A good application strives to ensure the integrity of data before saving them to permanent storage in part by screening new and changed with validation rules.
Validation in a web application must be performed on the server … Client-side validation is no substitute for server-side validation.
Validating form input with Java Script is easy to do and can save a lot of unnecessary calls to the server as all processing is handled by the web browser.
It can prevent people from leaving fields blank, from entering too little or too much or from using invalid characters.
We expect the app to catch bone head mistakes before we submit them.This topic covers the most important aspects of the Breeze validation system.Validation is a process of judging the current state of an entity with validation rules.For an alternative approach to client-side form validation, without Java Script, check out our new article on HTML5 Form Validation which is available now in most modern browsers.When form input is important, it should always be verified using a secure server-side script.