What is form elements in java script?

Answer 1

Use one of the event listeners to use Javascript for form fields. For e.g.

For text:

This little code would run javascript script when any change is done to the text of username. Here is another example

For Submit:

This little code would ensure data is validated on client side (provided a client script exists).

For more information on event listeners check the Related Links section

Answer 2

The form element is in HTML and it's function is to submit all requests to a given web page when the user either clicks submit or presses the ENTER button or the event onsubmit is triggered