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es6语法.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>es6语法</title>
</head>
<body>

</body>
<script>
    //1、 数组解构
    let [a,b,c] = [1,2,3]
    console.log(a,b,c)
    // 2、对象解构
    let user = {name:'helen',age:18}
    let {name,age} = user
    console.log(name,age)
    //3、声明对象简单写
    const name2="tom"
    const age2=18
    const person = {name2,age2}
    console.log(person)

    // 拓展运算符（...）用于取出参数对象所有可遍历属性然后拷贝到当前对象。
    // 1、拷贝对象
    let person1 = {name:"tom",age:15}
    let someone= {...person1}
    console.log(someone)
    // 2、合并对象
    let age3 = {age:15}
    let name3 = {name:"lily"}
    let someone2 = {...age3,...name3}
    console.log(someone2)
</script>
</html>