This concise yet in-depth guide takes you inside scope and closures, two core concepts you need to know to become a more efficient and effective JavaScript programmer. You'll learn how and why they work, and how an understanding of closures can be a powerful part of your development skillset.

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Bibliographic Details

Title: You Don't Know JS : Scope and Closures
Publisher: O'Reilly Media
Publication Date: 2014
Language: English
ISBN 10: 1449335586
ISBN 13: 9781449335588
Binding: Paperback
Condition: Good

About this title

Synopsis

No matter how much experience you have with JavaScript, odds are you don’t fully understand the language. This concise yet in-depth guide takes you inside scope and closures, two core concepts you need to know to become a more efficient and effective JavaScript programmer. You’ll learn how and why they work, and how an understanding of closures can be a powerful part of your development skillset.

Like other books in the "You Don’t Know JS" series, Scope and Closures dives into trickier parts of the language that many JavaScript programmers simply avoid. Armed with this knowledge, you can achieve true JavaScript mastery.

Learn about scope, a set of rules to help JavaScript engines locate variables in your code
Go deeper into nested scope, a series of containers for variables and functions
Explore function- and block-based scope, “hoisting”, and the patterns and benefits of scope-based hiding
Discover how to use closures for synchronous and asynchronous tasks, including the creation of JavaScript libraries

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.

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