我有一个json
结构,如:
var abraham = {
wife:{
name:"Sarah"
},
first_born:{
name: "Isaac"
wife:"Rebekkah",
child:"Jacob"
},
现在我有一个新的"键"我想要它的价值"成为其中一个兄弟姐妹的价值。 Someyhing喜欢:
abraham_first_born_name: first_born.name, //I get Errors:
我试过了:
abraham_first_born_name: first_born.name, //Error: first_born.name undefined
abraham_daughter_in_law: first_born.wife, //Error: first_born.wife undefined
abraham_grand_child: first_born.child, ////Error: first_born.child undefined
并尝试过:
abraham_first_born_name: this.first_born.name, //Error: this.first_born.name undefined
abraham_daughter_in_law: this.first_born.wife, //Error: this.first_born.wife undefined
abraham_grand_child: this.first_born.child, ////Error: this.first_born.child undefined
最后尝试过:
abraham_first_born_name: $(this).first_born.name, //Error: $(this).first_born.name undefined
abraham_daughter_in_law: $(this).first_born.wife, //Error: $(this).first_born.wife undefined
abraham_grand_child: $(this).this.first_born.child, ////Error: $(this).first_born.child undefined
}
如何访问key
的数据,例如abraham_first_born_name
,将其指定为first_born.name
....的值...兄弟姐妹key
' s ??
请注意,在询问此任务之前,我访问了谷歌的小时数并尝试了:How to access Json key inside a json key和json sibling data以及Getting json sibling data和How to access key itself using javascript以及Accessing siblings in jquery和{ {3}}
感谢您的任何建议。
答案 0 :(得分:6)
您必须使用单独的声明:
var abraham = {
wife:{
name:"Sarah"
},
first_born:{
name: "Isaac"
wife:"Rebekkah",
child:"Jacob"
}
};
abraham.abraham_first_born_name = abraham.first_born.name;
答案 1 :(得分:1)
您可以使用Object.create
执行此操作,但这有点冗长。
var abraham = Object.create(Object.prototype, {
wife: {value: {name: "Sarah"}},
first_born: {value: {name: "Isaac"}},
abraham_first_born_name: {
get: function () {
return this.first_born.name;
}
}
});