Validating fields in html
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.
You cannot rely on Java Script to avoid this security problem. You can also download this demo and check out the source as we go through this tutorial. Your brace should be after function validate Form() and after the if, and at the end of the function. Lay your code out so the opening and closing braces match up and make sense to you. By validating form responses before accepting them, we can alert users to their errors before they submit the form.We apply a little CSS to align the labels and space out the fields: The error messages should only be shown when a field has been entered incorrectly. After the form is submitted, we can reveal the error message by changing the class name with Java Script.These error message will only be displayed after the form is submitted.