Here are 7 useful jQuery tutorials that allows you to perform client/server validation of the form before it is submitted.

Using JQuery to validate form input

Using client side validation is good because it means that the user gets faster feedback. They don’t have to wait for the server to process everything in order to find out that they screwed something up.

Adding Form Validation to WordPress Comments using jQuery

When it comes to simpler user experience, having your form validation happen instantly on the same page is a lot cleaner than reloading pages and possibly losing some form content. In this tutorial I’ll show you how to use jQuery to do some instant checking on an example comment form.

Using Ajax to Validate Forms

Forms are such a common element on the Internet we tend to blunder through them without too much thought. However, if the web site has added a few nice touches that make the process easier, it tends to speed up the process and reduce any frustration in finding our preferred username.

jQuery Animated Error Messages & Form Validation

In today’s tutorial we are going to use jQuery animation to create more interesting and engaging form validation errors for a user registration form.

How to Validate Forms in both sides using PHP and jQuery

In this tutorial we will make use of PHP and jQuery to validate all fields in both sides: Client side: Using javascript with jQuery. Server side: Using PHP.

Form validation with jQuery from scratch

Useful tutorial that will teach you how to build a simple, yet powerful and extensible jQuery form validation plugin.

Building Real-Time Form Validation Using jQuery

Client-side validation is something every web form should have, no doubts about that. While server-side validation does its job, it certainly lacks good user experience. What is so great about client-side validation then?