How does jQuery stores data with .data()?

Posted by TK on Stack Overflow See other posts from Stack Overflow or by TK
Published on 2010-03-15T09:33:41Z Indexed on 2010/03/15 9:49 UTC
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JavaScript

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data

I am a little confused how jQuery stores data with .data() functions.

Is this something called expando? Or is this using HTML5 Web Storage although I think this is very unlikely?

The documentation says:

The .data() method allows us to attach data of any type to DOM elements in a way that is safe from circular references and therefore from memory leaks.

As I read about expando, it seems to have a rick of memory leak. Unfortunately my skills are not enough to read and understand jQuery code itself, but I want to know how jQuery stores such data by using data().

http://api.jquery.com/data/

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