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.

Many developers see it as a toy scripting language with a C-like syntax, relegated for use in building simple Web-page embellishments or setting up Web-form validation.