SOURCE

//获取对象key,value
var obj = {'id':1,'name':'王大锤'};
for(var key in obj){
    //key
    console.log(key)    // id,name
    //value
    console.log(obj[key]) //1,王大锤
}
//获取对象key,value
var obj = {'id':1,'name':'王大锤'};
for(var key of obj){
    //key
    console.log(key)    // id,name
    //value
    console.log(obj[key]) //1,王大锤
}
var obj = {'id':1,'name':'王大锤'};
console.log(Object.keys(obj));