Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Learning jQuery - Fourth Edition

You're reading from   Learning jQuery - Fourth Edition Add to your current website development skills with this brilliant guide to JQuery. This step by step course needs little prior JavaScript knowledge so is suitable for beginners and more seasoned developers alike.

Arrow left icon
Product type Paperback
Published in Jun 2013
Publisher Packt
ISBN-13 9781782163145
Length 444 pages
Edition 4th Edition
Languages
Tools
Arrow right icon
Toc

Table of Contents (24) Chapters Close

Learning jQuery Fourth Edition
Credits
Foreword
About the Authors
About the Reviewers
www.PacktPub.com
Preface
1. Getting Started FREE CHAPTER 2. Selecting Elements 3. Handling Events 4. Styling and Animating 5. Manipulating the DOM 6. Sending Data with Ajax 7. Using Plugins 8. Developing Plugins 9. Advanced Selectors and Traversing 10. Advanced Events 11. Advanced Effects 12. Advanced DOM Manipulation 13. Advanced Ajax JavaScript Closures Testing JavaScript with QUnit Quick Reference Index

Extending events


Some events, such as mouseenter and ready, are designated as special events by the jQuery internals. These events use the elaborate event extension framework offered by jQuery. Such events get the opportunity to take action at various times in the life cycle of an event handler. They may react to handlers being bound or unbound, and they can even have preventable default behaviors like clicked links or submitted forms do. The event extension API lets us create sophisticated new events that act much like native DOM events.

The throttling behavior we implemented for scrolling in Listing 10.13 is useful, and we may want to generalize it for use in other projects. We can accomplish this by creating a new event that encapsulates the throttling technique within the special event hooks.

To implement special behavior for an event, we add a property to the $.event.special object. This added property, which is itself an object, has our event name as its key. It can contain callbacks...

lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime