Book Image

Learning jQuery - Fourth Edition - Fourth Edition

Book Image

Learning jQuery - Fourth Edition - Fourth Edition

Overview of this book

To build interesting, interactive sites, developers are turning to JavaScript libraries such as jQuery to automate common tasks and simplify complicated ones. Because many web developers have more experience with HTML and CSS than with JavaScript, the library's design lends itself to a quick start for designers with little programming experience. Experienced programmers will also be aided by its conceptual consistency. LearningjQuery - Fourth Edition is revised and updated version of jQuery. You will learn the basics of jQuery for adding interactions and animations to your pages. Even if previous attempts at writing JavaScript have left you baffled, this book will guide you past the pitfalls associated with AJAX, events, effects, and advanced JavaScript language features. Starting with an introduction to jQuery, you will first be shown how to write a functioning jQuery program in just three lines of code. Learn how to add impact to your actions through a set of simple visual effects and to create, copy, reassemble, and embellish content using jQuery's DOM modification methods. The book will take you through many detailed, real-world examples, and even equip you to extend the jQuery library itself with your own plug-ins.
Table of Contents (24 chapters)
Learning jQuery Fourth Edition
About the Authors
About the Reviewers

Chapter 6. Sending Data with Ajax

The term Asynchronous JavaScript and XML (Ajax) was coined by Jesse James Garrett in 2005. Since then it has come to represent many different things, as the term encompasses a group of related capabilities and techniques. At its most basic level, an Ajax solution includes the following technologies:

  • JavaScript: This is used to capture interactions with the user or other browser-related events and to interpret the data from the server and present it on the page

  • XMLHttpRequest: This allows requests to be made to the server without interrupting other browser tasks

  • Textual data: The server provides data in a format such as XML, HTML, or JSON

Ajax has been hailed as the savior of the web landscape, transforming static web pages into interactive web applications. Unsurprisingly, browsers are not entirely consistent with regard to their implementations of the XMLHttpRequest object, but jQuery will assist us in taming this feature.

In this chapter, we will cover:

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