Read e-book online Ajax For Dummies® PDF

By Steve Holzner

ISBN-10: 0470038098

ISBN-13: 9780470038093

Ajax is brief for “Asynchronous JavaScript+CSS+DOM+XMLHttpRequest.”

Even should you weren’t intimidated prior to, that tidbit is perhaps sufficient to make you achieve for the Excedrin. simply achieve for Ajax For Dummies as a substitute. With display pictures, genuine code and causes, and reside sites the place you will see Ajax purposes doing their factor, it's going to have you ever utilizing Ajax to create net functions that glance an act like machine functions very quickly. With Ajax, you could accelerate and freshen up your net functions. consumers at your on-line shop can fill their carts with out looking forward to a number of web page refreshes. Searchers in your websites can get speedy effects at the comparable page.

This advisor takes you on a journey of the way Ajax is used this present day, whole with examples of Ajax functions in motion, reminiscent of an Ajax-enabled Yahoo! seek or an Ajax-based chat software. Then it grants fundamentals on utilizing JavaScript. After that you simply dive in and get information on:

  • Writing a few Ajax, interactive mouseovers utilizing Ajax, passing facts to the server with GET or publish, and more
  • Connecting to Google for a dwell search
  • Using loose Ajax frameworks so that you don’t need to commence from scratch, together with Ajax Gold (written in particular for this book), AJAXLib, and grabbing XML with libXmlRequest
  • All types of Ajax thoughts, reminiscent of utilizing Ajax for drag-and-drop operations, pop-up menus, downloading photographs behind the curtain, and more
  • Using SACK (simple AJAX code kit), deciphering XML with Sarissa, and growing visible results with Rico
  • Handling XML int Ajax Applications
  • Working with cascading sort sheets (CCS) in Ajax, together with constructing the types, exhibiting a menu, styling textual content, dealing with shades and backgrounds, and more
  • Working with Ajax and PHP

Complete with a significant other website, unfastened Ajax frameworks, and pattern code you should use, Ajax for Dummies is your pleasant advisor to making really easy net sites!

Note: CD-ROM/DVD and different supplementary fabrics usually are not integrated as a part of publication file.

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Additional resources for Ajax For Dummies®

Example text

If you want to select one of those terms, just click it in the menu. That’s all there is to it. You can also write an Ajax application that connects to Google in this way behind the scenes. Chapter 4 has all the details. Figure 1-2: A Google live search. Getting the answer with autocomplete Closely allied to live search applications are autocomplete applications, which try to guess the word you’re entering by getting a list of similar words from the server and displaying them. org/demos/live, which appears in Figure 1-3.

But there’s no yellow triangle of death here to click. Instead, you can choose Tools➪ JavaScript Console to open the Firefox JavaScript Console. This displays the window shown in Figure 2-6. Chapter 2: It’s All About JavaScript Figure 2-4: The yellow triangle of death signifies an error in your JavaScript. Figure 2-5: You can get the details of the error from Internet Explorer. Figure 2-6: The Firefox JavaScript Console. 31 32 Part I: Getting Started You can read right away what the error is: docment isn’t defined.

Then the section is loaded, which puts the A First Script heading on the Web page. The bottom line is that you simply don’t get the control you need by using the inline script. To make the JavaScript run only when you want, you need a function. Putting together a function To illustrate how JavaScript functions typically work in Ajax applications, say that you create a function named displayText, which works like this: Getting started with JavaScript