es6笔记3_const声明常量及其特点

程序员文章站 2022-07-16 22:04:56
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    <title>Document</title>
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    <script>
        //声明常量
        const name='xxx'
        //1.一定要幅初始值。2.一般常量使用大写。3.值不能修改
        //4.块级作用域
        // {
        //     const player='uzi'
        // }
        // console.log(player)//player is not defined
        //5.对于数组和对象的元素修改，不算做对常量的修改，不会报错
        const TEAM=['uzi','mlxg','ming','letme']
        TEAM.push('meiko')
    </script>
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