No matter how much experience you have with JavaScript, odds are you don’t fully understand the language. This concise, in-depth guide takes you inside JavaScript’s this structure and object prototypes. You’ll learn how they work and why they’re integral to behavior delegation―a design pattern in which objects are linked, rather than cloned.

Like other books in the “You Don’t Know JS” series, this and Object Prototypes dives into trickier parts of the language that many JavaScript programmers simply avoid. Armed with this knowledge, you can become a true JavaScript master.

With this book you will:

Explore how the this binding points to objects based on how the function is called
Look into the nature of JS objects and why you’d need to point to them
Learn how developers use the mixin pattern to fake classes in JS
Examine how JS’s prototype mechanism forms links between objects
Learn how to move from class/inheritance design to behavior delegation
Understand how the OLOO (objects-linked-to-other-objects) coding style naturally implements behavior delegation

About the Author

Kyle Simpson is an Open Web Evangelist from Austin, TX. He's passionate about JavaScript, HTML5, real-time/peer-to-peer communications, and web performance. Otherwise, he's probably bored by it. Kyle is an author, workshop trainer, tech speaker, and avid OSS community member.

"About this title" may belong to another edition of this title.

Store Description

This book is being offered by Goodwill, a non-profit organization. All funds raised are used to support the Goodwill which provides quality, effective employment training and basic education to individuals experiencing significant barriers to economic opportunity. Because Jobs Change Lives. Proceeds from the sale of these goods and financial donations from the community make it possible for us to operate our free job training programs. Your donations and purchases help support these important programs and make the community a better place for all of us.

Visit Seller's Storefront

Seller's business information

Seattle Goodwill Industries
700 Dearborn PL S, Seattle, WA, 98144, U.S.A.

Sale & Shipping Terms

Terms of Sale

Returns are accepted according to the Abebooks Returns Policy. We respond to all inquiries within 2 business days.

Shipping Terms

We ship everything within 48 hours, and all our orders are shipped via UPS Mail Innovations. Please let us know if you have any questions or concerns. Customer satisfaction is our top priority.

Shipping rates within U.S.A.

Shipping rates within U.S.A.
Order quantity	5 to 14 business days	3 to 6 business days
First item	US$ 3.99	US$ 6.99

Delivery times are set by sellers and vary by carrier and location. Orders passing through Customs may face delays and buyers are responsible for any associated duties or fees. Sellers may contact you regarding additional charges to cover any increased costs to ship your items.