1.js动态的往json数据添加新属性和值 2.JSON 和 JS 对象互转 3.对象转化为数组

var datas = ’{"id":1,"name":”张三“."sex":”男“},{"id":2,"name":”李四“."sex":”男“},{"id":3,"name":"王五"."sex":"女"}‘;

for(var i=0; i<datas.length;i++){

    datas[i].phone="10086";

}

console.log(datas);

'{"id":1,"name":"张三"."sex":"男","phone":"10086"},{"id":2,"name":"李四"."sex":"男","phone":"10086"},{"id":3,"name":"王五"."sex":女,"phone":"10086"}'

 

 
        var  
        json = JSON.stringify({a:  
        'Hello' 
        , b:  
        'World' 
        });  
        //结果是 '{"a": "Hello", "b": "World"}' 
 

 
        var  
        obj = JSON.parse( 
        '{"a": "Hello", "b": "World"}' 
        );  
        //结果是 {a: 'Hello', b: 'World'} 

//直接定义一个函数，调用转对象即可
function transform(obj){
var arr = [];
for(var item in obj){
arr.push(obj[item]);
}
}