Check if checkbox is NOT checked on click - jQuery

Question

I want to check if a checkbox just got unchecked, when a user clicks on it. The reason for this is because i want to do a validation when a user unchecks a checkbox. Because atl

Answer 1

The answer already posted will work. If you want to use the jQuery :not you can do this:

if ($(this).is(':not(:checked)'))

or

if ($(this).attr('checked') == false)

Answer 2

jQuery to check for checked? Really?

if(!this.checked) {

Don't use a bazooka to do a razor's job.