JS中key-value存取

獲取Key

在代碼中,遇到須要單獨提取對象的key值時
可以使用 Object.keys(object) object是你須要操做的對象
Object.keys()會返回一個存儲對象中全部key值的數組
獲取當前對象每一個key對應的值使用 object[key]

 

參考：https://www.cnblogs.com/zhichong/p/9930309.html

=================================================================

JS中key-value存取

咱們來使用實際的代碼測試看看結果

var mArr = ['a','b','c'];
var mObj = {};
mObj['key1'] = 1;
mObj['key2@'] = 2;
 
//遍歷mObj
for(var pro in mObj){
    if(mObj.hasOwnProperty(pro)){
        console.log('key is ' + pro +' and value is' + mObj[pro]);
    }
}

console.log(Object.keys(mArr));//結果：(3) ["0", "1", "2"]
console.log(Object.keys(mObj));//結果：(2) ["key1", "key2@"]
console.log(mArr[1]);//結果：b
console.log(mObj['key2@']);//結果：2.

 

 

出處：https://blog.csdn.net/zh854663752/article/details/80839402

=================================================================

var peopleArray=[]
var peopleobj={jiangyx: "姜豔霞", yeluosen: "葉落森"}
for(let i in peopleobj){
debugger
var obj={
nickname:i,
realName:peopleobj[i]
}
peopleArray.push(obj)
}
console.log(peopleArray)

 

 

出處：https://www.cnblogs.com/web-chuanfa/p/10719052.html