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Checking username availability with ajax using jQuery The time when username availability is checked after the page is normaly processed is long way behind us. Google has it, Yahoo has it and many many more sites have it, ajax username availability checker. So in this tutorial we will make an ajax username availability checker powered with jQuery. What are we making here?
Introduction This article presents an example of using the jQuery validation plug-in. Background
Simple jQuery form validation
This series of posts on using jQuery with no prior knowledge comes to its fifth iteration. Today, I'm going to look more in depth at the Validation Plug-in. We'll be looking at what rules the Validation Plug-in comes with out of the box followed by an example of how to create your own rules.
I recently had a need to create a form where somebody entered their birthday and decided it would be a good idea to explore various ways of solving this. I essentially had the following requirements: Make the data entry as easy as possible Do as many validations as I could on the client side Use jQuery Date’s are always tricky for people to enter into forms and the best solution really depends on the situation. Birthdays present their own unique features:
In this tutorial you will learn how to validate form fields with jQuery and CodeIgniter. We will use jQuery to validate in client side and PHP with CodeIgniter framework to validate server side. Therefore it will be very easy to follow this tutorial if you have basic knowledge of jQuery and CodeIgniter.
« Back to the jQuery Validation Plugin page Validate forms like you've never been validating before! "But doesn't jQuery make it so very easy to write your own validation plugin?" Sure, but there still are a lot of subtleties that you have to worry about: You need a standard library of validation methods (think of emails, URLs, credit card numbers). You need to place error messages in the DOM and show and hide them when appropriate. You want to react to more than just a submit event, like keyup and blur.
« Back to Plugins/Validation validate ( [ options ] ) Validates the selected form.