In the previous pages we have discussed how to check for non-empty, check for all letters, check for all numbers, check for decimal numbers, check for letters and numbers, check string length and email validation using JavaScript.

Javascript function to check a date in dd/mm/yyyy format.

Javascript function to determine the length of the value of a particular field in a HTML form.

Javascript function to check if a field in a html form is empty or not.

This tutorial will show you how to create a JavaScript-enabled form that checks whether a user has filled in the form correctly before it's sent to the server.

The onsubmit event handler of a form object executes some JavaScript code or function when a form is submitted.

The onreset event handler of a form object executes some JavaScript code or function when a form is reset.

The form property of the textarea object is used to access to the textarea s parent form object.

The form property of the text object is used to access to the text s parent form object.

The form property of the submit button object is used to access the button parent form object.