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am 29. Dezember 2011
Offensichtlich hat dieses Buch jemand geschrieben, der sein Handwerk versteht, sehr viel Erfahrung hat und oft genug darüber reflektiert hat, wie man es gut oder noch besser machen kann.
Auf einzelne Inhalte einzugehen, würde den Rahmen deutlich sprengen. Jedenfalls bekommt man gut leserlich und verständlich einen Überblick über sehr viele Aspekte der Erstellung von Web-Applikationen, die sich hauptsächlich am Client abspielen. Für Leute, die bisher typische Webanwendungen mit PHP oder Java programmiert haben, steckt jede Menge interessanter Informationen in diesem Buch. Aber auch "alte JavaScript-Hasen" werden sich bestimmt nicht langweilen, besonders wenn sie noch keine weitreichende Erfahrung mit "echten" JavaScript Applikationen haben.
In einem Untertitel heißt es zwar: "jQuery Developers' Guide to Moving State to the Client". Ich würde das Buch aber auch den (wenigen) Leuten empfehlen, die jQuery gar nicht einsetzen. Themen wie Model-Classes, Observer-Pattern, Controller, Dependency Management, WebSockets, Testing/Debugging und Deploying sind für Nicht-jQuery-Programmierer genauso nützlich.
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am 23. August 2012
This is, overall, a very informative book about the development of modern web apps, BUT...

a) either the book had no editor, the editor didn't do his job, or doesn't understand the material. My copy is marked up with corrections (either grammatical or technical) every 2-3 pages.

b) the author often over-simplifies to the point where the simplification is no longer true. Perhaps this is due to his background being only script languages (that's my impression, based on his writing), but to someone who's well-versed in lower-level technologies (e.g. C/C++), it's often mentally painful to accept the oversimplifications for what they are (if only because the author never specifies them as over-simplifications (maybe he doesn't know it?)). One example of this is a statement like (paraphrased) "using client-side rendering instead of server-rendering will result in a snappier interface." The "will" there REALLY needs to be replaced with "might", because the actual behaviour depends on 1000 factors too far out of scope for the book to cover.

c) despite his attempts to demonstrate MVC as "the" UI solution for modern JS apps, he succeeds in demonstrating (yet again) that every MVC approach out there ends up being either (MV)C, M(VC), or (MC)V. i.e. there is no 100% separation of behaviours despite what MVC pundits repeatedly tell us (their code always proves my point)! To the author's credit, though, he does go to great lengths to show us how to separate the responsibilities and avoid common pitfalls which leads to combining of responsibilities.

d) he harps about performance repeatedly, but fails to apply the simplest, most generic optimizations of all, e.g. using '===' instead of '==' where applicable (=== is almost always faster for mis-matches and is never slower) and using ++prefix instead of postfix++ where applicable (prefix operators are as fast or faster because postfix MUST make an extra copy of the value whereas prefix might not need to (depending on engine-level implementation details)).

e) Beware of the technologies documented they rely, at least partially, on behaviours which are, according to ECMA, UNDEFINED. e.g. the ordering of properties in Objects is UNDEFINED, and yet Backbone's routing (introduced in this book) relies on a same-as-insertion ordering.

Nonetheless, the book is informative for those like me who have worked with web tech since 20 years and now want to start making the transition from "a little bit of script code" to single-page apps. Just try not to take all what he writes as gospel, because it's sometimes a bit misleading (or relies on behaviour which is unspecified per the ECMA spec).

Later on...

After having finished this book, i feel compelled to add that i probably won't buy another e-book from O'Reilly (after trusting O'Reilly implicitly since the mid 1990's) because...

a) the final 25% of the book is just the index. One full quarter.

b) amongst the last of the pages is an offer to "upgrade" the book, which includes buying DRM-free formats and access to newer editions. So... i buy an ebook which contains an embarrassing number of both technical and editorial errors (my copy has no less than 30 self-made corrections/clarifications) and then get to buy bugfixes for it for the same price as the book cost me? No, thanks.
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am 18. April 2013
You shouldn't be a complete novice to JavaScript to dive into this book. But after reading a book like "Maintainable JavaScript" or "JavaScript: The Good Parts", to get a basic understanding of what's going on, you'll be fine.

"JavaScript Web Applications" has been the perfect book for me, because it is driven by real world problems and uses real world frameworks (jQuery) in the examples. It is very well written, explains the MVC architecture really well and drives you away from writing spaghetti code JavaScript and/or jQuery. I highly recommend this book for everyone who wants to know how to architect real world JavaScript applications.
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am 7. Februar 2012
In dem Buch wird sehr anschaulich die Entwicklung eines eigenen JavaScript MVC Frameworks dargelegt. Auch viele kleine aber feine Details zu jQuery werden einem vermittelt.

Kurz um, die Fülle der Information ist unglaublich gut und das Buch ist meiner Meinung nach eine Pflichtlektüre für alle JavaScript Web Entwickler.
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am 20. Januar 2013
Nice book don't have time for more elaborate review. Others have pointed out pros and cons of this book already. Nice nice
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