老师请检查下谢谢

来源：2-6 编程练习

咸鱼王派大星

2021-04-14 10:20:32

<!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>
        const arr = ["a",["b","c",["d"],[undefined,"g",["x"],["y"]]],"h",["l"]];
        const [,[,,[],[a=1,,[b],[]]],,[]] = arr;
        console.log(a,b);
    </script>
</body>
</html>