Good luck, and congratulations to Nicholas Zakas and all the other authors on completing a fantastic new book!Įdit (): My blog has been offline more often than not for the first two days after posting this, and many people have reported that they were unable to post a comment. Make sure to include your email address in the comment form, since I'll need it to contact you if you're selected (your email address won't be used for any other purpose). Four winners will be chosen at random from the pool of unique commenters (I'll be tracking IPs), and the fifth based on the reason given for why you want a copy. If you prefer, I'd be happy to send you a copy of Regular Expressions Cookbook instead (please note which book you want in your comment). O'Reilly Media increased the offer to five books! All you need to do is comment on this post by February 24 th, and I'll pick five people to send a copy to as soon as it's released (Amazon says March 15 th). To celebrate the completion of this book, I'm giving away three copies. Strings and Regular Expressions (Steven Levithan).The chapter on strings and regular expressions provides what I think is easily the most in-depth coverage of cross-browser JavaScript regex performance currently available. This book is unique in its laser-focus on optimizing the performance of your JavaScript applications, and covers many advanced topics in the process.

In addition to the wide-ranging content by Nicholas and a chapter on string and regular expression performance by yours truly, chapters were also contributed by an awesome lineup of JavaScript performance gurus: Ross Harmes, Julien Lecomte, Stoyan Stefanov, and Matt Sweeney.

I agreed, and that book, High Performance JavaScript, is now available for preorder at Amazon and other fine book retailers. Last year, Yahoo! engineer and all-around JavaScript badass Nicholas Zakas asked if I was interested in writing a chapter for a new book on JavaScript performance that he was working on.

O'reilly javascript