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This is the repo for an in-progress book I'm writing called 'Learning JavaScript Design Patterns' - due out to purchase via O'Reilly Media in Summer 2012.

Design patterns are reusable solutions to commonly occurring problems in software development and are a very useful tool to have at your disposal. You can read the latest version online at any time.

Version 1.5.2 of the book is currently over 150 A4 pages in length and 1.0 was downloaded approximately 260,000 times during 2011. Additional formats of the book are available in the 'formats' directory.

For readers interested in purchasing the book, this can be done from the O'Reilly website.

Why is this book needed?

I wanted to write this book as I felt that patterns were an area a lot of new and intermediate JavaScript developers may not have had a chance to explore just yet and I'm hopeful my book will encourage you to check them out as they can be quite powerful.


If you would like to help improve the book, please feel free to fork this project. All changes should be made against the 1.5.2 branch (master is currently 1.5.1). The source of the book is currently in book/index.html and all other formats are re-generated every week or two (until I convert the project to markdown or DocBook).


There are a lot of requests to translate this project into other languages. Please note that as O'Reilly have set standards for the translation of their book projects, if you wish to help with translation, we (at the moment) require that you contact us to get involved with this effort.


This book is released under a Creative Commons Attribution-Noncommercial- No Derivative Works 3.0 United States License. What this means it that the project is free to read and use, but the license does not permit commercial use of the material (i.e you can freely print out the book for your own use, but you can't sell it). I'm trying to best to publish all of my books in a free + purchased (if you would like to support these projects) form so I would greatly appreciate it if you would respect these terms.

Copyright Addy Osmani, 2011-2012.

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