本文实例讲述了JavaScript实现自动对页面上敏感词进行屏蔽的方法。分享给大家供大家参考。具体如下：
<html>
<head>
<title>Bad Words Example</title>
<script type="text/javascript">
function filterText(sText) {
var reBadWords = /badword|anotherbadword/gi;
return sText.replace(reBadWords, "****");
}
function showText() {
var oInput1 = document.getElementById("txt1");
var oInput2 = document.getElementById("txt2");
oInput2.value = filterText(oInput1.value);
}
</script>
</head>
<body>
<P>
<textarea rows="10" cols="50" id="txt1">badword anotherbadword</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>
希望本文所述对大家的javascript程序设计有所帮助。