Oleg Mikheev looks under the hood of the Struts 2 validation mechanism and shows you how its Java, JavaScript, and Ajax support can take the pain out of Web-form validation.

Vest is a new framework-agnostic form validation library that separates the validation logic from the feature logic while using a unit testing syntax style that is similar to Mocha and Jasmine.

If you've used Google Maps, Gmail or Microsoft's Outlook Web Access, you're familiar with the power of AJAX, which gives Web applications the responsiveness users associate with desktop applications.