用正则替换敏感词汇(摘自javascript高级编程)-优快云博客

本文介绍了一种使用JavaScript来过滤文本中敏感词汇的方法。通过正则表达式匹配并替换指定的敏感词，实现了基本的文本净化功能。该示例提供了输入框让用户自行输入文本，并即时展示过滤后的结果。

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Code
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
    <head>
        <title>Bad Words Example</title>
        <script type="text/javascript">

                function filterText(sText) {
                    var reBadWords = /badword|anotherbadword/gi;
                    return sText.replace(reBadWords, function (sMatch) {
                        return sMatch.replace(/./g, "*");
                    });
                }

                function showText() {
                    var oInput1 = document.getElementById("txt1");
                    var oInput2 = document.getElementById("txt2");
                    oInput2.value = filterText(oInput1.value);
                }
        </script>
    </head>
    <body>
        <p>Enter some text below including "badword" and "anotherbadword", and click the button<br />
        <textarea rows="10" cols="50" id="txt1"></textarea><br />
        <input type="button" value="Filter Bad Words" onclick="showText()" /></p>
        <p>Filtered Text:<br />
        <textarea rows="10" cols="50" id="txt2"></textarea></p>

    </body>
</html>

转载于:https://www.cnblogs.com/joe-yang/archive/2008/11/16/1334570.html