JavaScript 中出现 Uncaught TypeError: Cannot read property 'XXX' of null的解决思路

JavaScript 中出现 Uncaught TypeError: Cannot read property 'XXX' of null的解决思路

我代码中的情况

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

    <script>
        let button = document.getElementById("myButton");
        button.focus();
        console.log(document.activeElement === button); // true
    </script>
    <div class="bd user disabled">...</div>
    <button id="myButton">as</button>
</body>
</html>
posted @ 2021-05-14 13:38  lvhanghmm  阅读(1136)  评论(0)  编辑  收藏  举报