What's the effect of adding 'return false' to a click event listener?

Question

Many times I\'ve seen links like these in HTML pages:

Click here !

Answer 1

WHAT "return false" IS REALLY DOING?

return false is actually doing three very separate things when you call it:

1. event.preventDefault();
2. event.stopPropagation();
3. Stops callback execution and returns immediately when called.

See jquery-events-stop-misusing-return-false for more information.

For example :

while clicking this link, return false will cancel the default behaviour of the browser.

Click here !