JavaScript 字符串 string 替换 replace 方法（函数）

JavaScript 字符串 string 替换 replace 方法（函数）

<html>
   <head>
      <title>JavaScript String search() Method</title>
   </head>

   <body>

      <script type = "text/javascript">
         var re = /apples/gi;
         var str = "Apples are round, and apples are juicy.";

         if ( str.search(re) == -1 ) {
            document.write("Does not contain Apples" );
         }

         else {
            document.write("Contains Apples" );
         }
      </script>

   </body>
</html>