Javascript: Types & Grammar

You Don't Know JS

Kyle Simpson (Autor)

Buch | Softcover

198 Seiten

2015
O'Reilly Media (Verlag)
978-1-4919-0419-0 (ISBN)

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No matter how much experience you have with JavaScript, odds are you don’t fully understand the language. As part of the "You Don’t Know JS" series, this compact guide explores JavaScript types in greater depth than previous treatments by looking at type coercion problems, demonstrating why types work, and showing you how to take advantage of these features.

Like other books in this series, You Don’t Know JS: Types & Grammar dives into trickier parts of the language that many JavaScript programmers simply avoid or assume don’t exist (like types). Armed with this knowledge, you can achieve true JavaScript mastery.

With this book you will:

Get acquainted with JavaScript’s seven types: null, undefined, boolean, number, string, object, and symbol
Understand why JavaSript’s unique array, string, and number characteristics may delight or confound you
Learn how natives provide object wrappers around primitive values
Dive into the coercion controversy—and learn why this feature is useful in many cases
Explore various nuances in JavaScript syntax, involving statements, expressions, and other features

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.

Chapter 1Types
A Type by Any Other Name…
Built-in Types
Values as Types
Review
Chapter 2Values
Arrays
Strings
Numbers
Special Values
Value Versus Reference
Review
Chapter 3Natives
Internal [[Class]]
Boxing Wrappers
Unboxing
Natives as Constructors
Review
Chapter 4Coercion
Converting Values
Abstract Value Operations
Explicit Coercion
Implicit Coercion
Loose Equals Versus Strict Equals
Abstract Relational Comparison
Review
Chapter 5Grammar
Statements & Expressions
Operator Precedence
Automatic Semicolons
Errors
Function Arguments
try..finally
switch
Review
Appendix Mixed Environment JavaScript
Annex B (ECMAScript)
Host Objects
Global DOM Variables
Native Prototypes
scripts
Reserved Words
Implementation Limits
Review
Appendix Acknowledgments

Erscheint lt. Verlag	10.2.2015
Zusatzinfo	black & white illustrations
Verlagsort	Sebastopol
Sprache	englisch
Maße	160 x 228 mm
Gewicht	290 g
Einbandart	Paperback
Themenwelt	Informatik ► Web / Internet ► JavaScript
Schlagworte	JavaScript; Spezielle Anwendungsbereiche
ISBN-10	1-4919-0419-4 / 1491904194
ISBN-13	978-1-4919-0419-0 / 9781491904190
Zustand	Neuware