从密钥中获取价值.JavaScript

Getting value out of a key. JavaScript

本文关键字：JavaScript 获取 密钥      更新时间：2023-09-26
recipes: {
    "Cupcakes": {name: "Cupcakes", available: true, ingredients: "", directions: ""},
    "Cookies": {name: "Cookies", available: false,  ingredients: "", directions: ""},
    "Sushi": {name: "Sushi", available: true,  ingredients: "", directions: ""},
    "Apple_Pie": {name: "Apple_Pie", available: true,  ingredients: "", directions: ""}
},

如何从钥匙"寿司"中取出食材？

您可以像这样访问它：

var ingredients = recipes.Sushi.ingredients;

应该是

如果您的食谱被分配给 

var myrecipes = {recipes: {
"Cupcakes": {name: "Cupcakes", available: true, ingredients: "", directions: ""},
"Cookies": {name: "Cookies", available: false,  ingredients: "", directions: ""},
"Sushi": {name: "Sushi", available: true,  ingredients: "", directions: ""},
"Apple_Pie": {name: "Apple_Pie", available: true,  ingredients: "", directions: ""}}
},
console.log(myrecipes.recipes.Shushi);
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