Why Element.Storage?

[Eric J. Van der Velden]

Hello,

The function Element.observe first lets _createResponder create a
responder. Then it calls
element.addEventListener(actualEventName,responder,false)

This seems enough. Why stores _createResponder the responder in
Element.Storage (behind a index connected with element)?

[Victor]

Hi!

If you like to browse source code, then you can answer by yourself. Just search for prototype_event_registry in sources.

[Eric J. Van der Velden]

Hello Victor,

I already did. But I don't know the answer.

Thanks,

Eric J.

[Victor]

OK, it is used in stopObserving to clean observers, mainly for IE (look at function _destroyCache) to prevent memory leaks.