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

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

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

This publication is ready JavaScript and utilizing the record item model—the conduit to the HTML record. This ebook isn't really approximately studying how you can application JavaScript from scratch. It starts off with the belief that you've got performed a few JavaScript improvement sooner than and comprehend the JavaScript syntax. This publication builds on that wisdom to provide you a deeper figuring out 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 exhibit you the way they are often utilized for your undertaking. The ebook also will clarify Ajax and the way top to devise and use it on your tasks. It explains tips to construct uncomplicated animation items for including stream to parts at the web page. There are simple examples that show the strategies used through 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 may well do in the browser. This publication will clarify thoughts new and old—such as closures, encapsulation, and inheritance—that many are utilizing and the way you could most sensible observe them in your personal projects.

By examining this e-book, you will have a better realizing of ways JavaScript works and have the ability to use complicated ideas equivalent to closures and occasion delegation to construct extra versatile functions for the internet. 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 in a position to enforce Ajax successfully into your web site, create lighting tricks, use JavaScript libraries, and understand how most sensible to use those libraries on your projects.
<h3>What you’ll learn</h3> * the place CSS, HTML, and the DOM healthy into smooth scripting, and the way to take advantage of them jointly successfully
* Object-oriented programming strategies for extra effective JavaScript coding
* the right way to use JavaScript libraries comparable to Prototype on your paintings
* find out how to construct potent shape validation into your functions utilizing Ajax
* how you can create mashups utilizing APIs
* easy methods to construct dynamic consumer interfaces
<h3>Who this booklet 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 country of JavaScript
* HTML, CSS, and JavaScript
* Object-Oriented Programming
* Libraries
* Ajax and knowledge alternate
* visible results
* shape Validation and JavaScript
* Case examine: FAQ Facelift
* A Dynamic support procedure
</ol>

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

Sample text

You haven’t taken advantage of the innate power of HTML.

You accomplished two goals by using semantic HTML: • You added meaning to the document that the browser understands. From an accessibility point of view, it also makes the document easier to understand for people who use screen readers or might have the styles disabled. • You used less HTML, and brevity is good. The fewer bytes you have to send back and forth between the server and the client is a Good Thing™. Ajax has become popular in part because it gives you the ability to send less information (see Chapter 5).

Div> Look at that—the code now has meaning, doesn’t it? It does, but it’s terribly inefficient. You haven’t taken advantage of the innate power of HTML.

You accomplished two goals by using semantic HTML: • You added meaning to the document that the browser understands. From an accessibility point of view, it also makes the document easier to understand for people who use screen readers or might have the styles disabled. • You used less HTML, and brevity is good. The fewer bytes you have to send back and forth between the server and the client is a Good Thing™.

It also means that you can attach new properties and methods to the prototype and they’ll become available for all objects, even ones that were already cloned. This is done by using the prototype property of an object. othervalue); // shows "6" As you can see, I attached the new property to the prototype of my original object foo, but it is also available under my existing object bar. ) Passing by Value or by Reference There are two ways in which values are passed into a function: by value or by reference.

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