The example of this article describes the usage of regular search match() and replacement replace() in js. Share it with everyone for your reference. The details are as follows:
<html>
<head>
<script type="text/javascript">
//string.match(正则)：正则查找字符串，返回符合正则的字符或字符串
function t1(){
var con = document.getElementsByName('content')[0].value;//需要查找的内容
var reg = /\Bhi\B/g;//匹配中间有hi的单词。g为模式增强符，表示全局匹配
alert(con.match(reg));
}
//string.replace(正则，用什么替换)：返回被替换后的string
function t2(){
var con = document.getElementsByName('content')[0].value;//需要查找的内容
var reg = /<script.*<\/script>/;//把javascript代码替换为空
alert(con.replace(reg,''));
}
</script>
</head>
<body>
<textarea rows="5" cols="30" name="content"></textarea><br />
<button onclick="t1();">正则查找字符串match()</button><br />
<button onclick="t2();">正则查找字符串replace()</button><br />
</body>
</html>I hope this article will be helpful to everyone’s regular expression learning.
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