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Web Performance Daybook Volume 2 (Inglese) Copertina flessibile – 6 lug 2012

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Descrizione prodotto

Descrizione del libro

Techniques and Tips for Optimizing Web Site Performance

L'autore

Stoyan Stefanov (http://phpied.com, @stoyanstefanov) is a Facebook engineer. Previously at Yahoo! he was the creator of the smush.it online image optimization tool and architect of YSlow 2.0. performance tool. Book author (JavaScript Patterns, Object-Oriented JavaScript), contributor (Even Faster Web Sites, High-Performance JavaScript) and speaker (Velocity, JSConf, Fronteers, Ajax Experience).

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Amazon.com: 4.0 su 5 stelle 5 recensioni
5.0 su 5 stelle Highly recommended 6 maggio 2017
Di usm - Pubblicato su Amazon.com
Formato: Copertina flessibile Acquisto verificato
So much to know about Web Performance in this book which I never came across.
Fun to read the book. Chapters are small so that makes reading a bit easier and
you can cover a lot of material in just one sitting.

Highly recommended.
5.0 su 5 stelle A must have for anyone interested in web performance. 18 novembre 2012
Di Jerry Hall - Pubblicato su Amazon.com
Formato: Copertina flessibile Acquisto verificato
There is a growing amount of attention being paid to web user experience. While websites are getting more and more sophisticated, which means more data needing to get transferred across the Internet, users are expecting that web page to fully render in 2-3 seconds! For anyone that wants to deliver a satisfying web experience to their users, this book provides a lot of concisely written tips and tricks by many of the "rock stars" of the web performance industry.
2 di 3 persone hanno trovato utile la seguente recensione
5.0 su 5 stelle A must read for WebPerf professionals 29 luglio 2012
Di Justin Dorfman - Pubblicato su Amazon.com
Formato: Copertina flessibile Acquisto verificato
FULL DISCLOSURE: I am a Steve Souders fan boy.

When I was a kid I would look up to Professional Baseball players (Mike Piazza, Daryl Strawberry, Cal Ripken jr, I can go on all day). Now at 27 I look up to these guys: Souders, Meenan, Peters, Bixby, etc. Publications like Web Performance Daybook are like MLB team managers/players/owners giving insight into how they win games, how to avoid mistakes that they made them lose and so on.

Then, once a year, the World Series (Velocity Conference) is a chance to actually interact with these all-stars after the game (their presentation). While all of these players are part of different teams (Google, Yahoo, Facebook, Twitter, Etsy, etc) they all have one goal: Make the web faster. That way the fans (end users) can enjoy the game no matter what team they are rooting for.
3 di 5 persone hanno trovato utile la seguente recensione
5.0 su 5 stelle Great Reference on Many Topics Important In Today's Modern Web Development Architectures 3 luglio 2012
Di Chris Love - Pubblicato su Amazon.com
Formato: Copertina flessibile Acquisto verificato
The book features articles covering a wide range of topics including mobile web as well as general browser performance optimization techniques. There are around 20 contributing authors with a wide range of experience. Most either work for some of the Internet's leading properties like Facebook, Google, Yahoo, AOL, etc, or are well known web optimization experts. Some of the names include Nicholas Zakas, Stoyan Stefanov, Steve Souders, Betty Tso, Nicole Sullivan, James Pearce and many others. It covers JavaScript, CSS, Mobile and even some native application development performance topics. I say it is a much have for any serious web developer to have in their library.
7 di 7 persone hanno trovato utile la seguente recensione
4.0 su 5 stelle A Wide Variety of Tips and Tools 11 agosto 2012
Di bhosmer - Pubblicato su Amazon.com
Formato: Copertina flessibile
The second volume from O'reilly Publishing wasn't what I expected it to be at all. Having not read the first book, I didn't know what it might contain. I received the book from the publisher for review and was actually pleasantly surprised by its contents.

Essentially it is a collection of blog posts regarding, well, web site performance. You might wonder at the value of a printed book that contains blog posts that are freely available from the web, and initially I did too, but after reading the book, I certainly can now find a purpose and a place for it.

Aside from the fact that you can read it anywhere without a network connection, (including below 10,000 feet on an airplane), it saves you searching and weeding through plethora of posts about website performance.

The book is structured in chapters, with each chapter containing a prominent post dealing with something that has to do with website performance. Essentially it is similar to the web in that it doesn't have a beginning or end that progresses as the pages do. Given this format, I started by randomly choosing a chapter and then reading it.

You may not be able to apply every chapter to your own work, but you certainly can glean something from each chapter.

Delightfully, some chapters were heavy on code and technical information, while others presented more theory and general ideas for increasing your we site's performance. Thankfully, there are chapters devoted to mobile and desktop performance as well as server performance too.

For instance, Chapter 17, "Response Times Affect Business", dealt with the psychological and sociological aspects of page loading times. This chapter deals with user perceptions of response time when dealing with any interface and through data demonstrates how page-load times can often lead to them leaving your site.

Chapter 3, "Why Inlining Everything is NOT the Answer", was another favorite of mine. This chapter wasn't heavy on code, but used real examples of site's to explain the concepts of reducing the number of HTTP requests and how this can affect your page's performance.

Chapter 5, "Carrier Networks", examined the conundrum of despite every effort to optimize and improve your site's performance, mobile users might still be choked by their data carrier.

Chapter 4, "The Art and Craft of the Async Snippet", dealt with asynchronous javascript and used a Facebook widget as an example to help you improve the javascript on your page.

One chapter that I initially skipped over, but was glad I went back and read was Chapter 8, "Front-end SPOF in Beijing". Initially I assumed it wouldn't apply to me at all, since I don't speak Chinese and probably won't do any development work for a Chinese client soon. However, after reading it I found it could apply to any user who isn't able to load the javascript contained on your page. This chapter would have been great to include before or after Chapter 4 since it offers a solution to this problem. China was used as an example because of the firewall in place by their government that blocks certain sites.

Chapter 9, "All About "YSlow" offered insight into yahoo's page-speed analysis tool in a general way.

A great code-heavy chapter was Chapter 11, "Pure CSS3 Images". This is a code-heavy chapter that goes into great detail and actually teaches you what the title says.

The only issue I encountered in the book were the charts and graphs in Chapter 2, "LocalStorage Read Performance". In the print version that I received, the shading for the charts made it impossible to correlate the legend provided and made the data difficult to comprehend. Other than the presentation of these charts, this chapter provided good information as to how storing information on the user's machine can affect the perceived performance of your site. It helped answer the question of "How expensive is this operation really?"

If you judge this book by its title like I did, you might be in for a pleasant surprise. I first thought it might be a book about Apache or NGINX tuning or maybe CSS or javascript aggregation, but I found it complemented these concepts well by offering small tips and tricks that you may not have considered and verifiable information that these techniques actually work. You may not use every chapter since it may not even apply to you, but you are almost guaranteed to glean something from this book. At O'reilly's prices, it certainly is worth the money spent.