如何动态创建JavaScript数组(JSON格式)？
如何动态创建JavaScript数组(JSON格式)？
提问于 2010-02-12 18:02:18
我正在尝试创建以下内容：
var employees = {
"accounting": [ // accounting is an array in employees.
{
"firstName": "John", // First element
"lastName": "Doe",
"age": 23
},
{
"firstName": "Mary", // Second Element
"lastName": "Smith",
"age": 32
}
] // End "accounting" array.
} // End Employees我从以下几点开始
var employees = new Array();如何继续动态创建数组(可能会用变量更改firstName )？我似乎没有得到正确的嵌套数组。
回答 4
Stack Overflow用户
回答已采纳
发布于 2010-02-12 18:09:46
我们的对象数组
var someData = [
{firstName: "Max", lastName: "Mustermann", age: 40},
{firstName: "Hagbard", lastName: "Celine", age: 44},
{firstName: "Karl", lastName: "Koch", age: 42},
];使用for...in
var employees = {
accounting: []
};
for(var i in someData) {
var item = someData[i];
employees.accounting.push({
"firstName" : item.firstName,
"lastName" : item.lastName,
"age" : item.age
});
}或者使用Array.prototype.map()，它更简洁：
var employees = {
accounting: []
};
someData.map(function(item) {
employees.accounting.push({
"firstName" : item.firstName,
"lastName" : item.lastName,
"age" : item.age
});
}Stack Overflow用户
发布于 2014-03-22 05:07:31
var accounting = [];
var employees = {};
for(var i in someData) {
var item = someData[i];
accounting.push({
"firstName" : item.firstName,
"lastName" : item.lastName,
"age" : item.age
});
}
employees.accounting = accounting;Stack Overflow用户
发布于 2017-06-25 02:19:55
var student = [];
var obj = {
'first_name': name,
'last_name': name,
'age': age,
}
student.push(obj);页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/2250953
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