let name="小明";
let skill= 'es6开发';
var obj= {name:name,skill:skill};
console.log(obj);

let name="小明";
let skill= 'es6开发';
var obj= {name,skill};
console.log(obj);

let key='skill';//假定是后台定义的key值
var obj={
  [key]:'web' //构建key值
}
console.log(obj.skill);//web

var obj={
  add:function(a,b){
    return a+b;
  }
}
console.log(obj.add(1,2)); //3

var obj1 = {name:'admin'};
var obj2 = {name:'admin'};
console.log(obj1.name === obj2.name);//true

var obj1 = {name:'admin'};
var obj2 = {name:'admin'};
console.log(Object.is(obj1.name,obj2.name))//true

console.log(+0 === -0); //true
console.log(NaN === NaN ); //false


console.log(Object.is(+0,-0)); //false
console.log(Object.is(NaN,NaN)); //true

var a={a:'a'};
var b={b:'b'};
var c={c:'c'};
let d=Object.assign(a,b,c)
console.log(d);