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Professional JavaScript for Web Developers (Wrox Professional Guides) (Englisch) Taschenbuch – 27. Januar 2012

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Get up to date on the latest ways to use JavaScript in web development
If you want to achieve JavaScript's full potential, it is critical to understand its nature, history, and limitations. To that end, this updated version of the bestseller by veteran author and JavaScript guru Nicholas C. Zakas covers JavaScript from its very beginning to the present-day incarnations including the DOM, Ajax, and HTML5. Zakas shows you how to extend this powerful language to meet specific needs and create dynamic user interfaces for the web that blur the line between desktop and internet. By the end of the book, you'll have a strong understanding of the significant advances in web development as they relate to JavaScript so that you can apply them to your next website.
Professional JavaScript for Web Developers:
* Offers a detailed discussion of the components that make up a JavaScript implementation
* Zeroes in on new and emerging APIs such as the Selectors API, Web Workers, and Cross-Document Messaging
* Explores object-oriented programming in JavaScript
* Shows how to implement drag and drop file upload with Ajax and the File API
* Highlights the new core language features introduced in ECMAScript5
* Explains how to work with data formats such as XML and JSON
* Looks at what's coming in ECMAScript Harmony
* Walks you through creating offline-capable web applications
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Wrox Professional guides are written by working developers to address everyday needs. They provide examples, practical solutions, and expert education in new technologies, all designed to help programmers do a better job.

Über den Autor und weitere Mitwirkende

Nicholas C. Zakas is a front-end architect who honed his skills working at Yahoo! for five years. He has worked in web development for over a decade, developing web solutions for some of the largest companies in the world. He is the author of previous editions of Professional JavaScript for Web Developers and a coauthor of Professional Ajax.


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Format: Taschenbuch
Javascript ist eine sehr interessante Sprache: Prototypenbasiertes Objektsystem. Jeder Computer- und Smartphonebesitzer hat eine Laufzeitumgebung installiert. Performance übertrifft alle anderen Skriptsprachen. Es gibt viel mehr Entwickler und viel mehr Bibliotheken / Frameworks als für jede andere Skriptsprache. So jedenfalls mein Eindruck.

Mit node.js und nw.js kann Javascript jetzt auch Server-Anwendungen, Kommandozeilentools (klassische Skripte) und Desktop-Anwendungen. Und mit SWIG kann man seine C++-Anwendung mit Javascript erweitern. Also höchste Zeit, das mal zu lernen.

Das habe ich mit diesem Buch versucht und werde es jetzt abbrechen. Was für ein Herumgeeiere!

Ich bekomme den Eindruck, dass Javascript die einzige Sprache ist, die der Autor kennt (Trotz vieler Verweise auf "andere Sprachen"), die Interna einer Javascript-Implementierung nicht einmal Ansatzweise versteht und sich dazu abstruse Erklärungsmodelle zurechtgelegt hat, die er jetzt den Lesern vermitteln möchte (seine Einteilung in by value vs by reference).

Ich muss jetzt mit diesem Buch aufhören nachdem mir der Autor gerade erklärt hat, Javascript hätte dynamic scoping und ich daraufhin schon entsetzt Javascript aufgeben wollte - das wäre mir zu kompliziert. In Wirklichkeit ist es wieder nur sein krudes Verständnis der Dinge. Javascript hat im wesentlichen lexical scoping.
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Format: Taschenbuch Verifizierter Kauf
Good book from an experienced author from Yahoo. Glad to have it now on my shelf with JavaScript literature books.
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Die hilfreichsten Kundenrezensionen auf Amazon.com (beta)

Amazon.com: 4.4 von 5 Sternen 102 Rezensionen
114 von 121 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen Coming from a real language? This book is your best bet. 3. November 2012
Von Kevin Stokes - Veröffentlicht auf Amazon.com
Format: Kindle Edition Verifizierter Kauf
There is a line from Lion King where little Simba comments on his Uncle Scar's weirdness. Scar replies "You have no idea."

The main point of this review is that Javascript is a really weird contraption, and that this book points this out in a way that is very helpful for programmers coming from more traditional compiled programming languages.

I have programmed in C, C++, Java, C# for many years. I have read other books on Javascript which tried to teach by examples. With normal programming languages, this works fine. However, within a few hours with this book I realized that to understand Javascript, you must give up on some basic expectations you may have as a code developer. This was a surprise to me, but crucial to be able to learn Javascript well enough to work on non-trivial projects with existing code.

Javascript is simply bizarre. There are many different ways to implement object-oriented patterns which all use different-looking code, and have subtle differences, making it so easy to get bitten by unintended consequences. From this book I learned that there is no one solid way to implement the basic pattern of your code, you must make a choice.

If you try to read a Javascript book which teaches by examples, you will be in trouble when you actually start to modify someone else's Javascript code which used a different pattern. This book doesn't just show trivial examples, it methodically goes through how it works in enough detail so you can understand how it is working under the hood.

Also, the text has plenty of warnings about buggy implementations and common pitfalls. After you get about 1/4 of the way through it you will be wondering how any Javascript code runs on Internet Explorer at all, since about every other page is another 'this-is-broken-in-IE' warning boxes.

The text is written in a very clear style, never glossing over anything. It isn't at all cute or made to be entertaining, just kind of down to business.

There is no question I will be using this book nearly every time I have to work on Javascript code.

If you are just looking to make a little mouse button handler in a web page, this is probably not the book for you. It does not jump right into little useful examples.

If you are coming from a programming background in traditional compiled languages, and you want to know more about Javascript than little tiny scripts, IMHO this book is absolutely necessary. You will never regret purchasing it.
4.0 von 5 Sternen Overall useful for experienced developers of any language 22. August 2016
Von Mike - Veröffentlicht auf Amazon.com
Format: Taschenbuch Verifizierter Kauf
Overall useful for experienced developers of any language. That is to say, if you are a beginner programmer, I would find another book (and language quite frankly). As far as the good, this book seems to cover everything that deals with JavaScript and the browser without bringing in frameworks and libraries. The reason I rate this 4 instead of 5 is because it's organized a bit strange. For example, the author spends a lot of time talking about what variables are, the different types of variables (primitive values and references), and how they are copied. The thing is that there aren't any surprises here, and he could have explained this in about half the space. Additionally, he talks a lot about how scope, variables, and execution context pertain to objects prior to ever explaining what objects are. He then calls out with and try/catch. Then he only explains with, but the example cannot be executed yet because with is a way to assign execution context to a single object. He doesn't explain try/catch for JavaScript at all. Moreover, if you read JavaScript: The Good Parts by Crockford, he explains why with is actually quite ambiguous and will silently create undefined global variables if you attempt to access undefined properties. No mention of this in Professional JavaScript

This is all just to get to this point: There is a lot of good information here. However, the information isn't well organized, and I am not sure who the audience is. Some of the information is also incomplete. If you're an experienced programmer learning JavaScript this is a fine starting point. There are other starting points to consider too. For my tastes, I would prefer something that is better organized and went more indepth into the language features and spent less time explaining standard concepts in OO languages. Or do so and market the book as a beginner's book.
45 von 49 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen Long but so is the topic 19. März 2012
Von J Rosoman - Veröffentlicht auf Amazon.com
Format: Taschenbuch
I usually get turned of by books this big as I assume they are badly edited. However, before this I read many books on JavaScript and while I learnt a lot from each one I never quite got my head around the more complicated parts of the language such as inheritance until reading this book. Zaka's just explains everything really well, though don't interpret that as meaning at length, I think his chapters are more the natural length of the topics they describe. Not condensed down to 'seem' friendly as in "The Good Parts".
This is the book which finally got me comfortable with the core language, though it also taught me a lot which I didn't expect to be taught or hadn't even heard of such as document fragments and many aspects of the browser API's. So while this book could have been a lot shorter by removing a lot of the stuff most people won't care about, I am glad the author kept them in as I found them interesting. Actually I wish the book was longer. And besides its well enough organised that you could simply skip to 'the good parts' and still end up with a better book than its restricted cousins.
5.0 von 5 Sternen JavaScript book 18. Juli 2016
Von Amazon Customer - Veröffentlicht auf Amazon.com
Format: Taschenbuch Verifizierter Kauf
Great book.
29 von 31 Kunden fanden die folgende Rezension hilfreich
5.0 von 5 Sternen User friendly 20. März 2012
Von Francois Piat - Veröffentlicht auf Amazon.com
Format: Taschenbuch Verifizierter Kauf
If you have already read the previous edition of this book, the reading of this third edition will bring you a lot of new stuffs. This book is not only a complete rewriting, but also a more deep explanation and a detailed presentation of HTML5 apis.
For me, "JavaScript for Web Developpers" is really really more user friendly than "Javascript, the definitive guide". Code samples are easy to understand (and don't spread across 3 or 4 pages). The style is simple and the writing is easily understood by a "non english native" like me.
The only thing I would change if I could is stripping out the 50 pages on XML and replacing them by more of advanced techniques.
Definitly a must-have.
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