on the
     * leading and/or trailing edge of the `wait` timeout. The `func` is invoked
     * with the last arguments provided to the debounced function. Subsequent
     * calls to the debounced function return the result of the last `func`
     * invocation.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is
     * invoked on the trailing edge of the timeout only if the debounced function
     * is invoked more than once during the `wait` timeout.
     *
     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
     *
     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
     * for details over the differences between `_.debounce` and `_.throttle`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to debounce.
     * @param {number} [wait=0] The number of milliseconds to delay.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.leading=false]
     *  Specify invoking on the leading edge of the timeout.
     * @param {number} [options.maxWait]
     *  The maximum time `func` is allowed to be delayed before it's invoked.
     * @param {boolean} [options.trailing=true]
     *  Specify invoking on the trailing edge of the timeout.
     * @returns {Function} Returns the new debounced function.
     * @example
     *
     * // Avoid costly calculations while the window size is in flux.
     * jQuery(window).on('resize', _.debounce(calculateLayout, 150));
     *
     * // Invoke `sendMail` when clicked, debouncing subsequent calls.
     * jQuery(element).on('click', _.debounce(sendMail, 300, {
     *   'leading': true,
     *   'trailing': false
     * }));
     *
     * // Ensure `batchLog` is invoked once after 1 second of debounced calls.
     * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });
     * var source = new EventSource('/stream');
     * jQuery(source).on('message', debounced);
     *
     * // Cancel the trailing debounced invocation.
     * jQuery(window).on('popstate', debounced.cancel);
     */
    function debounce(func, wait, options) {
      var lastArgs,
          lastThis,
          maxWait,
          result,
          timerId,
          lastCallTime,
          lastInvokeTime = 0,
          leading = false,
          maxing = false,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      wait = toNumber(wait) || 0;
      if (isObject(options)) {
        leading = !!options.leading;
        maxing = 'maxWait' in options;
        maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }

      function invokeFunc(time) {
        var args = lastArgs,
            thisArg = lastThis;

        lastArgs = lastThis = undefined;
        lastInvokeTime = time;
        result = func.apply(thisArg, args);
        return result;
      }

      function leadingEdge(time) {
        // Reset any `maxWait` timer.
        lastInvokeTime = time;
        // Start the timer for the trailing edge.
        timerId = setTimeout(timerExpired, wait);
        // Invoke the leading edge.
        return leading ? invokeFunc(time) : result;
      }

      function remainingWait(time) {
        var timeSinceLastCall = time - lastCallTime,
            timeSinceLastInvoke = time - lastInvokeTime,
            timeWaiting = wait - timeSinceLastCall;

        return maxing
          ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)
          : timeWaiting;
      }

      function shouldInvoke(time) {
        var timeSinceLastCall = time - lastCallTime,
            timeSinceLastInvoke = time - lastInvokeTime;

        // Either this is the first call, activity has stopped and we're at the
        // trailing edge, the system time has gone backwards and we're treating
        // it as the trailing edge, or we've hit the `maxWait` limit.
        return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||
          (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));
      }

      function timerExpired() {
        var time = now();
        if (shouldInvoke(time)) {
          return trailingEdge(time);
        }
        // Restart the timer.
        timerId = setTimeout(timerExpired, remainingWait(time));
      }

      function trailingEdge(time) {
        timerId = undefined;

        // Only invoke if we have `lastArgs` which means `func` has been
        // debounced at least once.
        if (trailing && lastArgs) {
          return invokeFunc(time);
        }
        lastArgs = lastThis = undefined;
        return result;
      }

      function cancel() {
        if (timerId !== undefined) {
          clearTimeout(timerId);
        }
        lastInvokeTime = 0;
        lastArgs = lastCallTime = lastThis = timerId = undefined;
      }

      function flush() {
        return timerId === undefined ? result : trailingEdge(now());
      }

      function debounced() {
        var time = now(),
            isInvoking = shouldInvoke(time);

        lastArgs = arguments;
        lastThis = this;
        lastCallTime = time;

        if (isInvoking) {
          if (timerId === undefined) {
            return leadingEdge(lastCallTime);
          }
          if (maxing) {
            // Handle invocations in a tight loop.
            clearTimeout(timerId);
            timerId = setTimeout(timerExpired, wait);
            return invokeFunc(lastCallTime);
          }
        }
        if (timerId === undefined) {
          timerId = setTimeout(timerExpired, wait);
        }
        return result;
      }
      debounced.cancel = cancel;
      debounced.flush = flush;
      return debounced;
    }

    /**
     * Defers invoking the `func` until the current call stack has cleared. Any
     * additional arguments are provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to defer.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.defer(function(text) {
     *   console.log(text);
     * }, 'deferred');
     * // => Logs 'deferred' after one millisecond.
     */
    var defer = baseRest(function(func, args) {
      return baseDelay(func, 1, args);
    });

    /**
     * Invokes `func` after `wait` milliseconds. Any additional arguments are
     * provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to delay.
     * @param {number} wait The number of milliseconds to delay invocation.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {number} Returns the timer id.
     * @example
     *
     * _.delay(function(text) {
     *   console.log(text);
     * }, 1000, 'later');
     * // => Logs 'later' after one second.
     */
    var delay = baseRest(function(func, wait, args) {
      return baseDelay(func, toNumber(wait) || 0, args);
    });

    /**
     * Creates a function that invokes `func` with arguments reversed.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to flip arguments for.
     * @returns {Function} Returns the new flipped function.
     * @example
     *
     * var flipped = _.flip(function() {
     *   return _.toArray(arguments);
     * });
     *
     * flipped('a', 'b', 'c', 'd');
     * // => ['d', 'c', 'b', 'a']
     */
    function flip(func) {
      return createWrap(func, WRAP_FLIP_FLAG);
    }

    /**
     * Creates a function that memoizes the result of `func`. If `resolver` is
     * provided, it determines the cache key for storing the result based on the
     * arguments provided to the memoized function. By default, the first argument
     * provided to the memoized function is used as the map cache key. The `func`
     * is invoked with the `this` binding of the memoized function.
     *
     * **Note:** The cache is exposed as the `cache` property on the memoized
     * function. Its creation may be customized by replacing the `_.memoize.Cache`
     * constructor with one whose instances implement the
     * [`Map`](http://ecma-international.org/ecma-262/7.0/#sec-properties-of-the-map-prototype-object)
     * method interface of `clear`, `delete`, `get`, `has`, and `set`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to have its output memoized.
     * @param {Function} [resolver] The function to resolve the cache key.
     * @returns {Function} Returns the new memoized function.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     * var other = { 'c': 3, 'd': 4 };
     *
     * var values = _.memoize(_.values);
     * values(object);
     * // => [1, 2]
     *
     * values(other);
     * // => [3, 4]
     *
     * object.a = 2;
     * values(object);
     * // => [1, 2]
     *
     * // Modify the result cache.
     * values.cache.set(object, ['a', 'b']);
     * values(object);
     * // => ['a', 'b']
     *
     * // Replace `_.memoize.Cache`.
     * _.memoize.Cache = WeakMap;
     */
    function memoize(func, resolver) {
      if (typeof func != 'function' || (resolver != null && typeof resolver != 'function')) {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      var memoized = function() {
        var args = arguments,
            key = resolver ? resolver.apply(this, args) : args[0],
            cache = memoized.cache;

        if (cache.has(key)) {
          return cache.get(key);
        }
        var result = func.apply(this, args);
        memoized.cache = cache.set(key, result) || cache;
        return result;
      };
      memoized.cache = new (memoize.Cache || MapCache);
      return memoized;
    }

    // Expose `MapCache`.
    memoize.Cache = MapCache;

    /**
     * Creates a function that negates the result of the predicate `func`. The
     * `func` predicate is invoked with the `this` binding and arguments of the
     * created function.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} predicate The predicate to negate.
     * @returns {Function} Returns the new negated function.
     * @example
     *
     * function isEven(n) {
     *   return n % 2 == 0;
     * }
     *
     * _.filter([1, 2, 3, 4, 5, 6], _.negate(isEven));
     * // => [1, 3, 5]
     */
    function negate(predicate) {
      if (typeof predicate != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      return function() {
        var args = arguments;
        switch (args.length) {
          case 0: return !predicate.call(this);
          case 1: return !predicate.call(this, args[0]);
          case 2: return !predicate.call(this, args[0], args[1]);
          case 3: return !predicate.call(this, args[0], args[1], args[2]);
        }
        return !predicate.apply(this, args);
      };
    }

    /**
     * Creates a function that is restricted to invoking `func` once. Repeat calls
     * to the function return the value of the first invocation. The `func` is
     * invoked with the `this` binding and arguments of the created function.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to restrict.
     * @returns {Function} Returns the new restricted function.
     * @example
     *
     * var initialize = _.once(createApplication);
     * initialize();
     * initialize();
     * // => `createApplication` is invoked once
     */
    function once(func) {
      return before(2, func);
    }

    /**
     * Creates a function that invokes `func` with its arguments transformed.
     *
     * @static
     * @since 4.0.0
     * @memberOf _
     * @category Function
     * @param {Function} func The function to wrap.
     * @param {...(Function|Function[])} [transforms=[_.identity]]
     *  The argument transforms.
     * @returns {Function} Returns the new function.
     * @example
     *
     * function doubled(n) {
     *   return n * 2;
     * }
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var func = _.overArgs(function(x, y) {
     *   return [x, y];
     * }, [square, doubled]);
     *
     * func(9, 3);
     * // => [81, 6]
     *
     * func(10, 5);
     * // => [100, 10]
     */
    var overArgs = castRest(function(func, transforms) {
      transforms = (transforms.length == 1 && isArray(transforms[0]))
        ? arrayMap(transforms[0], baseUnary(getIteratee()))
        : arrayMap(baseFlatten(transforms, 1), baseUnary(getIteratee()));

      var funcsLength = transforms.length;
      return baseRest(function(args) {
        var index = -1,
            length = nativeMin(args.length, funcsLength);

        while (++index < length) {
          args[index] = transforms[index].call(this, args[index]);
        }
        return apply(func, this, args);
      });
    });

    /**
     * Creates a function that invokes `func` with `partials` prepended to the
     * arguments it receives. This method is like `_.bind` except it does **not**
     * alter the `this` binding.
     *
     * The `_.partial.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method doesn't set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @since 0.2.0
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * function greet(greeting, name) {
     *   return greeting + ' ' + name;
     * }
     *
     * var sayHelloTo = _.partial(greet, 'hello');
     * sayHelloTo('fred');
     * // => 'hello fred'
     *
     * // Partially applied with placeholders.
     * var greetFred = _.partial(greet, _, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     */
    var partial = baseRest(function(func, partials) {
      var holders = replaceHolders(partials, getHolder(partial));
      return createWrap(func, WRAP_PARTIAL_FLAG, undefined, partials, holders);
    });

    /**
     * This method is like `_.partial` except that partially applied arguments
     * are appended to the arguments it receives.
     *
     * The `_.partialRight.placeholder` value, which defaults to `_` in monolithic
     * builds, may be used as a placeholder for partially applied arguments.
     *
     * **Note:** This method doesn't set the "length" property of partially
     * applied functions.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Function
     * @param {Function} func The function to partially apply arguments to.
     * @param {...*} [partials] The arguments to be partially applied.
     * @returns {Function} Returns the new partially applied function.
     * @example
     *
     * function greet(greeting, name) {
     *   return greeting + ' ' + name;
     * }
     *
     * var greetFred = _.partialRight(greet, 'fred');
     * greetFred('hi');
     * // => 'hi fred'
     *
     * // Partially applied with placeholders.
     * var sayHelloTo = _.partialRight(greet, 'hello', _);
     * sayHelloTo('fred');
     * // => 'hello fred'
     */
    var partialRight = baseRest(function(func, partials) {
      var holders = replaceHolders(partials, getHolder(partialRight));
      return createWrap(func, WRAP_PARTIAL_RIGHT_FLAG, undefined, partials, holders);
    });

    /**
     * Creates a function that invokes `func` with arguments arranged according
     * to the specified `indexes` where the argument value at the first index is
     * provided as the first argument, the argument value at the second index is
     * provided as the second argument, and so on.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Function
     * @param {Function} func The function to rearrange arguments for.
     * @param {...(number|number[])} indexes The arranged argument indexes.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var rearged = _.rearg(function(a, b, c) {
     *   return [a, b, c];
     * }, [2, 0, 1]);
     *
     * rearged('b', 'c', 'a')
     * // => ['a', 'b', 'c']
     */
    var rearg = flatRest(function(func, indexes) {
      return createWrap(func, WRAP_REARG_FLAG, undefined, undefined, undefined, indexes);
    });

    /**
     * Creates a function that invokes `func` with the `this` binding of the
     * created function and arguments from `start` and beyond provided as
     * an array.
     *
     * **Note:** This method is based on the
     * [rest parameter](https://mdn.io/rest_parameters).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to apply a rest parameter to.
     * @param {number} [start=func.length-1] The start position of the rest parameter.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.rest(function(what, names) {
     *   return what + ' ' + _.initial(names).join(', ') +
     *     (_.size(names) > 1 ? ', & ' : '') + _.last(names);
     * });
     *
     * say('hello', 'fred', 'barney', 'pebbles');
     * // => 'hello fred, barney, & pebbles'
     */
    function rest(func, start) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      start = start === undefined ? start : toInteger(start);
      return baseRest(func, start);
    }

    /**
     * Creates a function that invokes `func` with the `this` binding of the
     * create function and an array of arguments much like
     * [`Function#apply`](http://www.ecma-international.org/ecma-262/7.0/#sec-function.prototype.apply).
     *
     * **Note:** This method is based on the
     * [spread operator](https://mdn.io/spread_operator).
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Function
     * @param {Function} func The function to spread arguments over.
     * @param {number} [start=0] The start position of the spread.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var say = _.spread(function(who, what) {
     *   return who + ' says ' + what;
     * });
     *
     * say(['fred', 'hello']);
     * // => 'fred says hello'
     *
     * var numbers = Promise.all([
     *   Promise.resolve(40),
     *   Promise.resolve(36)
     * ]);
     *
     * numbers.then(_.spread(function(x, y) {
     *   return x + y;
     * }));
     * // => a Promise of 76
     */
    function spread(func, start) {
      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      start = start == null ? 0 : nativeMax(toInteger(start), 0);
      return baseRest(function(args) {
        var array = args[start],
            otherArgs = castSlice(args, 0, start);

        if (array) {
          arrayPush(otherArgs, array);
        }
        return apply(func, this, otherArgs);
      });
    }

    /**
     * Creates a throttled function that only invokes `func` at most once per
     * every `wait` milliseconds. The throttled function comes with a `cancel`
     * method to cancel delayed `func` invocations and a `flush` method to
     * immediately invoke them. Provide `options` to indicate whether `func`
     * should be invoked on the leading and/or trailing edge of the `wait`
     * timeout. The `func` is invoked with the last arguments provided to the
     * throttled function. Subsequent calls to the throttled function return the
     * result of the last `func` invocation.
     *
     * **Note:** If `leading` and `trailing` options are `true`, `func` is
     * invoked on the trailing edge of the timeout only if the throttled function
     * is invoked more than once during the `wait` timeout.
     *
     * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred
     * until to the next tick, similar to `setTimeout` with a timeout of `0`.
     *
     * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)
     * for details over the differences between `_.throttle` and `_.debounce`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {Function} func The function to throttle.
     * @param {number} [wait=0] The number of milliseconds to throttle invocations to.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.leading=true]
     *  Specify invoking on the leading edge of the timeout.
     * @param {boolean} [options.trailing=true]
     *  Specify invoking on the trailing edge of the timeout.
     * @returns {Function} Returns the new throttled function.
     * @example
     *
     * // Avoid excessively updating the position while scrolling.
     * jQuery(window).on('scroll', _.throttle(updatePosition, 100));
     *
     * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.
     * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });
     * jQuery(element).on('click', throttled);
     *
     * // Cancel the trailing throttled invocation.
     * jQuery(window).on('popstate', throttled.cancel);
     */
    function throttle(func, wait, options) {
      var leading = true,
          trailing = true;

      if (typeof func != 'function') {
        throw new TypeError(FUNC_ERROR_TEXT);
      }
      if (isObject(options)) {
        leading = 'leading' in options ? !!options.leading : leading;
        trailing = 'trailing' in options ? !!options.trailing : trailing;
      }
      return debounce(func, wait, {
        'leading': leading,
        'maxWait': wait,
        'trailing': trailing
      });
    }

    /**
     * Creates a function that accepts up to one argument, ignoring any
     * additional arguments.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Function
     * @param {Function} func The function to cap arguments for.
     * @returns {Function} Returns the new capped function.
     * @example
     *
     * _.map(['6', '8', '10'], _.unary(parseInt));
     * // => [6, 8, 10]
     */
    function unary(func) {
      return ary(func, 1);
    }

    /**
     * Creates a function that provides `value` to `wrapper` as its first
     * argument. Any additional arguments provided to the function are appended
     * to those provided to the `wrapper`. The wrapper is invoked with the `this`
     * binding of the created function.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Function
     * @param {*} value The value to wrap.
     * @param {Function} [wrapper=identity] The wrapper function.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var p = _.wrap(_.escape, function(func, text) {
     *   return '<p>' + func(text) + '</p>';
     * });
     *
     * p('fred, barney, & pebbles');
     * // => '<p>fred, barney, &amp; pebbles</p>'
     */
    function wrap(value, wrapper) {
      return partial(castFunction(wrapper), value);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Casts `value` as an array if it's not one.
     *
     * @static
     * @memberOf _
     * @since 4.4.0
     * @category Lang
     * @param {*} value The value to inspect.
     * @returns {Array} Returns the cast array.
     * @example
     *
     * _.castArray(1);
     * // => [1]
     *
     * _.castArray({ 'a': 1 });
     * // => [{ 'a': 1 }]
     *
     * _.castArray('abc');
     * // => ['abc']
     *
     * _.castArray(null);
     * // => [null]
     *
     * _.castArray(undefined);
     * // => [undefined]
     *
     * _.castArray();
     * // => []
     *
     * var array = [1, 2, 3];
     * console.log(_.castArray(array) === array);
     * // => true
     */
    function castArray() {
      if (!arguments.length) {
        return [];
      }
      var value = arguments[0];
      return isArray(value) ? value : [value];
    }

    /**
     * Creates a shallow clone of `value`.
     *
     * **Note:** This method is loosely based on the
     * [structured clone algorithm](https://mdn.io/Structured_clone_algorithm)
     * and supports cloning arrays, array buffers, booleans, date objects, maps,
     * numbers, `Object` objects, regexes, sets, strings, symbols, and typed
     * arrays. The own enumerable properties of `arguments` objects are cloned
     * as plain objects. An empty object is returned for uncloneable values such
     * as error objects, functions, DOM nodes, and WeakMaps.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to clone.
     * @returns {*} Returns the cloned value.
     * @see _.cloneDeep
     * @example
     *
     * var objects = [{ 'a': 1 }, { 'b': 2 }];
     *
     * var shallow = _.clone(objects);
     * console.log(shallow[0] === objects[0]);
     * // => true
     */
    function clone(value) {
      return baseClone(value, CLONE_SYMBOLS_FLAG);
    }

    /**
     * This method is like `_.clone` except that it accepts `customizer` which
     * is invoked to produce the cloned value. If `customizer` returns `undefined`,
     * cloning is handled by the method instead. The `customizer` is invoked with
     * up to four arguments; (value [, index|key, object, stack]).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to clone.
     * @param {Function} [customizer] The function to customize cloning.
     * @returns {*} Returns the cloned value.
     * @see _.cloneDeepWith
     * @example
     *
     * function customizer(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(false);
     *   }
     * }
     *
     * var el = _.cloneWith(document.body, customizer);
     *
     * console.log(el === document.body);
     * // => false
     * console.log(el.nodeName);
     * // => 'BODY'
     * console.log(el.childNodes.length);
     * // => 0
     */
    function cloneWith(value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseClone(value, CLONE_SYMBOLS_FLAG, customizer);
    }

    /**
     * This method is like `_.clone` except that it recursively clones `value`.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Lang
     * @param {*} value The value to recursively clone.
     * @returns {*} Returns the deep cloned value.
     * @see _.clone
     * @example
     *
     * var objects = [{ 'a': 1 }, { 'b': 2 }];
     *
     * var deep = _.cloneDeep(objects);
     * console.log(deep[0] === objects[0]);
     * // => false
     */
    function cloneDeep(value) {
      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG);
    }

    /**
     * This method is like `_.cloneWith` except that it recursively clones `value`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to recursively clone.
     * @param {Function} [customizer] The function to customize cloning.
     * @returns {*} Returns the deep cloned value.
     * @see _.cloneWith
     * @example
     *
     * function customizer(value) {
     *   if (_.isElement(value)) {
     *     return value.cloneNode(true);
     *   }
     * }
     *
     * var el = _.cloneDeepWith(document.body, customizer);
     *
     * console.log(el === document.body);
     * // => false
     * console.log(el.nodeName);
     * // => 'BODY'
     * console.log(el.childNodes.length);
     * // => 20
     */
    function cloneDeepWith(value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseClone(value, CLONE_DEEP_FLAG | CLONE_SYMBOLS_FLAG, customizer);
    }

    /**
     * Checks if `object` conforms to `source` by invoking the predicate
     * properties of `source` with the corresponding property values of `object`.
     *
     * **Note:** This method is equivalent to `_.conforms` when `source` is
     * partially applied.
     *
     * @static
     * @memberOf _
     * @since 4.14.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property predicates to conform to.
     * @returns {boolean} Returns `true` if `object` conforms, else `false`.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     *
     * _.conformsTo(object, { 'b': function(n) { return n > 1; } });
     * // => true
     *
     * _.conformsTo(object, { 'b': function(n) { return n > 2; } });
     * // => false
     */
    function conformsTo(object, source) {
      return source == null || baseConformsTo(object, source, keys(source));
    }

    /**
     * Performs a
     * [`SameValueZero`](http://ecma-international.org/ecma-262/7.0/#sec-samevaluezero)
     * comparison between two values to determine if they are equivalent.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * var object = { 'a': 1 };
     * var other = { 'a': 1 };
     *
     * _.eq(object, object);
     * // => true
     *
     * _.eq(object, other);
     * // => false
     *
     * _.eq('a', 'a');
     * // => true
     *
     * _.eq('a', Object('a'));
     * // => false
     *
     * _.eq(NaN, NaN);
     * // => true
     */
    function eq(value, other) {
      return value === other || (value !== value && other !== other);
    }

    /**
     * Checks if `value` is greater than `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than `other`,
     *  else `false`.
     * @see _.lt
     * @example
     *
     * _.gt(3, 1);
     * // => true
     *
     * _.gt(3, 3);
     * // => false
     *
     * _.gt(1, 3);
     * // => false
     */
    var gt = createRelationalOperation(baseGt);

    /**
     * Checks if `value` is greater than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is greater than or equal to
     *  `other`, else `false`.
     * @see _.lte
     * @example
     *
     * _.gte(3, 1);
     * // => true
     *
     * _.gte(3, 3);
     * // => true
     *
     * _.gte(1, 3);
     * // => false
     */
    var gte = createRelationalOperation(function(value, other) {
      return value >= other;
    });

    /**
     * Checks if `value` is likely an `arguments` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an `arguments` object,
     *  else `false`.
     * @example
     *
     * _.isArguments(function() { return arguments; }());
     * // => true
     *
     * _.isArguments([1, 2, 3]);
     * // => false
     */
    var isArguments = baseIsArguments(function() { return arguments; }()) ? baseIsArguments : function(value) {
      return isObjectLike(value) && hasOwnProperty.call(value, 'callee') &&
        !propertyIsEnumerable.call(value, 'callee');
    };

    /**
     * Checks if `value` is classified as an `Array` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array, else `false`.
     * @example
     *
     * _.isArray([1, 2, 3]);
     * // => true
     *
     * _.isArray(document.body.children);
     * // => false
     *
     * _.isArray('abc');
     * // => false
     *
     * _.isArray(_.noop);
     * // => false
     */
    var isArray = Array.isArray;

    /**
     * Checks if `value` is classified as an `ArrayBuffer` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array buffer, else `false`.
     * @example
     *
     * _.isArrayBuffer(new ArrayBuffer(2));
     * // => true
     *
     * _.isArrayBuffer(new Array(2));
     * // => false
     */
    var isArrayBuffer = nodeIsArrayBuffer ? baseUnary(nodeIsArrayBuffer) : baseIsArrayBuffer;

    /**
     * Checks if `value` is array-like. A value is considered array-like if it's
     * not a function and has a `value.length` that's an integer greater than or
     * equal to `0` and less than or equal to `Number.MAX_SAFE_INTEGER`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is array-like, else `false`.
     * @example
     *
     * _.isArrayLike([1, 2, 3]);
     * // => true
     *
     * _.isArrayLike(document.body.children);
     * // => true
     *
     * _.isArrayLike('abc');
     * // => true
     *
     * _.isArrayLike(_.noop);
     * // => false
     */
    function isArrayLike(value) {
      return value != null && isLength(value.length) && !isFunction(value);
    }

    /**
     * This method is like `_.isArrayLike` except that it also checks if `value`
     * is an object.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an array-like object,
     *  else `false`.
     * @example
     *
     * _.isArrayLikeObject([1, 2, 3]);
     * // => true
     *
     * _.isArrayLikeObject(document.body.children);
     * // => true
     *
     * _.isArrayLikeObject('abc');
     * // => false
     *
     * _.isArrayLikeObject(_.noop);
     * // => false
     */
    function isArrayLikeObject(value) {
      return isObjectLike(value) && isArrayLike(value);
    }

    /**
     * Checks if `value` is classified as a boolean primitive or object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a boolean, else `false`.
     * @example
     *
     * _.isBoolean(false);
     * // => true
     *
     * _.isBoolean(null);
     * // => false
     */
    function isBoolean(value) {
      return value === true || value === false ||
        (isObjectLike(value) && baseGetTag(value) == boolTag);
    }

    /**
     * Checks if `value` is a buffer.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a buffer, else `false`.
     * @example
     *
     * _.isBuffer(new Buffer(2));
     * // => true
     *
     * _.isBuffer(new Uint8Array(2));
     * // => false
     */
    var isBuffer = nativeIsBuffer || stubFalse;

    /**
     * Checks if `value` is classified as a `Date` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a date object, else `false`.
     * @example
     *
     * _.isDate(new Date);
     * // => true
     *
     * _.isDate('Mon April 23 2012');
     * // => false
     */
    var isDate = nodeIsDate ? baseUnary(nodeIsDate) : baseIsDate;

    /**
     * Checks if `value` is likely a DOM element.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a DOM element, else `false`.
     * @example
     *
     * _.isElement(document.body);
     * // => true
     *
     * _.isElement('<body>');
     * // => false
     */
    function isElement(value) {
      return isObjectLike(value) && value.nodeType === 1 && !isPlainObject(value);
    }

    /**
     * Checks if `value` is an empty object, collection, map, or set.
     *
     * Objects are considered empty if they have no own enumerable string keyed
     * properties.
     *
     * Array-like values such as `arguments` objects, arrays, buffers, strings, or
     * jQuery-like collections are considered empty if they have a `length` of `0`.
     * Similarly, maps and sets are considered empty if they have a `size` of `0`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is empty, else `false`.
     * @example
     *
     * _.isEmpty(null);
     * // => true
     *
     * _.isEmpty(true);
     * // => true
     *
     * _.isEmpty(1);
     * // => true
     *
     * _.isEmpty([1, 2, 3]);
     * // => false
     *
     * _.isEmpty({ 'a': 1 });
     * // => false
     */
    function isEmpty(value) {
      if (value == null) {
        return true;
      }
      if (isArrayLike(value) &&
          (isArray(value) || typeof value == 'string' || typeof value.splice == 'function' ||
            isBuffer(value) || isTypedArray(value) || isArguments(value))) {
        return !value.length;
      }
      var tag = getTag(value);
      if (tag == mapTag || tag == setTag) {
        return !value.size;
      }
      if (isPrototype(value)) {
        return !baseKeys(value).length;
      }
      for (var key in value) {
        if (hasOwnProperty.call(value, key)) {
          return false;
        }
      }
      return true;
    }

    /**
     * Performs a deep comparison between two values to determine if they are
     * equivalent.
     *
     * **Note:** This method supports comparing arrays, array buffers, booleans,
     * date objects, error objects, maps, numbers, `Object` objects, regexes,
     * sets, strings, symbols, and typed arrays. `Object` objects are compared
     * by their own, not inherited, enumerable properties. Functions and DOM
     * nodes are compared by strict equality, i.e. `===`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * var object = { 'a': 1 };
     * var other = { 'a': 1 };
     *
     * _.isEqual(object, other);
     * // => true
     *
     * object === other;
     * // => false
     */
    function isEqual(value, other) {
      return baseIsEqual(value, other);
    }

    /**
     * This method is like `_.isEqual` except that it accepts `customizer` which
     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
     * are handled by the method instead. The `customizer` is invoked with up to
     * six arguments: (objValue, othValue [, index|key, object, other, stack]).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if the values are equivalent, else `false`.
     * @example
     *
     * function isGreeting(value) {
     *   return /^h(?:i|ello)$/.test(value);
     * }
     *
     * function customizer(objValue, othValue) {
     *   if (isGreeting(objValue) && isGreeting(othValue)) {
     *     return true;
     *   }
     * }
     *
     * var array = ['hello', 'goodbye'];
     * var other = ['hi', 'goodbye'];
     *
     * _.isEqualWith(array, other, customizer);
     * // => true
     */
    function isEqualWith(value, other, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      var result = customizer ? customizer(value, other) : undefined;
      return result === undefined ? baseIsEqual(value, other, undefined, customizer) : !!result;
    }

    /**
     * Checks if `value` is an `Error`, `EvalError`, `RangeError`, `ReferenceError`,
     * `SyntaxError`, `TypeError`, or `URIError` object.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an error object, else `false`.
     * @example
     *
     * _.isError(new Error);
     * // => true
     *
     * _.isError(Error);
     * // => false
     */
    function isError(value) {
      if (!isObjectLike(value)) {
        return false;
      }
      var tag = baseGetTag(value);
      return tag == errorTag || tag == domExcTag ||
        (typeof value.message == 'string' && typeof value.name == 'string' && !isPlainObject(value));
    }

    /**
     * Checks if `value` is a finite primitive number.
     *
     * **Note:** This method is based on
     * [`Number.isFinite`](https://mdn.io/Number/isFinite).
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a finite number, else `false`.
     * @example
     *
     * _.isFinite(3);
     * // => true
     *
     * _.isFinite(Number.MIN_VALUE);
     * // => true
     *
     * _.isFinite(Infinity);
     * // => false
     *
     * _.isFinite('3');
     * // => false
     */
    function isFinite(value) {
      return typeof value == 'number' && nativeIsFinite(value);
    }

    /**
     * Checks if `value` is classified as a `Function` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a function, else `false`.
     * @example
     *
     * _.isFunction(_);
     * // => true
     *
     * _.isFunction(/abc/);
     * // => false
     */
    function isFunction(value) {
      if (!isObject(value)) {
        return false;
      }
      // The use of `Object#toString` avoids issues with the `typeof` operator
      // in Safari 9 which returns 'object' for typed arrays and other constructors.
      var tag = baseGetTag(value);
      return tag == funcTag || tag == genTag || tag == asyncTag || tag == proxyTag;
    }

    /**
     * Checks if `value` is an integer.
     *
     * **Note:** This method is based on
     * [`Number.isInteger`](https://mdn.io/Number/isInteger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an integer, else `false`.
     * @example
     *
     * _.isInteger(3);
     * // => true
     *
     * _.isInteger(Number.MIN_VALUE);
     * // => false
     *
     * _.isInteger(Infinity);
     * // => false
     *
     * _.isInteger('3');
     * // => false
     */
    function isInteger(value) {
      return typeof value == 'number' && value == toInteger(value);
    }

    /**
     * Checks if `value` is a valid array-like length.
     *
     * **Note:** This method is loosely based on
     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a valid length, else `false`.
     * @example
     *
     * _.isLength(3);
     * // => true
     *
     * _.isLength(Number.MIN_VALUE);
     * // => false
     *
     * _.isLength(Infinity);
     * // => false
     *
     * _.isLength('3');
     * // => false
     */
    function isLength(value) {
      return typeof value == 'number' &&
        value > -1 && value % 1 == 0 && value <= MAX_SAFE_INTEGER;
    }

    /**
     * Checks if `value` is the
     * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)
     * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is an object, else `false`.
     * @example
     *
     * _.isObject({});
     * // => true
     *
     * _.isObject([1, 2, 3]);
     * // => true
     *
     * _.isObject(_.noop);
     * // => true
     *
     * _.isObject(null);
     * // => false
     */
    function isObject(value) {
      var type = typeof value;
      return value != null && (type == 'object' || type == 'function');
    }

    /**
     * Checks if `value` is object-like. A value is object-like if it's not `null`
     * and has a `typeof` result of "object".
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is object-like, else `false`.
     * @example
     *
     * _.isObjectLike({});
     * // => true
     *
     * _.isObjectLike([1, 2, 3]);
     * // => true
     *
     * _.isObjectLike(_.noop);
     * // => false
     *
     * _.isObjectLike(null);
     * // => false
     */
    function isObjectLike(value) {
      return value != null && typeof value == 'object';
    }

    /**
     * Checks if `value` is classified as a `Map` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a map, else `false`.
     * @example
     *
     * _.isMap(new Map);
     * // => true
     *
     * _.isMap(new WeakMap);
     * // => false
     */
    var isMap = nodeIsMap ? baseUnary(nodeIsMap) : baseIsMap;

    /**
     * Performs a partial deep comparison between `object` and `source` to
     * determine if `object` contains equivalent property values.
     *
     * **Note:** This method is equivalent to `_.matches` when `source` is
     * partially applied.
     *
     * Partial comparisons will match empty array and empty object `source`
     * values against any array or object value, respectively. See `_.isEqual`
     * for a list of supported value comparisons.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     * @example
     *
     * var object = { 'a': 1, 'b': 2 };
     *
     * _.isMatch(object, { 'b': 2 });
     * // => true
     *
     * _.isMatch(object, { 'b': 1 });
     * // => false
     */
    function isMatch(object, source) {
      return object === source || baseIsMatch(object, source, getMatchData(source));
    }

    /**
     * This method is like `_.isMatch` except that it accepts `customizer` which
     * is invoked to compare values. If `customizer` returns `undefined`, comparisons
     * are handled by the method instead. The `customizer` is invoked with five
     * arguments: (objValue, srcValue, index|key, object, source).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {Object} object The object to inspect.
     * @param {Object} source The object of property values to match.
     * @param {Function} [customizer] The function to customize comparisons.
     * @returns {boolean} Returns `true` if `object` is a match, else `false`.
     * @example
     *
     * function isGreeting(value) {
     *   return /^h(?:i|ello)$/.test(value);
     * }
     *
     * function customizer(objValue, srcValue) {
     *   if (isGreeting(objValue) && isGreeting(srcValue)) {
     *     return true;
     *   }
     * }
     *
     * var object = { 'greeting': 'hello' };
     * var source = { 'greeting': 'hi' };
     *
     * _.isMatchWith(object, source, customizer);
     * // => true
     */
    function isMatchWith(object, source, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return baseIsMatch(object, source, getMatchData(source), customizer);
    }

    /**
     * Checks if `value` is `NaN`.
     *
     * **Note:** This method is based on
     * [`Number.isNaN`](https://mdn.io/Number/isNaN) and is not the same as
     * global [`isNaN`](https://mdn.io/isNaN) which returns `true` for
     * `undefined` and other non-number values.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `NaN`, else `false`.
     * @example
     *
     * _.isNaN(NaN);
     * // => true
     *
     * _.isNaN(new Number(NaN));
     * // => true
     *
     * isNaN(undefined);
     * // => true
     *
     * _.isNaN(undefined);
     * // => false
     */
    function isNaN(value) {
      // An `NaN` primitive is the only value that is not equal to itself.
      // Perform the `toStringTag` check first to avoid errors with some
      // ActiveX objects in IE.
      return isNumber(value) && value != +value;
    }

    /**
     * Checks if `value` is a pristine native function.
     *
     * **Note:** This method can't reliably detect native functions in the presence
     * of the core-js package because core-js circumvents this kind of detection.
     * Despite multiple requests, the core-js maintainer has made it clear: any
     * attempt to fix the detection will be obstructed. As a result, we're left
     * with little choice but to throw an error. Unfortunately, this also affects
     * packages, like [babel-polyfill](https://www.npmjs.com/package/babel-polyfill),
     * which rely on core-js.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a native function,
     *  else `false`.
     * @example
     *
     * _.isNative(Array.prototype.push);
     * // => true
     *
     * _.isNative(_);
     * // => false
     */
    function isNative(value) {
      if (isMaskable(value)) {
        throw new Error(CORE_ERROR_TEXT);
      }
      return baseIsNative(value);
    }

    /**
     * Checks if `value` is `null`.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `null`, else `false`.
     * @example
     *
     * _.isNull(null);
     * // => true
     *
     * _.isNull(void 0);
     * // => false
     */
    function isNull(value) {
      return value === null;
    }

    /**
     * Checks if `value` is `null` or `undefined`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is nullish, else `false`.
     * @example
     *
     * _.isNil(null);
     * // => true
     *
     * _.isNil(void 0);
     * // => true
     *
     * _.isNil(NaN);
     * // => false
     */
    function isNil(value) {
      return value == null;
    }

    /**
     * Checks if `value` is classified as a `Number` primitive or object.
     *
     * **Note:** To exclude `Infinity`, `-Infinity`, and `NaN`, which are
     * classified as numbers, use the `_.isFinite` method.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a number, else `false`.
     * @example
     *
     * _.isNumber(3);
     * // => true
     *
     * _.isNumber(Number.MIN_VALUE);
     * // => true
     *
     * _.isNumber(Infinity);
     * // => true
     *
     * _.isNumber('3');
     * // => false
     */
    function isNumber(value) {
      return typeof value == 'number' ||
        (isObjectLike(value) && baseGetTag(value) == numberTag);
    }

    /**
     * Checks if `value` is a plain object, that is, an object created by the
     * `Object` constructor or one with a `[[Prototype]]` of `null`.
     *
     * @static
     * @memberOf _
     * @since 0.8.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * _.isPlainObject(new Foo);
     * // => false
     *
     * _.isPlainObject([1, 2, 3]);
     * // => false
     *
     * _.isPlainObject({ 'x': 0, 'y': 0 });
     * // => true
     *
     * _.isPlainObject(Object.create(null));
     * // => true
     */
    function isPlainObject(value) {
      if (!isObjectLike(value) || baseGetTag(value) != objectTag) {
        return false;
      }
      var proto = getPrototype(value);
      if (proto === null) {
        return true;
      }
      var Ctor = hasOwnProperty.call(proto, 'constructor') && proto.constructor;
      return typeof Ctor == 'function' && Ctor instanceof Ctor &&
        funcToString.call(Ctor) == objectCtorString;
    }

    /**
     * Checks if `value` is classified as a `RegExp` object.
     *
     * @static
     * @memberOf _
     * @since 0.1.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a regexp, else `false`.
     * @example
     *
     * _.isRegExp(/abc/);
     * // => true
     *
     * _.isRegExp('/abc/');
     * // => false
     */
    var isRegExp = nodeIsRegExp ? baseUnary(nodeIsRegExp) : baseIsRegExp;

    /**
     * Checks if `value` is a safe integer. An integer is safe if it's an IEEE-754
     * double precision number which isn't the result of a rounded unsafe integer.
     *
     * **Note:** This method is based on
     * [`Number.isSafeInteger`](https://mdn.io/Number/isSafeInteger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a safe integer, else `false`.
     * @example
     *
     * _.isSafeInteger(3);
     * // => true
     *
     * _.isSafeInteger(Number.MIN_VALUE);
     * // => false
     *
     * _.isSafeInteger(Infinity);
     * // => false
     *
     * _.isSafeInteger('3');
     * // => false
     */
    function isSafeInteger(value) {
      return isInteger(value) && value >= -MAX_SAFE_INTEGER && value <= MAX_SAFE_INTEGER;
    }

    /**
     * Checks if `value` is classified as a `Set` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a set, else `false`.
     * @example
     *
     * _.isSet(new Set);
     * // => true
     *
     * _.isSet(new WeakSet);
     * // => false
     */
    var isSet = nodeIsSet ? baseUnary(nodeIsSet) : baseIsSet;

    /**
     * Checks if `value` is classified as a `String` primitive or object.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a string, else `false`.
     * @example
     *
     * _.isString('abc');
     * // => true
     *
     * _.isString(1);
     * // => false
     */
    function isString(value) {
      return typeof value == 'string' ||
        (!isArray(value) && isObjectLike(value) && baseGetTag(value) == stringTag);
    }

    /**
     * Checks if `value` is classified as a `Symbol` primitive or object.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.
     * @example
     *
     * _.isSymbol(Symbol.iterator);
     * // => true
     *
     * _.isSymbol('abc');
     * // => false
     */
    function isSymbol(value) {
      return typeof value == 'symbol' ||
        (isObjectLike(value) && baseGetTag(value) == symbolTag);
    }

    /**
     * Checks if `value` is classified as a typed array.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a typed array, else `false`.
     * @example
     *
     * _.isTypedArray(new Uint8Array);
     * // => true
     *
     * _.isTypedArray([]);
     * // => false
     */
    var isTypedArray = nodeIsTypedArray ? baseUnary(nodeIsTypedArray) : baseIsTypedArray;

    /**
     * Checks if `value` is `undefined`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is `undefined`, else `false`.
     * @example
     *
     * _.isUndefined(void 0);
     * // => true
     *
     * _.isUndefined(null);
     * // => false
     */
    function isUndefined(value) {
      return value === undefined;
    }

    /**
     * Checks if `value` is classified as a `WeakMap` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a weak map, else `false`.
     * @example
     *
     * _.isWeakMap(new WeakMap);
     * // => true
     *
     * _.isWeakMap(new Map);
     * // => false
     */
    function isWeakMap(value) {
      return isObjectLike(value) && getTag(value) == weakMapTag;
    }

    /**
     * Checks if `value` is classified as a `WeakSet` object.
     *
     * @static
     * @memberOf _
     * @since 4.3.0
     * @category Lang
     * @param {*} value The value to check.
     * @returns {boolean} Returns `true` if `value` is a weak set, else `false`.
     * @example
     *
     * _.isWeakSet(new WeakSet);
     * // => true
     *
     * _.isWeakSet(new Set);
     * // => false
     */
    function isWeakSet(value) {
      return isObjectLike(value) && baseGetTag(value) == weakSetTag;
    }

    /**
     * Checks if `value` is less than `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than `other`,
     *  else `false`.
     * @see _.gt
     * @example
     *
     * _.lt(1, 3);
     * // => true
     *
     * _.lt(3, 3);
     * // => false
     *
     * _.lt(3, 1);
     * // => false
     */
    var lt = createRelationalOperation(baseLt);

    /**
     * Checks if `value` is less than or equal to `other`.
     *
     * @static
     * @memberOf _
     * @since 3.9.0
     * @category Lang
     * @param {*} value The value to compare.
     * @param {*} other The other value to compare.
     * @returns {boolean} Returns `true` if `value` is less than or equal to
     *  `other`, else `false`.
     * @see _.gte
     * @example
     *
     * _.lte(1, 3);
     * // => true
     *
     * _.lte(3, 3);
     * // => true
     *
     * _.lte(3, 1);
     * // => false
     */
    var lte = createRelationalOperation(function(value, other) {
      return value <= other;
    });

    /**
     * Converts `value` to an array.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Array} Returns the converted array.
     * @example
     *
     * _.toArray({ 'a': 1, 'b': 2 });
     * // => [1, 2]
     *
     * _.toArray('abc');
     * // => ['a', 'b', 'c']
     *
     * _.toArray(1);
     * // => []
     *
     * _.toArray(null);
     * // => []
     */
    function toArray(value) {
      if (!value) {
        return [];
      }
      if (isArrayLike(value)) {
        return isString(value) ? stringToArray(value) : copyArray(value);
      }
      if (symIterator && value[symIterator]) {
        return iteratorToArray(value[symIterator]());
      }
      var tag = getTag(value),
          func = tag == mapTag ? mapToArray : (tag == setTag ? setToArray : values);

      return func(value);
    }

    /**
     * Converts `value` to a finite number.
     *
     * @static
     * @memberOf _
     * @since 4.12.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted number.
     * @example
     *
     * _.toFinite(3.2);
     * // => 3.2
     *
     * _.toFinite(Number.MIN_VALUE);
     * // => 5e-324
     *
     * _.toFinite(Infinity);
     * // => 1.7976931348623157e+308
     *
     * _.toFinite('3.2');
     * // => 3.2
     */
    function toFinite(value) {
      if (!value) {
        return value === 0 ? value : 0;
      }
      value = toNumber(value);
      if (value === INFINITY || value === -INFINITY) {
        var sign = (value < 0 ? -1 : 1);
        return sign * MAX_INTEGER;
      }
      return value === value ? value : 0;
    }

    /**
     * Converts `value` to an integer.
     *
     * **Note:** This method is loosely based on
     * [`ToInteger`](http://www.ecma-international.org/ecma-262/7.0/#sec-tointeger).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toInteger(3.2);
     * // => 3
     *
     * _.toInteger(Number.MIN_VALUE);
     * // => 0
     *
     * _.toInteger(Infinity);
     * // => 1.7976931348623157e+308
     *
     * _.toInteger('3.2');
     * // => 3
     */
    function toInteger(value) {
      var result = toFinite(value),
          remainder = result % 1;

      return result === result ? (remainder ? result - remainder : result) : 0;
    }

    /**
     * Converts `value` to an integer suitable for use as the length of an
     * array-like object.
     *
     * **Note:** This method is based on
     * [`ToLength`](http://ecma-international.org/ecma-262/7.0/#sec-tolength).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toLength(3.2);
     * // => 3
     *
     * _.toLength(Number.MIN_VALUE);
     * // => 0
     *
     * _.toLength(Infinity);
     * // => 4294967295
     *
     * _.toLength('3.2');
     * // => 3
     */
    function toLength(value) {
      return value ? baseClamp(toInteger(value), 0, MAX_ARRAY_LENGTH) : 0;
    }

    /**
     * Converts `value` to a number.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to process.
     * @returns {number} Returns the number.
     * @example
     *
     * _.toNumber(3.2);
     * // => 3.2
     *
     * _.toNumber(Number.MIN_VALUE);
     * // => 5e-324
     *
     * _.toNumber(Infinity);
     * // => Infinity
     *
     * _.toNumber('3.2');
     * // => 3.2
     */
    function toNumber(value) {
      if (typeof value == 'number') {
        return value;
      }
      if (isSymbol(value)) {
        return NAN;
      }
      if (isObject(value)) {
        var other = typeof value.valueOf == 'function' ? value.valueOf() : value;
        value = isObject(other) ? (other + '') : other;
      }
      if (typeof value != 'string') {
        return value === 0 ? value : +value;
      }
      value = baseTrim(value);
      var isBinary = reIsBinary.test(value);
      return (isBinary || reIsOctal.test(value))
        ? freeParseInt(value.slice(2), isBinary ? 2 : 8)
        : (reIsBadHex.test(value) ? NAN : +value);
    }

    /**
     * Converts `value` to a plain object flattening inherited enumerable string
     * keyed properties of `value` to own properties of the plain object.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {Object} Returns the converted plain object.
     * @example
     *
     * function Foo() {
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.assign({ 'a': 1 }, new Foo);
     * // => { 'a': 1, 'b': 2 }
     *
     * _.assign({ 'a': 1 }, _.toPlainObject(new Foo));
     * // => { 'a': 1, 'b': 2, 'c': 3 }
     */
    function toPlainObject(value) {
      return copyObject(value, keysIn(value));
    }

    /**
     * Converts `value` to a safe integer. A safe integer can be compared and
     * represented correctly.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.toSafeInteger(3.2);
     * // => 3
     *
     * _.toSafeInteger(Number.MIN_VALUE);
     * // => 0
     *
     * _.toSafeInteger(Infinity);
     * // => 9007199254740991
     *
     * _.toSafeInteger('3.2');
     * // => 3
     */
    function toSafeInteger(value) {
      return value
        ? baseClamp(toInteger(value), -MAX_SAFE_INTEGER, MAX_SAFE_INTEGER)
        : (value === 0 ? value : 0);
    }

    /**
     * Converts `value` to a string. An empty string is returned for `null`
     * and `undefined` values. The sign of `-0` is preserved.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Lang
     * @param {*} value The value to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.toString(null);
     * // => ''
     *
     * _.toString(-0);
     * // => '-0'
     *
     * _.toString([1, 2, 3]);
     * // => '1,2,3'
     */
    function toString(value) {
      return value == null ? '' : baseToString(value);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Assigns own enumerable string keyed properties of source objects to the
     * destination object. Source objects are applied from left to right.
     * Subsequent sources overwrite property assignments of previous sources.
     *
     * **Note:** This method mutates `object` and is loosely based on
     * [`Object.assign`](https://mdn.io/Object/assign).
     *
     * @static
     * @memberOf _
     * @since 0.10.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.assignIn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * function Bar() {
     *   this.c = 3;
     * }
     *
     * Foo.prototype.b = 2;
     * Bar.prototype.d = 4;
     *
     * _.assign({ 'a': 0 }, new Foo, new Bar);
     * // => { 'a': 1, 'c': 3 }
     */
    var assign = createAssigner(function(object, source) {
      if (isPrototype(source) || isArrayLike(source)) {
        copyObject(source, keys(source), object);
        return;
      }
      for (var key in source) {
        if (hasOwnProperty.call(source, key)) {
          assignValue(object, key, source[key]);
        }
      }
    });

    /**
     * This method is like `_.assign` except that it iterates over own and
     * inherited source properties.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias extend
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.assign
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     * }
     *
     * function Bar() {
     *   this.c = 3;
     * }
     *
     * Foo.prototype.b = 2;
     * Bar.prototype.d = 4;
     *
     * _.assignIn({ 'a': 0 }, new Foo, new Bar);
     * // => { 'a': 1, 'b': 2, 'c': 3, 'd': 4 }
     */
    var assignIn = createAssigner(function(object, source) {
      copyObject(source, keysIn(source), object);
    });

    /**
     * This method is like `_.assignIn` except that it accepts `customizer`
     * which is invoked to produce the assigned values. If `customizer` returns
     * `undefined`, assignment is handled by the method instead. The `customizer`
     * is invoked with five arguments: (objValue, srcValue, key, object, source).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias extendWith
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @see _.assignWith
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   return _.isUndefined(objValue) ? srcValue : objValue;
     * }
     *
     * var defaults = _.partialRight(_.assignInWith, customizer);
     *
     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var assignInWith = createAssigner(function(object, source, srcIndex, customizer) {
      copyObject(source, keysIn(source), object, customizer);
    });

    /**
     * This method is like `_.assign` except that it accepts `customizer`
     * which is invoked to produce the assigned values. If `customizer` returns
     * `undefined`, assignment is handled by the method instead. The `customizer`
     * is invoked with five arguments: (objValue, srcValue, key, object, source).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @see _.assignInWith
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   return _.isUndefined(objValue) ? srcValue : objValue;
     * }
     *
     * var defaults = _.partialRight(_.assignWith, customizer);
     *
     * defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var assignWith = createAssigner(function(object, source, srcIndex, customizer) {
      copyObject(source, keys(source), object, customizer);
    });

    /**
     * Creates an array of values corresponding to `paths` of `object`.
     *
     * @static
     * @memberOf _
     * @since 1.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Array} Returns the picked values.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }, 4] };
     *
     * _.at(object, ['a[0].b.c', 'a[1]']);
     * // => [3, 4]
     */
    var at = flatRest(baseAt);

    /**
     * Creates an object that inherits from the `prototype` object. If a
     * `properties` object is given, its own enumerable string keyed properties
     * are assigned to the created object.
     *
     * @static
     * @memberOf _
     * @since 2.3.0
     * @category Object
     * @param {Object} prototype The object to inherit from.
     * @param {Object} [properties] The properties to assign to the object.
     * @returns {Object} Returns the new object.
     * @example
     *
     * function Shape() {
     *   this.x = 0;
     *   this.y = 0;
     * }
     *
     * function Circle() {
     *   Shape.call(this);
     * }
     *
     * Circle.prototype = _.create(Shape.prototype, {
     *   'constructor': Circle
     * });
     *
     * var circle = new Circle;
     * circle instanceof Circle;
     * // => true
     *
     * circle instanceof Shape;
     * // => true
     */
    function create(prototype, properties) {
      var result = baseCreate(prototype);
      return properties == null ? result : baseAssign(result, properties);
    }

    /**
     * Assigns own and inherited enumerable string keyed properties of source
     * objects to the destination object for all destination properties that
     * resolve to `undefined`. Source objects are applied from left to right.
     * Once a property is set, additional values of the same property are ignored.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.defaultsDeep
     * @example
     *
     * _.defaults({ 'a': 1 }, { 'b': 2 }, { 'a': 3 });
     * // => { 'a': 1, 'b': 2 }
     */
    var defaults = baseRest(function(object, sources) {
      object = Object(object);

      var index = -1;
      var length = sources.length;
      var guard = length > 2 ? sources[2] : undefined;

      if (guard && isIterateeCall(sources[0], sources[1], guard)) {
        length = 1;
      }

      while (++index < length) {
        var source = sources[index];
        var props = keysIn(source);
        var propsIndex = -1;
        var propsLength = props.length;

        while (++propsIndex < propsLength) {
          var key = props[propsIndex];
          var value = object[key];

          if (value === undefined ||
              (eq(value, objectProto[key]) && !hasOwnProperty.call(object, key))) {
            object[key] = source[key];
          }
        }
      }

      return object;
    });

    /**
     * This method is like `_.defaults` except that it recursively assigns
     * default properties.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @see _.defaults
     * @example
     *
     * _.defaultsDeep({ 'a': { 'b': 2 } }, { 'a': { 'b': 1, 'c': 3 } });
     * // => { 'a': { 'b': 2, 'c': 3 } }
     */
    var defaultsDeep = baseRest(function(args) {
      args.push(undefined, customDefaultsMerge);
      return apply(mergeWith, undefined, args);
    });

    /**
     * This method is like `_.find` except that it returns the key of the first
     * element `predicate` returns truthy for instead of the element itself.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {string|undefined} Returns the key of the matched element,
     *  else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findKey(users, function(o) { return o.age < 40; });
     * // => 'barney' (iteration order is not guaranteed)
     *
     * // The `_.matches` iteratee shorthand.
     * _.findKey(users, { 'age': 1, 'active': true });
     * // => 'pebbles'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findKey(users, ['active', false]);
     * // => 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.findKey(users, 'active');
     * // => 'barney'
     */
    function findKey(object, predicate) {
      return baseFindKey(object, getIteratee(predicate, 3), baseForOwn);
    }

    /**
     * This method is like `_.findKey` except that it iterates over elements of
     * a collection in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @param {Function} [predicate=_.identity] The function invoked per iteration.
     * @returns {string|undefined} Returns the key of the matched element,
     *  else `undefined`.
     * @example
     *
     * var users = {
     *   'barney':  { 'age': 36, 'active': true },
     *   'fred':    { 'age': 40, 'active': false },
     *   'pebbles': { 'age': 1,  'active': true }
     * };
     *
     * _.findLastKey(users, function(o) { return o.age < 40; });
     * // => returns 'pebbles' assuming `_.findKey` returns 'barney'
     *
     * // The `_.matches` iteratee shorthand.
     * _.findLastKey(users, { 'age': 36, 'active': true });
     * // => 'barney'
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.findLastKey(users, ['active', false]);
     * // => 'fred'
     *
     * // The `_.property` iteratee shorthand.
     * _.findLastKey(users, 'active');
     * // => 'pebbles'
     */
    function findLastKey(object, predicate) {
      return baseFindKey(object, getIteratee(predicate, 3), baseForOwnRight);
    }

    /**
     * Iterates over own and inherited enumerable string keyed properties of an
     * object and invokes `iteratee` for each property. The iteratee is invoked
     * with three arguments: (value, key, object). Iteratee functions may exit
     * iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 0.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forInRight
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forIn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a', 'b', then 'c' (iteration order is not guaranteed).
     */
    function forIn(object, iteratee) {
      return object == null
        ? object
        : baseFor(object, getIteratee(iteratee, 3), keysIn);
    }

    /**
     * This method is like `_.forIn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forIn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forInRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'c', 'b', then 'a' assuming `_.forIn` logs 'a', 'b', then 'c'.
     */
    function forInRight(object, iteratee) {
      return object == null
        ? object
        : baseForRight(object, getIteratee(iteratee, 3), keysIn);
    }

    /**
     * Iterates over own enumerable string keyed properties of an object and
     * invokes `iteratee` for each property. The iteratee is invoked with three
     * arguments: (value, key, object). Iteratee functions may exit iteration
     * early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 0.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forOwnRight
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwn(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'a' then 'b' (iteration order is not guaranteed).
     */
    function forOwn(object, iteratee) {
      return object && baseForOwn(object, getIteratee(iteratee, 3));
    }

    /**
     * This method is like `_.forOwn` except that it iterates over properties of
     * `object` in the opposite order.
     *
     * @static
     * @memberOf _
     * @since 2.0.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns `object`.
     * @see _.forOwn
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.forOwnRight(new Foo, function(value, key) {
     *   console.log(key);
     * });
     * // => Logs 'b' then 'a' assuming `_.forOwn` logs 'a' then 'b'.
     */
    function forOwnRight(object, iteratee) {
      return object && baseForOwnRight(object, getIteratee(iteratee, 3));
    }

    /**
     * Creates an array of function property names from own enumerable properties
     * of `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to inspect.
     * @returns {Array} Returns the function names.
     * @see _.functionsIn
     * @example
     *
     * function Foo() {
     *   this.a = _.constant('a');
     *   this.b = _.constant('b');
     * }
     *
     * Foo.prototype.c = _.constant('c');
     *
     * _.functions(new Foo);
     * // => ['a', 'b']
     */
    function functions(object) {
      return object == null ? [] : baseFunctions(object, keys(object));
    }

    /**
     * Creates an array of function property names from own and inherited
     * enumerable properties of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to inspect.
     * @returns {Array} Returns the function names.
     * @see _.functions
     * @example
     *
     * function Foo() {
     *   this.a = _.constant('a');
     *   this.b = _.constant('b');
     * }
     *
     * Foo.prototype.c = _.constant('c');
     *
     * _.functionsIn(new Foo);
     * // => ['a', 'b', 'c']
     */
    function functionsIn(object) {
      return object == null ? [] : baseFunctions(object, keysIn(object));
    }

    /**
     * Gets the value at `path` of `object`. If the resolved value is
     * `undefined`, the `defaultValue` is returned in its place.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to get.
     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.get(object, 'a[0].b.c');
     * // => 3
     *
     * _.get(object, ['a', '0', 'b', 'c']);
     * // => 3
     *
     * _.get(object, 'a.b.c', 'default');
     * // => 'default'
     */
    function get(object, path, defaultValue) {
      var result = object == null ? undefined : baseGet(object, path);
      return result === undefined ? defaultValue : result;
    }

    /**
     * Checks if `path` is a direct property of `object`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     * @example
     *
     * var object = { 'a': { 'b': 2 } };
     * var other = _.create({ 'a': _.create({ 'b': 2 }) });
     *
     * _.has(object, 'a');
     * // => true
     *
     * _.has(object, 'a.b');
     * // => true
     *
     * _.has(object, ['a', 'b']);
     * // => true
     *
     * _.has(other, 'a');
     * // => false
     */
    function has(object, path) {
      return object != null && hasPath(object, path, baseHas);
    }

    /**
     * Checks if `path` is a direct or inherited property of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path to check.
     * @returns {boolean} Returns `true` if `path` exists, else `false`.
     * @example
     *
     * var object = _.create({ 'a': _.create({ 'b': 2 }) });
     *
     * _.hasIn(object, 'a');
     * // => true
     *
     * _.hasIn(object, 'a.b');
     * // => true
     *
     * _.hasIn(object, ['a', 'b']);
     * // => true
     *
     * _.hasIn(object, 'b');
     * // => false
     */
    function hasIn(object, path) {
      return object != null && hasPath(object, path, baseHasIn);
    }

    /**
     * Creates an object composed of the inverted keys and values of `object`.
     * If `object` contains duplicate values, subsequent values overwrite
     * property assignments of previous values.
     *
     * @static
     * @memberOf _
     * @since 0.7.0
     * @category Object
     * @param {Object} object The object to invert.
     * @returns {Object} Returns the new inverted object.
     * @example
     *
     * var object = { 'a': 1, 'b': 2, 'c': 1 };
     *
     * _.invert(object);
     * // => { '1': 'c', '2': 'b' }
     */
    var invert = createInverter(function(result, value, key) {
      if (value != null &&
          typeof value.toString != 'function') {
        value = nativeObjectToString.call(value);
      }

      result[value] = key;
    }, constant(identity));

    /**
     * This method is like `_.invert` except that the inverted object is generated
     * from the results of running each element of `object` thru `iteratee`. The
     * corresponding inverted value of each inverted key is an array of keys
     * responsible for generating the inverted value. The iteratee is invoked
     * with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.1.0
     * @category Object
     * @param {Object} object The object to invert.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {Object} Returns the new inverted object.
     * @example
     *
     * var object = { 'a': 1, 'b': 2, 'c': 1 };
     *
     * _.invertBy(object);
     * // => { '1': ['a', 'c'], '2': ['b'] }
     *
     * _.invertBy(object, function(value) {
     *   return 'group' + value;
     * });
     * // => { 'group1': ['a', 'c'], 'group2': ['b'] }
     */
    var invertBy = createInverter(function(result, value, key) {
      if (value != null &&
          typeof value.toString != 'function') {
        value = nativeObjectToString.call(value);
      }

      if (hasOwnProperty.call(result, value)) {
        result[value].push(key);
      } else {
        result[value] = [key];
      }
    }, getIteratee);

    /**
     * Invokes the method at `path` of `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the method to invoke.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {*} Returns the result of the invoked method.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': [1, 2, 3, 4] } }] };
     *
     * _.invoke(object, 'a[0].b.c.slice', 1, 3);
     * // => [2, 3]
     */
    var invoke = baseRest(baseInvoke);

    /**
     * Creates an array of the own enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects. See the
     * [ES spec](http://ecma-international.org/ecma-262/7.0/#sec-object.keys)
     * for more details.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keys(new Foo);
     * // => ['a', 'b'] (iteration order is not guaranteed)
     *
     * _.keys('hi');
     * // => ['0', '1']
     */
    function keys(object) {
      return isArrayLike(object) ? arrayLikeKeys(object) : baseKeys(object);
    }

    /**
     * Creates an array of the own and inherited enumerable property names of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property names.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.keysIn(new Foo);
     * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
     */
    function keysIn(object) {
      return isArrayLike(object) ? arrayLikeKeys(object, true) : baseKeysIn(object);
    }

    /**
     * The opposite of `_.mapValues`; this method creates an object with the
     * same values as `object` and keys generated by running each own enumerable
     * string keyed property of `object` thru `iteratee`. The iteratee is invoked
     * with three arguments: (value, key, object).
     *
     * @static
     * @memberOf _
     * @since 3.8.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns the new mapped object.
     * @see _.mapValues
     * @example
     *
     * _.mapKeys({ 'a': 1, 'b': 2 }, function(value, key) {
     *   return key + value;
     * });
     * // => { 'a1': 1, 'b2': 2 }
     */
    function mapKeys(object, iteratee) {
      var result = {};
      iteratee = getIteratee(iteratee, 3);

      baseForOwn(object, function(value, key, object) {
        baseAssignValue(result, iteratee(value, key, object), value);
      });
      return result;
    }

    /**
     * Creates an object with the same keys as `object` and values generated
     * by running each own enumerable string keyed property of `object` thru
     * `iteratee`. The iteratee is invoked with three arguments:
     * (value, key, object).
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Object} Returns the new mapped object.
     * @see _.mapKeys
     * @example
     *
     * var users = {
     *   'fred':    { 'user': 'fred',    'age': 40 },
     *   'pebbles': { 'user': 'pebbles', 'age': 1 }
     * };
     *
     * _.mapValues(users, function(o) { return o.age; });
     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
     *
     * // The `_.property` iteratee shorthand.
     * _.mapValues(users, 'age');
     * // => { 'fred': 40, 'pebbles': 1 } (iteration order is not guaranteed)
     */
    function mapValues(object, iteratee) {
      var result = {};
      iteratee = getIteratee(iteratee, 3);

      baseForOwn(object, function(value, key, object) {
        baseAssignValue(result, key, iteratee(value, key, object));
      });
      return result;
    }

    /**
     * This method is like `_.assign` except that it recursively merges own and
     * inherited enumerable string keyed properties of source objects into the
     * destination object. Source properties that resolve to `undefined` are
     * skipped if a destination value exists. Array and plain object properties
     * are merged recursively. Other objects and value types are overridden by
     * assignment. Source objects are applied from left to right. Subsequent
     * sources overwrite property assignments of previous sources.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 0.5.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} [sources] The source objects.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {
     *   'a': [{ 'b': 2 }, { 'd': 4 }]
     * };
     *
     * var other = {
     *   'a': [{ 'c': 3 }, { 'e': 5 }]
     * };
     *
     * _.merge(object, other);
     * // => { 'a': [{ 'b': 2, 'c': 3 }, { 'd': 4, 'e': 5 }] }
     */
    var merge = createAssigner(function(object, source, srcIndex) {
      baseMerge(object, source, srcIndex);
    });

    /**
     * This method is like `_.merge` except that it accepts `customizer` which
     * is invoked to produce the merged values of the destination and source
     * properties. If `customizer` returns `undefined`, merging is handled by the
     * method instead. The `customizer` is invoked with six arguments:
     * (objValue, srcValue, key, object, source, stack).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The destination object.
     * @param {...Object} sources The source objects.
     * @param {Function} customizer The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * function customizer(objValue, srcValue) {
     *   if (_.isArray(objValue)) {
     *     return objValue.concat(srcValue);
     *   }
     * }
     *
     * var object = { 'a': [1], 'b': [2] };
     * var other = { 'a': [3], 'b': [4] };
     *
     * _.mergeWith(object, other, customizer);
     * // => { 'a': [1, 3], 'b': [2, 4] }
     */
    var mergeWith = createAssigner(function(object, source, srcIndex, customizer) {
      baseMerge(object, source, srcIndex, customizer);
    });

    /**
     * The opposite of `_.pick`; this method creates an object composed of the
     * own and inherited enumerable property paths of `object` that are not omitted.
     *
     * **Note:** This method is considerably slower than `_.pick`.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {...(string|string[])} [paths] The property paths to omit.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.omit(object, ['a', 'c']);
     * // => { 'b': '2' }
     */
    var omit = flatRest(function(object, paths) {
      var result = {};
      if (object == null) {
        return result;
      }
      var isDeep = false;
      paths = arrayMap(paths, function(path) {
        path = castPath(path, object);
        isDeep || (isDeep = path.length > 1);
        return path;
      });
      copyObject(object, getAllKeysIn(object), result);
      if (isDeep) {
        result = baseClone(result, CLONE_DEEP_FLAG | CLONE_FLAT_FLAG | CLONE_SYMBOLS_FLAG, customOmitClone);
      }
      var length = paths.length;
      while (length--) {
        baseUnset(result, paths[length]);
      }
      return result;
    });

    /**
     * The opposite of `_.pickBy`; this method creates an object composed of
     * the own and inherited enumerable string keyed properties of `object` that
     * `predicate` doesn't return truthy for. The predicate is invoked with two
     * arguments: (value, key).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The source object.
     * @param {Function} [predicate=_.identity] The function invoked per property.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.omitBy(object, _.isNumber);
     * // => { 'b': '2' }
     */
    function omitBy(object, predicate) {
      return pickBy(object, negate(getIteratee(predicate)));
    }

    /**
     * Creates an object composed of the picked `object` properties.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The source object.
     * @param {...(string|string[])} [paths] The property paths to pick.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.pick(object, ['a', 'c']);
     * // => { 'a': 1, 'c': 3 }
     */
    var pick = flatRest(function(object, paths) {
      return object == null ? {} : basePick(object, paths);
    });

    /**
     * Creates an object composed of the `object` properties `predicate` returns
     * truthy for. The predicate is invoked with two arguments: (value, key).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The source object.
     * @param {Function} [predicate=_.identity] The function invoked per property.
     * @returns {Object} Returns the new object.
     * @example
     *
     * var object = { 'a': 1, 'b': '2', 'c': 3 };
     *
     * _.pickBy(object, _.isNumber);
     * // => { 'a': 1, 'c': 3 }
     */
    function pickBy(object, predicate) {
      if (object == null) {
        return {};
      }
      var props = arrayMap(getAllKeysIn(object), function(prop) {
        return [prop];
      });
      predicate = getIteratee(predicate);
      return basePickBy(object, props, function(value, path) {
        return predicate(value, path[0]);
      });
    }

    /**
     * This method is like `_.get` except that if the resolved value is a
     * function it's invoked with the `this` binding of its parent object and
     * its result is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @param {Array|string} path The path of the property to resolve.
     * @param {*} [defaultValue] The value returned for `undefined` resolved values.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c1': 3, 'c2': _.constant(4) } }] };
     *
     * _.result(object, 'a[0].b.c1');
     * // => 3
     *
     * _.result(object, 'a[0].b.c2');
     * // => 4
     *
     * _.result(object, 'a[0].b.c3', 'default');
     * // => 'default'
     *
     * _.result(object, 'a[0].b.c3', _.constant('default'));
     * // => 'default'
     */
    function result(object, path, defaultValue) {
      path = castPath(path, object);

      var index = -1,
          length = path.length;

      // Ensure the loop is entered when path is empty.
      if (!length) {
        length = 1;
        object = undefined;
      }
      while (++index < length) {
        var value = object == null ? undefined : object[toKey(path[index])];
        if (value === undefined) {
          index = length;
          value = defaultValue;
        }
        object = isFunction(value) ? value.call(object) : value;
      }
      return object;
    }

    /**
     * Sets the value at `path` of `object`. If a portion of `path` doesn't exist,
     * it's created. Arrays are created for missing index properties while objects
     * are created for all other missing properties. Use `_.setWith` to customize
     * `path` creation.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.set(object, 'a[0].b.c', 4);
     * console.log(object.a[0].b.c);
     * // => 4
     *
     * _.set(object, ['x', '0', 'y', 'z'], 5);
     * console.log(object.x[0].y.z);
     * // => 5
     */
    function set(object, path, value) {
      return object == null ? object : baseSet(object, path, value);
    }

    /**
     * This method is like `_.set` except that it accepts `customizer` which is
     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
     * path creation is handled by the method instead. The `customizer` is invoked
     * with three arguments: (nsValue, key, nsObject).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {*} value The value to set.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {};
     *
     * _.setWith(object, '[0][1]', 'a', Object);
     * // => { '0': { '1': 'a' } }
     */
    function setWith(object, path, value, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return object == null ? object : baseSet(object, path, value, customizer);
    }

    /**
     * Creates an array of own enumerable string keyed-value pairs for `object`
     * which can be consumed by `_.fromPairs`. If `object` is a map or set, its
     * entries are returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias entries
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the key-value pairs.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.toPairs(new Foo);
     * // => [['a', 1], ['b', 2]] (iteration order is not guaranteed)
     */
    var toPairs = createToPairs(keys);

    /**
     * Creates an array of own and inherited enumerable string keyed-value pairs
     * for `object` which can be consumed by `_.fromPairs`. If `object` is a map
     * or set, its entries are returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @alias entriesIn
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the key-value pairs.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.toPairsIn(new Foo);
     * // => [['a', 1], ['b', 2], ['c', 3]] (iteration order is not guaranteed)
     */
    var toPairsIn = createToPairs(keysIn);

    /**
     * An alternative to `_.reduce`; this method transforms `object` to a new
     * `accumulator` object which is the result of running each of its own
     * enumerable string keyed properties thru `iteratee`, with each invocation
     * potentially mutating the `accumulator` object. If `accumulator` is not
     * provided, a new object with the same `[[Prototype]]` will be used. The
     * iteratee is invoked with four arguments: (accumulator, value, key, object).
     * Iteratee functions may exit iteration early by explicitly returning `false`.
     *
     * @static
     * @memberOf _
     * @since 1.3.0
     * @category Object
     * @param {Object} object The object to iterate over.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @param {*} [accumulator] The custom accumulator value.
     * @returns {*} Returns the accumulated value.
     * @example
     *
     * _.transform([2, 3, 4], function(result, n) {
     *   result.push(n *= n);
     *   return n % 2 == 0;
     * }, []);
     * // => [4, 9]
     *
     * _.transform({ 'a': 1, 'b': 2, 'c': 1 }, function(result, value, key) {
     *   (result[value] || (result[value] = [])).push(key);
     * }, {});
     * // => { '1': ['a', 'c'], '2': ['b'] }
     */
    function transform(object, iteratee, accumulator) {
      var isArr = isArray(object),
          isArrLike = isArr || isBuffer(object) || isTypedArray(object);

      iteratee = getIteratee(iteratee, 4);
      if (accumulator == null) {
        var Ctor = object && object.constructor;
        if (isArrLike) {
          accumulator = isArr ? new Ctor : [];
        }
        else if (isObject(object)) {
          accumulator = isFunction(Ctor) ? baseCreate(getPrototype(object)) : {};
        }
        else {
          accumulator = {};
        }
      }
      (isArrLike ? arrayEach : baseForOwn)(object, function(value, index, object) {
        return iteratee(accumulator, value, index, object);
      });
      return accumulator;
    }

    /**
     * Removes the property at `path` of `object`.
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to unset.
     * @returns {boolean} Returns `true` if the property is deleted, else `false`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 7 } }] };
     * _.unset(object, 'a[0].b.c');
     * // => true
     *
     * console.log(object);
     * // => { 'a': [{ 'b': {} }] };
     *
     * _.unset(object, ['a', '0', 'b', 'c']);
     * // => true
     *
     * console.log(object);
     * // => { 'a': [{ 'b': {} }] };
     */
    function unset(object, path) {
      return object == null ? true : baseUnset(object, path);
    }

    /**
     * This method is like `_.set` except that accepts `updater` to produce the
     * value to set. Use `_.updateWith` to customize `path` creation. The `updater`
     * is invoked with one argument: (value).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {Function} updater The function to produce the updated value.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = { 'a': [{ 'b': { 'c': 3 } }] };
     *
     * _.update(object, 'a[0].b.c', function(n) { return n * n; });
     * console.log(object.a[0].b.c);
     * // => 9
     *
     * _.update(object, 'x[0].y.z', function(n) { return n ? n + 1 : 0; });
     * console.log(object.x[0].y.z);
     * // => 0
     */
    function update(object, path, updater) {
      return object == null ? object : baseUpdate(object, path, castFunction(updater));
    }

    /**
     * This method is like `_.update` except that it accepts `customizer` which is
     * invoked to produce the objects of `path`.  If `customizer` returns `undefined`
     * path creation is handled by the method instead. The `customizer` is invoked
     * with three arguments: (nsValue, key, nsObject).
     *
     * **Note:** This method mutates `object`.
     *
     * @static
     * @memberOf _
     * @since 4.6.0
     * @category Object
     * @param {Object} object The object to modify.
     * @param {Array|string} path The path of the property to set.
     * @param {Function} updater The function to produce the updated value.
     * @param {Function} [customizer] The function to customize assigned values.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var object = {};
     *
     * _.updateWith(object, '[0][1]', _.constant('a'), Object);
     * // => { '0': { '1': 'a' } }
     */
    function updateWith(object, path, updater, customizer) {
      customizer = typeof customizer == 'function' ? customizer : undefined;
      return object == null ? object : baseUpdate(object, path, castFunction(updater), customizer);
    }

    /**
     * Creates an array of the own enumerable string keyed property values of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.values(new Foo);
     * // => [1, 2] (iteration order is not guaranteed)
     *
     * _.values('hi');
     * // => ['h', 'i']
     */
    function values(object) {
      return object == null ? [] : baseValues(object, keys(object));
    }

    /**
     * Creates an array of the own and inherited enumerable string keyed property
     * values of `object`.
     *
     * **Note:** Non-object values are coerced to objects.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Object
     * @param {Object} object The object to query.
     * @returns {Array} Returns the array of property values.
     * @example
     *
     * function Foo() {
     *   this.a = 1;
     *   this.b = 2;
     * }
     *
     * Foo.prototype.c = 3;
     *
     * _.valuesIn(new Foo);
     * // => [1, 2, 3] (iteration order is not guaranteed)
     */
    function valuesIn(object) {
      return object == null ? [] : baseValues(object, keysIn(object));
    }

    /*------------------------------------------------------------------------*/

    /**
     * Clamps `number` within the inclusive `lower` and `upper` bounds.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Number
     * @param {number} number The number to clamp.
     * @param {number} [lower] The lower bound.
     * @param {number} upper The upper bound.
     * @returns {number} Returns the clamped number.
     * @example
     *
     * _.clamp(-10, -5, 5);
     * // => -5
     *
     * _.clamp(10, -5, 5);
     * // => 5
     */
    function clamp(number, lower, upper) {
      if (upper === undefined) {
        upper = lower;
        lower = undefined;
      }
      if (upper !== undefined) {
        upper = toNumber(upper);
        upper = upper === upper ? upper : 0;
      }
      if (lower !== undefined) {
        lower = toNumber(lower);
        lower = lower === lower ? lower : 0;
      }
      return baseClamp(toNumber(number), lower, upper);
    }

    /**
     * Checks if `n` is between `start` and up to, but not including, `end`. If
     * `end` is not specified, it's set to `start` with `start` then set to `0`.
     * If `start` is greater than `end` the params are swapped to support
     * negative ranges.
     *
     * @static
     * @memberOf _
     * @since 3.3.0
     * @category Number
     * @param {number} number The number to check.
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @returns {boolean} Returns `true` if `number` is in the range, else `false`.
     * @see _.range, _.rangeRight
     * @example
     *
     * _.inRange(3, 2, 4);
     * // => true
     *
     * _.inRange(4, 8);
     * // => true
     *
     * _.inRange(4, 2);
     * // => false
     *
     * _.inRange(2, 2);
     * // => false
     *
     * _.inRange(1.2, 2);
     * // => true
     *
     * _.inRange(5.2, 4);
     * // => false
     *
     * _.inRange(-3, -2, -6);
     * // => true
     */
    function inRange(number, start, end) {
      start = toFinite(start);
      if (end === undefined) {
        end = start;
        start = 0;
      } else {
        end = toFinite(end);
      }
      number = toNumber(number);
      return baseInRange(number, start, end);
    }

    /**
     * Produces a random number between the inclusive `lower` and `upper` bounds.
     * If only one argument is provided a number between `0` and the given number
     * is returned. If `floating` is `true`, or either `lower` or `upper` are
     * floats, a floating-point number is returned instead of an integer.
     *
     * **Note:** JavaScript follows the IEEE-754 standard for resolving
     * floating-point values which can produce unexpected results.
     *
     * @static
     * @memberOf _
     * @since 0.7.0
     * @category Number
     * @param {number} [lower=0] The lower bound.
     * @param {number} [upper=1] The upper bound.
     * @param {boolean} [floating] Specify returning a floating-point number.
     * @returns {number} Returns the random number.
     * @example
     *
     * _.random(0, 5);
     * // => an integer between 0 and 5
     *
     * _.random(5);
     * // => also an integer between 0 and 5
     *
     * _.random(5, true);
     * // => a floating-point number between 0 and 5
     *
     * _.random(1.2, 5.2);
     * // => a floating-point number between 1.2 and 5.2
     */
    function random(lower, upper, floating) {
      if (floating && typeof floating != 'boolean' && isIterateeCall(lower, upper, floating)) {
        upper = floating = undefined;
      }
      if (floating === undefined) {
        if (typeof upper == 'boolean') {
          floating = upper;
          upper = undefined;
        }
        else if (typeof lower == 'boolean') {
          floating = lower;
          lower = undefined;
        }
      }
      if (lower === undefined && upper === undefined) {
        lower = 0;
        upper = 1;
      }
      else {
        lower = toFinite(lower);
        if (upper === undefined) {
          upper = lower;
          lower = 0;
        } else {
          upper = toFinite(upper);
        }
      }
      if (lower > upper) {
        var temp = lower;
        lower = upper;
        upper = temp;
      }
      if (floating || lower % 1 || upper % 1) {
        var rand = nativeRandom();
        return nativeMin(lower + (rand * (upper - lower + freeParseFloat('1e-' + ((rand + '').length - 1)))), upper);
      }
      return baseRandom(lower, upper);
    }

    /*------------------------------------------------------------------------*/

    /**
     * Converts `string` to [camel case](https://en.wikipedia.org/wiki/CamelCase).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the camel cased string.
     * @example
     *
     * _.camelCase('Foo Bar');
     * // => 'fooBar'
     *
     * _.camelCase('--foo-bar--');
     * // => 'fooBar'
     *
     * _.camelCase('__FOO_BAR__');
     * // => 'fooBar'
     */
    var camelCase = createCompounder(function(result, word, index) {
      word = word.toLowerCase();
      return result + (index ? capitalize(word) : word);
    });

    /**
     * Converts the first character of `string` to upper case and the remaining
     * to lower case.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to capitalize.
     * @returns {string} Returns the capitalized string.
     * @example
     *
     * _.capitalize('FRED');
     * // => 'Fred'
     */
    function capitalize(string) {
      return upperFirst(toString(string).toLowerCase());
    }

    /**
     * Deburrs `string` by converting
     * [Latin-1 Supplement](https://en.wikipedia.org/wiki/Latin-1_Supplement_(Unicode_block)#Character_table)
     * and [Latin Extended-A](https://en.wikipedia.org/wiki/Latin_Extended-A)
     * letters to basic Latin letters and removing
     * [combining diacritical marks](https://en.wikipedia.org/wiki/Combining_Diacritical_Marks).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to deburr.
     * @returns {string} Returns the deburred string.
     * @example
     *
     * _.deburr('déjà vu');
     * // => 'deja vu'
     */
    function deburr(string) {
      string = toString(string);
      return string && string.replace(reLatin, deburrLetter).replace(reComboMark, '');
    }

    /**
     * Checks if `string` ends with the given target string.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {string} [target] The string to search for.
     * @param {number} [position=string.length] The position to search up to.
     * @returns {boolean} Returns `true` if `string` ends with `target`,
     *  else `false`.
     * @example
     *
     * _.endsWith('abc', 'c');
     * // => true
     *
     * _.endsWith('abc', 'b');
     * // => false
     *
     * _.endsWith('abc', 'b', 2);
     * // => true
     */
    function endsWith(string, target, position) {
      string = toString(string);
      target = baseToString(target);

      var length = string.length;
      position = position === undefined
        ? length
        : baseClamp(toInteger(position), 0, length);

      var end = position;
      position -= target.length;
      return position >= 0 && string.slice(position, end) == target;
    }

    /**
     * Converts the characters "&", "<", ">", '"', and "'" in `string` to their
     * corresponding HTML entities.
     *
     * **Note:** No other characters are escaped. To escape additional
     * characters use a third-party library like [_he_](https://mths.be/he).
     *
     * Though the ">" character is escaped for symmetry, characters like
     * ">" and "/" don't need escaping in HTML and have no special meaning
     * unless they're part of a tag or unquoted attribute value. See
     * [Mathias Bynens's article](https://mathiasbynens.be/notes/ambiguous-ampersands)
     * (under "semi-related fun fact") for more details.
     *
     * When working with HTML you should always
     * [quote attribute values](http://wonko.com/post/html-escaping) to reduce
     * XSS vectors.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escape('fred, barney, & pebbles');
     * // => 'fred, barney, &amp; pebbles'
     */
    function escape(string) {
      string = toString(string);
      return (string && reHasUnescapedHtml.test(string))
        ? string.replace(reUnescapedHtml, escapeHtmlChar)
        : string;
    }

    /**
     * Escapes the `RegExp` special characters "^", "$", "\", ".", "*", "+",
     * "?", "(", ")", "[", "]", "{", "}", and "|" in `string`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to escape.
     * @returns {string} Returns the escaped string.
     * @example
     *
     * _.escapeRegExp('[lodash](https://lodash.com/)');
     * // => '\[lodash\]\(https://lodash\.com/\)'
     */
    function escapeRegExp(string) {
      string = toString(string);
      return (string && reHasRegExpChar.test(string))
        ? string.replace(reRegExpChar, '\\$&')
        : string;
    }

    /**
     * Converts `string` to
     * [kebab case](https://en.wikipedia.org/wiki/Letter_case#Special_case_styles).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the kebab cased string.
     * @example
     *
     * _.kebabCase('Foo Bar');
     * // => 'foo-bar'
     *
     * _.kebabCase('fooBar');
     * // => 'foo-bar'
     *
     * _.kebabCase('__FOO_BAR__');
     * // => 'foo-bar'
     */
    var kebabCase = createCompounder(function(result, word, index) {
      return result + (index ? '-' : '') + word.toLowerCase();
    });

    /**
     * Converts `string`, as space separated words, to lower case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the lower cased string.
     * @example
     *
     * _.lowerCase('--Foo-Bar--');
     * // => 'foo bar'
     *
     * _.lowerCase('fooBar');
     * // => 'foo bar'
     *
     * _.lowerCase('__FOO_BAR__');
     * // => 'foo bar'
     */
    var lowerCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + word.toLowerCase();
    });

    /**
     * Converts the first character of `string` to lower case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.lowerFirst('Fred');
     * // => 'fred'
     *
     * _.lowerFirst('FRED');
     * // => 'fRED'
     */
    var lowerFirst = createCaseFirst('toLowerCase');

    /**
     * Pads `string` on the left and right sides if it's shorter than `length`.
     * Padding characters are truncated if they can't be evenly divided by `length`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.pad('abc', 8);
     * // => '  abc   '
     *
     * _.pad('abc', 8, '_-');
     * // => '_-abc_-_'
     *
     * _.pad('abc', 3);
     * // => 'abc'
     */
    function pad(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      if (!length || strLength >= length) {
        return string;
      }
      var mid = (length - strLength) / 2;
      return (
        createPadding(nativeFloor(mid), chars) +
        string +
        createPadding(nativeCeil(mid), chars)
      );
    }

    /**
     * Pads `string` on the right side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padEnd('abc', 6);
     * // => 'abc   '
     *
     * _.padEnd('abc', 6, '_-');
     * // => 'abc_-_'
     *
     * _.padEnd('abc', 3);
     * // => 'abc'
     */
    function padEnd(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      return (length && strLength < length)
        ? (string + createPadding(length - strLength, chars))
        : string;
    }

    /**
     * Pads `string` on the left side if it's shorter than `length`. Padding
     * characters are truncated if they exceed `length`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to pad.
     * @param {number} [length=0] The padding length.
     * @param {string} [chars=' '] The string used as padding.
     * @returns {string} Returns the padded string.
     * @example
     *
     * _.padStart('abc', 6);
     * // => '   abc'
     *
     * _.padStart('abc', 6, '_-');
     * // => '_-_abc'
     *
     * _.padStart('abc', 3);
     * // => 'abc'
     */
    function padStart(string, length, chars) {
      string = toString(string);
      length = toInteger(length);

      var strLength = length ? stringSize(string) : 0;
      return (length && strLength < length)
        ? (createPadding(length - strLength, chars) + string)
        : string;
    }

    /**
     * Converts `string` to an integer of the specified radix. If `radix` is
     * `undefined` or `0`, a `radix` of `10` is used unless `value` is a
     * hexadecimal, in which case a `radix` of `16` is used.
     *
     * **Note:** This method aligns with the
     * [ES5 implementation](https://es5.github.io/#x15.1.2.2) of `parseInt`.
     *
     * @static
     * @memberOf _
     * @since 1.1.0
     * @category String
     * @param {string} string The string to convert.
     * @param {number} [radix=10] The radix to interpret `value` by.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {number} Returns the converted integer.
     * @example
     *
     * _.parseInt('08');
     * // => 8
     *
     * _.map(['6', '08', '10'], _.parseInt);
     * // => [6, 8, 10]
     */
    function parseInt(string, radix, guard) {
      if (guard || radix == null) {
        radix = 0;
      } else if (radix) {
        radix = +radix;
      }
      return nativeParseInt(toString(string).replace(reTrimStart, ''), radix || 0);
    }

    /**
     * Repeats the given string `n` times.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to repeat.
     * @param {number} [n=1] The number of times to repeat the string.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the repeated string.
     * @example
     *
     * _.repeat('*', 3);
     * // => '***'
     *
     * _.repeat('abc', 2);
     * // => 'abcabc'
     *
     * _.repeat('abc', 0);
     * // => ''
     */
    function repeat(string, n, guard) {
      if ((guard ? isIterateeCall(string, n, guard) : n === undefined)) {
        n = 1;
      } else {
        n = toInteger(n);
      }
      return baseRepeat(toString(string), n);
    }

    /**
     * Replaces matches for `pattern` in `string` with `replacement`.
     *
     * **Note:** This method is based on
     * [`String#replace`](https://mdn.io/String/replace).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to modify.
     * @param {RegExp|string} pattern The pattern to replace.
     * @param {Function|string} replacement The match replacement.
     * @returns {string} Returns the modified string.
     * @example
     *
     * _.replace('Hi Fred', 'Fred', 'Barney');
     * // => 'Hi Barney'
     */
    function replace() {
      var args = arguments,
          string = toString(args[0]);

      return args.length < 3 ? string : string.replace(args[1], args[2]);
    }

    /**
     * Converts `string` to
     * [snake case](https://en.wikipedia.org/wiki/Snake_case).
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the snake cased string.
     * @example
     *
     * _.snakeCase('Foo Bar');
     * // => 'foo_bar'
     *
     * _.snakeCase('fooBar');
     * // => 'foo_bar'
     *
     * _.snakeCase('--FOO-BAR--');
     * // => 'foo_bar'
     */
    var snakeCase = createCompounder(function(result, word, index) {
      return result + (index ? '_' : '') + word.toLowerCase();
    });

    /**
     * Splits `string` by `separator`.
     *
     * **Note:** This method is based on
     * [`String#split`](https://mdn.io/String/split).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to split.
     * @param {RegExp|string} separator The separator pattern to split by.
     * @param {number} [limit] The length to truncate results to.
     * @returns {Array} Returns the string segments.
     * @example
     *
     * _.split('a-b-c', '-', 2);
     * // => ['a', 'b']
     */
    function split(string, separator, limit) {
      if (limit && typeof limit != 'number' && isIterateeCall(string, separator, limit)) {
        separator = limit = undefined;
      }
      limit = limit === undefined ? MAX_ARRAY_LENGTH : limit >>> 0;
      if (!limit) {
        return [];
      }
      string = toString(string);
      if (string && (
            typeof separator == 'string' ||
            (separator != null && !isRegExp(separator))
          )) {
        separator = baseToString(separator);
        if (!separator && hasUnicode(string)) {
          return castSlice(stringToArray(string), 0, limit);
        }
      }
      return string.split(separator, limit);
    }

    /**
     * Converts `string` to
     * [start case](https://en.wikipedia.org/wiki/Letter_case#Stylistic_or_specialised_usage).
     *
     * @static
     * @memberOf _
     * @since 3.1.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the start cased string.
     * @example
     *
     * _.startCase('--foo-bar--');
     * // => 'Foo Bar'
     *
     * _.startCase('fooBar');
     * // => 'Foo Bar'
     *
     * _.startCase('__FOO_BAR__');
     * // => 'FOO BAR'
     */
    var startCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + upperFirst(word);
    });

    /**
     * Checks if `string` starts with the given target string.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {string} [target] The string to search for.
     * @param {number} [position=0] The position to search from.
     * @returns {boolean} Returns `true` if `string` starts with `target`,
     *  else `false`.
     * @example
     *
     * _.startsWith('abc', 'a');
     * // => true
     *
     * _.startsWith('abc', 'b');
     * // => false
     *
     * _.startsWith('abc', 'b', 1);
     * // => true
     */
    function startsWith(string, target, position) {
      string = toString(string);
      position = position == null
        ? 0
        : baseClamp(toInteger(position), 0, string.length);

      target = baseToString(target);
      return string.slice(position, position + target.length) == target;
    }

    /**
     * Creates a compiled template function that can interpolate data properties
     * in "interpolate" delimiters, HTML-escape interpolated data properties in
     * "escape" delimiters, and execute JavaScript in "evaluate" delimiters. Data
     * properties may be accessed as free variables in the template. If a setting
     * object is given, it takes precedence over `_.templateSettings` values.
     *
     * **Note:** In the development build `_.template` utilizes
     * [sourceURLs](http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/#toc-sourceurl)
     * for easier debugging.
     *
     * For more information on precompiling templates see
     * [lodash's custom builds documentation](https://lodash.com/custom-builds).
     *
     * For more information on Chrome extension sandboxes see
     * [Chrome's extensions documentation](https://developer.chrome.com/extensions/sandboxingEval).
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category String
     * @param {string} [string=''] The template string.
     * @param {Object} [options={}] The options object.
     * @param {RegExp} [options.escape=_.templateSettings.escape]
     *  The HTML "escape" delimiter.
     * @param {RegExp} [options.evaluate=_.templateSettings.evaluate]
     *  The "evaluate" delimiter.
     * @param {Object} [options.imports=_.templateSettings.imports]
     *  An object to import into the template as free variables.
     * @param {RegExp} [options.interpolate=_.templateSettings.interpolate]
     *  The "interpolate" delimiter.
     * @param {string} [options.sourceURL='lodash.templateSources[n]']
     *  The sourceURL of the compiled template.
     * @param {string} [options.variable='obj']
     *  The data object variable name.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Function} Returns the compiled template function.
     * @example
     *
     * // Use the "interpolate" delimiter to create a compiled template.
     * var compiled = _.template('hello <%= user %>!');
     * compiled({ 'user': 'fred' });
     * // => 'hello fred!'
     *
     * // Use the HTML "escape" delimiter to escape data property values.
     * var compiled = _.template('<b><%- value %></b>');
     * compiled({ 'value': '<script>' });
     * // => '<b>&lt;script&gt;</b>'
     *
     * // Use the "evaluate" delimiter to execute JavaScript and generate HTML.
     * var compiled = _.template('<% _.forEach(users, function(user) { %><li><%- user %></li><% }); %>');
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // Use the internal `print` function in "evaluate" delimiters.
     * var compiled = _.template('<% print("hello " + user); %>!');
     * compiled({ 'user': 'barney' });
     * // => 'hello barney!'
     *
     * // Use the ES template literal delimiter as an "interpolate" delimiter.
     * // Disable support by replacing the "interpolate" delimiter.
     * var compiled = _.template('hello ${ user }!');
     * compiled({ 'user': 'pebbles' });
     * // => 'hello pebbles!'
     *
     * // Use backslashes to treat delimiters as plain text.
     * var compiled = _.template('<%= "\\<%- value %\\>" %>');
     * compiled({ 'value': 'ignored' });
     * // => '<%- value %>'
     *
     * // Use the `imports` option to import `jQuery` as `jq`.
     * var text = '<% jq.each(users, function(user) { %><li><%- user %></li><% }); %>';
     * var compiled = _.template(text, { 'imports': { 'jq': jQuery } });
     * compiled({ 'users': ['fred', 'barney'] });
     * // => '<li>fred</li><li>barney</li>'
     *
     * // Use the `sourceURL` option to specify a custom sourceURL for the template.
     * var compiled = _.template('hello <%= user %>!', { 'sourceURL': '/basic/greeting.jst' });
     * compiled(data);
     * // => Find the source of "greeting.jst" under the Sources tab or Resources panel of the web inspector.
     *
     * // Use the `variable` option to ensure a with-statement isn't used in the compiled template.
     * var compiled = _.template('hi <%= data.user %>!', { 'variable': 'data' });
     * compiled.source;
     * // => function(data) {
     * //   var __t, __p = '';
     * //   __p += 'hi ' + ((__t = ( data.user )) == null ? '' : __t) + '!';
     * //   return __p;
     * // }
     *
     * // Use custom template delimiters.
     * _.templateSettings.interpolate = /{{([\s\S]+?)}}/g;
     * var compiled = _.template('hello {{ user }}!');
     * compiled({ 'user': 'mustache' });
     * // => 'hello mustache!'
     *
     * // Use the `source` property to inline compiled templates for meaningful
     * // line numbers in error messages and stack traces.
     * fs.writeFileSync(path.join(process.cwd(), 'jst.js'), '\
     *   var JST = {\
     *     "main": ' + _.template(mainText).source + '\
     *   };\
     * ');
     */
    function template(string, options, guard) {
      // Based on John Resig's `tmpl` implementation
      // (http://ejohn.org/blog/javascript-micro-templating/)
      // and Laura Doktorova's doT.js (https://github.com/olado/doT).
      var settings = lodash.templateSettings;

      if (guard && isIterateeCall(string, options, guard)) {
        options = undefined;
      }
      string = toString(string);
      options = assignInWith({}, options, settings, customDefaultsAssignIn);

      var imports = assignInWith({}, options.imports, settings.imports, customDefaultsAssignIn),
          importsKeys = keys(imports),
          importsValues = baseValues(imports, importsKeys);

      var isEscaping,
          isEvaluating,
          index = 0,
          interpolate = options.interpolate || reNoMatch,
          source = "__p += '";

      // Compile the regexp to match each delimiter.
      var reDelimiters = RegExp(
        (options.escape || reNoMatch).source + '|' +
        interpolate.source + '|' +
        (interpolate === reInterpolate ? reEsTemplate : reNoMatch).source + '|' +
        (options.evaluate || reNoMatch).source + '|$'
      , 'g');

      // Use a sourceURL for easier debugging.
      // The sourceURL gets injected into the source that's eval-ed, so be careful
      // to normalize all kinds of whitespace, so e.g. newlines (and unicode versions of it) can't sneak in
      // and escape the comment, thus injecting code that gets evaled.
      var sourceURL = '//# sourceURL=' +
        (hasOwnProperty.call(options, 'sourceURL')
          ? (options.sourceURL + '').replace(/\s/g, ' ')
          : ('lodash.templateSources[' + (++templateCounter) + ']')
        ) + '\n';

      string.replace(reDelimiters, function(match, escapeValue, interpolateValue, esTemplateValue, evaluateValue, offset) {
        interpolateValue || (interpolateValue = esTemplateValue);

        // Escape characters that can't be included in string literals.
        source += string.slice(index, offset).replace(reUnescapedString, escapeStringChar);

        // Replace delimiters with snippets.
        if (escapeValue) {
          isEscaping = true;
          source += "' +\n__e(" + escapeValue + ") +\n'";
        }
        if (evaluateValue) {
          isEvaluating = true;
          source += "';\n" + evaluateValue + ";\n__p += '";
        }
        if (interpolateValue) {
          source += "' +\n((__t = (" + interpolateValue + ")) == null ? '' : __t) +\n'";
        }
        index = offset + match.length;

        // The JS engine embedded in Adobe products needs `match` returned in
        // order to produce the correct `offset` value.
        return match;
      });

      source += "';\n";

      // If `variable` is not specified wrap a with-statement around the generated
      // code to add the data object to the top of the scope chain.
      var variable = hasOwnProperty.call(options, 'variable') && options.variable;
      if (!variable) {
        source = 'with (obj) {\n' + source + '\n}\n';
      }
      // Throw an error if a forbidden character was found in `variable`, to prevent
      // potential command injection attacks.
      else if (reForbiddenIdentifierChars.test(variable)) {
        throw new Error(INVALID_TEMPL_VAR_ERROR_TEXT);
      }

      // Cleanup code by stripping empty strings.
      source = (isEvaluating ? source.replace(reEmptyStringLeading, '') : source)
        .replace(reEmptyStringMiddle, '$1')
        .replace(reEmptyStringTrailing, '$1;');

      // Frame code as the function body.
      source = 'function(' + (variable || 'obj') + ') {\n' +
        (variable
          ? ''
          : 'obj || (obj = {});\n'
        ) +
        "var __t, __p = ''" +
        (isEscaping
           ? ', __e = _.escape'
           : ''
        ) +
        (isEvaluating
          ? ', __j = Array.prototype.join;\n' +
            "function print() { __p += __j.call(arguments, '') }\n"
          : ';\n'
        ) +
        source +
        'return __p\n}';

      var result = attempt(function() {
        return Function(importsKeys, sourceURL + 'return ' + source)
          .apply(undefined, importsValues);
      });

      // Provide the compiled function's source by its `toString` method or
      // the `source` property as a convenience for inlining compiled templates.
      result.source = source;
      if (isError(result)) {
        throw result;
      }
      return result;
    }

    /**
     * Converts `string`, as a whole, to lower case just like
     * [String#toLowerCase](https://mdn.io/toLowerCase).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the lower cased string.
     * @example
     *
     * _.toLower('--Foo-Bar--');
     * // => '--foo-bar--'
     *
     * _.toLower('fooBar');
     * // => 'foobar'
     *
     * _.toLower('__FOO_BAR__');
     * // => '__foo_bar__'
     */
    function toLower(value) {
      return toString(value).toLowerCase();
    }

    /**
     * Converts `string`, as a whole, to upper case just like
     * [String#toUpperCase](https://mdn.io/toUpperCase).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the upper cased string.
     * @example
     *
     * _.toUpper('--foo-bar--');
     * // => '--FOO-BAR--'
     *
     * _.toUpper('fooBar');
     * // => 'FOOBAR'
     *
     * _.toUpper('__foo_bar__');
     * // => '__FOO_BAR__'
     */
    function toUpper(value) {
      return toString(value).toUpperCase();
    }

    /**
     * Removes leading and trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trim('  abc  ');
     * // => 'abc'
     *
     * _.trim('-_-abc-_-', '_-');
     * // => 'abc'
     *
     * _.map(['  foo  ', '  bar  '], _.trim);
     * // => ['foo', 'bar']
     */
    function trim(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return baseTrim(string);
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          chrSymbols = stringToArray(chars),
          start = charsStartIndex(strSymbols, chrSymbols),
          end = charsEndIndex(strSymbols, chrSymbols) + 1;

      return castSlice(strSymbols, start, end).join('');
    }

    /**
     * Removes trailing whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimEnd('  abc  ');
     * // => '  abc'
     *
     * _.trimEnd('-_-abc-_-', '_-');
     * // => '-_-abc'
     */
    function trimEnd(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return string.slice(0, trimmedEndIndex(string) + 1);
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          end = charsEndIndex(strSymbols, stringToArray(chars)) + 1;

      return castSlice(strSymbols, 0, end).join('');
    }

    /**
     * Removes leading whitespace or specified characters from `string`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to trim.
     * @param {string} [chars=whitespace] The characters to trim.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {string} Returns the trimmed string.
     * @example
     *
     * _.trimStart('  abc  ');
     * // => 'abc  '
     *
     * _.trimStart('-_-abc-_-', '_-');
     * // => 'abc-_-'
     */
    function trimStart(string, chars, guard) {
      string = toString(string);
      if (string && (guard || chars === undefined)) {
        return string.replace(reTrimStart, '');
      }
      if (!string || !(chars = baseToString(chars))) {
        return string;
      }
      var strSymbols = stringToArray(string),
          start = charsStartIndex(strSymbols, stringToArray(chars));

      return castSlice(strSymbols, start).join('');
    }

    /**
     * Truncates `string` if it's longer than the given maximum string length.
     * The last characters of the truncated string are replaced with the omission
     * string which defaults to "...".
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to truncate.
     * @param {Object} [options={}] The options object.
     * @param {number} [options.length=30] The maximum string length.
     * @param {string} [options.omission='...'] The string to indicate text is omitted.
     * @param {RegExp|string} [options.separator] The separator pattern to truncate to.
     * @returns {string} Returns the truncated string.
     * @example
     *
     * _.truncate('hi-diddly-ho there, neighborino');
     * // => 'hi-diddly-ho there, neighbo...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': ' '
     * });
     * // => 'hi-diddly-ho there,...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'length': 24,
     *   'separator': /,? +/
     * });
     * // => 'hi-diddly-ho there...'
     *
     * _.truncate('hi-diddly-ho there, neighborino', {
     *   'omission': ' [...]'
     * });
     * // => 'hi-diddly-ho there, neig [...]'
     */
    function truncate(string, options) {
      var length = DEFAULT_TRUNC_LENGTH,
          omission = DEFAULT_TRUNC_OMISSION;

      if (isObject(options)) {
        var separator = 'separator' in options ? options.separator : separator;
        length = 'length' in options ? toInteger(options.length) : length;
        omission = 'omission' in options ? baseToString(options.omission) : omission;
      }
      string = toString(string);

      var strLength = string.length;
      if (hasUnicode(string)) {
        var strSymbols = stringToArray(string);
        strLength = strSymbols.length;
      }
      if (length >= strLength) {
        return string;
      }
      var end = length - stringSize(omission);
      if (end < 1) {
        return omission;
      }
      var result = strSymbols
        ? castSlice(strSymbols, 0, end).join('')
        : string.slice(0, end);

      if (separator === undefined) {
        return result + omission;
      }
      if (strSymbols) {
        end += (result.length - end);
      }
      if (isRegExp(separator)) {
        if (string.slice(end).search(separator)) {
          var match,
              substring = result;

          if (!separator.global) {
            separator = RegExp(separator.source, toString(reFlags.exec(separator)) + 'g');
          }
          separator.lastIndex = 0;
          while ((match = separator.exec(substring))) {
            var newEnd = match.index;
          }
          result = result.slice(0, newEnd === undefined ? end : newEnd);
        }
      } else if (string.indexOf(baseToString(separator), end) != end) {
        var index = result.lastIndexOf(separator);
        if (index > -1) {
          result = result.slice(0, index);
        }
      }
      return result + omission;
    }

    /**
     * The inverse of `_.escape`; this method converts the HTML entities
     * `&amp;`, `&lt;`, `&gt;`, `&quot;`, and `&#39;` in `string` to
     * their corresponding characters.
     *
     * **Note:** No other HTML entities are unescaped. To unescape additional
     * HTML entities use a third-party library like [_he_](https://mths.be/he).
     *
     * @static
     * @memberOf _
     * @since 0.6.0
     * @category String
     * @param {string} [string=''] The string to unescape.
     * @returns {string} Returns the unescaped string.
     * @example
     *
     * _.unescape('fred, barney, &amp; pebbles');
     * // => 'fred, barney, & pebbles'
     */
    function unescape(string) {
      string = toString(string);
      return (string && reHasEscapedHtml.test(string))
        ? string.replace(reEscapedHtml, unescapeHtmlChar)
        : string;
    }

    /**
     * Converts `string`, as space separated words, to upper case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the upper cased string.
     * @example
     *
     * _.upperCase('--foo-bar');
     * // => 'FOO BAR'
     *
     * _.upperCase('fooBar');
     * // => 'FOO BAR'
     *
     * _.upperCase('__foo_bar__');
     * // => 'FOO BAR'
     */
    var upperCase = createCompounder(function(result, word, index) {
      return result + (index ? ' ' : '') + word.toUpperCase();
    });

    /**
     * Converts the first character of `string` to upper case.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category String
     * @param {string} [string=''] The string to convert.
     * @returns {string} Returns the converted string.
     * @example
     *
     * _.upperFirst('fred');
     * // => 'Fred'
     *
     * _.upperFirst('FRED');
     * // => 'FRED'
     */
    var upperFirst = createCaseFirst('toUpperCase');

    /**
     * Splits `string` into an array of its words.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category String
     * @param {string} [string=''] The string to inspect.
     * @param {RegExp|string} [pattern] The pattern to match words.
     * @param- {Object} [guard] Enables use as an iteratee for methods like `_.map`.
     * @returns {Array} Returns the words of `string`.
     * @example
     *
     * _.words('fred, barney, & pebbles');
     * // => ['fred', 'barney', 'pebbles']
     *
     * _.words('fred, barney, & pebbles', /[^, ]+/g);
     * // => ['fred', 'barney', '&', 'pebbles']
     */
    function words(string, pattern, guard) {
      string = toString(string);
      pattern = guard ? undefined : pattern;

      if (pattern === undefined) {
        return hasUnicodeWord(string) ? unicodeWords(string) : asciiWords(string);
      }
      return string.match(pattern) || [];
    }

    /*------------------------------------------------------------------------*/

    /**
     * Attempts to invoke `func`, returning either the result or the caught error
     * object. Any additional arguments are provided to `func` when it's invoked.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Function} func The function to attempt.
     * @param {...*} [args] The arguments to invoke `func` with.
     * @returns {*} Returns the `func` result or error object.
     * @example
     *
     * // Avoid throwing errors for invalid selectors.
     * var elements = _.attempt(function(selector) {
     *   return document.querySelectorAll(selector);
     * }, '>_>');
     *
     * if (_.isError(elements)) {
     *   elements = [];
     * }
     */
    var attempt = baseRest(function(func, args) {
      try {
        return apply(func, undefined, args);
      } catch (e) {
        return isError(e) ? e : new Error(e);
      }
    });

    /**
     * Binds methods of an object to the object itself, overwriting the existing
     * method.
     *
     * **Note:** This method doesn't set the "length" property of bound functions.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {Object} object The object to bind and assign the bound methods to.
     * @param {...(string|string[])} methodNames The object method names to bind.
     * @returns {Object} Returns `object`.
     * @example
     *
     * var view = {
     *   'label': 'docs',
     *   'click': function() {
     *     console.log('clicked ' + this.label);
     *   }
     * };
     *
     * _.bindAll(view, ['click']);
     * jQuery(element).on('click', view.click);
     * // => Logs 'clicked docs' when clicked.
     */
    var bindAll = flatRest(function(object, methodNames) {
      arrayEach(methodNames, function(key) {
        key = toKey(key);
        baseAssignValue(object, key, bind(object[key], object));
      });
      return object;
    });

    /**
     * Creates a function that iterates over `pairs` and invokes the corresponding
     * function of the first predicate to return truthy. The predicate-function
     * pairs are invoked with the `this` binding and arguments of the created
     * function.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {Array} pairs The predicate-function pairs.
     * @returns {Function} Returns the new composite function.
     * @example
     *
     * var func = _.cond([
     *   [_.matches({ 'a': 1 }),           _.constant('matches A')],
     *   [_.conforms({ 'b': _.isNumber }), _.constant('matches B')],
     *   [_.stubTrue,                      _.constant('no match')]
     * ]);
     *
     * func({ 'a': 1, 'b': 2 });
     * // => 'matches A'
     *
     * func({ 'a': 0, 'b': 1 });
     * // => 'matches B'
     *
     * func({ 'a': '1', 'b': '2' });
     * // => 'no match'
     */
    function cond(pairs) {
      var length = pairs == null ? 0 : pairs.length,
          toIteratee = getIteratee();

      pairs = !length ? [] : arrayMap(pairs, function(pair) {
        if (typeof pair[1] != 'function') {
          throw new TypeError(FUNC_ERROR_TEXT);
        }
        return [toIteratee(pair[0]), pair[1]];
      });

      return baseRest(function(args) {
        var index = -1;
        while (++index < length) {
          var pair = pairs[index];
          if (apply(pair[0], this, args)) {
            return apply(pair[1], this, args);
          }
        }
      });
    }

    /**
     * Creates a function that invokes the predicate properties of `source` with
     * the corresponding property values of a given object, returning `true` if
     * all predicates return truthy, else `false`.
     *
     * **Note:** The created function is equivalent to `_.conformsTo` with
     * `source` partially applied.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {Object} source The object of property predicates to conform to.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 2, 'b': 1 },
     *   { 'a': 1, 'b': 2 }
     * ];
     *
     * _.filter(objects, _.conforms({ 'b': function(n) { return n > 1; } }));
     * // => [{ 'a': 1, 'b': 2 }]
     */
    function conforms(source) {
      return baseConforms(baseClone(source, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that returns `value`.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Util
     * @param {*} value The value to return from the new function.
     * @returns {Function} Returns the new constant function.
     * @example
     *
     * var objects = _.times(2, _.constant({ 'a': 1 }));
     *
     * console.log(objects);
     * // => [{ 'a': 1 }, { 'a': 1 }]
     *
     * console.log(objects[0] === objects[1]);
     * // => true
     */
    function constant(value) {
      return function() {
        return value;
      };
    }

    /**
     * Checks `value` to determine whether a default value should be returned in
     * its place. The `defaultValue` is returned if `value` is `NaN`, `null`,
     * or `undefined`.
     *
     * @static
     * @memberOf _
     * @since 4.14.0
     * @category Util
     * @param {*} value The value to check.
     * @param {*} defaultValue The default value.
     * @returns {*} Returns the resolved value.
     * @example
     *
     * _.defaultTo(1, 10);
     * // => 1
     *
     * _.defaultTo(undefined, 10);
     * // => 10
     */
    function defaultTo(value, defaultValue) {
      return (value == null || value !== value) ? defaultValue : value;
    }

    /**
     * Creates a function that returns the result of invoking the given functions
     * with the `this` binding of the created function, where each successive
     * invocation is supplied the return value of the previous.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {...(Function|Function[])} [funcs] The functions to invoke.
     * @returns {Function} Returns the new composite function.
     * @see _.flowRight
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flow([_.add, square]);
     * addSquare(1, 2);
     * // => 9
     */
    var flow = createFlow();

    /**
     * This method is like `_.flow` except that it creates a function that
     * invokes the given functions from right to left.
     *
     * @static
     * @since 3.0.0
     * @memberOf _
     * @category Util
     * @param {...(Function|Function[])} [funcs] The functions to invoke.
     * @returns {Function} Returns the new composite function.
     * @see _.flow
     * @example
     *
     * function square(n) {
     *   return n * n;
     * }
     *
     * var addSquare = _.flowRight([square, _.add]);
     * addSquare(1, 2);
     * // => 9
     */
    var flowRight = createFlow(true);

    /**
     * This method returns the first argument it receives.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {*} value Any value.
     * @returns {*} Returns `value`.
     * @example
     *
     * var object = { 'a': 1 };
     *
     * console.log(_.identity(object) === object);
     * // => true
     */
    function identity(value) {
      return value;
    }

    /**
     * Creates a function that invokes `func` with the arguments of the created
     * function. If `func` is a property name, the created function returns the
     * property value for a given element. If `func` is an array or object, the
     * created function returns `true` for elements that contain the equivalent
     * source properties, otherwise it returns `false`.
     *
     * @static
     * @since 4.0.0
     * @memberOf _
     * @category Util
     * @param {*} [func=_.identity] The value to convert to a callback.
     * @returns {Function} Returns the callback.
     * @example
     *
     * var users = [
     *   { 'user': 'barney', 'age': 36, 'active': true },
     *   { 'user': 'fred',   'age': 40, 'active': false }
     * ];
     *
     * // The `_.matches` iteratee shorthand.
     * _.filter(users, _.iteratee({ 'user': 'barney', 'active': true }));
     * // => [{ 'user': 'barney', 'age': 36, 'active': true }]
     *
     * // The `_.matchesProperty` iteratee shorthand.
     * _.filter(users, _.iteratee(['user', 'fred']));
     * // => [{ 'user': 'fred', 'age': 40 }]
     *
     * // The `_.property` iteratee shorthand.
     * _.map(users, _.iteratee('user'));
     * // => ['barney', 'fred']
     *
     * // Create custom iteratee shorthands.
     * _.iteratee = _.wrap(_.iteratee, function(iteratee, func) {
     *   return !_.isRegExp(func) ? iteratee(func) : function(string) {
     *     return func.test(string);
     *   };
     * });
     *
     * _.filter(['abc', 'def'], /ef/);
     * // => ['def']
     */
    function iteratee(func) {
      return baseIteratee(typeof func == 'function' ? func : baseClone(func, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that performs a partial deep comparison between a given
     * object and `source`, returning `true` if the given object has equivalent
     * property values, else `false`.
     *
     * **Note:** The created function is equivalent to `_.isMatch` with `source`
     * partially applied.
     *
     * Partial comparisons will match empty array and empty object `source`
     * values against any array or object value, respectively. See `_.isEqual`
     * for a list of supported value comparisons.
     *
     * **Note:** Multiple values can be checked by combining several matchers
     * using `_.overSome`
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Object} source The object of property values to match.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 1, 'b': 2, 'c': 3 },
     *   { 'a': 4, 'b': 5, 'c': 6 }
     * ];
     *
     * _.filter(objects, _.matches({ 'a': 4, 'c': 6 }));
     * // => [{ 'a': 4, 'b': 5, 'c': 6 }]
     *
     * // Checking for several possible values
     * _.filter(objects, _.overSome([_.matches({ 'a': 1 }), _.matches({ 'a': 4 })]));
     * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]
     */
    function matches(source) {
      return baseMatches(baseClone(source, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that performs a partial deep comparison between the
     * value at `path` of a given object to `srcValue`, returning `true` if the
     * object value is equivalent, else `false`.
     *
     * **Note:** Partial comparisons will match empty array and empty object
     * `srcValue` values against any array or object value, respectively. See
     * `_.isEqual` for a list of supported value comparisons.
     *
     * **Note:** Multiple values can be checked by combining several matchers
     * using `_.overSome`
     *
     * @static
     * @memberOf _
     * @since 3.2.0
     * @category Util
     * @param {Array|string} path The path of the property to get.
     * @param {*} srcValue The value to match.
     * @returns {Function} Returns the new spec function.
     * @example
     *
     * var objects = [
     *   { 'a': 1, 'b': 2, 'c': 3 },
     *   { 'a': 4, 'b': 5, 'c': 6 }
     * ];
     *
     * _.find(objects, _.matchesProperty('a', 4));
     * // => { 'a': 4, 'b': 5, 'c': 6 }
     *
     * // Checking for several possible values
     * _.filter(objects, _.overSome([_.matchesProperty('a', 1), _.matchesProperty('a', 4)]));
     * // => [{ 'a': 1, 'b': 2, 'c': 3 }, { 'a': 4, 'b': 5, 'c': 6 }]
     */
    function matchesProperty(path, srcValue) {
      return baseMatchesProperty(path, baseClone(srcValue, CLONE_DEEP_FLAG));
    }

    /**
     * Creates a function that invokes the method at `path` of a given object.
     * Any additional arguments are provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Util
     * @param {Array|string} path The path of the method to invoke.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new invoker function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': _.constant(2) } },
     *   { 'a': { 'b': _.constant(1) } }
     * ];
     *
     * _.map(objects, _.method('a.b'));
     * // => [2, 1]
     *
     * _.map(objects, _.method(['a', 'b']));
     * // => [2, 1]
     */
    var method = baseRest(function(path, args) {
      return function(object) {
        return baseInvoke(object, path, args);
      };
    });

    /**
     * The opposite of `_.method`; this method creates a function that invokes
     * the method at a given path of `object`. Any additional arguments are
     * provided to the invoked method.
     *
     * @static
     * @memberOf _
     * @since 3.7.0
     * @category Util
     * @param {Object} object The object to query.
     * @param {...*} [args] The arguments to invoke the method with.
     * @returns {Function} Returns the new invoker function.
     * @example
     *
     * var array = _.times(3, _.constant),
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.methodOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.methodOf(object));
     * // => [2, 0]
     */
    var methodOf = baseRest(function(object, args) {
      return function(path) {
        return baseInvoke(object, path, args);
      };
    });

    /**
     * Adds all own enumerable string keyed function properties of a source
     * object to the destination object. If `object` is a function, then methods
     * are added to its prototype as well.
     *
     * **Note:** Use `_.runInContext` to create a pristine `lodash` function to
     * avoid conflicts caused by modifying the original.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {Function|Object} [object=lodash] The destination object.
     * @param {Object} source The object of functions to add.
     * @param {Object} [options={}] The options object.
     * @param {boolean} [options.chain=true] Specify whether mixins are chainable.
     * @returns {Function|Object} Returns `object`.
     * @example
     *
     * function vowels(string) {
     *   return _.filter(string, function(v) {
     *     return /[aeiou]/i.test(v);
     *   });
     * }
     *
     * _.mixin({ 'vowels': vowels });
     * _.vowels('fred');
     * // => ['e']
     *
     * _('fred').vowels().value();
     * // => ['e']
     *
     * _.mixin({ 'vowels': vowels }, { 'chain': false });
     * _('fred').vowels();
     * // => ['e']
     */
    function mixin(object, source, options) {
      var props = keys(source),
          methodNames = baseFunctions(source, props);

      if (options == null &&
          !(isObject(source) && (methodNames.length || !props.length))) {
        options = source;
        source = object;
        object = this;
        methodNames = baseFunctions(source, keys(source));
      }
      var chain = !(isObject(options) && 'chain' in options) || !!options.chain,
          isFunc = isFunction(object);

      arrayEach(methodNames, function(methodName) {
        var func = source[methodName];
        object[methodName] = func;
        if (isFunc) {
          object.prototype[methodName] = function() {
            var chainAll = this.__chain__;
            if (chain || chainAll) {
              var result = object(this.__wrapped__),
                  actions = result.__actions__ = copyArray(this.__actions__);

              actions.push({ 'func': func, 'args': arguments, 'thisArg': object });
              result.__chain__ = chainAll;
              return result;
            }
            return func.apply(object, arrayPush([this.value()], arguments));
          };
        }
      });

      return object;
    }

    /**
     * Reverts the `_` variable to its previous value and returns a reference to
     * the `lodash` function.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @returns {Function} Returns the `lodash` function.
     * @example
     *
     * var lodash = _.noConflict();
     */
    function noConflict() {
      if (root._ === this) {
        root._ = oldDash;
      }
      return this;
    }

    /**
     * This method returns `undefined`.
     *
     * @static
     * @memberOf _
     * @since 2.3.0
     * @category Util
     * @example
     *
     * _.times(2, _.noop);
     * // => [undefined, undefined]
     */
    function noop() {
      // No operation performed.
    }

    /**
     * Creates a function that gets the argument at index `n`. If `n` is negative,
     * the nth argument from the end is returned.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {number} [n=0] The index of the argument to return.
     * @returns {Function} Returns the new pass-thru function.
     * @example
     *
     * var func = _.nthArg(1);
     * func('a', 'b', 'c', 'd');
     * // => 'b'
     *
     * var func = _.nthArg(-2);
     * func('a', 'b', 'c', 'd');
     * // => 'c'
     */
    function nthArg(n) {
      n = toInteger(n);
      return baseRest(function(args) {
        return baseNth(args, n);
      });
    }

    /**
     * Creates a function that invokes `iteratees` with the arguments it receives
     * and returns their results.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [iteratees=[_.identity]]
     *  The iteratees to invoke.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.over([Math.max, Math.min]);
     *
     * func(1, 2, 3, 4);
     * // => [4, 1]
     */
    var over = createOver(arrayMap);

    /**
     * Creates a function that checks if **all** of the `predicates` return
     * truthy when invoked with the arguments it receives.
     *
     * Following shorthands are possible for providing predicates.
     * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.
     * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [predicates=[_.identity]]
     *  The predicates to check.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.overEvery([Boolean, isFinite]);
     *
     * func('1');
     * // => true
     *
     * func(null);
     * // => false
     *
     * func(NaN);
     * // => false
     */
    var overEvery = createOver(arrayEvery);

    /**
     * Creates a function that checks if **any** of the `predicates` return
     * truthy when invoked with the arguments it receives.
     *
     * Following shorthands are possible for providing predicates.
     * Pass an `Object` and it will be used as an parameter for `_.matches` to create the predicate.
     * Pass an `Array` of parameters for `_.matchesProperty` and the predicate will be created using them.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {...(Function|Function[])} [predicates=[_.identity]]
     *  The predicates to check.
     * @returns {Function} Returns the new function.
     * @example
     *
     * var func = _.overSome([Boolean, isFinite]);
     *
     * func('1');
     * // => true
     *
     * func(null);
     * // => true
     *
     * func(NaN);
     * // => false
     *
     * var matchesFunc = _.overSome([{ 'a': 1 }, { 'a': 2 }])
     * var matchesPropertyFunc = _.overSome([['a', 1], ['a', 2]])
     */
    var overSome = createOver(arraySome);

    /**
     * Creates a function that returns the value at `path` of a given object.
     *
     * @static
     * @memberOf _
     * @since 2.4.0
     * @category Util
     * @param {Array|string} path The path of the property to get.
     * @returns {Function} Returns the new accessor function.
     * @example
     *
     * var objects = [
     *   { 'a': { 'b': 2 } },
     *   { 'a': { 'b': 1 } }
     * ];
     *
     * _.map(objects, _.property('a.b'));
     * // => [2, 1]
     *
     * _.map(_.sortBy(objects, _.property(['a', 'b'])), 'a.b');
     * // => [1, 2]
     */
    function property(path) {
      return isKey(path) ? baseProperty(toKey(path)) : basePropertyDeep(path);
    }

    /**
     * The opposite of `_.property`; this method creates a function that returns
     * the value at a given path of `object`.
     *
     * @static
     * @memberOf _
     * @since 3.0.0
     * @category Util
     * @param {Object} object The object to query.
     * @returns {Function} Returns the new accessor function.
     * @example
     *
     * var array = [0, 1, 2],
     *     object = { 'a': array, 'b': array, 'c': array };
     *
     * _.map(['a[2]', 'c[0]'], _.propertyOf(object));
     * // => [2, 0]
     *
     * _.map([['a', '2'], ['c', '0']], _.propertyOf(object));
     * // => [2, 0]
     */
    function propertyOf(object) {
      return function(path) {
        return object == null ? undefined : baseGet(object, path);
      };
    }

    /**
     * Creates an array of numbers (positive and/or negative) progressing from
     * `start` up to, but not including, `end`. A step of `-1` is used if a negative
     * `start` is specified without an `end` or `step`. If `end` is not specified,
     * it's set to `start` with `start` then set to `0`.
     *
     * **Note:** JavaScript follows the IEEE-754 standard for resolving
     * floating-point values which can produce unexpected results.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @param {number} [step=1] The value to increment or decrement by.
     * @returns {Array} Returns the range of numbers.
     * @see _.inRange, _.rangeRight
     * @example
     *
     * _.range(4);
     * // => [0, 1, 2, 3]
     *
     * _.range(-4);
     * // => [0, -1, -2, -3]
     *
     * _.range(1, 5);
     * // => [1, 2, 3, 4]
     *
     * _.range(0, 20, 5);
     * // => [0, 5, 10, 15]
     *
     * _.range(0, -4, -1);
     * // => [0, -1, -2, -3]
     *
     * _.range(1, 4, 0);
     * // => [1, 1, 1]
     *
     * _.range(0);
     * // => []
     */
    var range = createRange();

    /**
     * This method is like `_.range` except that it populates values in
     * descending order.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {number} [start=0] The start of the range.
     * @param {number} end The end of the range.
     * @param {number} [step=1] The value to increment or decrement by.
     * @returns {Array} Returns the range of numbers.
     * @see _.inRange, _.range
     * @example
     *
     * _.rangeRight(4);
     * // => [3, 2, 1, 0]
     *
     * _.rangeRight(-4);
     * // => [-3, -2, -1, 0]
     *
     * _.rangeRight(1, 5);
     * // => [4, 3, 2, 1]
     *
     * _.rangeRight(0, 20, 5);
     * // => [15, 10, 5, 0]
     *
     * _.rangeRight(0, -4, -1);
     * // => [-3, -2, -1, 0]
     *
     * _.rangeRight(1, 4, 0);
     * // => [1, 1, 1]
     *
     * _.rangeRight(0);
     * // => []
     */
    var rangeRight = createRange(true);

    /**
     * This method returns a new empty array.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {Array} Returns the new empty array.
     * @example
     *
     * var arrays = _.times(2, _.stubArray);
     *
     * console.log(arrays);
     * // => [[], []]
     *
     * console.log(arrays[0] === arrays[1]);
     * // => false
     */
    function stubArray() {
      return [];
    }

    /**
     * This method returns `false`.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {boolean} Returns `false`.
     * @example
     *
     * _.times(2, _.stubFalse);
     * // => [false, false]
     */
    function stubFalse() {
      return false;
    }

    /**
     * This method returns a new empty object.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {Object} Returns the new empty object.
     * @example
     *
     * var objects = _.times(2, _.stubObject);
     *
     * console.log(objects);
     * // => [{}, {}]
     *
     * console.log(objects[0] === objects[1]);
     * // => false
     */
    function stubObject() {
      return {};
    }

    /**
     * This method returns an empty string.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {string} Returns the empty string.
     * @example
     *
     * _.times(2, _.stubString);
     * // => ['', '']
     */
    function stubString() {
      return '';
    }

    /**
     * This method returns `true`.
     *
     * @static
     * @memberOf _
     * @since 4.13.0
     * @category Util
     * @returns {boolean} Returns `true`.
     * @example
     *
     * _.times(2, _.stubTrue);
     * // => [true, true]
     */
    function stubTrue() {
      return true;
    }

    /**
     * Invokes the iteratee `n` times, returning an array of the results of
     * each invocation. The iteratee is invoked with one argument; (index).
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {number} n The number of times to invoke `iteratee`.
     * @param {Function} [iteratee=_.identity] The function invoked per iteration.
     * @returns {Array} Returns the array of results.
     * @example
     *
     * _.times(3, String);
     * // => ['0', '1', '2']
     *
     *  _.times(4, _.constant(0));
     * // => [0, 0, 0, 0]
     */
    function times(n, iteratee) {
      n = toInteger(n);
      if (n < 1 || n > MAX_SAFE_INTEGER) {
        return [];
      }
      var index = MAX_ARRAY_LENGTH,
          length = nativeMin(n, MAX_ARRAY_LENGTH);

      iteratee = getIteratee(iteratee);
      n -= MAX_ARRAY_LENGTH;

      var result = baseTimes(length, iteratee);
      while (++index < n) {
        iteratee(index);
      }
      return result;
    }

    /**
     * Converts `value` to a property path array.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Util
     * @param {*} value The value to convert.
     * @returns {Array} Returns the new property path array.
     * @example
     *
     * _.toPath('a.b.c');
     * // => ['a', 'b', 'c']
     *
     * _.toPath('a[0].b.c');
     * // => ['a', '0', 'b', 'c']
     */
    function toPath(value) {
      if (isArray(value)) {
        return arrayMap(value, toKey);
      }
      return isSymbol(value) ? [value] : copyArray(stringToPath(toString(value)));
    }

    /**
     * Generates a unique ID. If `prefix` is given, the ID is appended to it.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Util
     * @param {string} [prefix=''] The value to prefix the ID with.
     * @returns {string} Returns the unique ID.
     * @example
     *
     * _.uniqueId('contact_');
     * // => 'contact_104'
     *
     * _.uniqueId();
     * // => '105'
     */
    function uniqueId(prefix) {
      var id = ++idCounter;
      return toString(prefix) + id;
    }

    /*------------------------------------------------------------------------*/

    /**
     * Adds two numbers.
     *
     * @static
     * @memberOf _
     * @since 3.4.0
     * @category Math
     * @param {number} augend The first number in an addition.
     * @param {number} addend The second number in an addition.
     * @returns {number} Returns the total.
     * @example
     *
     * _.add(6, 4);
     * // => 10
     */
    var add = createMathOperation(function(augend, addend) {
      return augend + addend;
    }, 0);

    /**
     * Computes `number` rounded up to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round up.
     * @param {number} [precision=0] The precision to round up to.
     * @returns {number} Returns the rounded up number.
     * @example
     *
     * _.ceil(4.006);
     * // => 5
     *
     * _.ceil(6.004, 2);
     * // => 6.01
     *
     * _.ceil(6040, -2);
     * // => 6100
     */
    var ceil = createRound('ceil');

    /**
     * Divide two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {number} dividend The first number in a division.
     * @param {number} divisor The second number in a division.
     * @returns {number} Returns the quotient.
     * @example
     *
     * _.divide(6, 4);
     * // => 1.5
     */
    var divide = createMathOperation(function(dividend, divisor) {
      return dividend / divisor;
    }, 1);

    /**
     * Computes `number` rounded down to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round down.
     * @param {number} [precision=0] The precision to round down to.
     * @returns {number} Returns the rounded down number.
     * @example
     *
     * _.floor(4.006);
     * // => 4
     *
     * _.floor(0.046, 2);
     * // => 0.04
     *
     * _.floor(4060, -2);
     * // => 4000
     */
    var floor = createRound('floor');

    /**
     * Computes the maximum value of `array`. If `array` is empty or falsey,
     * `undefined` is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {*} Returns the maximum value.
     * @example
     *
     * _.max([4, 2, 8, 6]);
     * // => 8
     *
     * _.max([]);
     * // => undefined
     */
    function max(array) {
      return (array && array.length)
        ? baseExtremum(array, identity, baseGt)
        : undefined;
    }

    /**
     * This method is like `_.max` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * the value is ranked. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {*} Returns the maximum value.
     * @example
     *
     * var objects = [{ 'n': 1 }, { 'n': 2 }];
     *
     * _.maxBy(objects, function(o) { return o.n; });
     * // => { 'n': 2 }
     *
     * // The `_.property` iteratee shorthand.
     * _.maxBy(objects, 'n');
     * // => { 'n': 2 }
     */
    function maxBy(array, iteratee) {
      return (array && array.length)
        ? baseExtremum(array, getIteratee(iteratee, 2), baseGt)
        : undefined;
    }

    /**
     * Computes the mean of the values in `array`.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {number} Returns the mean.
     * @example
     *
     * _.mean([4, 2, 8, 6]);
     * // => 5
     */
    function mean(array) {
      return baseMean(array, identity);
    }

    /**
     * This method is like `_.mean` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the value to be averaged.
     * The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the mean.
     * @example
     *
     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
     *
     * _.meanBy(objects, function(o) { return o.n; });
     * // => 5
     *
     * // The `_.property` iteratee shorthand.
     * _.meanBy(objects, 'n');
     * // => 5
     */
    function meanBy(array, iteratee) {
      return baseMean(array, getIteratee(iteratee, 2));
    }

    /**
     * Computes the minimum value of `array`. If `array` is empty or falsey,
     * `undefined` is returned.
     *
     * @static
     * @since 0.1.0
     * @memberOf _
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {*} Returns the minimum value.
     * @example
     *
     * _.min([4, 2, 8, 6]);
     * // => 2
     *
     * _.min([]);
     * // => undefined
     */
    function min(array) {
      return (array && array.length)
        ? baseExtremum(array, identity, baseLt)
        : undefined;
    }

    /**
     * This method is like `_.min` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the criterion by which
     * the value is ranked. The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {*} Returns the minimum value.
     * @example
     *
     * var objects = [{ 'n': 1 }, { 'n': 2 }];
     *
     * _.minBy(objects, function(o) { return o.n; });
     * // => { 'n': 1 }
     *
     * // The `_.property` iteratee shorthand.
     * _.minBy(objects, 'n');
     * // => { 'n': 1 }
     */
    function minBy(array, iteratee) {
      return (array && array.length)
        ? baseExtremum(array, getIteratee(iteratee, 2), baseLt)
        : undefined;
    }

    /**
     * Multiply two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.7.0
     * @category Math
     * @param {number} multiplier The first number in a multiplication.
     * @param {number} multiplicand The second number in a multiplication.
     * @returns {number} Returns the product.
     * @example
     *
     * _.multiply(6, 4);
     * // => 24
     */
    var multiply = createMathOperation(function(multiplier, multiplicand) {
      return multiplier * multiplicand;
    }, 1);

    /**
     * Computes `number` rounded to `precision`.
     *
     * @static
     * @memberOf _
     * @since 3.10.0
     * @category Math
     * @param {number} number The number to round.
     * @param {number} [precision=0] The precision to round to.
     * @returns {number} Returns the rounded number.
     * @example
     *
     * _.round(4.006);
     * // => 4
     *
     * _.round(4.006, 2);
     * // => 4.01
     *
     * _.round(4060, -2);
     * // => 4100
     */
    var round = createRound('round');

    /**
     * Subtract two numbers.
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {number} minuend The first number in a subtraction.
     * @param {number} subtrahend The second number in a subtraction.
     * @returns {number} Returns the difference.
     * @example
     *
     * _.subtract(6, 4);
     * // => 2
     */
    var subtract = createMathOperation(function(minuend, subtrahend) {
      return minuend - subtrahend;
    }, 0);

    /**
     * Computes the sum of the values in `array`.
     *
     * @static
     * @memberOf _
     * @since 3.4.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @returns {number} Returns the sum.
     * @example
     *
     * _.sum([4, 2, 8, 6]);
     * // => 20
     */
    function sum(array) {
      return (array && array.length)
        ? baseSum(array, identity)
        : 0;
    }

    /**
     * This method is like `_.sum` except that it accepts `iteratee` which is
     * invoked for each element in `array` to generate the value to be summed.
     * The iteratee is invoked with one argument: (value).
     *
     * @static
     * @memberOf _
     * @since 4.0.0
     * @category Math
     * @param {Array} array The array to iterate over.
     * @param {Function} [iteratee=_.identity] The iteratee invoked per element.
     * @returns {number} Returns the sum.
     * @example
     *
     * var objects = [{ 'n': 4 }, { 'n': 2 }, { 'n': 8 }, { 'n': 6 }];
     *
     * _.sumBy(objects, function(o) { return o.n; });
     * // => 20
     *
     * // The `_.property` iteratee shorthand.
     * _.sumBy(objects, 'n');
     * // => 20
     */
    function sumBy(array, iteratee) {
      return (array && array.length)
        ? baseSum(array, getIteratee(iteratee, 2))
        : 0;
    }

    /*------------------------------------------------------------------------*/

    // Add methods that return wrapped values in chain sequences.
    lodash.after = after;
    lodash.ary = ary;
    lodash.assign = assign;
    lodash.assignIn = assignIn;
    lodash.assignInWith = assignInWith;
    lodash.assignWith = assignWith;
    lodash.at = at;
    lodash.before = before;
    lodash.bind = bind;
    lodash.bindAll = bindAll;
    lodash.bindKey = bindKey;
    lodash.castArray = castArray;
    lodash.chain = chain;
    lodash.chunk = chunk;
    lodash.compact = compact;
    lodash.concat = concat;
    lodash.cond = cond;
    lodash.conforms = conforms;
    lodash.constant = constant;
    lodash.countBy = countBy;
    lodash.create = create;
    lodash.curry = curry;
    lodash.curryRight = curryRight;
    lodash.debounce = debounce;
    lodash.defaults = defaults;
    lodash.defaultsDeep = defaultsDeep;
    lodash.defer = defer;
    lodash.delay = delay;
    lodash.difference = difference;
    lodash.differenceBy = differenceBy;
    lodash.differenceWith = differenceWith;
    lodash.drop = drop;
    lodash.dropRight = dropRight;
    lodash.dropRightWhile = dropRightWhile;
    lodash.dropWhile = dropWhile;
    lodash.fill = fill;
    lodash.filter = filter;
    lodash.flatMap = flatMap;
    lodash.flatMapDeep = flatMapDeep;
    lodash.flatMapDepth = flatMapDepth;
    lodash.flatten = flatten;
    lodash.flattenDeep = flattenDeep;
    lodash.flattenDepth = flattenDepth;
    lodash.flip = flip;
    lodash.flow = flow;
    lodash.flowRight = flowRight;
    lodash.fromPairs = fromPairs;
    lodash.functions = functions;
    lodash.functionsIn = functionsIn;
    lodash.groupBy = groupBy;
    lodash.initial = initial;
    lodash.intersection = intersection;
    lodash.intersectionBy = intersectionBy;
    lodash.intersectionWith = intersectionWith;
    lodash.invert = invert;
    lodash.invertBy = invertBy;
    lodash.invokeMap = invokeMap;
    lodash.iteratee = iteratee;
    lodash.keyBy = keyBy;
    lodash.keys = keys;
    lodash.keysIn = keysIn;
    lodash.map = map;
    lodash.mapKeys = mapKeys;
    lodash.mapValues = mapValues;
    lodash.matches = matches;
    lodash.matchesProperty = matchesProperty;
    lodash.memoize = memoize;
    lodash.merge = merge;
    lodash.mergeWith = mergeWith;
    lodash.method = method;
    lodash.methodOf = methodOf;
    lodash.mixin = mixin;
    lodash.negate = negate;
    lodash.nthArg = nthArg;
    lodash.omit = omit;
    lodash.omitBy = omitBy;
    lodash.once = once;
    lodash.orderBy = orderBy;
    lodash.over = over;
    lodash.overArgs = overArgs;
    lodash.overEvery = overEvery;
    lodash.overSome = overSome;
    lodash.partial = partial;
    lodash.partialRight = partialRight;
    lodash.partition = partition;
    lodash.pick = pick;
    lodash.pickBy = pickBy;
    lodash.property = property;
    lodash.propertyOf = propertyOf;
    lodash.pull = pull;
    lodash.pullAll = pullAll;
    lodash.pullAllBy = pullAllBy;
    lodash.pullAllWith = pullAllWith;
    lodash.pullAt = pullAt;
    lodash.range = range;
    lodash.rangeRight = rangeRight;
    lodash.rearg = rearg;
    lodash.reject = reject;
    lodash.remove = remove;
    lodash.rest = rest;
    lodash.reverse = reverse;
    lodash.sampleSize = sampleSize;
    lodash.set = set;
    lodash.setWith = setWith;
    lodash.shuffle = shuffle;
    lodash.slice = slice;
    lodash.sortBy = sortBy;
    lodash.sortedUniq = sortedUniq;
    lodash.sortedUniqBy = sortedUniqBy;
    lodash.split = split;
    lodash.spread = spread;
    lodash.tail = tail;
    lodash.take = take;
    lodash.takeRight = takeRight;
    lodash.takeRightWhile = takeRightWhile;
    lodash.takeWhile = takeWhile;
    lodash.tap = tap;
    lodash.throttle = throttle;
    lodash.thru = thru;
    lodash.toArray = toArray;
    lodash.toPairs = toPairs;
    lodash.toPairsIn = toPairsIn;
    lodash.toPath = toPath;
    lodash.toPlainObject = toPlainObject;
    lodash.transform = transform;
    lodash.unary = unary;
    lodash.union = union;
    lodash.unionBy = unionBy;
    lodash.unionWith = unionWith;
    lodash.uniq = uniq;
    lodash.uniqBy = uniqBy;
    lodash.uniqWith = uniqWith;
    lodash.unset = unset;
    lodash.unzip = unzip;
    lodash.unzipWith = unzipWith;
    lodash.update = update;
    lodash.updateWith = updateWith;
    lodash.values = values;
    lodash.valuesIn = valuesIn;
    lodash.without = without;
    lodash.words = words;
    lodash.wrap = wrap;
    lodash.xor = xor;
    lodash.xorBy = xorBy;
    lodash.xorWith = xorWith;
    lodash.zip = zip;
    lodash.zipObject = zipObject;
    lodash.zipObjectDeep = zipObjectDeep;
    lodash.zipWith = zipWith;

    // Add aliases.
    lodash.entries = toPairs;
    lodash.entriesIn = toPairsIn;
    lodash.extend = assignIn;
    lodash.extendWith = assignInWith;

    // Add methods to `lodash.prototype`.
    mixin(lodash, lodash);

    /*------------------------------------------------------------------------*/

    // Add methods that return unwrapped values in chain sequences.
    lodash.add = add;
    lodash.attempt = attempt;
    lodash.camelCase = camelCase;
    lodash.capitalize = capitalize;
    lodash.ceil = ceil;
    lodash.clamp = clamp;
    lodash.clone = clone;
    lodash.cloneDeep = cloneDeep;
    lodash.cloneDeepWith = cloneDeepWith;
    lodash.cloneWith = cloneWith;
    lodash.conformsTo = conformsTo;
    lodash.deburr = deburr;
    lodash.defaultTo = defaultTo;
    lodash.divide = divide;
    lodash.endsWith = endsWith;
    lodash.eq = eq;
    lodash.escape = escape;
    lodash.escapeRegExp = escapeRegExp;
    lodash.every = every;
    lodash.find = find;
    lodash.findIndex = findIndex;
    lodash.findKey = findKey;
    lodash.findLast = findLast;
    lodash.findLastIndex = findLastIndex;
    lodash.findLastKey = findLastKey;
    lodash.floor = floor;
    lodash.forEach = forEach;
    lodash.forEachRight = forEachRight;
    lodash.forIn = forIn;
    lodash.forInRight = forInRight;
    lodash.forOwn = forOwn;
    lodash.forOwnRight = forOwnRight;
    lodash.get = get;
    lodash.gt = gt;
    lodash.gte = gte;
    lodash.has = has;
    lodash.hasIn = hasIn;
    lodash.head = head;
    lodash.identity = identity;
    lodash.includes = includes;
    lodash.indexOf = indexOf;
    lodash.inRange = inRange;
    lodash.invoke = invoke;
    lodash.isArguments = isArguments;
    lodash.isArray = isArray;
    lodash.isArrayBuffer = isArrayBuffer;
    lodash.isArrayLike = isArrayLike;
    lodash.isArrayLikeObject = isArrayLikeObject;
    lodash.isBoolean = isBoolean;
    lodash.isBuffer = isBuffer;
    lodash.isDate = isDate;
    lodash.isElement = isElement;
    lodash.isEmpty = isEmpty;
    lodash.isEqual = isEqual;
    lodash.isEqualWith = isEqualWith;
    lodash.isError = isError;
    lodash.isFinite = isFinite;
    lodash.isFunction = isFunction;
    lodash.isInteger = isInteger;
    lodash.isLength = isLength;
    lodash.isMap = isMap;
    lodash.isMatch = isMatch;
    lodash.isMatchWith = isMatchWith;
    lodash.isNaN = isNaN;
    lodash.isNative = isNative;
    lodash.isNil = isNil;
    lodash.isNull = isNull;
    lodash.isNumber = isNumber;
    lodash.isObject = isObject;
    lodash.isObjectLike = isObjectLike;
    lodash.isPlainObject = isPlainObject;
    lodash.isRegExp = isRegExp;
    lodash.isSafeInteger = isSafeInteger;
    lodash.isSet = isSet;
    lodash.isString = isString;
    lodash.isSymbol = isSymbol;
    lodash.isTypedArray = isTypedArray;
    lodash.isUndefined = isUndefined;
    lodash.isWeakMap = isWeakMap;
    lodash.isWeakSet = isWeakSet;
    lodash.join = join;
    lodash.kebabCase = kebabCase;
    lodash.last = last;
    lodash.lastIndexOf = lastIndexOf;
    lodash.lowerCase = lowerCase;
    lodash.lowerFirst = lowerFirst;
    lodash.lt = lt;
    lodash.lte = lte;
    lodash.max = max;
    lodash.maxBy = maxBy;
    lodash.mean = mean;
    lodash.meanBy = meanBy;
    lodash.min = min;
    lodash.minBy = minBy;
    lodash.stubArray = stubArray;
    lodash.stubFalse = stubFalse;
    lodash.stubObject = stubObject;
    lodash.stubString = stubString;
    lodash.stubTrue = stubTrue;
    lodash.multiply = multiply;
    lodash.nth = nth;
    lodash.noConflict = noConflict;
    lodash.noop = noop;
    lodash.now = now;
    lodash.pad = pad;
    lodash.padEnd = padEnd;
    lodash.padStart = padStart;
    lodash.parseInt = parseInt;
    lodash.random = random;
    lodash.reduce = reduce;
    lodash.reduceRight = reduceRight;
    lodash.repeat = repeat;
    lodash.replace = replace;
    lodash.result = result;
    lodash.round = round;
    lodash.runInContext = runInContext;
    lodash.sample = sample;
    lodash.size = size;
    lodash.snakeCase = snakeCase;
    lodash.some = some;
    lodash.sortedIndex = sortedIndex;
    lodash.sortedIndexBy = sortedIndexBy;
    lodash.sortedIndexOf = sortedIndexOf;
    lodash.sortedLastIndex = sortedLastIndex;
    lodash.sortedLastIndexBy = sortedLastIndexBy;
    lodash.sortedLastIndexOf = sortedLastIndexOf;
    lodash.startCase = startCase;
    lodash.startsWith = startsWith;
    lodash.subtract = subtract;
    lodash.sum = sum;
    lodash.sumBy = sumBy;
    lodash.template = template;
    lodash.times = times;
    lodash.toFinite = toFinite;
    lodash.toInteger = toInteger;
    lodash.toLength = toLength;
    lodash.toLower = toLower;
    lodash.toNumber = toNumber;
    lodash.toSafeInteger = toSafeInteger;
    lodash.toString = toString;
    lodash.toUpper = toUpper;
    lodash.trim = trim;
    lodash.trimEnd = trimEnd;
    lodash.trimStart = trimStart;
    lodash.truncate = truncate;
    lodash.unescape = unescape;
    lodash.uniqueId = uniqueId;
    lodash.upperCase = upperCase;
    lodash.upperFirst = upperFirst;

    // Add aliases.
    lodash.each = forEach;
    lodash.eachRight = forEachRight;
    lodash.first = head;

    mixin(lodash, (function() {
      var source = {};
      baseForOwn(lodash, function(func, methodName) {
        if (!hasOwnProperty.call(lodash.prototype, methodName)) {
          source[methodName] = func;
        }
      });
      return source;
    }()), { 'chain': false });

    /*------------------------------------------------------------------------*/

    /**
     * The semantic version number.
     *
     * @static
     * @memberOf _
     * @type {string}
     */
    lodash.VERSION = VERSION;

    // Assign default placeholders.
    arrayEach(['bind', 'bindKey', 'curry', 'curryRight', 'partial', 'partialRight'], function(methodName) {
      lodash[methodName].placeholder = lodash;
    });

    // Add `LazyWrapper` methods for `_.drop` and `_.take` variants.
    arrayEach(['drop', 'take'], function(methodName, index) {
      LazyWrapper.prototype[methodName] = function(n) {
        n = n === undefined ? 1 : nativeMax(toInteger(n), 0);

        var result = (this.__filtered__ && !index)
          ? new LazyWrapper(this)
          : this.clone();

        if (result.__filtered__) {
          result.__takeCount__ = nativeMin(n, result.__takeCount__);
        } else {
          result.__views__.push({
            'size': nativeMin(n, MAX_ARRAY_LENGTH),
            'type': methodName + (result.__dir__ < 0 ? 'Right' : '')
          });
        }
        return result;
      };

      LazyWrapper.prototype[methodName + 'Right'] = function(n) {
        return this.reverse()[methodName](n).reverse();
      };
    });

    // Add `LazyWrapper` methods that accept an `iteratee` value.
    arrayEach(['filter', 'map', 'takeWhile'], function(methodName, index) {
      var type = index + 1,
          isFilter = type == LAZY_FILTER_FLAG || type == LAZY_WHILE_FLAG;

      LazyWrapper.prototype[methodName] = function(iteratee) {
        var result = this.clone();
        result.__iteratees__.push({
          'iteratee': getIteratee(iteratee, 3),
          'type': type
        });
        result.__filtered__ = result.__filtered__ || isFilter;
        return result;
      };
    });

    // Add `LazyWrapper` methods for `_.head` and `_.last`.
    arrayEach(['head', 'last'], function(methodName, index) {
      var takeName = 'take' + (index ? 'Right' : '');

      LazyWrapper.prototype[methodName] = function() {
        return this[takeName](1).value()[0];
      };
    });

    // Add `LazyWrapper` methods for `_.initial` and `_.tail`.
    arrayEach(['initial', 'tail'], function(methodName, index) {
      var dropName = 'drop' + (index ? '' : 'Right');

      LazyWrapper.prototype[methodName] = function() {
        return this.__filtered__ ? new LazyWrapper(this) : this[dropName](1);
      };
    });

    LazyWrapper.prototype.compact = function() {
      return this.filter(identity);
    };

    LazyWrapper.prototype.find = function(predicate) {
      return this.filter(predicate).head();
    };

    LazyWrapper.prototype.findLast = function(predicate) {
      return this.reverse().find(predicate);
    };

    LazyWrapper.prototype.invokeMap = baseRest(function(path, args) {
      if (typeof path == 'function') {
        return new LazyWrapper(this);
      }
      return this.map(function(value) {
        return baseInvoke(value, path, args);
      });
    });

    LazyWrapper.prototype.reject = function(predicate) {
      return this.filter(negate(getIteratee(predicate)));
    };

    LazyWrapper.prototype.slice = function(start, end) {
      start = toInteger(start);

      var result = this;
      if (result.__filtered__ && (start > 0 || end < 0)) {
        return new LazyWrapper(result);
      }
      if (start < 0) {
        result = result.takeRight(-start);
      } else if (start) {
        result = result.drop(start);
      }
      if (end !== undefined) {
        end = toInteger(end);
        result = end < 0 ? result.dropRight(-end) : result.take(end - start);
      }
      return result;
    };

    LazyWrapper.prototype.takeRightWhile = function(predicate) {
      return this.reverse().takeWhile(predicate).reverse();
    };

    LazyWrapper.prototype.toArray = function() {
      return this.take(MAX_ARRAY_LENGTH);
    };

    // Add `LazyWrapper` methods to `lodash.prototype`.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var checkIteratee = /^(?:filter|find|map|reject)|While$/.test(methodName),
          isTaker = /^(?:head|last)$/.test(methodName),
          lodashFunc = lodash[isTaker ? ('take' + (methodName == 'last' ? 'Right' : '')) : methodName],
          retUnwrapped = isTaker || /^find/.test(methodName);

      if (!lodashFunc) {
        return;
      }
      lodash.prototype[methodName] = function() {
        var value = this.__wrapped__,
            args = isTaker ? [1] : arguments,
            isLazy = value instanceof LazyWrapper,
            iteratee = args[0],
            useLazy = isLazy || isArray(value);

        var interceptor = function(value) {
          var result = lodashFunc.apply(lodash, arrayPush([value], args));
          return (isTaker && chainAll) ? result[0] : result;
        };

        if (useLazy && checkIteratee && typeof iteratee == 'function' && iteratee.length != 1) {
          // Avoid lazy use if the iteratee has a "length" value other than `1`.
          isLazy = useLazy = false;
        }
        var chainAll = this.__chain__,
            isHybrid = !!this.__actions__.length,
            isUnwrapped = retUnwrapped && !chainAll,
            onlyLazy = isLazy && !isHybrid;

        if (!retUnwrapped && useLazy) {
          value = onlyLazy ? value : new LazyWrapper(this);
          var result = func.apply(value, args);
          result.__actions__.push({ 'func': thru, 'args': [interceptor], 'thisArg': undefined });
          return new LodashWrapper(result, chainAll);
        }
        if (isUnwrapped && onlyLazy) {
          return func.apply(this, args);
        }
        result = this.thru(interceptor);
        return isUnwrapped ? (isTaker ? result.value()[0] : result.value()) : result;
      };
    });

    // Add `Array` methods to `lodash.prototype`.
    arrayEach(['pop', 'push', 'shift', 'sort', 'splice', 'unshift'], function(methodName) {
      var func = arrayProto[methodName],
          chainName = /^(?:push|sort|unshift)$/.test(methodName) ? 'tap' : 'thru',
          retUnwrapped = /^(?:pop|shift)$/.test(methodName);

      lodash.prototype[methodName] = function() {
        var args = arguments;
        if (retUnwrapped && !this.__chain__) {
          var value = this.value();
          return func.apply(isArray(value) ? value : [], args);
        }
        return this[chainName](function(value) {
          return func.apply(isArray(value) ? value : [], args);
        });
      };
    });

    // Map minified method names to their real names.
    baseForOwn(LazyWrapper.prototype, function(func, methodName) {
      var lodashFunc = lodash[methodName];
      if (lodashFunc) {
        var key = lodashFunc.name + '';
        if (!hasOwnProperty.call(realNames, key)) {
          realNames[key] = [];
        }
        realNames[key].push({ 'name': methodName, 'func': lodashFunc });
      }
    });

    realNames[createHybrid(undefined, WRAP_BIND_KEY_FLAG).name] = [{
      'name': 'wrapper',
      'func': undefined
    }];

    // Add methods to `LazyWrapper`.
    LazyWrapper.prototype.clone = lazyClone;
    LazyWrapper.prototype.reverse = lazyReverse;
    LazyWrapper.prototype.value = lazyValue;

    // Add chain sequence methods to the `lodash` wrapper.
    lodash.prototype.at = wrapperAt;
    lodash.prototype.chain = wrapperChain;
    lodash.prototype.commit = wrapperCommit;
    lodash.prototype.next = wrapperNext;
    lodash.prototype.plant = wrapperPlant;
    lodash.prototype.reverse = wrapperReverse;
    lodash.prototype.toJSON = lodash.prototype.valueOf = lodash.prototype.value = wrapperValue;

    // Add lazy aliases.
    lodash.prototype.first = lodash.prototype.head;

    if (symIterator) {
      lodash.prototype[symIterator] = wrapperToIterator;
    }
    return lodash;
  });

  /*--------------------------------------------------------------------------*/

  // Export lodash.
  var _ = runInContext();

  // Some AMD build optimizers, like r.js, check for condition patterns like:
  if (true) {
    // Expose Lodash on the global object to prevent errors when Lodash is
    // loaded by a script tag in the presence of an AMD loader.
    // See http://requirejs.org/docs/errors.html#mismatch for more details.
    // Use `_.noConflict` to remove Lodash from the global object.
    root._ = _;

    // Define as an anonymous module so, through path mapping, it can be
    // referenced as the "underscore" module.
    !(__WEBPACK_AMD_DEFINE_RESULT__ = (function() {
      return _;
    }).call(exports, __webpack_require__, exports, module),
		__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));
  }
  // Check for `exports` after `define` in case a build optimizer adds it.
  else {}
}.call(this));


/***/ }),

/***/ "./resources/sass/app.scss":
/*!*********************************!*\
  !*** ./resources/sass/app.scss ***!
  \*********************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
// extracted by mini-css-extract-plugin


/***/ }),

/***/ "./node_modules/popper.js/dist/esm/popper.js":
/*!***************************************************!*\
  !*** ./node_modules/popper.js/dist/esm/popper.js ***!
  \***************************************************/
/***/ ((__unused_webpack_module, __webpack_exports__, __webpack_require__) => {

"use strict";
__webpack_require__.r(__webpack_exports__);
/* harmony export */ __webpack_require__.d(__webpack_exports__, {
/* harmony export */   "default": () => (__WEBPACK_DEFAULT_EXPORT__)
/* harmony export */ });
/**!
 * @fileOverview Kickass library to create and place poppers near their reference elements.
 * @version 1.16.1
 * @license
 * Copyright (c) 2016 Federico Zivolo and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
var isBrowser = typeof window !== 'undefined' && typeof document !== 'undefined' && typeof navigator !== 'undefined';

var timeoutDuration = function () {
  var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];
  for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) {
    if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {
      return 1;
    }
  }
  return 0;
}();

function microtaskDebounce(fn) {
  var called = false;
  return function () {
    if (called) {
      return;
    }
    called = true;
    window.Promise.resolve().then(function () {
      called = false;
      fn();
    });
  };
}

function taskDebounce(fn) {
  var scheduled = false;
  return function () {
    if (!scheduled) {
      scheduled = true;
      setTimeout(function () {
        scheduled = false;
        fn();
      }, timeoutDuration);
    }
  };
}

var supportsMicroTasks = isBrowser && window.Promise;

/**
* Create a debounced version of a method, that's asynchronously deferred
* but called in the minimum time possible.
*
* @method
* @memberof Popper.Utils
* @argument {Function} fn
* @returns {Function}
*/
var debounce = supportsMicroTasks ? microtaskDebounce : taskDebounce;

/**
 * Check if the given variable is a function
 * @method
 * @memberof Popper.Utils
 * @argument {Any} functionToCheck - variable to check
 * @returns {Boolean} answer to: is a function?
 */
function isFunction(functionToCheck) {
  var getType = {};
  return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
}

/**
 * Get CSS computed property of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Eement} element
 * @argument {String} property
 */
function getStyleComputedProperty(element, property) {
  if (element.nodeType !== 1) {
    return [];
  }
  // NOTE: 1 DOM access here
  var window = element.ownerDocument.defaultView;
  var css = window.getComputedStyle(element, null);
  return property ? css[property] : css;
}

/**
 * Returns the parentNode or the host of the element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Element} parent
 */
function getParentNode(element) {
  if (element.nodeName === 'HTML') {
    return element;
  }
  return element.parentNode || element.host;
}

/**
 * Returns the scrolling parent of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Element} scroll parent
 */
function getScrollParent(element) {
  // Return body, `getScroll` will take care to get the correct `scrollTop` from it
  if (!element) {
    return document.body;
  }

  switch (element.nodeName) {
    case 'HTML':
    case 'BODY':
      return element.ownerDocument.body;
    case '#document':
      return element.body;
  }

  // Firefox want us to check `-x` and `-y` variations as well

  var _getStyleComputedProp = getStyleComputedProperty(element),
      overflow = _getStyleComputedProp.overflow,
      overflowX = _getStyleComputedProp.overflowX,
      overflowY = _getStyleComputedProp.overflowY;

  if (/(auto|scroll|overlay)/.test(overflow + overflowY + overflowX)) {
    return element;
  }

  return getScrollParent(getParentNode(element));
}

/**
 * Returns the reference node of the reference object, or the reference object itself.
 * @method
 * @memberof Popper.Utils
 * @param {Element|Object} reference - the reference element (the popper will be relative to this)
 * @returns {Element} parent
 */
function getReferenceNode(reference) {
  return reference && reference.referenceNode ? reference.referenceNode : reference;
}

var isIE11 = isBrowser && !!(window.MSInputMethodContext && document.documentMode);
var isIE10 = isBrowser && /MSIE 10/.test(navigator.userAgent);

/**
 * Determines if the browser is Internet Explorer
 * @method
 * @memberof Popper.Utils
 * @param {Number} version to check
 * @returns {Boolean} isIE
 */
function isIE(version) {
  if (version === 11) {
    return isIE11;
  }
  if (version === 10) {
    return isIE10;
  }
  return isIE11 || isIE10;
}

/**
 * Returns the offset parent of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Element} offset parent
 */
function getOffsetParent(element) {
  if (!element) {
    return document.documentElement;
  }

  var noOffsetParent = isIE(10) ? document.body : null;

  // NOTE: 1 DOM access here
  var offsetParent = element.offsetParent || null;
  // Skip hidden elements which don't have an offsetParent
  while (offsetParent === noOffsetParent && element.nextElementSibling) {
    offsetParent = (element = element.nextElementSibling).offsetParent;
  }

  var nodeName = offsetParent && offsetParent.nodeName;

  if (!nodeName || nodeName === 'BODY' || nodeName === 'HTML') {
    return element ? element.ownerDocument.documentElement : document.documentElement;
  }

  // .offsetParent will return the closest TH, TD or TABLE in case
  // no offsetParent is present, I hate this job...
  if (['TH', 'TD', 'TABLE'].indexOf(offsetParent.nodeName) !== -1 && getStyleComputedProperty(offsetParent, 'position') === 'static') {
    return getOffsetParent(offsetParent);
  }

  return offsetParent;
}

function isOffsetContainer(element) {
  var nodeName = element.nodeName;

  if (nodeName === 'BODY') {
    return false;
  }
  return nodeName === 'HTML' || getOffsetParent(element.firstElementChild) === element;
}

/**
 * Finds the root node (document, shadowDOM root) of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} node
 * @returns {Element} root node
 */
function getRoot(node) {
  if (node.parentNode !== null) {
    return getRoot(node.parentNode);
  }

  return node;
}

/**
 * Finds the offset parent common to the two provided nodes
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element1
 * @argument {Element} element2
 * @returns {Element} common offset parent
 */
function findCommonOffsetParent(element1, element2) {
  // This check is needed to avoid errors in case one of the elements isn't defined for any reason
  if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {
    return document.documentElement;
  }

  // Here we make sure to give as "start" the element that comes first in the DOM
  var order = element1.compareDocumentPosition(element2) & Node.DOCUMENT_POSITION_FOLLOWING;
  var start = order ? element1 : element2;
  var end = order ? element2 : element1;

  // Get common ancestor container
  var range = document.createRange();
  range.setStart(start, 0);
  range.setEnd(end, 0);
  var commonAncestorContainer = range.commonAncestorContainer;

  // Both nodes are inside #document

  if (element1 !== commonAncestorContainer && element2 !== commonAncestorContainer || start.contains(end)) {
    if (isOffsetContainer(commonAncestorContainer)) {
      return commonAncestorContainer;
    }

    return getOffsetParent(commonAncestorContainer);
  }

  // one of the nodes is inside shadowDOM, find which one
  var element1root = getRoot(element1);
  if (element1root.host) {
    return findCommonOffsetParent(element1root.host, element2);
  } else {
    return findCommonOffsetParent(element1, getRoot(element2).host);
  }
}

/**
 * Gets the scroll value of the given element in the given side (top and left)
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @argument {String} side `top` or `left`
 * @returns {number} amount of scrolled pixels
 */
function getScroll(element) {
  var side = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'top';

  var upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft';
  var nodeName = element.nodeName;

  if (nodeName === 'BODY' || nodeName === 'HTML') {
    var html = element.ownerDocument.documentElement;
    var scrollingElement = element.ownerDocument.scrollingElement || html;
    return scrollingElement[upperSide];
  }

  return element[upperSide];
}

/*
 * Sum or subtract the element scroll values (left and top) from a given rect object
 * @method
 * @memberof Popper.Utils
 * @param {Object} rect - Rect object you want to change
 * @param {HTMLElement} element - The element from the function reads the scroll values
 * @param {Boolean} subtract - set to true if you want to subtract the scroll values
 * @return {Object} rect - The modifier rect object
 */
function includeScroll(rect, element) {
  var subtract = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

  var scrollTop = getScroll(element, 'top');
  var scrollLeft = getScroll(element, 'left');
  var modifier = subtract ? -1 : 1;
  rect.top += scrollTop * modifier;
  rect.bottom += scrollTop * modifier;
  rect.left += scrollLeft * modifier;
  rect.right += scrollLeft * modifier;
  return rect;
}

/*
 * Helper to detect borders of a given element
 * @method
 * @memberof Popper.Utils
 * @param {CSSStyleDeclaration} styles
 * Result of `getStyleComputedProperty` on the given element
 * @param {String} axis - `x` or `y`
 * @return {number} borders - The borders size of the given axis
 */

function getBordersSize(styles, axis) {
  var sideA = axis === 'x' ? 'Left' : 'Top';
  var sideB = sideA === 'Left' ? 'Right' : 'Bottom';

  return parseFloat(styles['border' + sideA + 'Width']) + parseFloat(styles['border' + sideB + 'Width']);
}

function getSize(axis, body, html, computedStyle) {
  return Math.max(body['offset' + axis], body['scroll' + axis], html['client' + axis], html['offset' + axis], html['scroll' + axis], isIE(10) ? parseInt(html['offset' + axis]) + parseInt(computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')]) + parseInt(computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')]) : 0);
}

function getWindowSizes(document) {
  var body = document.body;
  var html = document.documentElement;
  var computedStyle = isIE(10) && getComputedStyle(html);

  return {
    height: getSize('Height', body, html, computedStyle),
    width: getSize('Width', body, html, computedStyle)
  };
}

var classCallCheck = function (instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
};

var createClass = function () {
  function defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  return function (Constructor, protoProps, staticProps) {
    if (protoProps) defineProperties(Constructor.prototype, protoProps);
    if (staticProps) defineProperties(Constructor, staticProps);
    return Constructor;
  };
}();





var defineProperty = function (obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
};

var _extends = Object.assign || function (target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i];

    for (var key in source) {
      if (Object.prototype.hasOwnProperty.call(source, key)) {
        target[key] = source[key];
      }
    }
  }

  return target;
};

/**
 * Given element offsets, generate an output similar to getBoundingClientRect
 * @method
 * @memberof Popper.Utils
 * @argument {Object} offsets
 * @returns {Object} ClientRect like output
 */
function getClientRect(offsets) {
  return _extends({}, offsets, {
    right: offsets.left + offsets.width,
    bottom: offsets.top + offsets.height
  });
}

/**
 * Get bounding client rect of given element
 * @method
 * @memberof Popper.Utils
 * @param {HTMLElement} element
 * @return {Object} client rect
 */
function getBoundingClientRect(element) {
  var rect = {};

  // IE10 10 FIX: Please, don't ask, the element isn't
  // considered in DOM in some circumstances...
  // This isn't reproducible in IE10 compatibility mode of IE11
  try {
    if (isIE(10)) {
      rect = element.getBoundingClientRect();
      var scrollTop = getScroll(element, 'top');
      var scrollLeft = getScroll(element, 'left');
      rect.top += scrollTop;
      rect.left += scrollLeft;
      rect.bottom += scrollTop;
      rect.right += scrollLeft;
    } else {
      rect = element.getBoundingClientRect();
    }
  } catch (e) {}

  var result = {
    left: rect.left,
    top: rect.top,
    width: rect.right - rect.left,
    height: rect.bottom - rect.top
  };

  // subtract scrollbar size from sizes
  var sizes = element.nodeName === 'HTML' ? getWindowSizes(element.ownerDocument) : {};
  var width = sizes.width || element.clientWidth || result.width;
  var height = sizes.height || element.clientHeight || result.height;

  var horizScrollbar = element.offsetWidth - width;
  var vertScrollbar = element.offsetHeight - height;

  // if an hypothetical scrollbar is detected, we must be sure it's not a `border`
  // we make this check conditional for performance reasons
  if (horizScrollbar || vertScrollbar) {
    var styles = getStyleComputedProperty(element);
    horizScrollbar -= getBordersSize(styles, 'x');
    vertScrollbar -= getBordersSize(styles, 'y');

    result.width -= horizScrollbar;
    result.height -= vertScrollbar;
  }

  return getClientRect(result);
}

function getOffsetRectRelativeToArbitraryNode(children, parent) {
  var fixedPosition = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

  var isIE10 = isIE(10);
  var isHTML = parent.nodeName === 'HTML';
  var childrenRect = getBoundingClientRect(children);
  var parentRect = getBoundingClientRect(parent);
  var scrollParent = getScrollParent(children);

  var styles = getStyleComputedProperty(parent);
  var borderTopWidth = parseFloat(styles.borderTopWidth);
  var borderLeftWidth = parseFloat(styles.borderLeftWidth);

  // In cases where the parent is fixed, we must ignore negative scroll in offset calc
  if (fixedPosition && isHTML) {
    parentRect.top = Math.max(parentRect.top, 0);
    parentRect.left = Math.max(parentRect.left, 0);
  }
  var offsets = getClientRect({
    top: childrenRect.top - parentRect.top - borderTopWidth,
    left: childrenRect.left - parentRect.left - borderLeftWidth,
    width: childrenRect.width,
    height: childrenRect.height
  });
  offsets.marginTop = 0;
  offsets.marginLeft = 0;

  // Subtract margins of documentElement in case it's being used as parent
  // we do this only on HTML because it's the only element that behaves
  // differently when margins are applied to it. The margins are included in
  // the box of the documentElement, in the other cases not.
  if (!isIE10 && isHTML) {
    var marginTop = parseFloat(styles.marginTop);
    var marginLeft = parseFloat(styles.marginLeft);

    offsets.top -= borderTopWidth - marginTop;
    offsets.bottom -= borderTopWidth - marginTop;
    offsets.left -= borderLeftWidth - marginLeft;
    offsets.right -= borderLeftWidth - marginLeft;

    // Attach marginTop and marginLeft because in some circumstances we may need them
    offsets.marginTop = marginTop;
    offsets.marginLeft = marginLeft;
  }

  if (isIE10 && !fixedPosition ? parent.contains(scrollParent) : parent === scrollParent && scrollParent.nodeName !== 'BODY') {
    offsets = includeScroll(offsets, parent);
  }

  return offsets;
}

function getViewportOffsetRectRelativeToArtbitraryNode(element) {
  var excludeScroll = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

  var html = element.ownerDocument.documentElement;
  var relativeOffset = getOffsetRectRelativeToArbitraryNode(element, html);
  var width = Math.max(html.clientWidth, window.innerWidth || 0);
  var height = Math.max(html.clientHeight, window.innerHeight || 0);

  var scrollTop = !excludeScroll ? getScroll(html) : 0;
  var scrollLeft = !excludeScroll ? getScroll(html, 'left') : 0;

  var offset = {
    top: scrollTop - relativeOffset.top + relativeOffset.marginTop,
    left: scrollLeft - relativeOffset.left + relativeOffset.marginLeft,
    width: width,
    height: height
  };

  return getClientRect(offset);
}

/**
 * Check if the given element is fixed or is inside a fixed parent
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @argument {Element} customContainer
 * @returns {Boolean} answer to "isFixed?"
 */
function isFixed(element) {
  var nodeName = element.nodeName;
  if (nodeName === 'BODY' || nodeName === 'HTML') {
    return false;
  }
  if (getStyleComputedProperty(element, 'position') === 'fixed') {
    return true;
  }
  var parentNode = getParentNode(element);
  if (!parentNode) {
    return false;
  }
  return isFixed(parentNode);
}

/**
 * Finds the first parent of an element that has a transformed property defined
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Element} first transformed parent or documentElement
 */

function getFixedPositionOffsetParent(element) {
  // This check is needed to avoid errors in case one of the elements isn't defined for any reason
  if (!element || !element.parentElement || isIE()) {
    return document.documentElement;
  }
  var el = element.parentElement;
  while (el && getStyleComputedProperty(el, 'transform') === 'none') {
    el = el.parentElement;
  }
  return el || document.documentElement;
}

/**
 * Computed the boundaries limits and return them
 * @method
 * @memberof Popper.Utils
 * @param {HTMLElement} popper
 * @param {HTMLElement} reference
 * @param {number} padding
 * @param {HTMLElement} boundariesElement - Element used to define the boundaries
 * @param {Boolean} fixedPosition - Is in fixed position mode
 * @returns {Object} Coordinates of the boundaries
 */
function getBoundaries(popper, reference, padding, boundariesElement) {
  var fixedPosition = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;

  // NOTE: 1 DOM access here

  var boundaries = { top: 0, left: 0 };
  var offsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, getReferenceNode(reference));

  // Handle viewport case
  if (boundariesElement === 'viewport') {
    boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent, fixedPosition);
  } else {
    // Handle other cases based on DOM element used as boundaries
    var boundariesNode = void 0;
    if (boundariesElement === 'scrollParent') {
      boundariesNode = getScrollParent(getParentNode(reference));
      if (boundariesNode.nodeName === 'BODY') {
        boundariesNode = popper.ownerDocument.documentElement;
      }
    } else if (boundariesElement === 'window') {
      boundariesNode = popper.ownerDocument.documentElement;
    } else {
      boundariesNode = boundariesElement;
    }

    var offsets = getOffsetRectRelativeToArbitraryNode(boundariesNode, offsetParent, fixedPosition);

    // In case of HTML, we need a different computation
    if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
      var _getWindowSizes = getWindowSizes(popper.ownerDocument),
          height = _getWindowSizes.height,
          width = _getWindowSizes.width;

      boundaries.top += offsets.top - offsets.marginTop;
      boundaries.bottom = height + offsets.top;
      boundaries.left += offsets.left - offsets.marginLeft;
      boundaries.right = width + offsets.left;
    } else {
      // for all the other DOM elements, this one is good
      boundaries = offsets;
    }
  }

  // Add paddings
  padding = padding || 0;
  var isPaddingNumber = typeof padding === 'number';
  boundaries.left += isPaddingNumber ? padding : padding.left || 0;
  boundaries.top += isPaddingNumber ? padding : padding.top || 0;
  boundaries.right -= isPaddingNumber ? padding : padding.right || 0;
  boundaries.bottom -= isPaddingNumber ? padding : padding.bottom || 0;

  return boundaries;
}

function getArea(_ref) {
  var width = _ref.width,
      height = _ref.height;

  return width * height;
}

/**
 * Utility used to transform the `auto` placement to the placement with more
 * available space.
 * @method
 * @memberof Popper.Utils
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function computeAutoPlacement(placement, refRect, popper, reference, boundariesElement) {
  var padding = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;

  if (placement.indexOf('auto') === -1) {
    return placement;
  }

  var boundaries = getBoundaries(popper, reference, padding, boundariesElement);

  var rects = {
    top: {
      width: boundaries.width,
      height: refRect.top - boundaries.top
    },
    right: {
      width: boundaries.right - refRect.right,
      height: boundaries.height
    },
    bottom: {
      width: boundaries.width,
      height: boundaries.bottom - refRect.bottom
    },
    left: {
      width: refRect.left - boundaries.left,
      height: boundaries.height
    }
  };

  var sortedAreas = Object.keys(rects).map(function (key) {
    return _extends({
      key: key
    }, rects[key], {
      area: getArea(rects[key])
    });
  }).sort(function (a, b) {
    return b.area - a.area;
  });

  var filteredAreas = sortedAreas.filter(function (_ref2) {
    var width = _ref2.width,
        height = _ref2.height;
    return width >= popper.clientWidth && height >= popper.clientHeight;
  });

  var computedPlacement = filteredAreas.length > 0 ? filteredAreas[0].key : sortedAreas[0].key;

  var variation = placement.split('-')[1];

  return computedPlacement + (variation ? '-' + variation : '');
}

/**
 * Get offsets to the reference element
 * @method
 * @memberof Popper.Utils
 * @param {Object} state
 * @param {Element} popper - the popper element
 * @param {Element} reference - the reference element (the popper will be relative to this)
 * @param {Element} fixedPosition - is in fixed position mode
 * @returns {Object} An object containing the offsets which will be applied to the popper
 */
function getReferenceOffsets(state, popper, reference) {
  var fixedPosition = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;

  var commonOffsetParent = fixedPosition ? getFixedPositionOffsetParent(popper) : findCommonOffsetParent(popper, getReferenceNode(reference));
  return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent, fixedPosition);
}

/**
 * Get the outer sizes of the given element (offset size + margins)
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Object} object containing width and height properties
 */
function getOuterSizes(element) {
  var window = element.ownerDocument.defaultView;
  var styles = window.getComputedStyle(element);
  var x = parseFloat(styles.marginTop || 0) + parseFloat(styles.marginBottom || 0);
  var y = parseFloat(styles.marginLeft || 0) + parseFloat(styles.marginRight || 0);
  var result = {
    width: element.offsetWidth + y,
    height: element.offsetHeight + x
  };
  return result;
}

/**
 * Get the opposite placement of the given one
 * @method
 * @memberof Popper.Utils
 * @argument {String} placement
 * @returns {String} flipped placement
 */
function getOppositePlacement(placement) {
  var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' };
  return placement.replace(/left|right|bottom|top/g, function (matched) {
    return hash[matched];
  });
}

/**
 * Get offsets to the popper
 * @method
 * @memberof Popper.Utils
 * @param {Object} position - CSS position the Popper will get applied
 * @param {HTMLElement} popper - the popper element
 * @param {Object} referenceOffsets - the reference offsets (the popper will be relative to this)
 * @param {String} placement - one of the valid placement options
 * @returns {Object} popperOffsets - An object containing the offsets which will be applied to the popper
 */
function getPopperOffsets(popper, referenceOffsets, placement) {
  placement = placement.split('-')[0];

  // Get popper node sizes
  var popperRect = getOuterSizes(popper);

  // Add position, width and height to our offsets object
  var popperOffsets = {
    width: popperRect.width,
    height: popperRect.height
  };

  // depending by the popper placement we have to compute its offsets slightly differently
  var isHoriz = ['right', 'left'].indexOf(placement) !== -1;
  var mainSide = isHoriz ? 'top' : 'left';
  var secondarySide = isHoriz ? 'left' : 'top';
  var measurement = isHoriz ? 'height' : 'width';
  var secondaryMeasurement = !isHoriz ? 'height' : 'width';

  popperOffsets[mainSide] = referenceOffsets[mainSide] + referenceOffsets[measurement] / 2 - popperRect[measurement] / 2;
  if (placement === secondarySide) {
    popperOffsets[secondarySide] = referenceOffsets[secondarySide] - popperRect[secondaryMeasurement];
  } else {
    popperOffsets[secondarySide] = referenceOffsets[getOppositePlacement(secondarySide)];
  }

  return popperOffsets;
}

/**
 * Mimics the `find` method of Array
 * @method
 * @memberof Popper.Utils
 * @argument {Array} arr
 * @argument prop
 * @argument value
 * @returns index or -1
 */
function find(arr, check) {
  // use native find if supported
  if (Array.prototype.find) {
    return arr.find(check);
  }

  // use `filter` to obtain the same behavior of `find`
  return arr.filter(check)[0];
}

/**
 * Return the index of the matching object
 * @method
 * @memberof Popper.Utils
 * @argument {Array} arr
 * @argument prop
 * @argument value
 * @returns index or -1
 */
function findIndex(arr, prop, value) {
  // use native findIndex if supported
  if (Array.prototype.findIndex) {
    return arr.findIndex(function (cur) {
      return cur[prop] === value;
    });
  }

  // use `find` + `indexOf` if `findIndex` isn't supported
  var match = find(arr, function (obj) {
    return obj[prop] === value;
  });
  return arr.indexOf(match);
}

/**
 * Loop trough the list of modifiers and run them in order,
 * each of them will then edit the data object.
 * @method
 * @memberof Popper.Utils
 * @param {dataObject} data
 * @param {Array} modifiers
 * @param {String} ends - Optional modifier name used as stopper
 * @returns {dataObject}
 */
function runModifiers(modifiers, data, ends) {
  var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends));

  modifiersToRun.forEach(function (modifier) {
    if (modifier['function']) {
      // eslint-disable-line dot-notation
      console.warn('`modifier.function` is deprecated, use `modifier.fn`!');
    }
    var fn = modifier['function'] || modifier.fn; // eslint-disable-line dot-notation
    if (modifier.enabled && isFunction(fn)) {
      // Add properties to offsets to make them a complete clientRect object
      // we do this before each modifier to make sure the previous one doesn't
      // mess with these values
      data.offsets.popper = getClientRect(data.offsets.popper);
      data.offsets.reference = getClientRect(data.offsets.reference);

      data = fn(data, modifier);
    }
  });

  return data;
}

/**
 * Updates the position of the popper, computing the new offsets and applying
 * the new style.<br />
 * Prefer `scheduleUpdate` over `update` because of performance reasons.
 * @method
 * @memberof Popper
 */
function update() {
  // if popper is destroyed, don't perform any further update
  if (this.state.isDestroyed) {
    return;
  }

  var data = {
    instance: this,
    styles: {},
    arrowStyles: {},
    attributes: {},
    flipped: false,
    offsets: {}
  };

  // compute reference element offsets
  data.offsets.reference = getReferenceOffsets(this.state, this.popper, this.reference, this.options.positionFixed);

  // compute auto placement, store placement inside the data object,
  // modifiers will be able to edit `placement` if needed
  // and refer to originalPlacement to know the original value
  data.placement = computeAutoPlacement(this.options.placement, data.offsets.reference, this.popper, this.reference, this.options.modifiers.flip.boundariesElement, this.options.modifiers.flip.padding);

  // store the computed placement inside `originalPlacement`
  data.originalPlacement = data.placement;

  data.positionFixed = this.options.positionFixed;

  // compute the popper offsets
  data.offsets.popper = getPopperOffsets(this.popper, data.offsets.reference, data.placement);

  data.offsets.popper.position = this.options.positionFixed ? 'fixed' : 'absolute';

  // run the modifiers
  data = runModifiers(this.modifiers, data);

  // the first `update` will call `onCreate` callback
  // the other ones will call `onUpdate` callback
  if (!this.state.isCreated) {
    this.state.isCreated = true;
    this.options.onCreate(data);
  } else {
    this.options.onUpdate(data);
  }
}

/**
 * Helper used to know if the given modifier is enabled.
 * @method
 * @memberof Popper.Utils
 * @returns {Boolean}
 */
function isModifierEnabled(modifiers, modifierName) {
  return modifiers.some(function (_ref) {
    var name = _ref.name,
        enabled = _ref.enabled;
    return enabled && name === modifierName;
  });
}

/**
 * Get the prefixed supported property name
 * @method
 * @memberof Popper.Utils
 * @argument {String} property (camelCase)
 * @returns {String} prefixed property (camelCase or PascalCase, depending on the vendor prefix)
 */
function getSupportedPropertyName(property) {
  var prefixes = [false, 'ms', 'Webkit', 'Moz', 'O'];
  var upperProp = property.charAt(0).toUpperCase() + property.slice(1);

  for (var i = 0; i < prefixes.length; i++) {
    var prefix = prefixes[i];
    var toCheck = prefix ? '' + prefix + upperProp : property;
    if (typeof document.body.style[toCheck] !== 'undefined') {
      return toCheck;
    }
  }
  return null;
}

/**
 * Destroys the popper.
 * @method
 * @memberof Popper
 */
function destroy() {
  this.state.isDestroyed = true;

  // touch DOM only if `applyStyle` modifier is enabled
  if (isModifierEnabled(this.modifiers, 'applyStyle')) {
    this.popper.removeAttribute('x-placement');
    this.popper.style.position = '';
    this.popper.style.top = '';
    this.popper.style.left = '';
    this.popper.style.right = '';
    this.popper.style.bottom = '';
    this.popper.style.willChange = '';
    this.popper.style[getSupportedPropertyName('transform')] = '';
  }

  this.disableEventListeners();

  // remove the popper if user explicitly asked for the deletion on destroy
  // do not use `remove` because IE11 doesn't support it
  if (this.options.removeOnDestroy) {
    this.popper.parentNode.removeChild(this.popper);
  }
  return this;
}

/**
 * Get the window associated with the element
 * @argument {Element} element
 * @returns {Window}
 */
function getWindow(element) {
  var ownerDocument = element.ownerDocument;
  return ownerDocument ? ownerDocument.defaultView : window;
}

function attachToScrollParents(scrollParent, event, callback, scrollParents) {
  var isBody = scrollParent.nodeName === 'BODY';
  var target = isBody ? scrollParent.ownerDocument.defaultView : scrollParent;
  target.addEventListener(event, callback, { passive: true });

  if (!isBody) {
    attachToScrollParents(getScrollParent(target.parentNode), event, callback, scrollParents);
  }
  scrollParents.push(target);
}

/**
 * Setup needed event listeners used to update the popper position
 * @method
 * @memberof Popper.Utils
 * @private
 */
function setupEventListeners(reference, options, state, updateBound) {
  // Resize event listener on window
  state.updateBound = updateBound;
  getWindow(reference).addEventListener('resize', state.updateBound, { passive: true });

  // Scroll event listener on scroll parents
  var scrollElement = getScrollParent(reference);
  attachToScrollParents(scrollElement, 'scroll', state.updateBound, state.scrollParents);
  state.scrollElement = scrollElement;
  state.eventsEnabled = true;

  return state;
}

/**
 * It will add resize/scroll events and start recalculating
 * position of the popper element when they are triggered.
 * @method
 * @memberof Popper
 */
function enableEventListeners() {
  if (!this.state.eventsEnabled) {
    this.state = setupEventListeners(this.reference, this.options, this.state, this.scheduleUpdate);
  }
}

/**
 * Remove event listeners used to update the popper position
 * @method
 * @memberof Popper.Utils
 * @private
 */
function removeEventListeners(reference, state) {
  // Remove resize event listener on window
  getWindow(reference).removeEventListener('resize', state.updateBound);

  // Remove scroll event listener on scroll parents
  state.scrollParents.forEach(function (target) {
    target.removeEventListener('scroll', state.updateBound);
  });

  // Reset state
  state.updateBound = null;
  state.scrollParents = [];
  state.scrollElement = null;
  state.eventsEnabled = false;
  return state;
}

/**
 * It will remove resize/scroll events and won't recalculate popper position
 * when they are triggered. It also won't trigger `onUpdate` callback anymore,
 * unless you call `update` method manually.
 * @method
 * @memberof Popper
 */
function disableEventListeners() {
  if (this.state.eventsEnabled) {
    cancelAnimationFrame(this.scheduleUpdate);
    this.state = removeEventListeners(this.reference, this.state);
  }
}

/**
 * Tells if a given input is a number
 * @method
 * @memberof Popper.Utils
 * @param {*} input to check
 * @return {Boolean}
 */
function isNumeric(n) {
  return n !== '' && !isNaN(parseFloat(n)) && isFinite(n);
}

/**
 * Set the style to the given popper
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element - Element to apply the style to
 * @argument {Object} styles
 * Object with a list of properties and values which will be applied to the element
 */
function setStyles(element, styles) {
  Object.keys(styles).forEach(function (prop) {
    var unit = '';
    // add unit if the value is numeric and is one of the following
    if (['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !== -1 && isNumeric(styles[prop])) {
      unit = 'px';
    }
    element.style[prop] = styles[prop] + unit;
  });
}

/**
 * Set the attributes to the given popper
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element - Element to apply the attributes to
 * @argument {Object} styles
 * Object with a list of properties and values which will be applied to the element
 */
function setAttributes(element, attributes) {
  Object.keys(attributes).forEach(function (prop) {
    var value = attributes[prop];
    if (value !== false) {
      element.setAttribute(prop, attributes[prop]);
    } else {
      element.removeAttribute(prop);
    }
  });
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Object} data.styles - List of style properties - values to apply to popper element
 * @argument {Object} data.attributes - List of attribute properties - values to apply to popper element
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The same data object
 */
function applyStyle(data) {
  // any property present in `data.styles` will be applied to the popper,
  // in this way we can make the 3rd party modifiers add custom styles to it
  // Be aware, modifiers could override the properties defined in the previous
  // lines of this modifier!
  setStyles(data.instance.popper, data.styles);

  // any property present in `data.attributes` will be applied to the popper,
  // they will be set as HTML attributes of the element
  setAttributes(data.instance.popper, data.attributes);

  // if arrowElement is defined and arrowStyles has some properties
  if (data.arrowElement && Object.keys(data.arrowStyles).length) {
    setStyles(data.arrowElement, data.arrowStyles);
  }

  return data;
}

/**
 * Set the x-placement attribute before everything else because it could be used
 * to add margins to the popper margins needs to be calculated to get the
 * correct popper offsets.
 * @method
 * @memberof Popper.modifiers
 * @param {HTMLElement} reference - The reference element used to position the popper
 * @param {HTMLElement} popper - The HTML element used as popper
 * @param {Object} options - Popper.js options
 */
function applyStyleOnLoad(reference, popper, options, modifierOptions, state) {
  // compute reference element offsets
  var referenceOffsets = getReferenceOffsets(state, popper, reference, options.positionFixed);

  // compute auto placement, store placement inside the data object,
  // modifiers will be able to edit `placement` if needed
  // and refer to originalPlacement to know the original value
  var placement = computeAutoPlacement(options.placement, referenceOffsets, popper, reference, options.modifiers.flip.boundariesElement, options.modifiers.flip.padding);

  popper.setAttribute('x-placement', placement);

  // Apply `position` to popper before anything else because
  // without the position applied we can't guarantee correct computations
  setStyles(popper, { position: options.positionFixed ? 'fixed' : 'absolute' });

  return options;
}

/**
 * @function
 * @memberof Popper.Utils
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Boolean} shouldRound - If the offsets should be rounded at all
 * @returns {Object} The popper's position offsets rounded
 *
 * The tale of pixel-perfect positioning. It's still not 100% perfect, but as
 * good as it can be within reason.
 * Discussion here: https://github.com/FezVrasta/popper.js/pull/715
 *
 * Low DPI screens cause a popper to be blurry if not using full pixels (Safari
 * as well on High DPI screens).
 *
 * Firefox prefers no rounding for positioning and does not have blurriness on
 * high DPI screens.
 *
 * Only horizontal placement and left/right values need to be considered.
 */
function getRoundedOffsets(data, shouldRound) {
  var _data$offsets = data.offsets,
      popper = _data$offsets.popper,
      reference = _data$offsets.reference;
  var round = Math.round,
      floor = Math.floor;

  var noRound = function noRound(v) {
    return v;
  };

  var referenceWidth = round(reference.width);
  var popperWidth = round(popper.width);

  var isVertical = ['left', 'right'].indexOf(data.placement) !== -1;
  var isVariation = data.placement.indexOf('-') !== -1;
  var sameWidthParity = referenceWidth % 2 === popperWidth % 2;
  var bothOddWidth = referenceWidth % 2 === 1 && popperWidth % 2 === 1;

  var horizontalToInteger = !shouldRound ? noRound : isVertical || isVariation || sameWidthParity ? round : floor;
  var verticalToInteger = !shouldRound ? noRound : round;

  return {
    left: horizontalToInteger(bothOddWidth && !isVariation && shouldRound ? popper.left - 1 : popper.left),
    top: verticalToInteger(popper.top),
    bottom: verticalToInteger(popper.bottom),
    right: horizontalToInteger(popper.right)
  };
}

var isFirefox = isBrowser && /Firefox/i.test(navigator.userAgent);

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function computeStyle(data, options) {
  var x = options.x,
      y = options.y;
  var popper = data.offsets.popper;

  // Remove this legacy support in Popper.js v2

  var legacyGpuAccelerationOption = find(data.instance.modifiers, function (modifier) {
    return modifier.name === 'applyStyle';
  }).gpuAcceleration;
  if (legacyGpuAccelerationOption !== undefined) {
    console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');
  }
  var gpuAcceleration = legacyGpuAccelerationOption !== undefined ? legacyGpuAccelerationOption : options.gpuAcceleration;

  var offsetParent = getOffsetParent(data.instance.popper);
  var offsetParentRect = getBoundingClientRect(offsetParent);

  // Styles
  var styles = {
    position: popper.position
  };

  var offsets = getRoundedOffsets(data, window.devicePixelRatio < 2 || !isFirefox);

  var sideA = x === 'bottom' ? 'top' : 'bottom';
  var sideB = y === 'right' ? 'left' : 'right';

  // if gpuAcceleration is set to `true` and transform is supported,
  //  we use `translate3d` to apply the position to the popper we
  // automatically use the supported prefixed version if needed
  var prefixedProperty = getSupportedPropertyName('transform');

  // now, let's make a step back and look at this code closely (wtf?)
  // If the content of the popper grows once it's been positioned, it
  // may happen that the popper gets misplaced because of the new content
  // overflowing its reference element
  // To avoid this problem, we provide two options (x and y), which allow
  // the consumer to define the offset origin.
  // If we position a popper on top of a reference element, we can set
  // `x` to `top` to make the popper grow towards its top instead of
  // its bottom.
  var left = void 0,
      top = void 0;
  if (sideA === 'bottom') {
    // when offsetParent is <html> the positioning is relative to the bottom of the screen (excluding the scrollbar)
    // and not the bottom of the html element
    if (offsetParent.nodeName === 'HTML') {
      top = -offsetParent.clientHeight + offsets.bottom;
    } else {
      top = -offsetParentRect.height + offsets.bottom;
    }
  } else {
    top = offsets.top;
  }
  if (sideB === 'right') {
    if (offsetParent.nodeName === 'HTML') {
      left = -offsetParent.clientWidth + offsets.right;
    } else {
      left = -offsetParentRect.width + offsets.right;
    }
  } else {
    left = offsets.left;
  }
  if (gpuAcceleration && prefixedProperty) {
    styles[prefixedProperty] = 'translate3d(' + left + 'px, ' + top + 'px, 0)';
    styles[sideA] = 0;
    styles[sideB] = 0;
    styles.willChange = 'transform';
  } else {
    // othwerise, we use the standard `top`, `left`, `bottom` and `right` properties
    var invertTop = sideA === 'bottom' ? -1 : 1;
    var invertLeft = sideB === 'right' ? -1 : 1;
    styles[sideA] = top * invertTop;
    styles[sideB] = left * invertLeft;
    styles.willChange = sideA + ', ' + sideB;
  }

  // Attributes
  var attributes = {
    'x-placement': data.placement
  };

  // Update `data` attributes, styles and arrowStyles
  data.attributes = _extends({}, attributes, data.attributes);
  data.styles = _extends({}, styles, data.styles);
  data.arrowStyles = _extends({}, data.offsets.arrow, data.arrowStyles);

  return data;
}

/**
 * Helper used to know if the given modifier depends from another one.<br />
 * It checks if the needed modifier is listed and enabled.
 * @method
 * @memberof Popper.Utils
 * @param {Array} modifiers - list of modifiers
 * @param {String} requestingName - name of requesting modifier
 * @param {String} requestedName - name of requested modifier
 * @returns {Boolean}
 */
function isModifierRequired(modifiers, requestingName, requestedName) {
  var requesting = find(modifiers, function (_ref) {
    var name = _ref.name;
    return name === requestingName;
  });

  var isRequired = !!requesting && modifiers.some(function (modifier) {
    return modifier.name === requestedName && modifier.enabled && modifier.order < requesting.order;
  });

  if (!isRequired) {
    var _requesting = '`' + requestingName + '`';
    var requested = '`' + requestedName + '`';
    console.warn(requested + ' modifier is required by ' + _requesting + ' modifier in order to work, be sure to include it before ' + _requesting + '!');
  }
  return isRequired;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function arrow(data, options) {
  var _data$offsets$arrow;

  // arrow depends on keepTogether in order to work
  if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
    return data;
  }

  var arrowElement = options.element;

  // if arrowElement is a string, suppose it's a CSS selector
  if (typeof arrowElement === 'string') {
    arrowElement = data.instance.popper.querySelector(arrowElement);

    // if arrowElement is not found, don't run the modifier
    if (!arrowElement) {
      return data;
    }
  } else {
    // if the arrowElement isn't a query selector we must check that the
    // provided DOM node is child of its popper node
    if (!data.instance.popper.contains(arrowElement)) {
      console.warn('WARNING: `arrow.element` must be child of its popper element!');
      return data;
    }
  }

  var placement = data.placement.split('-')[0];
  var _data$offsets = data.offsets,
      popper = _data$offsets.popper,
      reference = _data$offsets.reference;

  var isVertical = ['left', 'right'].indexOf(placement) !== -1;

  var len = isVertical ? 'height' : 'width';
  var sideCapitalized = isVertical ? 'Top' : 'Left';
  var side = sideCapitalized.toLowerCase();
  var altSide = isVertical ? 'left' : 'top';
  var opSide = isVertical ? 'bottom' : 'right';
  var arrowElementSize = getOuterSizes(arrowElement)[len];

  //
  // extends keepTogether behavior making sure the popper and its
  // reference have enough pixels in conjunction
  //

  // top/left side
  if (reference[opSide] - arrowElementSize < popper[side]) {
    data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowElementSize);
  }
  // bottom/right side
  if (reference[side] + arrowElementSize > popper[opSide]) {
    data.offsets.popper[side] += reference[side] + arrowElementSize - popper[opSide];
  }
  data.offsets.popper = getClientRect(data.offsets.popper);

  // compute center of the popper
  var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;

  // Compute the sideValue using the updated popper offsets
  // take popper margin in account because we don't have this info available
  var css = getStyleComputedProperty(data.instance.popper);
  var popperMarginSide = parseFloat(css['margin' + sideCapitalized]);
  var popperBorderSide = parseFloat(css['border' + sideCapitalized + 'Width']);
  var sideValue = center - data.offsets.popper[side] - popperMarginSide - popperBorderSide;

  // prevent arrowElement from being placed not contiguously to its popper
  sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);

  data.arrowElement = arrowElement;
  data.offsets.arrow = (_data$offsets$arrow = {}, defineProperty(_data$offsets$arrow, side, Math.round(sideValue)), defineProperty(_data$offsets$arrow, altSide, ''), _data$offsets$arrow);

  return data;
}

/**
 * Get the opposite placement variation of the given one
 * @method
 * @memberof Popper.Utils
 * @argument {String} placement variation
 * @returns {String} flipped placement variation
 */
function getOppositeVariation(variation) {
  if (variation === 'end') {
    return 'start';
  } else if (variation === 'start') {
    return 'end';
  }
  return variation;
}

/**
 * List of accepted placements to use as values of the `placement` option.<br />
 * Valid placements are:
 * - `auto`
 * - `top`
 * - `right`
 * - `bottom`
 * - `left`
 *
 * Each placement can have a variation from this list:
 * - `-start`
 * - `-end`
 *
 * Variations are interpreted easily if you think of them as the left to right
 * written languages. Horizontally (`top` and `bottom`), `start` is left and `end`
 * is right.<br />
 * Vertically (`left` and `right`), `start` is top and `end` is bottom.
 *
 * Some valid examples are:
 * - `top-end` (on top of reference, right aligned)
 * - `right-start` (on right of reference, top aligned)
 * - `bottom` (on bottom, centered)
 * - `auto-end` (on the side with more space available, alignment depends by placement)
 *
 * @static
 * @type {Array}
 * @enum {String}
 * @readonly
 * @method placements
 * @memberof Popper
 */
var placements = ['auto-start', 'auto', 'auto-end', 'top-start', 'top', 'top-end', 'right-start', 'right', 'right-end', 'bottom-end', 'bottom', 'bottom-start', 'left-end', 'left', 'left-start'];

// Get rid of `auto` `auto-start` and `auto-end`
var validPlacements = placements.slice(3);

/**
 * Given an initial placement, returns all the subsequent placements
 * clockwise (or counter-clockwise).
 *
 * @method
 * @memberof Popper.Utils
 * @argument {String} placement - A valid placement (it accepts variations)
 * @argument {Boolean} counter - Set to true to walk the placements counterclockwise
 * @returns {Array} placements including their variations
 */
function clockwise(placement) {
  var counter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

  var index = validPlacements.indexOf(placement);
  var arr = validPlacements.slice(index + 1).concat(validPlacements.slice(0, index));
  return counter ? arr.reverse() : arr;
}

var BEHAVIORS = {
  FLIP: 'flip',
  CLOCKWISE: 'clockwise',
  COUNTERCLOCKWISE: 'counterclockwise'
};

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function flip(data, options) {
  // if `inner` modifier is enabled, we can't use the `flip` modifier
  if (isModifierEnabled(data.instance.modifiers, 'inner')) {
    return data;
  }

  if (data.flipped && data.placement === data.originalPlacement) {
    // seems like flip is trying to loop, probably there's not enough space on any of the flippable sides
    return data;
  }

  var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, options.boundariesElement, data.positionFixed);

  var placement = data.placement.split('-')[0];
  var placementOpposite = getOppositePlacement(placement);
  var variation = data.placement.split('-')[1] || '';

  var flipOrder = [];

  switch (options.behavior) {
    case BEHAVIORS.FLIP:
      flipOrder = [placement, placementOpposite];
      break;
    case BEHAVIORS.CLOCKWISE:
      flipOrder = clockwise(placement);
      break;
    case BEHAVIORS.COUNTERCLOCKWISE:
      flipOrder = clockwise(placement, true);
      break;
    default:
      flipOrder = options.behavior;
  }

  flipOrder.forEach(function (step, index) {
    if (placement !== step || flipOrder.length === index + 1) {
      return data;
    }

    placement = data.placement.split('-')[0];
    placementOpposite = getOppositePlacement(placement);

    var popperOffsets = data.offsets.popper;
    var refOffsets = data.offsets.reference;

    // using floor because the reference offsets may contain decimals we are not going to consider here
    var floor = Math.floor;
    var overlapsRef = placement === 'left' && floor(popperOffsets.right) > floor(refOffsets.left) || placement === 'right' && floor(popperOffsets.left) < floor(refOffsets.right) || placement === 'top' && floor(popperOffsets.bottom) > floor(refOffsets.top) || placement === 'bottom' && floor(popperOffsets.top) < floor(refOffsets.bottom);

    var overflowsLeft = floor(popperOffsets.left) < floor(boundaries.left);
    var overflowsRight = floor(popperOffsets.right) > floor(boundaries.right);
    var overflowsTop = floor(popperOffsets.top) < floor(boundaries.top);
    var overflowsBottom = floor(popperOffsets.bottom) > floor(boundaries.bottom);

    var overflowsBoundaries = placement === 'left' && overflowsLeft || placement === 'right' && overflowsRight || placement === 'top' && overflowsTop || placement === 'bottom' && overflowsBottom;

    // flip the variation if required
    var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;

    // flips variation if reference element overflows boundaries
    var flippedVariationByRef = !!options.flipVariations && (isVertical && variation === 'start' && overflowsLeft || isVertical && variation === 'end' && overflowsRight || !isVertical && variation === 'start' && overflowsTop || !isVertical && variation === 'end' && overflowsBottom);

    // flips variation if popper content overflows boundaries
    var flippedVariationByContent = !!options.flipVariationsByContent && (isVertical && variation === 'start' && overflowsRight || isVertical && variation === 'end' && overflowsLeft || !isVertical && variation === 'start' && overflowsBottom || !isVertical && variation === 'end' && overflowsTop);

    var flippedVariation = flippedVariationByRef || flippedVariationByContent;

    if (overlapsRef || overflowsBoundaries || flippedVariation) {
      // this boolean to detect any flip loop
      data.flipped = true;

      if (overlapsRef || overflowsBoundaries) {
        placement = flipOrder[index + 1];
      }

      if (flippedVariation) {
        variation = getOppositeVariation(variation);
      }

      data.placement = placement + (variation ? '-' + variation : '');

      // this object contains `position`, we want to preserve it along with
      // any additional property we may add in the future
      data.offsets.popper = _extends({}, data.offsets.popper, getPopperOffsets(data.instance.popper, data.offsets.reference, data.placement));

      data = runModifiers(data.instance.modifiers, data, 'flip');
    }
  });
  return data;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function keepTogether(data) {
  var _data$offsets = data.offsets,
      popper = _data$offsets.popper,
      reference = _data$offsets.reference;

  var placement = data.placement.split('-')[0];
  var floor = Math.floor;
  var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
  var side = isVertical ? 'right' : 'bottom';
  var opSide = isVertical ? 'left' : 'top';
  var measurement = isVertical ? 'width' : 'height';

  if (popper[side] < floor(reference[opSide])) {
    data.offsets.popper[opSide] = floor(reference[opSide]) - popper[measurement];
  }
  if (popper[opSide] > floor(reference[side])) {
    data.offsets.popper[opSide] = floor(reference[side]);
  }

  return data;
}

/**
 * Converts a string containing value + unit into a px value number
 * @function
 * @memberof {modifiers~offset}
 * @private
 * @argument {String} str - Value + unit string
 * @argument {String} measurement - `height` or `width`
 * @argument {Object} popperOffsets
 * @argument {Object} referenceOffsets
 * @returns {Number|String}
 * Value in pixels, or original string if no values were extracted
 */
function toValue(str, measurement, popperOffsets, referenceOffsets) {
  // separate value from unit
  var split = str.match(/((?:\-|\+)?\d*\.?\d*)(.*)/);
  var value = +split[1];
  var unit = split[2];

  // If it's not a number it's an operator, I guess
  if (!value) {
    return str;
  }

  if (unit.indexOf('%') === 0) {
    var element = void 0;
    switch (unit) {
      case '%p':
        element = popperOffsets;
        break;
      case '%':
      case '%r':
      default:
        element = referenceOffsets;
    }

    var rect = getClientRect(element);
    return rect[measurement] / 100 * value;
  } else if (unit === 'vh' || unit === 'vw') {
    // if is a vh or vw, we calculate the size based on the viewport
    var size = void 0;
    if (unit === 'vh') {
      size = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
    } else {
      size = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
    }
    return size / 100 * value;
  } else {
    // if is an explicit pixel unit, we get rid of the unit and keep the value
    // if is an implicit unit, it's px, and we return just the value
    return value;
  }
}

/**
 * Parse an `offset` string to extrapolate `x` and `y` numeric offsets.
 * @function
 * @memberof {modifiers~offset}
 * @private
 * @argument {String} offset
 * @argument {Object} popperOffsets
 * @argument {Object} referenceOffsets
 * @argument {String} basePlacement
 * @returns {Array} a two cells array with x and y offsets in numbers
 */
function parseOffset(offset, popperOffsets, referenceOffsets, basePlacement) {
  var offsets = [0, 0];

  // Use height if placement is left or right and index is 0 otherwise use width
  // in this way the first offset will use an axis and the second one
  // will use the other one
  var useHeight = ['right', 'left'].indexOf(basePlacement) !== -1;

  // Split the offset string to obtain a list of values and operands
  // The regex addresses values with the plus or minus sign in front (+10, -20, etc)
  var fragments = offset.split(/(\+|\-)/).map(function (frag) {
    return frag.trim();
  });

  // Detect if the offset string contains a pair of values or a single one
  // they could be separated by comma or space
  var divider = fragments.indexOf(find(fragments, function (frag) {
    return frag.search(/,|\s/) !== -1;
  }));

  if (fragments[divider] && fragments[divider].indexOf(',') === -1) {
    console.warn('Offsets separated by white space(s) are deprecated, use a comma (,) instead.');
  }

  // If divider is found, we divide the list of values and operands to divide
  // them by ofset X and Y.
  var splitRegex = /\s*,\s*|\s+/;
  var ops = divider !== -1 ? [fragments.slice(0, divider).concat([fragments[divider].split(splitRegex)[0]]), [fragments[divider].split(splitRegex)[1]].concat(fragments.slice(divider + 1))] : [fragments];

  // Convert the values with units to absolute pixels to allow our computations
  ops = ops.map(function (op, index) {
    // Most of the units rely on the orientation of the popper
    var measurement = (index === 1 ? !useHeight : useHeight) ? 'height' : 'width';
    var mergeWithPrevious = false;
    return op
    // This aggregates any `+` or `-` sign that aren't considered operators
    // e.g.: 10 + +5 => [10, +, +5]
    .reduce(function (a, b) {
      if (a[a.length - 1] === '' && ['+', '-'].indexOf(b) !== -1) {
        a[a.length - 1] = b;
        mergeWithPrevious = true;
        return a;
      } else if (mergeWithPrevious) {
        a[a.length - 1] += b;
        mergeWithPrevious = false;
        return a;
      } else {
        return a.concat(b);
      }
    }, [])
    // Here we convert the string values into number values (in px)
    .map(function (str) {
      return toValue(str, measurement, popperOffsets, referenceOffsets);
    });
  });

  // Loop trough the offsets arrays and execute the operations
  ops.forEach(function (op, index) {
    op.forEach(function (frag, index2) {
      if (isNumeric(frag)) {
        offsets[index] += frag * (op[index2 - 1] === '-' ? -1 : 1);
      }
    });
  });
  return offsets;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @argument {Number|String} options.offset=0
 * The offset value as described in the modifier description
 * @returns {Object} The data object, properly modified
 */
function offset(data, _ref) {
  var offset = _ref.offset;
  var placement = data.placement,
      _data$offsets = data.offsets,
      popper = _data$offsets.popper,
      reference = _data$offsets.reference;

  var basePlacement = placement.split('-')[0];

  var offsets = void 0;
  if (isNumeric(+offset)) {
    offsets = [+offset, 0];
  } else {
    offsets = parseOffset(offset, popper, reference, basePlacement);
  }

  if (basePlacement === 'left') {
    popper.top += offsets[0];
    popper.left -= offsets[1];
  } else if (basePlacement === 'right') {
    popper.top += offsets[0];
    popper.left += offsets[1];
  } else if (basePlacement === 'top') {
    popper.left += offsets[0];
    popper.top -= offsets[1];
  } else if (basePlacement === 'bottom') {
    popper.left += offsets[0];
    popper.top += offsets[1];
  }

  data.popper = popper;
  return data;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function preventOverflow(data, options) {
  var boundariesElement = options.boundariesElement || getOffsetParent(data.instance.popper);

  // If offsetParent is the reference element, we really want to
  // go one step up and use the next offsetParent as reference to
  // avoid to make this modifier completely useless and look like broken
  if (data.instance.reference === boundariesElement) {
    boundariesElement = getOffsetParent(boundariesElement);
  }

  // NOTE: DOM access here
  // resets the popper's position so that the document size can be calculated excluding
  // the size of the popper element itself
  var transformProp = getSupportedPropertyName('transform');
  var popperStyles = data.instance.popper.style; // assignment to help minification
  var top = popperStyles.top,
      left = popperStyles.left,
      transform = popperStyles[transformProp];

  popperStyles.top = '';
  popperStyles.left = '';
  popperStyles[transformProp] = '';

  var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, boundariesElement, data.positionFixed);

  // NOTE: DOM access here
  // restores the original style properties after the offsets have been computed
  popperStyles.top = top;
  popperStyles.left = left;
  popperStyles[transformProp] = transform;

  options.boundaries = boundaries;

  var order = options.priority;
  var popper = data.offsets.popper;

  var check = {
    primary: function primary(placement) {
      var value = popper[placement];
      if (popper[placement] < boundaries[placement] && !options.escapeWithReference) {
        value = Math.max(popper[placement], boundaries[placement]);
      }
      return defineProperty({}, placement, value);
    },
    secondary: function secondary(placement) {
      var mainSide = placement === 'right' ? 'left' : 'top';
      var value = popper[mainSide];
      if (popper[placement] > boundaries[placement] && !options.escapeWithReference) {
        value = Math.min(popper[mainSide], boundaries[placement] - (placement === 'right' ? popper.width : popper.height));
      }
      return defineProperty({}, mainSide, value);
    }
  };

  order.forEach(function (placement) {
    var side = ['left', 'top'].indexOf(placement) !== -1 ? 'primary' : 'secondary';
    popper = _extends({}, popper, check[side](placement));
  });

  data.offsets.popper = popper;

  return data;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function shift(data) {
  var placement = data.placement;
  var basePlacement = placement.split('-')[0];
  var shiftvariation = placement.split('-')[1];

  // if shift shiftvariation is specified, run the modifier
  if (shiftvariation) {
    var _data$offsets = data.offsets,
        reference = _data$offsets.reference,
        popper = _data$offsets.popper;

    var isVertical = ['bottom', 'top'].indexOf(basePlacement) !== -1;
    var side = isVertical ? 'left' : 'top';
    var measurement = isVertical ? 'width' : 'height';

    var shiftOffsets = {
      start: defineProperty({}, side, reference[side]),
      end: defineProperty({}, side, reference[side] + reference[measurement] - popper[measurement])
    };

    data.offsets.popper = _extends({}, popper, shiftOffsets[shiftvariation]);
  }

  return data;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function hide(data) {
  if (!isModifierRequired(data.instance.modifiers, 'hide', 'preventOverflow')) {
    return data;
  }

  var refRect = data.offsets.reference;
  var bound = find(data.instance.modifiers, function (modifier) {
    return modifier.name === 'preventOverflow';
  }).boundaries;

  if (refRect.bottom < bound.top || refRect.left > bound.right || refRect.top > bound.bottom || refRect.right < bound.left) {
    // Avoid unnecessary DOM access if visibility hasn't changed
    if (data.hide === true) {
      return data;
    }

    data.hide = true;
    data.attributes['x-out-of-boundaries'] = '';
  } else {
    // Avoid unnecessary DOM access if visibility hasn't changed
    if (data.hide === false) {
      return data;
    }

    data.hide = false;
    data.attributes['x-out-of-boundaries'] = false;
  }

  return data;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function inner(data) {
  var placement = data.placement;
  var basePlacement = placement.split('-')[0];
  var _data$offsets = data.offsets,
      popper = _data$offsets.popper,
      reference = _data$offsets.reference;

  var isHoriz = ['left', 'right'].indexOf(basePlacement) !== -1;

  var subtractLength = ['top', 'left'].indexOf(basePlacement) === -1;

  popper[isHoriz ? 'left' : 'top'] = reference[basePlacement] - (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);

  data.placement = getOppositePlacement(placement);
  data.offsets.popper = getClientRect(popper);

  return data;
}

/**
 * Modifier function, each modifier can have a function of this type assigned
 * to its `fn` property.<br />
 * These functions will be called on each update, this means that you must
 * make sure they are performant enough to avoid performance bottlenecks.
 *
 * @function ModifierFn
 * @argument {dataObject} data - The data object generated by `update` method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {dataObject} The data object, properly modified
 */

/**
 * Modifiers are plugins used to alter the behavior of your poppers.<br />
 * Popper.js uses a set of 9 modifiers to provide all the basic functionalities
 * needed by the library.
 *
 * Usually you don't want to override the `order`, `fn` and `onLoad` props.
 * All the other properties are configurations that could be tweaked.
 * @namespace modifiers
 */
var modifiers = {
  /**
   * Modifier used to shift the popper on the start or end of its reference
   * element.<br />
   * It will read the variation of the `placement` property.<br />
   * It can be one either `-end` or `-start`.
   * @memberof modifiers
   * @inner
   */
  shift: {
    /** @prop {number} order=100 - Index used to define the order of execution */
    order: 100,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: shift
  },

  /**
   * The `offset` modifier can shift your popper on both its axis.
   *
   * It accepts the following units:
   * - `px` or unit-less, interpreted as pixels
   * - `%` or `%r`, percentage relative to the length of the reference element
   * - `%p`, percentage relative to the length of the popper element
   * - `vw`, CSS viewport width unit
   * - `vh`, CSS viewport height unit
   *
   * For length is intended the main axis relative to the placement of the popper.<br />
   * This means that if the placement is `top` or `bottom`, the length will be the
   * `width`. In case of `left` or `right`, it will be the `height`.
   *
   * You can provide a single value (as `Number` or `String`), or a pair of values
   * as `String` divided by a comma or one (or more) white spaces.<br />
   * The latter is a deprecated method because it leads to confusion and will be
   * removed in v2.<br />
   * Additionally, it accepts additions and subtractions between different units.
   * Note that multiplications and divisions aren't supported.
   *
   * Valid examples are:
   * ```
   * 10
   * '10%'
   * '10, 10'
   * '10%, 10'
   * '10 + 10%'
   * '10 - 5vh + 3%'
   * '-10px + 5vh, 5px - 6%'
   * ```
   * > **NB**: If you desire to apply offsets to your poppers in a way that may make them overlap
   * > with their reference element, unfortunately, you will have to disable the `flip` modifier.
   * > You can read more on this at this [issue](https://github.com/FezVrasta/popper.js/issues/373).
   *
   * @memberof modifiers
   * @inner
   */
  offset: {
    /** @prop {number} order=200 - Index used to define the order of execution */
    order: 200,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: offset,
    /** @prop {Number|String} offset=0
     * The offset value as described in the modifier description
     */
    offset: 0
  },

  /**
   * Modifier used to prevent the popper from being positioned outside the boundary.
   *
   * A scenario exists where the reference itself is not within the boundaries.<br />
   * We can say it has "escaped the boundaries" — or just "escaped".<br />
   * In this case we need to decide whether the popper should either:
   *
   * - detach from the reference and remain "trapped" in the boundaries, or
   * - if it should ignore the boundary and "escape with its reference"
   *
   * When `escapeWithReference` is set to`true` and reference is completely
   * outside its boundaries, the popper will overflow (or completely leave)
   * the boundaries in order to remain attached to the edge of the reference.
   *
   * @memberof modifiers
   * @inner
   */
  preventOverflow: {
    /** @prop {number} order=300 - Index used to define the order of execution */
    order: 300,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: preventOverflow,
    /**
     * @prop {Array} [priority=['left','right','top','bottom']]
     * Popper will try to prevent overflow following these priorities by default,
     * then, it could overflow on the left and on top of the `boundariesElement`
     */
    priority: ['left', 'right', 'top', 'bottom'],
    /**
     * @prop {number} padding=5
     * Amount of pixel used to define a minimum distance between the boundaries
     * and the popper. This makes sure the popper always has a little padding
     * between the edges of its container
     */
    padding: 5,
    /**
     * @prop {String|HTMLElement} boundariesElement='scrollParent'
     * Boundaries used by the modifier. Can be `scrollParent`, `window`,
     * `viewport` or any DOM element.
     */
    boundariesElement: 'scrollParent'
  },

  /**
   * Modifier used to make sure the reference and its popper stay near each other
   * without leaving any gap between the two. Especially useful when the arrow is
   * enabled and you want to ensure that it points to its reference element.
   * It cares only about the first axis. You can still have poppers with margin
   * between the popper and its reference element.
   * @memberof modifiers
   * @inner
   */
  keepTogether: {
    /** @prop {number} order=400 - Index used to define the order of execution */
    order: 400,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: keepTogether
  },

  /**
   * This modifier is used to move the `arrowElement` of the popper to make
   * sure it is positioned between the reference element and its popper element.
   * It will read the outer size of the `arrowElement` node to detect how many
   * pixels of conjunction are needed.
   *
   * It has no effect if no `arrowElement` is provided.
   * @memberof modifiers
   * @inner
   */
  arrow: {
    /** @prop {number} order=500 - Index used to define the order of execution */
    order: 500,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: arrow,
    /** @prop {String|HTMLElement} element='[x-arrow]' - Selector or node used as arrow */
    element: '[x-arrow]'
  },

  /**
   * Modifier used to flip the popper's placement when it starts to overlap its
   * reference element.
   *
   * Requires the `preventOverflow` modifier before it in order to work.
   *
   * **NOTE:** this modifier will interrupt the current update cycle and will
   * restart it if it detects the need to flip the placement.
   * @memberof modifiers
   * @inner
   */
  flip: {
    /** @prop {number} order=600 - Index used to define the order of execution */
    order: 600,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: flip,
    /**
     * @prop {String|Array} behavior='flip'
     * The behavior used to change the popper's placement. It can be one of
     * `flip`, `clockwise`, `counterclockwise` or an array with a list of valid
     * placements (with optional variations)
     */
    behavior: 'flip',
    /**
     * @prop {number} padding=5
     * The popper will flip if it hits the edges of the `boundariesElement`
     */
    padding: 5,
    /**
     * @prop {String|HTMLElement} boundariesElement='viewport'
     * The element which will define the boundaries of the popper position.
     * The popper will never be placed outside of the defined boundaries
     * (except if `keepTogether` is enabled)
     */
    boundariesElement: 'viewport',
    /**
     * @prop {Boolean} flipVariations=false
     * The popper will switch placement variation between `-start` and `-end` when
     * the reference element overlaps its boundaries.
     *
     * The original placement should have a set variation.
     */
    flipVariations: false,
    /**
     * @prop {Boolean} flipVariationsByContent=false
     * The popper will switch placement variation between `-start` and `-end` when
     * the popper element overlaps its reference boundaries.
     *
     * The original placement should have a set variation.
     */
    flipVariationsByContent: false
  },

  /**
   * Modifier used to make the popper flow toward the inner of the reference element.
   * By default, when this modifier is disabled, the popper will be placed outside
   * the reference element.
   * @memberof modifiers
   * @inner
   */
  inner: {
    /** @prop {number} order=700 - Index used to define the order of execution */
    order: 700,
    /** @prop {Boolean} enabled=false - Whether the modifier is enabled or not */
    enabled: false,
    /** @prop {ModifierFn} */
    fn: inner
  },

  /**
   * Modifier used to hide the popper when its reference element is outside of the
   * popper boundaries. It will set a `x-out-of-boundaries` attribute which can
   * be used to hide with a CSS selector the popper when its reference is
   * out of boundaries.
   *
   * Requires the `preventOverflow` modifier before it in order to work.
   * @memberof modifiers
   * @inner
   */
  hide: {
    /** @prop {number} order=800 - Index used to define the order of execution */
    order: 800,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: hide
  },

  /**
   * Computes the style that will be applied to the popper element to gets
   * properly positioned.
   *
   * Note that this modifier will not touch the DOM, it just prepares the styles
   * so that `applyStyle` modifier can apply it. This separation is useful
   * in case you need to replace `applyStyle` with a custom implementation.
   *
   * This modifier has `850` as `order` value to maintain backward compatibility
   * with previous versions of Popper.js. Expect the modifiers ordering method
   * to change in future major versions of the library.
   *
   * @memberof modifiers
   * @inner
   */
  computeStyle: {
    /** @prop {number} order=850 - Index used to define the order of execution */
    order: 850,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: computeStyle,
    /**
     * @prop {Boolean} gpuAcceleration=true
     * If true, it uses the CSS 3D transformation to position the popper.
     * Otherwise, it will use the `top` and `left` properties
     */
    gpuAcceleration: true,
    /**
     * @prop {string} [x='bottom']
     * Where to anchor the X axis (`bottom` or `top`). AKA X offset origin.
     * Change this if your popper should grow in a direction different from `bottom`
     */
    x: 'bottom',
    /**
     * @prop {string} [x='left']
     * Where to anchor the Y axis (`left` or `right`). AKA Y offset origin.
     * Change this if your popper should grow in a direction different from `right`
     */
    y: 'right'
  },

  /**
   * Applies the computed styles to the popper element.
   *
   * All the DOM manipulations are limited to this modifier. This is useful in case
   * you want to integrate Popper.js inside a framework or view library and you
   * want to delegate all the DOM manipulations to it.
   *
   * Note that if you disable this modifier, you must make sure the popper element
   * has its position set to `absolute` before Popper.js can do its work!
   *
   * Just disable this modifier and define your own to achieve the desired effect.
   *
   * @memberof modifiers
   * @inner
   */
  applyStyle: {
    /** @prop {number} order=900 - Index used to define the order of execution */
    order: 900,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: applyStyle,
    /** @prop {Function} */
    onLoad: applyStyleOnLoad,
    /**
     * @deprecated since version 1.10.0, the property moved to `computeStyle` modifier
     * @prop {Boolean} gpuAcceleration=true
     * If true, it uses the CSS 3D transformation to position the popper.
     * Otherwise, it will use the `top` and `left` properties
     */
    gpuAcceleration: undefined
  }
};

/**
 * The `dataObject` is an object containing all the information used by Popper.js.
 * This object is passed to modifiers and to the `onCreate` and `onUpdate` callbacks.
 * @name dataObject
 * @property {Object} data.instance The Popper.js instance
 * @property {String} data.placement Placement applied to popper
 * @property {String} data.originalPlacement Placement originally defined on init
 * @property {Boolean} data.flipped True if popper has been flipped by flip modifier
 * @property {Boolean} data.hide True if the reference element is out of boundaries, useful to know when to hide the popper
 * @property {HTMLElement} data.arrowElement Node used as arrow by arrow modifier
 * @property {Object} data.styles Any CSS property defined here will be applied to the popper. It expects the JavaScript nomenclature (eg. `marginBottom`)
 * @property {Object} data.arrowStyles Any CSS property defined here will be applied to the popper arrow. It expects the JavaScript nomenclature (eg. `marginBottom`)
 * @property {Object} data.boundaries Offsets of the popper boundaries
 * @property {Object} data.offsets The measurements of popper, reference and arrow elements
 * @property {Object} data.offsets.popper `top`, `left`, `width`, `height` values
 * @property {Object} data.offsets.reference `top`, `left`, `width`, `height` values
 * @property {Object} data.offsets.arrow] `top` and `left` offsets, only one of them will be different from 0
 */

/**
 * Default options provided to Popper.js constructor.<br />
 * These can be overridden using the `options` argument of Popper.js.<br />
 * To override an option, simply pass an object with the same
 * structure of the `options` object, as the 3rd argument. For example:
 * ```
 * new Popper(ref, pop, {
 *   modifiers: {
 *     preventOverflow: { enabled: false }
 *   }
 * })
 * ```
 * @type {Object}
 * @static
 * @memberof Popper
 */
var Defaults = {
  /**
   * Popper's placement.
   * @prop {Popper.placements} placement='bottom'
   */
  placement: 'bottom',

  /**
   * Set this to true if you want popper to position it self in 'fixed' mode
   * @prop {Boolean} positionFixed=false
   */
  positionFixed: false,

  /**
   * Whether events (resize, scroll) are initially enabled.
   * @prop {Boolean} eventsEnabled=true
   */
  eventsEnabled: true,

  /**
   * Set to true if you want to automatically remove the popper when
   * you call the `destroy` method.
   * @prop {Boolean} removeOnDestroy=false
   */
  removeOnDestroy: false,

  /**
   * Callback called when the popper is created.<br />
   * By default, it is set to no-op.<br />
   * Access Popper.js instance with `data.instance`.
   * @prop {onCreate}
   */
  onCreate: function onCreate() {},

  /**
   * Callback called when the popper is updated. This callback is not called
   * on the initialization/creation of the popper, but only on subsequent
   * updates.<br />
   * By default, it is set to no-op.<br />
   * Access Popper.js instance with `data.instance`.
   * @prop {onUpdate}
   */
  onUpdate: function onUpdate() {},

  /**
   * List of modifiers used to modify the offsets before they are applied to the popper.
   * They provide most of the functionalities of Popper.js.
   * @prop {modifiers}
   */
  modifiers: modifiers
};

/**
 * @callback onCreate
 * @param {dataObject} data
 */

/**
 * @callback onUpdate
 * @param {dataObject} data
 */

// Utils
// Methods
var Popper = function () {
  /**
   * Creates a new Popper.js instance.
   * @class Popper
   * @param {Element|referenceObject} reference - The reference element used to position the popper
   * @param {Element} popper - The HTML / XML element used as the popper
   * @param {Object} options - Your custom options to override the ones defined in [Defaults](#defaults)
   * @return {Object} instance - The generated Popper.js instance
   */
  function Popper(reference, popper) {
    var _this = this;

    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    classCallCheck(this, Popper);

    this.scheduleUpdate = function () {
      return requestAnimationFrame(_this.update);
    };

    // make update() debounced, so that it only runs at most once-per-tick
    this.update = debounce(this.update.bind(this));

    // with {} we create a new object with the options inside it
    this.options = _extends({}, Popper.Defaults, options);

    // init state
    this.state = {
      isDestroyed: false,
      isCreated: false,
      scrollParents: []
    };

    // get reference and popper elements (allow jQuery wrappers)
    this.reference = reference && reference.jquery ? reference[0] : reference;
    this.popper = popper && popper.jquery ? popper[0] : popper;

    // Deep merge modifiers options
    this.options.modifiers = {};
    Object.keys(_extends({}, Popper.Defaults.modifiers, options.modifiers)).forEach(function (name) {
      _this.options.modifiers[name] = _extends({}, Popper.Defaults.modifiers[name] || {}, options.modifiers ? options.modifiers[name] : {});
    });

    // Refactoring modifiers' list (Object => Array)
    this.modifiers = Object.keys(this.options.modifiers).map(function (name) {
      return _extends({
        name: name
      }, _this.options.modifiers[name]);
    })
    // sort the modifiers by order
    .sort(function (a, b) {
      return a.order - b.order;
    });

    // modifiers have the ability to execute arbitrary code when Popper.js get inited
    // such code is executed in the same order of its modifier
    // they could add new properties to their options configuration
    // BE AWARE: don't add options to `options.modifiers.name` but to `modifierOptions`!
    this.modifiers.forEach(function (modifierOptions) {
      if (modifierOptions.enabled && isFunction(modifierOptions.onLoad)) {
        modifierOptions.onLoad(_this.reference, _this.popper, _this.options, modifierOptions, _this.state);
      }
    });

    // fire the first update to position the popper in the right place
    this.update();

    var eventsEnabled = this.options.eventsEnabled;
    if (eventsEnabled) {
      // setup event listeners, they will take care of update the position in specific situations
      this.enableEventListeners();
    }

    this.state.eventsEnabled = eventsEnabled;
  }

  // We can't use class properties because they don't get listed in the
  // class prototype and break stuff like Sinon stubs


  createClass(Popper, [{
    key: 'update',
    value: function update$$1() {
      return update.call(this);
    }
  }, {
    key: 'destroy',
    value: function destroy$$1() {
      return destroy.call(this);
    }
  }, {
    key: 'enableEventListeners',
    value: function enableEventListeners$$1() {
      return enableEventListeners.call(this);
    }
  }, {
    key: 'disableEventListeners',
    value: function disableEventListeners$$1() {
      return disableEventListeners.call(this);
    }

    /**
     * Schedules an update. It will run on the next UI update available.
     * @method scheduleUpdate
     * @memberof Popper
     */


    /**
     * Collection of utilities useful when writing custom modifiers.
     * Starting from version 1.7, this method is available only if you
     * include `popper-utils.js` before `popper.js`.
     *
     * **DEPRECATION**: This way to access PopperUtils is deprecated
     * and will be removed in v2! Use the PopperUtils module directly instead.
     * Due to the high instability of the methods contained in Utils, we can't
     * guarantee them to follow semver. Use them at your own risk!
     * @static
     * @private
     * @type {Object}
     * @deprecated since version 1.8
     * @member Utils
     * @memberof Popper
     */

  }]);
  return Popper;
}();

/**
 * The `referenceObject` is an object that provides an interface compatible with Popper.js
 * and lets you use it as replacement of a real DOM node.<br />
 * You can use this method to position a popper relatively to a set of coordinates
 * in case you don't have a DOM node to use as reference.
 *
 * ```
 * new Popper(referenceObject, popperNode);
 * ```
 *
 * NB: This feature isn't supported in Internet Explorer 10.
 * @name referenceObject
 * @property {Function} data.getBoundingClientRect
 * A function that returns a set of coordinates compatible with the native `getBoundingClientRect` method.
 * @property {number} data.clientWidth
 * An ES6 getter that will return the width of the virtual reference element.
 * @property {number} data.clientHeight
 * An ES6 getter that will return the height of the virtual reference element.
 */


Popper.Utils = (typeof window !== 'undefined' ? window : __webpack_require__.g).PopperUtils;
Popper.placements = placements;
Popper.Defaults = Defaults;

/* harmony default export */ const __WEBPACK_DEFAULT_EXPORT__ = (Popper);
//# sourceMappingURL=popper.js.map


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