js 函数与类的区别

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Title</title>

</head>

<body>

</body>

<script>

    function show() {

        console.log(this)

    }

    show(); //window object

    new show(); //object

    j = {

        name:'ldq',

        age:18,

        info:function () {

            console.log(`我的名字是${name},我的年龄是${age}`)

            console.log(123)

        }

    };

    console.log(j);

    new j.info();

    function show(name,age) {

        //系统偷偷替我们做了

//        var this = new object();

        this.name = name;

        this.age = age;

        this.fun1=function () {

            console.log(`我的名字是${this.name},我的年龄是${this.age}`)

            // /系统偷偷替我们做了

//            return this

        }

    }

    obj = new show('ldq',18)

    obj.fun1()

</script>

</html>
巴特西

js 函数与类的区别

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