Javascript code for validating form

21 Jan

To avoid this problem, you must validate form submissions using your server.This means you can use Java Script to check for, and alert the user to, credit card typos.However, to see whether a credit card has sufficient funds requires communicating with the credit card company and that can only be done using a server side programming language.In client side validation the data is validated in the browser using Java Script before submitting the data to the server.For example, suppose your user submits the form without entering a mandatory field.

If you validate the form using j Query, you can notice this and alert the user to their mistake instead of submitting the form.

Java Script form validation is a great way to help your users avoid mistakes when filling out a form Alternatively, if you want to protect your server from malicious users, then you should use server side validation because Java Script can be easily bypassed.

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