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JavaScript

.preventDefault();

Here is a working script that prevents default action of a clicked link. My question is why we need the "event" in the function: "function( event )"? works fine with out it - "function()".... Is there a purpose to it?

$("#imageGallery a").click(function( event ) {
  event.preventDefault();
});

1 Answer

Markus Ylisiurunen
Markus Ylisiurunen
15,034 Points

Hi!

In JavaScript when there is an active event listener on a specific event, it passes an event object to the handler function. That event object has a method called preventDefault() which prevents the default action from happening.

I hope this explanation gives you better understanding about event object.