javascript Map 和对象使用

const user = {

  id: 1,

  username: 'admin',

  isAdmin: true

};

User1获取id值

User1.get(“id”);

遍历

For(let[key,value] of user1){

  Console.log(`${key}:${value}`);

}

map用for of遍历，对象用for  in遍历

Const user1 = new Map(Object.entries(user);

const person = {

  name: '张三',

  age: 30,

  city: '北京'

};

console.log("Object.keys(person)",Object.keys(person)); console.log("Object.values(person)",Object.values(person))

for(let key in person){

                console.log("key",key);

                console.log(person[key]);

            }

for(let[key,value] of Object.entries(person)){
                console.log("aaaaaaaa",key,value)
            }