JavaScript 数组连接 concat 方法

<html>
   <head>
      <title>JavaScript Array concat Method</title>
   </head>

   <body>

      <script type = "text/javascript">
         var alpha = ["a", "b", "c"];
         var numeric = [1, 2, 3];

         var alphaNumeric = alpha.concat(numeric);
         document.write("alphaNumeric : " + alphaNumeric );
      </script>

   </body>
</html>