js修改对象的key

var array = [
    {
        id:1, name:"小明" }, { id:2, name:"小红" } ];

转换为

var array = [
    {
        value:1, label:"小明" }, { value:2, label:"小红" } ];

方法一：

插入新的key与值删除旧的key与值

var array = [
    {
        id:1, name:"小明" }, { id:2, name:"小红" } ]; //旧key到新key的映射 var keyMap = { "id" : "value", "name" : "label" }; for(var i = 0;i < array.length;i++){ var obj = array[i]; for(var key in obj){ var newKey = keyMap[key]; if(newKey){ obj[newKey] = obj[key]; delete obj[key]; } } } console.log(array);

方法二：

利用数组的map方法遍历修改原数组对象

 

var result = array.map(o=>{return{value:o.id, label:o.name}}); console.log(result);