老师请检查代码

来源：2-14 编程练习

慕粉3319331

2022-12-13 14:09:08

<!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>
        var a="[1,2,3]";
        var b=45;
        var c=[6,7] ;
        var d=null ;
        var e=undefined ;
        console.log(Array.isArray(a))
        console.log(Array.isArray(b))
        console.log(Array.isArray(c))
        console.log(Array.isArray(d))
        console.log(Array.isArray(e))
    </script>
</body>
</html>

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