Extending jQuery

Summary

Extending jQuery teaches you to build custom extensions to the jQuery library. It covers all the extension points within jQuery and provides guidelines and techniques on how to make use of them. You''ll not only discover how to write plugins, but how to design them for maximum reuse. You''ll also learn how to write new widgets and effects for jQuery UI. Along the way, you''ll explore extensions in key areas including Ajax, events, animation, and validation.

About the Technology

jQuery, the most popular JavaScript library, helps make client-side scripting of HTML easy. It offers many built-in abilities to traverse and alter the DOM, but it can''t do everything. Fortunately, you can tap into jQuery''s numerous extension points to create your own selectors and filters, plugins, animations, and more.

About this Book

Extending jQuery teaches you to build custom extensions to the jQuery library. In it, you''ll discover how to write plugins and how to design them for maximum reuse. You''ll also learn to write new widgets and effects for the jQuery UI. Along the way, you''ll explore extensions in key areas including Ajax, events, animation, and validation.

This book assumes intermediate-level knowledge of jQuery and JavaScript. No experience writing plugins or other extensions is required.

Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications.

What''s Inside

• Create jQuery UI widgets and effects
• Make extensions available for distribution and reuse
• Build your own libraries

About the Author

Keith Wood has developed over 20 jQuery plugins including the original Datepicker, World Calendar, Countdown, and SVG.

Table of Contents

PART 1 SIMPLE EXTENSIONS

jQuery extensions

A first plugin

Selectors and filters

PART 2 PLUGINS AND FUNCTIONS

Plugin principles

Collection plugins

Function plugins

Test, package, and document your plugin

PART 3 EXTENDING JQUERY UI

jQuery UI widgets

jQuery UI mouse interactions

jQuery UI effects

PART 4 OTHER EXTENSIONS

Animating properties

Extending Ajax

Extending events

Creating validation rules