老师这样对吗

来源：3-6 项目作业

咸鱼王派大星

2021-04-23 15:04:51

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        function fun1(...are){
            //方法一
            const arr1 = [...arguments]
            console.log(arr1)
            //方法二
            const arr2 = Array.from(arguments);
            console.log(arr2);
            //方法三
            const arr3 = [];
            for (let i = 0; i < arguments.length; i++) {
                arr3.push(arguments[i]);
            }
            console.log(arr3);
        };
        fun1(1,2,3,4,5);
    </script>
</body>
</html>