Javascript for validating registration form

You can then adapt this form to your own requirements.Let's build a simple form with a validation script.This tutorial will show you how to create a Java Script-enabled form that checks whether a user has filled in the form correctly before it's sent to the server. First we'll explain why form validation is a useful thing, and then build up a simple example form, explaining things as we go along.At the end, there's a little exercise to keep you busy too!Shows you how to write a script that ensures your form is filled in correctly before it's sent to your server.Great for "required fields" such as email addresses!If the data entered by a client was incorrect or was simply missing, the server would have to send all the data back to the client and request that the form be resubmitted with correct information.

Here in this tutorial, we make you learn how to create simple registration form with proper validation using j Query and database connectivity using PHP.

(16 printed pages) Introduction Getting Started Writing the Validation Script Connecting the Form to the Script Associating Form Fields with Custom Script Code Listing Conclusion When you create forms, providing form validation is useful to ensure that your customers enter valid and complete data.

For example, you may want to ensure that someone inserts a valid e-mail address into a text box, or perhaps you want to ensure that someone fills in certain fields.

Almost all internet users like you & me are signed up or registered in various sites. This process is little bit intelligent & guide us to provide right type of information. I think it will help the beginners a lot & others can modify/customize according to their requirement.

On submit this code will check if “first name” is filled in or left blank mistakenly.

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The following code shows the implementation of this validate() function.

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