JavaScript 中使用replace达到 replaceAll的效果 -- 风信Java论坛 -- Powered by JavaWind.Net

js不提供replaceAll方法，要用正规表达式实现。

运行复制保存 xhtml代码

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title> new document </title>
<meta name="generator" content="editplus" />
<meta name="author" content="" />
<meta name="keywords" content="" />
<meta name="description" content="" />
</head>
<body>
<script type="text/javascript">
<!--
alert("aSDFaSDF".replace("a","A"));
alert("127.0.0.1".replace("\.",""));
String.prototype.replaceAll = function(s1,s2){
return this.replace(new RegExp(s1,"gm"),s2);//g=global, m=multiLine
}
alert("aSDFaSDF".replaceAll("a","A"));
alert("127.0.0.1".replaceAll("\\.",""));
//或者
alert("aSDFaSDF".replace(/a/g,"A"));
alert("127.0.0.1".replace(/\./g,""));
//-->
</script>
</body>
</html>