Book Image

Learning jQuery 1.3

By : Jonathan Chaffer, Karl Swedberg
Book Image

Learning jQuery 1.3

By: Jonathan Chaffer, Karl Swedberg

Overview of this book

<p>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. <br /><br />Revised and updated for version 1.3 of jQuery, this book teaches you 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.<br /><br />In this book, the authors share their knowledge, experience, and enthusiasm about jQuery to help you get the most from the library and to make your web applications shine. The book introduces jQuery and shows how you can write a functioning jQuery program in just three lines of code. It then guides you through CSS selectors and shows how to enhance the basic event handling mechanisms to give them a more elegant syntax. You will then learn to add impact to your actions through a set of simple visual effects and also to create, copy, reassemble, and embellish content using jQuery's DOM modification methods. You will also learn to send and retrieve information with AJAX methods. The book will then step you through many detailed, real-world examples and even equip you to extend the jQuery library itself with your own plug-ins.</p>
Table of Contents (22 chapters)
Learning jQuery 1.3
Credits
Foreword
About the Authors
About the Reviewers
Preface
Index

Tools for Internet Explorer


Sites often behave differently in IE than in other web browsers, so having debugging tools for this platform is important.

Microsoft Internet Explorer Developer Toolbar

The Developer Toolbar primarily provides a view of the DOM tree for a web page. Elements can be located visually, and modified on the fly with new CSS rules. It also provides other miscellaneous development aids, such as a ruler for measuring page elements:

http://www.microsoft.com/downloads/details.aspx?FamilyID=e59c3964-672d-4511-bb3e-2d5e1db91038

Microsoft Visual Web Developer

Microsoft's Visual Studio package can be used to inspect and debug JavaScript code:

http://msdn.microsoft.com/vstudio/express/vwd/

To run the debugger interactively in the free version (Visual Web Developer Express), follow the process outlined here:

http://www.berniecode.com/blog/2007/03/08/how-to-debug-javascript-with-visual-web-developer-express/

DebugBar

The DebugBar provides a DOM inspector as well as a JavaScript console for debugging:

http://www.debugbar.com/

Drip

Memory leaks in JavaScript code can cause performance and stability issues for Internet Explorer. Drip helps to detect and isolate these memory issues:

http://Sourceforge.net/projects/ieleak/

To learn more about a common cause of Internet Explorer memory leaks, see Appendix C, JavaScript Closures.