js 获取控制台的错误信息

时间：2021-08-18 16:32:56

适合移动端调试的时候优化的报错使用。缺点是无法打印出多条记录，有方法的同学留言告诉我。

<!DOCTYPE html>

<html lang="en">

<head>

    <meta charset="UTF-8">

    <title>Document</title>

</head>

<body>

    <input type="button" value="View message" onclick="" />

    <script>

        onerror = function(msg, url, row,col) {

            var txt = '<div style="color: rgb(232, 232, 232); line-height: 3.2; white-space: pre; font-family: Menlo, Consolas, monospace; font-size: 13px; position: fixed; z-index: 9999; padding: 10px; left: 0px; right: 0px; top: 0px; bottom: 0px; overflow: auto; background: rgba(0, 0, 0, 0.85098);">';

            txt += '<span style="background-color:#E36049; color:#fff; padding:2px 4px; border-radius: 2px">ERROR</span> in ' + url + '\n';

            txt += ' <span style="color:#E36049;">✘</span> <u><span style="color:#6D7891;">' + msg + '</span></u>  in line ' + row + ':' + col;

            txt += '</div>';

            document.body.innerHTML = txt;

            return true;  //加上这句控制台就不会报错

    }

test();

sad();

</script>

</body>

</html>

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