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SummaryExtending 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 TechnologyjQuery, 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 BookExtending 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 InsideCreate jQuery UI widgets and effectsMake extensions available for distribution and reuseBuild your own librariesAbout the AuthorKeith Wood has developed over 20 jQuery plugins including the original Datepicker, World Calendar, Countdown, and SVG.Table of ContentsPART 1 SIMPLE EXTENSIONSjQuery extensionsA first pluginSelectors and filtersPART 2 PLUGINS AND FUNCTIONSPlugin principlesCollection pluginsFunction pluginsTest, package, and document your pluginPART 3 EXTENDING JQUERY UIjQuery UI widgetsjQuery UI mouse interactionsjQuery UI effectsPART 4 OTHER EXTENSIONSAnimating propertiesExtending AjaxExtending eventsCreating validation rules