JavaScript Patterns: Build Better Applications with Coding and Design Patterns: Stefanov, Stoyan: 9780596806750: Amazon.com: Books

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What's the best approach for developing an application with JavaScript? This book helps you answer that question with numerous JavaScript coding patterns and best practices. If you're an experienced developer looking to solve problems related to objects, functions, inheritance, and other language-specific categories, the abstractions and code templates in this guide are ideal―whether you're using JavaScript to write a client-side, server-side, or desktop application.

Written by JavaScript expert Stoyan Stefanov―Senior Yahoo! Technical and architect of YSlow 2.0, the web page performance optimization tool―JavaScript Patterns includes practical advice for implementing each pattern discussed, along with several hands-on examples. You'll also learn about anti-patterns: common programming approaches that cause more problems than they solve.

Explore useful habits for writing high-quality JavaScript code, such as avoiding globals, using single var declarations, and more
Learn why literal notation patterns are simpler alternatives to constructor functions
Discover different ways to define a function in JavaScript
Create objects that go beyond the basic patterns of using object literals and constructor functions
Learn the options available for code reuse and inheritance in JavaScript
Study sample JavaScript approaches to common design patterns such as Singleton, Factory, Decorator, and more
Examine patterns that apply specifically to the client-side browser environment

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About the Author

Stoyan Stefanov is a Yahoo! web developer, Zend Certified Engineer, and an author, contributor, and tech reviewer of various O'Reilly books. He speaks regularly about web development topics at conferences and on his blog at www.phpied.com. Stoyan is the creator of the smush.it image optimization tool and architect of Yahoo's performance optimization tool YSlow 2.0.

Product details

ASIN ‏ : ‎ 0596806752
Publisher ‏ : ‎ O'Reilly Media
Publication date ‏ : ‎ October 26, 2010
Edition ‏ : ‎ 1st
Language ‏ : ‎ English
Print length ‏ : ‎ 232 pages
ISBN-10 ‏ : ‎ 0593489721
ISBN-13 ‏ : ‎ 978-0596806750
Item Weight ‏ : ‎ 13.3 ounces
Dimensions ‏ : ‎ 7 x 0.6 x 9.19 inches

Best Sellers Rank: #319,235 in Books (See Top 100 in Books)
- #50 in JavaScript Programming (Books)
- #186 in Computer Programming Languages
- #693 in Programming Languages (Books)

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Stoyan Stefanov

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Stoyan Stefanov leads a double life as a musician and a technologist in Los Angeles. In technology, he has twenty years of experience at the forefront of web programming and web performance in companies including Facebook, Yahoo!, and SAP. As a thought leader and inventor, he has published about a dozen programming books and spoken at countless conferences around the world.

During his tech career, Stoyan has also played in several rock bands as a guitarist and songwriter, but it wasn't until Fall 2016 that he got serious about the art and craft of music. He started taking classes at Santa Monica College and the University of California, Los Angeles, in music theory, composition, conducting, orchestration, guitar, piano, viola, and more. Always curious, Stoyan is enchanted by anything and everything to do with music, from soldering audio gear to composing concert music, from collaborating with musicians on a song to recording, mixing, and releasing it. He has a single-item bucket list: to write orchestral music worthy of performance by the Los Angeles Philharmonic.

At the intersection of technology and music, Stoyan created and maintains onlinemusictools.com, a free website for learning and improving the musicianship and theory skills of music students and practitioners.

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Customers find this JavaScript book highly valuable for improving their depth of knowledge and consider it essential reading for serious developers. The book is well-structured, with easy-to-understand examples and clear explanations of common patterns. They appreciate its logical progression and powerful approach, though they note it's not suitable for beginners.

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Javascript knowledge Readability Clarity Exposition Pace Power Spacing

63 customers mention "Javascript knowledge"63 positive0 negative

Customers find this book highly valuable for improving their JavaScript knowledge, particularly for serious developers. One customer specifically mentions how well it explains object-oriented elements, while another notes its comprehensive coverage of common development patterns.

"...The last part of the book covers such useful things as deployment, remote scripting and loading which are all very useful...." Read more

"...JavaScript patterns makes a great transition guide for intermediate developers--the men and women who have stopped confusing jQuery-the-library with..." Read more

"...have a reason to thank Stoyan Stefanov- he did a fantastic job surveying the JavaScript landscape and mapping out key strategies for us to use in..." Read more

"...Some of the earlier chapters cover some really helpful ideas for caching and also using facade methods for backwards compatible changes to APIs...." Read more

43 customers mention "Readability"43 positive0 negative

Customers find the book highly readable and consider it a must-read for serious JavaScript developers.

"I own the kindle and paperback versions of this book. An exceptional book!..." Read more

"...The three make a nice little troika. And read them in that order: The Good Parts, Patterns, and then High Performance...." Read more

"A good read if you want to know why Javascript is a terrible language...." Read more

"...one of those books, IMO, along with Javascript: The Good Parts by Crockford and High Performance JavaScript by Zakas...." Read more

34 customers mention "Clarity"34 positive0 negative

Customers find the book clear and concise, with easy-to-understand examples and a systematic approach to the language.

"...But for the most part the code is short easily readable snippets well chosen to make his point. But this is not a code snippet resource...." Read more

"...text is accessible--easy to follow and digest--and he is careful to clearly define words and terms that might be ambiguous or commonly misunderstood..." Read more

"...Second, it clearly shows through example many of the JavaScript "gotchas" like counter-intuitive hoisting rules and issues with unexpected..." Read more

"...that Stefanov both chooses his topics and covers and organizes his material very well...." Read more

14 customers mention "Exposition"14 positive0 negative

Customers appreciate the book's clear and detailed explanations, with well-described examples throughout.

"...Stefanov is also a lucid and concise author, clearly illustrating his points about these design patterns; the text is accessible--easy to follow..." Read more

"...It excels in three main areas: First, it explains with clear examples the difference between classical..." Read more

"...and antipatterns in JavaScript with a detailed discussion and code examples...." Read more

"...is a well-thought out and executed resource that introduces and explains many common, helpful patterns that modern-day web and app developers will..." Read more

5 customers mention "Pace"5 positive0 negative

Customers appreciate the book's pace, with one noting it progresses in a very logical manner.

"...along with Javascript: The Good Parts by Crockford and High Performance JavaScript by Zakas...." Read more

"...how things work under the hood; this book will go along great with HIGH PERFORMANCE JAVASCRIPT by Nicholas C. Zakas who has Stoyan Stefanov in that..." Read more

"...It is very clean, concise and progresses in a very logical manner...." Read more

"...in real development life, but defiantly help you make good decisions in development process. Thanks lot to Author." Read more

5 customers mention "Power"5 positive0 negative

Customers find the book very powerful and useful.

"...things as deployment, remote scripting and loading which are all very useful...." Read more

"...Worked out great and I'm really happy. Buy it, it really is great and worth the money...." Read more

"...JavaScript continues to amaze me with it's simple yet powerful abilities; without this book powerful aspects of the language may have completely..." Read more

"...Great job and thank you!" Read more

10 customers mention "Spacing"0 positive10 negative

Customers have mixed opinions about the book's spacing, with several noting it is not suitable for beginners.

"...It is NOT a beginner's book and it doesnt waste whole chapters on a beginning javascript tutorial...." Read more

"This book is not for the newbie JavaScript programmer (for the complete beginner I suggest JavaScript: The Missing Manual)...." Read more

"...This book is not for beginners but if you are wanting to challenge yourself I think a beginner having a background with at least some computer..." Read more

"...This book is not for beginners to JavaScript, if you consider yourself in the intermediate to expert range I think you will find it useful...." Read more

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maddog
Six stars!!
Reviewed in the United States on March 13, 2011
Format: PaperbackVerified Purchase

I own the kindle and paperback versions of this book. An exceptional book!

This is a must have if you are serious about javascript programming. It is NOT a beginner's book and it doesnt waste whole chapters on a beginning javascript tutorial. To read this book, you should already know something about using prototypes and closures in js.

The first part of the book covers basic elements of the language such as types and declarations, for loops etc but this is a more advanced treatment. I learned something in every one of these sections. For example I had never really understood variable hoisting before.

After that the book seems to cover all the topics in Crockford's Javascript The Good parts, but with more explanation. His writing is clear and straightforward. Many software authors really dont know how to write clear English and give rambling, confusing explanations. On the other end of the scale, I found Crockford's book a bit cryptic at times. Why would you do inheritance this way?? Stefanov explains. You don't really need Crockford's book if you have this one. But JS The Good Parts is a classic.

The code examples are short and succint. This is not a cook book, nor a book with apps stretching over pages. In one chapter he does cover a complete app in some detail. But for the most part the code is short easily readable snippets well chosen to make his point. But this is not a code snippet resource. The examples he does give are written for clarity and are not optimized. Nor are they cluttered with code for dealing with special cases. You can find more sophisticated implementations of all these ideas on the web. The goal is to get the core idea.

The last part of the book covers such useful things as deployment, remote scripting and loading which are all very useful.

OReilly is currently offering a special deal where if you buy the kindle version, you can then buy the printed version for $5 !!. Which means you can get both for less than Amazon's price for the book alone. In addition, OReilly allows you to download, for free, unrestricted copies of the book in PDF & Mobi format. This deal is a no brainer. Note: OReilly's price for the ebook is much higher than Amazon's, but if you buy it from Amazon , you still get all these extras.

Cons: Doesn't cover ECMA 5 which is just coming out and includes some significant features and changes. I can't fault the author for that and the book is well worth it anyway. Doesn't discuss memory management which is a significant issue for the current version of JS with circular references causing memory leaks. This problem may go away in the new generation of browsers. Dunno. The book doesnt have a code download site. Even though this is not a cook book, I consider this a serious fault. It's nice to cut and past examples into a JS console and play with them as you read. Kindle for PC does not allow cut and paste. But in mitigation, The author's site has the code for the complete apps. I would have knocked off a star for this but in light of OReilly's generous offer and the fact that I would have rated this book 6 stars, I decided to let it go :)

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R. Friesel Jr.
applying the lessons learned from The Good Parts
Reviewed in the United States on December 6, 2010
Format: PaperbackVerified Purchase
If you're a JavaScript developer, you would be wise to have this on your bookshelf--nestled nicely between JavaScript: The Good Parts and High Performance JavaScript (Build Faster Web Application Interfaces). The three make a nice little troika.

And read them in that order: The Good Parts, Patterns, and then High Performance.

Here's why:

What Stefanov gives us with this book is effectively an overview [1] of best practices for JavaScript development, going over the benefits and gotchas of certain important language features, and translating those into design and implementation patterns. Many of these patterns are language-agnostic--and you're likely to recognize them from "The Gang of Four"--but Stefanov puts them in their JavaScript party dresses and takes them out to the ball. Wisely, Stefanov also presents these patterns in an environment/host-independent fashion, so the lessons you learn about encapsulation or inheritance or performance should be equally valid regardless of whether you're coding for the browser [2] or NodeJS or some image exporting automation for Adobe Illustrator. Stefanov is also a lucid and concise author, clearly illustrating his points about these design patterns; the text is accessible--easy to follow and digest--and he is careful to clearly define words and terms that might be ambiguous or commonly misunderstood (e.g., "function expression" vs. "function declaration" vs. "function literal").

JavaScript patterns makes a great transition guide for intermediate developers--the men and women who have stopped confusing jQuery-the-library with JavaScript-the-language--the folks who are ready to re-evaluate their approach software development with JavaScript. This is for the folks that made it through Crockford's The Good Parts knowing that they learned something but also feeling less-than-certain about how to apply that something. This is the follow-on; JavaScript Patterns is the application of those lessons. And then after you've written your clean, maintainable, scalable applications--then you make the jump to Zakas' High Performance JavaScript to tune things just a little bit further.

So you're probably wondering then: if you recommend it so highly, why only four stars?

The four stars comes mostly from two niggling points:

(1) Relative to The Good Parts and High Performance, JavaScript Patterns was not published in the order that I recommend reading them. As a consequence, since I'd read the others (and quite a few others above and beyond those two), there is quite a bit of information in there that I'd seen before. This is not a Bad Thing; sometimes it pays to see information presented again--to help it sink in or else to gain another perspective on it. And in some cases Stefanov offers an as-good-or-better explanation on certain topics/techniques as others writing in the field (e.g., his examples for memoization and currying rival Crockford's, and his explanation of the pub/sub pattern (and custom event design) is more concise than the one Zakas presents in Professional JavaScript for Web Developers). Sometimes (and I've written this before) you were just hoping for... just a little bit more.

(2) And this is super nit-picky but... The book could have taken another quick editorial pass for spelling and grammar. The one that stuck out at me was right in the intro to Chapter 6: "But it's important to keep the end goal in mind--we want to reuse cod;." Indeed.

---

1 : An in-depth overview, but an overview nonetheless.

2 : Stefanov is careful to "keep the browser out of it" and dedicates only one chapter (Chapter 8: DOM and Browser Patterns) to the subject; though everyone's favorite host environment does creep in a couple of times, in a couple of examples.

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Tanmaya
Recommended to all javascript lovers
Reviewed in India on December 27, 2018
Format: PaperbackVerified Purchase

This book explains JS patterns and basic concepts very clearly with examples. Topics are organised so wisely that it will generate interest to read the book. One of my best JS book so far. I recommend to all who has basic JS knowledge.

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Tanmaya

Recommended to all javascript lovers

Reviewed in India on December 27, 2018
This book explains JS patterns and basic concepts very clearly with examples. Topics are organised so wisely that it will generate interest to read the book. One of my best JS book so far. I recommend to all who has basic JS knowledge.

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Michael SILVESTRE
A book that all JS developers should read
Reviewed in France on January 28, 2015
Format: KindleVerified Purchase
I really appreciate that book. It simple and don't use too much reference about main JS library such jQuery. It give advice about how to with good practice. It's easy to read and have a good place on my nightstand

I recommend this book and mainly all the book of that collection.

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R. Moenchmeyer
Exzellente Lektüre
Reviewed in Germany on March 6, 2013
Format: PaperbackVerified Purchase
Ich entwickle serverseitig viel mit PHP5, u.a. für ein CMS-Framework. Javascript habe ich bisher lediglich für kleinere Applikationen/Animationen und im Zusammenhang mit Web-Formularen auf dem Browser eingesetzt. Natürlich kenne ich Flanagans einführendes Standardwerk. Und natürlich setze ich JQuery ein. Als extrem nützliches Framework überlagert und verdeckt JQuery aber die inherenten Möglichkeiten von Javascript durch eigene Strukturen und Interfaces.

Da ich nun immer mehr mit Ajax arbeite und hierfür eine Art "Miniframework" auf der Client-Seite aufbaue, habe ich begonnen, mich mehr und mehr um grundsätzliche Strukturierungs- Möglichkeiten und Patterns von Javascript zu kümmern. Dabei bin ich dann auf das Buch von S. Stefanov gestoßen. Und habe es in vielerlei Hinsicht als eine kleine Offenbarung empfunden.

Ich fand beim ersten Einstieg, dass der Autor ein ziemliches Tempo vorlegt und dass der Text sehr "dicht" geschrieben ist . Die ersten 50 Seiten sind zwar schnell überflogen. Aber das Niveau steigt dann schnell an. Kapitel 4, das versucht, dem Leser Funktionen als Objekte näher zu bringen, habe ich als ein Schlüsselkapitel empfunden. Alles, was danach kommt, fand ich erst dann in vielen Punkten spannend und lehrreich, nachdem ich Kapitel 4 nach zweimaligem Lesen ordentlich verdaut hatte. Aber so soll es sein - Mitdenken des Lesers ist zu Recht gefordert und es schadet nicht, immer mal wieder zurückzublättern.

Ich persönlich fand das Spektrum an Struktur-, Reuse- und Design-"Patterns", die der Autor beispielhaft in den Kapiteln 6 und 7 diskutiert, als relativ praxisnah, weil man die Beispiele schnell auf eigene Anforderungen übertragen kann. Hat man zudem einmal eine "Pattern"-Lektüre wie etwa das ebenfalls ausgezeichnete Buch "PHP Design Patterns" von Stefan Schmidt hinter sich gebracht, so wird man sich freuen, zu einigen der dort diskutierten Haupt-Patterns nun eine entsprechende Variante unter Javascript vorgestellt zu bekommen. Spätestens jetzt kann man sich vorstellen, Javascript auch in ganz anderen Umgebungen als einem Browser einzusetzen. Kapitel 8 zu DOM und dem browserspezifischen Einsatz von Javascript fand ich ein wenig kurz geraten. Aber das trübt den sehr guten Gesamteindruck nicht wesentlich.

Ich habe Stefanovs Buch inzwischen zum zweiten Mal gelesen. Und finde es nun exzellent. Der dichte Stil erwies sich beim erneuten Durchgang plötzlich als Vorteil. Ich finde auch, dass sich einem die didaktische Gedankenführung des Autors erst beim zweiten Lesen so richtig erschließt. Mein Respekt vor der Autor ist bei der zweiten Lektüre noch gestiegen.

Fazit: Der Autor macht es einem im ersten Anlauf sicher nicht leicht, ihm zu folgen. Aber die Anstrengung, die der Leser investieren muss, lohnt sich wirklich: Javascript hat durch das Buch für mich eine neue Bedeutung bekommen. Ich bewerte das Buch deshalb als ausgezeichnete Lektüre.

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Paul Barber
The focus is upon well designed code and good practices for writing maintainable JavaScript.
Reviewed in the United Kingdom on March 8, 2015
Format: PaperbackVerified Purchase
Avoids falling into the trap of simple 'hello world!' tutorials. Instead the focus is upon on well designed code and good practices for writing maintainable JavaScript code. If you already understand the basics of programming (even if you're completely new to JavaScript) I'd suggest skipping the simple tutorials and jumping into this, it's both easy to follow and very informative.

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Cliente Amazon
consigliatissimo
Reviewed in Italy on May 2, 2018
Format: PaperbackVerified Purchase
ottimo libro per chi inizia a programmare in javascript. mi ha aperto un mondo che non conoscevo. un must da avere tra i propri libri

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5.0 out of 5 stars Six stars!!

4.0 out of 5 stars applying the lessons learned from The Good Parts

Top reviews from other countries

5.0 out of 5 stars Recommended to all javascript lovers

Recommended to all javascript lovers

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5.0 out of 5 stars A book that all JS developers should read

5.0 out of 5 stars Exzellente Lektüre

5.0 out of 5 stars The focus is upon well designed code and good practices for writing maintainable JavaScript.

5.0 out of 5 stars consigliatissimo

Six stars!!

applying the lessons learned from The Good Parts

Recommended to all javascript lovers

A book that all JS developers should read

Exzellente Lektüre

The focus is upon well designed code and good practices for writing maintainable JavaScript.

consigliatissimo