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JavaScript JavaScript and the DOM (Retiring) Responding to User Interaction Event Bubbling and Delegation

Posted by vamosrope14
vamosrope14
14,932 Points

Is an event object always created after an event occurs on an element (mouseover, click)?

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1 Answer

Steven Parker
Steven Parker
231,271 Points
Steven Parker
Steven Parker
231,271 Points

Funny question .. similar to "if no one is around to hear a tree falling in the forest, does it make any sound?" :wink:

It would probably depend on the specific JavaScript engine. But I would suspect that in the interest of efficiency, the event mechanisms (including event object creation) are bypassed when there are no listeners to process the event.