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Jeffrey Sambells's AdvancED DOM Scripting: Dynamic Web Design Techniques PDF

By Jeffrey Sambells

ISBN-10: 1590598563

ISBN-13: 9781590598566

As an internet fashion designer or developer, you understand how robust DOM scripting is for reinforcing web content and purposes, including dynamic performance and enhancing the consumer event. you've an affordable figuring out of JavaScript and the DOM, yet now you need to take your talents additional. This booklet is all you have to do soit exhibits you the way so as to add crucial performance for your websites, equivalent to at the fly structure and elegance adjustments, interface personalization, maps and seek utilizing APIs, visible results utilizing JavaScript libraries, and lots more and plenty more.

  • Includes a short recap of the fundamentals, for reference purposes.
  • Packed with actual global JavaScript recommendations from commencing to end
  • Written by means of "Beginning Google Maps" writer Jeffrey Sambells, and encompasses a case examine through JavaScript guru Aaron Gustafson.

What you’ll learn

  • A speedy recap of the HTML and CSS DOM, equipment, and events.
  • Shows you the fundamentals of the way so as to add dynamic results and reply to person activities on your sites utilizing CSS and JavaScript.
  • Introduces Ajax to the combo, exhibiting you ways to take advantage of it, and while to not use it.
  • Learn most sensible practices (such as swish degredation) and productiveness development through code reuse (libraries and APIs)
  • Create Mashups utilizing seek, photograph and mapping APIs.
  • Build higher, extra dynamic consumer reviews utilizing libraries reminiscent of Prototype and Scriptaculous.

Who this ebook is for

This ebook is for intermediate to complex internet designers and builders who have already got an affordable to reliable wisdom of HTML, CSS, and JavaScript.

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Extra info for AdvancED DOM Scripting: Dynamic Web Design Techniques

Sample text

The bots that crawl the web looking at all your pages and content don’t execute JavaScript, so if you want to be found, you’d better not rely on JavaScript for your navigation or content; I can’t stress this enough. 16 DO IT RIGHT WITH BEST PRACTICES If you’ve been keeping up to date with the latest news on search engine bots, you may have heard rumors that Google’s bot seems to be downloading CSS and JavaScript files along with pages. com/codesearch. Either way, if Google’s bot figures out a way to understand and navigate a JavaScript interface, that bot will be an exception to the rule, so don’t depend on it.

You can avoid a lot of frustration by keeping two simple things in mind: be unique and don’t share. To be unique, you need to pick a name for your space that’s not going to be used elsewhere. The Yahoo Libraries, for example, use YAHOO, whereas Google Maps uses a G prefix for everything. As you’ll see shortly, I’m going to use ADS for Advanced DOM Scripting in all the examples for this book, but feel free to change that to something more unique for you. If you use your own, you can load the book’s source along with your source and run them side-by-side if you like.

Figure 1-4. An alert window showing the actual result of the click But why is this? Each alert() produces the same message because the value of i isn’t actually retrieved from the scope chain until the click event occurs. When the click occurs, initAnchors() has already finished executing, so i will be equal to 4, because it has been incremented to a number greater than 3 to stop the loop. 36 DO IT RIGHT WITH BEST PRACTICES When the click event listener is invoked and checks its internal scope for the value of i, it doesn’t have it, so it looks to its external scope, in this case the initAnchors() function.

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AdvancED DOM Scripting: Dynamic Web Design Techniques by Jeffrey Sambells


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