Event preventDefault:
The event.preventDefault() method stops the default action of an element from happening. For example:
Prevent a submit button from submitting a form Prevent a link from following the URL
Event stopPropagation :
The event.stopPropagation() method stops the bubbling of an event to parent elements, preventing any parent event handlers from being executed.
-following link to get more about this event—
http://www.jquery4u.com/function-demos/index.php?function=preventdefault#
—following link to get more about this event differences—
Difference between event.preventDefault(), event.stopPropagation() and return false in jquery