Struts 2's versatile validation framework doesn't end with Java support on the server side. Find out how Struts 2 also helps you perform advanced Ajax validation with ease.

And, indeed, this asynchronous behavior is what makes JavaScript—and Ajax, for that matter—so exciting for Web developers. No longer are we stuck with the modern equivalent of old-style 3270 terminals ...

Do you need to perform an Ajax file upload with pure JavaScript? This example lays out the steps to accomplish an Ajax file upload without the need for a JavaScript library like jQuery or Dojo.