js正規表現Regex
1586 ワード
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<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(/^\d$/g.test( 'd11'));
function ReplaceDemo(){
var r, re; // 。
var ss = "The rain in Spain falls mainly in the plain.";
re = /(\S+)(\s+)(\S+)/g; // 。
r = ss.replace(re, "$3$2$1"); // 。
return(r); // 。
}
//alert(ReplaceDemo());
//alert('s abc dfdf'.replace(/\s*/g,''));
function RegExpTest(){
var ver = Number(ScriptEngineMajorVersion() + "." + ScriptEngineMinorVersion())
if (ver >= 5.5){ // JScript 。
var src = "The rain in Spain falls mainly in the plain.";
var re = /\w+/g; // 。
var arr;
while ((arr = re.exec(src)) != null)
document.write(arr.index + "-" + arr.lastIndex + "\t" + arr);
}
else{
alert(" JScript ");
}
}
RegExpTest();
//-->
</script>
</body>
</html>