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How to validate a form using jQuery?
At first you have to make a html form like.
<html> <body> <h2>Validation of a form</h2> <form id="form" method="post" action=""> First name:<br> <input type="text" name="firstname" value="john"> <br> Last name:<br> <input type="text" name="lastname" value="Doe"> <br> Email:<br> <input type="email" name="u_email" value="johndoe@gmail.com"> <br> <br><br> <input type="submit" value="Submit"> </form> </body> </html>
Now use jQuery validation plugin to validate forms' data in easier way.
first,add jQuery library in your file.
<script src="https://cdn.jsdelivr.net/jquery.validation/1.16.0/jquery.validate.min.js"></script> then add javascript code: $(document).ready(function() { $("#form").validate(); }); </script>
Then to define rules use simple syntax.
jQuery(document).ready(function() { jQuery("#forms).validate({ rules: { firstname: 'required', lastname: 'required', u_email: { required: true, email: true,//add an email rule that will ensure the value entered is valid email id. maxlength: 255, }, } }); });
To define error messages.
messages: { firstname: 'This field is required', lastname: 'This field is required', u_email: 'Enter a valid email', },
Now finally to submit the form.
submitHandler: function(form) { form.submit(); }
Updated on: 09-Sep-2023
29K+ Views
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