ES6学习笔记：变量的解构赋值

let [x,y,z] = [1,2,3];
console.log(x,y,z); //1 2 3

//默认值
let [x=0,y=0,z] = [1];
console.log(x,y,z); //1 0 undefined

let {x,y,z} = {x:1,y:2,z:3};
console.log(x,y,z); //1 2 3

//默认值
let {x=0,y=0,z} = {x:1};
console.log(x,y,z); //1 0 undefined

//别名
let {x:a,y:b,z:c} = {x:1,y:2,z:3};
console.log(a,b,c); //1 2 3

let result = {
    "code": 0,
    "message": "登录成功",
    "data": {
        "access_token": "eyJhbGciOiJIUzI1NiJ9.eyJzdWIiOiJhZ"
    }
};
let {code,message,data} = result;
console.log(code,message); //0 登录成功

function f([x,y,z]) {
	console.log(x,y,z);
}
f([1,2,3]);

function f({x,y,z}) {
	console.log(x,y,z)
}
f({x:1,y:2,z:3});

function todo() {
  return [1,2,3];
}
let [x,y,z] = todo();

function todo() {
  return {x:1,y:2,z:3};
}
let {x,y,z} = todo();