class NutritionData { final double energi; final double karbohidrat; final double protein; final double lemak; final double besi; final double vitamina; final double vitaminc; NutritionData( {required this.energi, required this.karbohidrat, required this.protein, required this.lemak, required this.besi, required this.vitamina, required this.vitaminc}); factory NutritionData.fromJson(Map json) { return NutritionData( energi: double.parse(json['kalori']), karbohidrat: double.parse(json['karbohidrat']), protein: double.parse(json['protein']), lemak: double.parse(json['lemak']), besi: double.parse(json['besi']), vitamina: double.parse(json['vitamina']), vitaminc: double.parse(json['vitaminc']), ); } }