Get Accelerated DOM Scripting with Ajax, APIs, and Libraries PDF

By Jonathan Snook, Stuart Langridge, Aaron Gustafson, Dan Webb

ISBN-10: 1590597648

ISBN-13: 9781590597644

If you're an internet developer with prior JavaScript and DOM scripting event, Accelerated DOM Scripting with Ajax, APIs, and Libraries is ideal so you might take your wisdom to the subsequent level.

This booklet is set JavaScript and utilizing the rfile item model—the conduit to the HTML rfile. This publication isn't approximately studying how one can software JavaScript from scratch. It begins with the belief that you've performed a few JavaScript improvement earlier than and comprehend the JavaScript syntax. This e-book builds on that wisdom to offer you a deeper realizing of DOM scripting and the way to use that on your initiatives. It makes use of this new knowing to explain what JavaScript libraries are and convey you the way they are often utilized on your venture. The ebook also will clarify Ajax and the way top to devise and use it on your tasks. It explains the best way to construct basic animation gadgets for including circulation to components at the web page. There are undemanding examples that reveal the recommendations used in the course of the book.

JavaScript has noticeable a resurgence in reputation during the last few years, and with it has come an exploration of the facility of the language in addition to what it could actually do in the browser. This booklet will clarify strategies new and old—such as closures, encapsulation, and inheritance—that many are utilizing and the way you could most sensible practice them for your personal projects.

By interpreting this ebook, you'll have a better realizing of ways JavaScript works and be capable to use complex ideas corresponding to closures and occasion delegation to construct extra versatile purposes for the net. You'll stroll away with a better appreciation for JavaScript libraries and the way they could simplify and accelerate your improvement. You'll even be capable of enforce Ajax successfully into your website, create lighting tricks, use JavaScript libraries, and know the way top to use those libraries on your projects.
<h3>What you’ll learn</h3> * the place CSS, HTML, and the DOM healthy into sleek scripting, and the way to exploit them jointly successfully
* Object-oriented programming strategies for extra effective JavaScript coding
* how you can use JavaScript libraries similar to Prototype on your paintings
* the right way to construct potent shape validation into your purposes utilizing Ajax
* the right way to create mashups utilizing APIs
* tips on how to construct dynamic person interfaces
<h3>Who this e-book is for</h3>
This booklet is for amateur to intermediate builders, and have already got wisdom of HTML, CSS, and JavaScript.
<h3>Table of Contents</h3><ol> * The kingdom of JavaScript
* HTML, CSS, and JavaScript
* Object-Oriented Programming
* Libraries
* Ajax and information trade
* visible results
* shape Validation and JavaScript
* Case examine: FAQ Facelift
* A Dynamic aid process

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Extra info for Accelerated DOM Scripting with Ajax, APIs, and Libraries

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Suffice it to say, you’ll be sticking to Level 1 with a smidge of Level 2. ■Note Although they are often referred to as web standards, in the academic sense they are called recommendations. The members of a W3C committee work together to develop a set of recommendations for all to follow. DOM Tree Structures The DOM is represented as a tree structure. qxd 9/6/07 7:55 PM Page 27 CHAPTER 2 ■ HTML, CSS, AND JAVASCRIPT Figure 2-2 shows a graphical representation of how the preceding HTML looks to the DOM.

Then, find the class name you passed into the function. Finally, find the end of the class name by looking for a space or the end of the string. The ^ matches the beginning of a string; $ matches the end. The | is similar to JavaScript’s || and checks to see whether it matches the character on the right or the character on the left of |. getElementsByTagName("*"); The asterisk ("*") being passed into the getElementsByTagName() method discussed earlier means to return all elements. push(els[i]); className is a property of an element and stores the value of the class attribute.

The Firebug check mark icon Clicking the icon expands the interface. There’s a lot of functionality packed into it, and while I won’t go into everything, I do want to highlight some key features that will help in your debugging efforts. In Figure 1-3, the Console tab is selected. JavaScript error messages, Ajax calls, Profile results, and command-line results appear in the console. Objects can be expanded to view properties, error messages can be clicked to view the offending line in the source, Ajax calls can be expanded to view request and response information, and profile results can be analyzed to discover where errors might be occurring.

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Accelerated DOM Scripting with Ajax, APIs, and Libraries by Jonathan Snook, Stuart Langridge, Aaron Gustafson, Dan Webb

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