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Beginning JavaScript with DOM Scripting and Ajax: From Novice to Professional (Beginning: From Novice to Professional) (Englisch) Taschenbuch – 2. Juni 2010

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JavaScript is one of the most important technologies on the web. It provides the means to add dynamic functionality to your web pages and serves as the backbone of Ajax-style web development. Beginning JavaScript with DOM Scripting and Ajax is an essential guide for modern JavaScript programming; it's practical but comprehensive. It covers everything you need to know to get up to speed with JavaScript development to add dynamic enhancements to web pages and program Ajax-style applications. Experienced web developer Christian Heilmann begins gently by giving you an overview of JavaScript--its syntax, good coding practices, and the principles of DOM scripting. Then he builds up your JavaScript toolkit, covering dynamically manipulating markup, changing page styling on the fly using the CSS DOM, validating forms, dealing with images, and much more. Then he takes you to advanced territory, with a complete case study illustrating how many new JavaScript techniques can work together, plus a great introduction to Ajax development.

Über den Autor und weitere Mitwirkende

Christian Heilmann grew up in Germany and, after a year working with people with disabilities through the Red Cross, he spent a year as a radio producer. Beginning in 1997, he worked for several agencies in Munich as a web developer. In 2000, he moved to the U.S. to work for eToys and, after the dot-com crash, he moved to the U.K., where he currently works as a lead developer for Agilisys. He publishes an almost-daily blog at http://wait-till-i.com and runs an article repository at http://icant.co.uk. He is a member of the Web Standards Project's DOM Scripting Task Force.

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Von Ulli am 20. November 2009
Format: Taschenbuch
Einerseits:
...hat das Buch einige sehr gute Beispiele, die ich so (ausgeführt) noch in keinem anderen Buch gefunden habe. Hier wird nämlich alles, und das ist ein wahrer Segen, wenn man es mit Javascript ernstnimmt, OO-programmiert. Es gibt vermutlich bessere Bücher über Javascript OOP, aber dieses hier wendet alles gleich in einem praktischen Beispiel an, was, wenn man zu den Leuten gehört, die beim Kopieren anderer Leute Code am besten lernen, genau richtig ist. Und schließlich gibt es zum Buch dazu (oder hinterher auch im Internet runterzuladen) eine ganze Hilfsbibliothek des Autor, ähnlich wie Prototype, wenn auch nicht so groß oder ausgefeilt. Aber es ist ein guter Start für alle, die gleich einmal was anderes als "Hallo Welt" programmieren wollen.

Andererseits:
... ist dies wirklich kein Einsteigerbuch. Ja, es gibt zwei drei Einstiegskapitel übers Programmieren, aber die kann man sich, so seltsam und unverständlich wie sie sind, als Anfänger wirklich schenken. Und Fortgeschritte natürlich erst recht. Weiters ist der Code der Beispiele nur sehr oberflächlich erklärt. Wie gesagt, der Autor stellt eine ganze Hilfsbibliothek zur Verfügung, auf der dann alles Folgende auch sofort aufbaut - hergeleitet oder erklärt wird sie aber nicht. (Oder nur ein winziger Teil davon.) Die Beispiele nur leicht zu adaptieren kostet also einige Zeit und Nerven (zumal man zu diesem Zeitpunkt ja eigentlich noch nicht wirklich weiß, was man tut.)
Es ist aber wiederum auch kein wirkliches Fortgeschrittenenbuch - dafür sind die Beispiele dann doch zu allerweltsmäßig.

Ich habe mich über dieses Zwischen-drin-Buch - und vor allem seine Beispiele - gefreut. Es war aber nicht die leichteste und auch nicht die schnellste Kost, eher eine gute Ergänzung zu anderen, einführerenden Javascript-Büchern.
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Amazon.com: 19 Rezensionen
44 von 46 Kunden fanden die folgende Rezension hilfreich
A different style than most JavaScript tutorial books... 24. August 2006
Von Thomas Duff - Veröffentlicht auf Amazon.com
Format: Taschenbuch
This JavaScript tutorial is a bit different than most I've had the opportunity to review over the years... Beginning JavaScript with DOM Scripting and Ajax: From Novice to Professional by Christian Heilmann. It will probably play well to the serious developers who want to come at JavaScript from an object-oriented background...

Contents: Getting Started with JavaScript; Data and Decisions; From DHTML to DOM Scripting; HTML and JavaScript; Presentation and Behavior (CSS and Event Handling); Common Uses of JavaScript: Images and Windows; JavaScript and User Interaction: Navigation and Forms; Back-End Interaction with Ajax; Data Validation Techniques; Modern JavaScript Case Study: A Dynamic Gallery; Using Third-Party JavaScript; Debugging JavaScript; Index

Most JavaScript books that try and teach the language usually do the "Hello World" approach, have you put a date on the web page, etc. All OK stuff, but pretty common fare. Heilmann seems to treat JavaScript as a legitimate coding language, with plenty of power and features to allow you to code solutions based on current accepted techniques. For instance, he dives into DOM manipulation pretty early, so you end up seeing quite a bit of material using document.getElementsBy statements. In most JavaScript books, that's either relegated to the later chapters, or skipped altogether. Breaking up the learning by presentation and behavior also helps those who are more in tune with MVC-style design. JavaScript *can* be built in such a way that it's maintainable and segmented, and Heilmann does a very nice job in teaching that style. I also really liked the chapter on debugging, as that's one of those things that I find extremely frustrating about JavaScript. He presents some great options that top my normal "scan the code and see if anything looks wrong" method of finding JavaScript errors...

My only "quibble" with the book is that I don't think I'd recommend it for the pure novice. Perhaps a novice JavaScript developer with solid development skills in other areas... I think a pure novice to coding in general AND JavaScript in particular would quickly get lost here...

Definitely a good read if you have the basics down, and it will likely improve your JavaScript skills and coding techniques...
22 von 24 Kunden fanden die folgende Rezension hilfreich
Emphasize "beginner"; "professional" part is false 12. September 2007
Von Stephen R. Laniel - Veröffentlicht auf Amazon.com
Format: Taschenbuch
Just be aware of what you're getting into when you buy this book. It is *for beginners*, not for experienced developers. It spends the first 90 pages covering for- and while-loops, if-tests, and the rest of the machinery that you already know if you're an experienced programmer. It is the fate of most computer books, I'm afraid, that they either address rank beginners or professional software developers, with few addressing those in the middle.

After every chapter, I had to take a second to recapitulate what I had just learned into the terminology that I'm aware of from my experience with other languages. One large section, for instance, is devoted to namespace-collision issues -- but the word "namespare" appears nowhere in the index. If you need a book that will jumpstart to "Here's how you solve the namespace-collision problem in JavaScript," this book is not for you.

I had lots of specific questions, having just come to JavaScript. How do I set up a callback *chain*, for instance, on something like the window.onload event? This book is not at that level. It will be unable to answer that question for you. It spends so much time on beginners that it doesn't have enough time to help with best practices or common, cookbook-type programming problems.

And yet it does seem confused about exactly who its audience is. Right after a chapter on basic flow control, Heilmann tosses off "XSLT" as though he expects his readers to know what that is. I submit that those who needed the first chapter will not need the XSLT bit, and conversely.

So just be aware what you're getting into. I'm actually not blaming Heilmann, though I do blame whoever gave the book its title; it's much more about novices than professionals. If you look on the back of this book, you'll see the flow chart that Apress recommends: start with Heilmann's book, and progress into "Pro JavaScript Techniques" and "Pro CSS Techniques." "Pro Javascript" will be my next step.
20 von 22 Kunden fanden die folgende Rezension hilfreich
Poorly organized, sloppy examples, and HEAVY emphasis on accessibility standards compliance 3. November 2006
Von David Morton - Veröffentlicht auf Amazon.com
Format: Taschenbuch
I've had very positive experiences with Apress in the past, but I was really disappointed with this book....and it sounds like some of the other reviewers share my frustrations.

The example programs are sloppy and have errors (yes, the versions posted online work, but it's a massive pain in the a$$ to stare at the book for twenty minutes only to realize that there's an error in line x and line y doesn't even need to be there...and it's a bit unfair to expect the reader to know when to stop staring at the book and check the online version to see if it looks any different). Additionally, the author frequently dumps large amounts of code on the reader and instructs them to ignore parts (or to "ignore everything except for"). It happends over and over, and it gets annoying.

Also, from the beginning of the book, there is a heavy emphasis on web accessibility standards. Ensuring that your site can be accessed by visually impaired or otherwise disabled users is fine and great, but the examples get bloated because of it and, imho, it really gets in the way of learning the basic concepts.

If you want to learn Javascript and DOM, I'd recommend that you go to the Mozilla online docs for Javascript and DOM. The documentation and examples there are first rate. If, after learning Javascript and DOM, you want some recipes that *might* be helpful in ensuring compliance with accessibility standards, this book may be for you.
10 von 11 Kunden fanden die folgende Rezension hilfreich
What a pleasant surprise! 14. September 2006
Von Cody Lindley - Veröffentlicht auf Amazon.com
Format: Taschenbuch
What a pleasant surprise, amongst a development landscape full of JavaScript libraries to actually find: Beginning JavaScript with DOM Scripting and Ajax by Christian Heilmann. To state it boldly, this is the JavaScript book we have all been waiting for (though, John Resig and Jonathan Snook both have books coming). Why? Because the author actually uses modern object oriented (Object Literal) coding principles in the books examples. As well, the book has a progressive enhancement mindset, and explains the difference between several implementations of the same functionality, based on accessibility. All of this is done without the use of a JavaScript library! However, in a way the author provides his own little library of helper functions, which is certainly more digestible than Prototype, Dojo, YUI or jQuery. The author even dedicates the last chapter to third-party examples, which demonstrates the usage of the YUI and jQuery JavaScript libraries.

Anyone trying to bridge the gap between CSS, HTML and JavaScript will not be disappointed with this read. It should be stated however, that the term "Beginning" in the title of this book is a little misleading. I would not recommend this book to a beginner. It's a fast-paced book, spending most of the time in the trenches of JavaScript implementation (code examples). If you are a beginner, build a foundational understanding of the language before you take on this book. If you're looking for a great book to compliment this one, I would recommend the SitePoint book DHTML Utopia.
10 von 11 Kunden fanden die folgende Rezension hilfreich
Great book to learn how to do JavaScript properly 27. September 2006
Von Andrew Monkhouse - Veröffentlicht auf Amazon.com
Format: Taschenbuch
Up until now, most JavaScript books I have seen have not really described how to be a good JavaScript programmer - most of them have lead by example (which is how many JavaScript programmers I know learnt JavaScript). Unfortunately learning JavaScript by simply viewing other people's code without understanding why it was written the way it was could also lead to learning by bad example.

Christian Heilmann's "Beginning JavaScript with DOM Scripting and Ajax" is different - it teaches the reader the concepts that will help them to become a good JavaScript programmer. Perhaps more importantly, it teaches how to use JavaScript, CSS, DOM, and Ajax in a degradable manner, so that all visitors to your web site will be able to access it. Christian explains not only the guidelines for developing good code, but the reasons why it is important.

Christian's passion for creating maintainable, standards compliant, usable websites is clearly visible in his writing. Throughout the book he reiterates key issues that good programmers should know, and demonstrates them in his code.

This is an excellent book on JavaScript, and one that I will thoroughly recommend to anybody new to JavaScript programming. I also recommend it to anyone who plans to make their website more accessible to a wider audience (and who doesn't want that?).
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