Do I have to clean custom properties (Expandos) on window.onunload event?

Posted by burak ozdogan on Stack Overflow See other posts from Stack Overflow or by burak ozdogan
Published on 2010-05-03T07:15:29Z Indexed on 2010/05/03 7:18 UTC
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Filed under:

memory-leaks

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dom

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expandos

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custom-properties

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JavaScript

Hi,

In one article I have seen that it may be good to clear all expandos on window.unload event to prevent memory leaks.

I cannot understand why to do this.

Isn't the browser cleaning all the DOM and its relevant resources of it once you leave the page anyway?

Thanks,

burak ozdogan

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