ES6对象的拓展

    let name = ‘小明‘ , age = 15;
    let es5 = {
        name : name,
        age : age,
    }
--------------------------------------
    let es6 = {
        name,
        age
    }
两个的结果都是：{name: "小明", age: 15}

    let es5_method = {
        hello : function(){
            console.log(‘hello‘)
        }
    }
    let es6_method = {
        hello(){
            console.log(‘hello‘)
        }
    }

    //Object.is()方法作用类似于 ===
    console.log(Object.is(‘你好‘,‘你好‘),‘你好‘===‘你好‘) // true  true
    console.log(Object.is([1,2,3],[1,2,3]),[1,2,3]===[1,2,3])// false false
    let a = { name1 : ‘小明‘},b = { name2 : ‘小强‘},c = { name2 : ‘小刚‘};
    //Object.assign()方法将参数第一个对象作为母板其余参数合并到第一个参数中 若键名重复则以最后一个值替换前面的值
    console.log(Object.assign(a,b,c)) // {name1: "小明", name2: "小刚"}
    let test = {
        name : ‘小强‘,
        age : 25,
        hobby : ‘打篮球‘
    }
    for(let [key,value] of Object.entries(test)){
        console.log([key,value])
        //(2) ["name", "小强"]   (2) ["age", 25]    (2) ["hobby", "打篮球"]
    }

const obj = {
    first : ‘第一个‘,
    second : ‘第二个‘
}
const {first,second} = obj;
//结果： first => ‘第一个‘ second => ‘第二个‘

const player = {
        nickname: ‘感情的戏∫我没演技?‘,
        master: ‘东海龙王‘,
        skill: [{
            skillName: ‘龙吟‘,
            mp: ‘100‘,
            time: 6000
        },{
            skillName: ‘龙卷雨击‘,
            mp: ‘400‘,
            time: 3000
        },{
            skillName: ‘龙腾‘,
            mp: ‘900‘,
            time: 60000
        }]
    };
    //获取player的属性值
    const { nickname } = player;
    const { master } = player;
    //skill1 => skill中的第一项josn 以此类推
    //const {skill : [skill1,skill2,skill3]} = player;

    // skillName 表示第二项的 skillName
    //因为重名了 所以第三项 skillName 用 sklName 替代
    // const { skill: [ skill1, { skillName },{ skillName: sklName } ] } = player;

const obj = {
    first : "第一项",
    second : "第二项",
    third : "第三项",
};
//将除 third 项的其他所有项组合成对象的形式赋值给other
const {third,...other} = obj;
const obj1 = {
    one : 1,
    two : 2
};
//将obj1合并到obj2中
const obj2 = {
    three : 3,
    four : 4,
    ...obj1
};

let girlfriend = {
    name: ‘小红‘,
    age: undefined,
};
//当属性值为undefined或者为定义属性时可以直接给属性赋值

let { name, age = 24, hobby = [‘学习‘] } = girlfriend;

function p(){
        return [
            {
                name : "小明",
                age : 15
            },
            {
                name : "小红",
                age : 20
            }
        ]
    }
    const [{name : name1},{name : name2}] = p()
    //结果： name1 => 小明 name2=> 小红