When developing QlikView extensions you will probably use jQuery, too. jQuery is also used by default by the QlikView Ajax client so jQuery is available out of the box. For all QlikView Extension developers who are not working with jQuery every day these cheat sheets may help:
Online Cheat Sheet:
I like this cheat sheet most, because you are able the select the desired jQuery version and all entries are linked with the official jQuery documentation.
Direct access: http://oscarotero.com/jquery/
Offline Cheat Sheets:
This cheat sheet by Antonio Lupetti can be downloaded as PDF file and contains 8 pages of the most important jQuery functions.
Highly recommended to get a quick overview of the functionality of jQuery.
Download available on http://www.woorkup.com