Answers for "returning false from event handler onclick does not prevent default behavior, call stoppropagation() explicitly on the event to prevent default actions"

difference between e.preventdefault and e.stoppropagation and return false

return false does 3 separate things when you call it:

event.preventDefault()
//It stops the browsers default behaviour (like a href event on a link).

event.stopPropagation()
//It prevents the event from propagating (or “bubbling up”) the DOM.

Stops callback execution and returns immediately when called.