JavaScript 数组出栈 pop

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

   <body>

      <script type = "text/javascript">
         var numbers = [1, 4, 9];

         var element = numbers.pop();
         document.write("element is : " + element );

         var element = numbers.pop();
         document.write("<br />element is : " + element );
      </script>

   </body>
</html>