Javascript Regexp 简明教程

JavaScript RegExp - Alphanumeric

Description

字母数字匹配自身（正则表达式）。

Example

以下示例显示了 RegExp 表达式的用法。

<html>
   <head>
      <title>JavaScript RegExp</title>
   </head>

   <body>
      <script type = "text/javascript">
		 var str = "ab1";
         var pattern = /abc/g;

         var result = str.match(pattern);
         document.write("Test 1 - returned value : " +  result);

         str = "abc";
         result = str.match(pattern);
         document.write("<br/>Test 2 - returned value : " +  result);
      </script>
   </body>
</html>

Output

Test 1 - returned value : null
Test 2 - returned value : abc