This article will explain some basics about form validation and then illustrate how to validate form fields using j Query.
There are two types of validation: client side validation and server side validation.
However, if Java Script is turned on, our validation will solve any problems before the browser sees them.
In this way, client side form validation can vastly improve the user experience.Clicking on the label will move the mouse cursor to the input with the id specified in the for attribute.The name of each input (or textarea) will be passed to the server to identify the contents of the form.The only difference is that now we want to check whether the email address looks like an email address.We know that email addresses should include an @ symbol and end with a feasible domain name. Regular expressions are a programming language for parsing text.
If you haven't already, make sure that you've included the j Query library on your page: Since the name field is required, we simply need to check whether a value for the input exists.