1、模板字符串
let str = '这是模板字符串传值';
let className = 'test';
let html = `<html>
<head></head>
<body>
<p>天气好</p>
<div class="${className}">${str}</div>
</body>
</html>` ;
console.log(html);
2、数组的扩展
//Array.from 将伪数组，集合等转为数组
let alllis = document.querySelectorAll('li');
console.log(Array.isArray(alllis));//fasle
Array.from(alllis);//转为数组
//Array.of 将一些零散的东西转为数组
console.log(Array.of(1,2,3,4));
console.log(Array.of('张三','李四','王五'));
3、对象的扩展 在ES6中对象的key和value一样的时候只写一个就可以了
let name = 'bob';
let age = 12;
let obj = {
name,
age
};
//Object.assign() 用于多个对象合并
let obj1 = {name:'nnn'};
let obj2 = {age:22};
let obj3 = {sex:'男'};
let obj = {};
Object.assign(obj,obj1,obj2,obj3)
4、延展操作符
let str1 = "我是个loser";
let newArr = [...str1];
console.log(newArr);//输出['我','是','个','l','o','s','e','r']
