ES6 新特性2

ES6新特性2-学习

1，解析数组

function about() {
return[“��”,”��”,”��”];

}
let [apple,ji,origin]=about();
console.log(apple,ji,origin);

2，解析对象

function demo() {
return{apple1:”��”,banana:”��”,tea:”��”};

}
let {apple1:apple1,banana:banana,tea:tea}=demo();
console.log(apple1,banana,tea);

3 模板字符串

let bianliang = 1111;
console.log(输出的会是 ${bianliang});//注明必须否则没法玩下去
// console.log('输出的会是 ${bianliang}');
let m1='��',n="��";
let x1='200';
console.log(======= ${x1}`);

4， 默认参数

//默认参数
function add(name=”fdy”,age=18) {
return ${name} ${age};

};

var sdff =add(“haihang”,15);
var tt=add();//当不设置时为默认参数
console.log(“—–”+tt);