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High Performance JavaScript (Build Faster Web Application Interfaces) [Paperback]

Nicholas C. Zakas
3.7 out of 5 stars  See all reviews (6 customer reviews)
RRP: 22.50
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Book Description

2 April 2010 059680279X 978-0596802790 1

If you're like most developers, you rely heavily on JavaScript to build interactive and quick-responding web applications. The problem is that all of those lines of JavaScript code can slow down your apps. This book reveals techniques and strategies to help you eliminate performance bottlenecks during development. You'll learn how to improve execution time, downloading, interaction with the DOM, page life cycle, and more.

Yahoo! frontend engineer Nicholas C. Zakas and five other JavaScript experts—Ross Harmes, Julien Lecomte, Steven Levithan, Stoyan Stefanov, and Matt Sweeney—demonstrate optimal ways to load code onto a page, and offer programming tips to help your JavaScript run as efficiently and quickly as possible. You'll learn the best practices to build and deploy your files to a production environment, and tools that can help you find problems once your site goes live.

  • Identify problem code and use faster alternatives to accomplish the same task
  • Improve scripts by learning how JavaScript stores and accesses data
  • Implement JavaScript code so that it doesn't slow down interaction with the DOM
  • Use optimization techniques to improve runtime performance
  • Learn ways to ensure the UI is responsive at all times
  • Achieve faster client-server communication
  • Use a build system to minify files, and HTTP compression to deliver them to the browser

Frequently Bought Together

High Performance JavaScript (Build Faster Web Application Interfaces) + JavaScript: The Good Parts + JavaScript Patterns
Price For All Three: 40.58

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  • JavaScript: The Good Parts 13.04
  • JavaScript Patterns 13.09


Product details

  • Paperback: 242 pages
  • Publisher: Yahoo Press; 1 edition (2 April 2010)
  • Language: English
  • ISBN-10: 059680279X
  • ISBN-13: 978-0596802790
  • Product Dimensions: 23.1 x 17.5 x 1.5 cm
  • Average Customer Review: 3.7 out of 5 stars  See all reviews (6 customer reviews)
  • Amazon Bestsellers Rank: 316,186 in Books (See Top 100 in Books)
  • See Complete Table of Contents

More About the Author

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Product Description

Book Description

Build Faster Web Application Interfaces

About the Author

Nicholas C. Zakas is a Web Software Engineer who specializes in user interface design and implementation for Web applications using JavaScript, Dynamic HTML, CSS, XML, and XSLT. He is currently principal front end engineer for the Yahoo! homepage and is a contributor to the Yahoo! User Interface (YUI) library, having written the Cookie Utility, Profiler, and YUI Test.



Nicholas is the author of Professional JavaScript for Web Developers and a co-author on Professional Ajax, and has contributed to other books. He has also written several online articles for WebReference, Sitepoint, and the YUI Blog.



Nicholas regularly gives talks about Web development, JavaScript, and best practices. He has given talks at companies such as Yahoo!, LinkedIn, Google, and NASA, and conferences such as the Ajax Experience, the Rich Web Experience, and Velocity.



Through his writing and speaking, Nicholas seeks to teach others the valuable lessons he's learned while working on some of the most popular and demanding Web applications in the world.



For more information on Nicholas: http://www.nczonline.net/about/


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Customer Reviews

Most Helpful Customer Reviews
4 of 5 people found the following review helpful
4.0 out of 5 stars Once you can program in Javascript, get this! 31 Oct 2010
Format:Paperback
A short book at around 200 pages this book will give the reader a solid grounding in improving their Javascript, both in writing code and its integration with its environment. High performance Javascript isn't just about getting a program out of the door, given its interaction with elements of a web page - the DOM - and the network infrastructure, there is much more to consider.

The book builds on the basis of Steve Souders' book "High Performance Web Sites", indeed chapter one is an extension of several of the rules in that book. This book takes each aspect of the environment and shows its impact on code speed: Manipulating the DOM is time expensive so do this work away from the document then just add the resulting fragment back is one example. Each tip is backed up by figures showing the resultant speed benefits. Who would have thought that the "for ... in ..." loop was up to seven times slower than other looping constructs for example? The chapter on regular expressions is a particular eye-opener.

The book also takes in to account the differences between the various Javascript interpreters and the effects that optimisations have on each of them, some improvements in one browser may slow things down in another. Traditional programming optimisations are also covered and in this respect Javascript is little different to many other languages. The final two chapters are more concerned with factors outside the code, deployment and tools, and feel a little out of place, there is no need for the mass of screen shots in the tools chapter for instance.

I would have given this book a five but some of the code examples are annoyingly incomplete and these are not available on the supporting website. Still it is a book well worth having, highly recommended.
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4.0 out of 5 stars A great read 12 Dec 2013
Format:Paperback|Verified Purchase
This book will give a good understanding of the types of pitfalls to look out for when developing in Javascript and considering performance. I'd recommend reading it even if you're using jQuery over pure JS as the concepts this book will teach you can still be applied.

Some of the figures relating to which way is faster in a browser are slightly off now with the newer browsers so I would recommend checking them yourself on something like JSPerf when you come across them.
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5.0 out of 5 stars Great book from a JavaScript expert. 23 Nov 2013
By Mr G.
Format:Paperback|Verified Purchase
This is one of the rare books which actually has good advice on JavaScript performance and is written in clear, concise language which JavaScript programmers of all abilities can learn from. I was happy to learn techniques that I hadn't considered before.

Some people may argue that none of the methods used in the book are required now because web browser JS engines have increased in speed, but they are wrong. Understanding basic optimisation techniques and DOM bottleneck can help both mobile and desktop JavaScript performance gains.

Highly recommended.
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