error_formatting.html

<!doctype html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>错误格式化</title>
    <style type="text/css">
        *{
            padding:0;
            margin:0;
        }
        .input-textarea textarea{
            width: 80%;
            height: 300px;
            display: block;
            box-sizing: content-box;
        }
        button{
            padding: 5px 10px;
            background: skyblue;
            color:#FFF;
            border: 1px deepskyblue solid;
            margin: 10px 0;
        }
    </style>
</head>
<body>
<div>
    <div class="input-textarea">
            <textarea id="raw"></textarea>
    </div>
    <button id="convert">格式化</button>
    <div class="input-textarea">
            <textarea id="formate"></textarea>
    </div>
    <script type="text/javascript">
        var button = document.querySelector("#convert")
        button.addEventListener("click",function(){
            const rawText = document.querySelector("#raw").value;
            const formatText = rawText.replace(/\\r/g, "\r").replace(/\\n/g, "\n").replace(/\\t/g, "\t");
            var formateNode = document.querySelector("#formate");
            if(formateNode != null){
                formateNode.value = formatText;
            }
        })
    </script>
</div>
</body>
</html>