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Fair Use Source: B088P9Q6BB

7th Edition, by David Flanagan

For web developers and other programmers interested in using JavaScript, this bestselling book provides the most comprehensive JavaScript material on the market. The seventh edition represents a significant update, with new information for ECMAScript 2020, and new chapters on language-specific features.

JavaScript: The Definitive Guide is ideal for experienced programmers who want to learn the programming language of the web, and for current JavaScript programmers who want to master it.

JavaScript is the programming language of the web. The overwhelming majority of websites use JavaScript, and all modern web browsers—on desktops, tablets, and phones—include JavaScript interpreters, making JavaScript the most-deployed programming language in history. Over the last decade, Node.js has enabled JavaScript programming outside of web browsers, and the dramatic success of Node means that JavaScript is now also the most-used programming language among software developers. Whether you’re starting from scratch or are already using JavaScript professionally, this book will help you master the language.

If you are already familiar with other programming languages, it may help you to know that JavaScript is a high-level, dynamic, interpreted programming language that is well-suited to object-oriented and functional programming styles. JavaScript’s variables are untyped. Its syntax is loosely based on Java, but the languages are otherwise unrelated.

JavaScript derives its first-class functions from Scheme and its prototype-based inheritance from the little-known language Self. But you do not need to know any of those languages, or be familiar with those terms, to use this book and learn JavaScript.

This book covers the JavaScript language and the JavaScript APIs implemented by web browsers and by Node. I wrote it for readers with some prior programming experience who want to learn JavaScript and also for programmers who already use JavaScript but want to take their understanding to a new level and really master the language. My goal with this book is to document the JavaScript language comprehensively and definitively and to provide an in-depth introduction to the most important client-side and server-side APIs available to JavaScript programs. As a result, this is a long and detailed book. My hope, however, is that it will reward careful study and that the time you spend reading it will be easily recouped in the form of higher programming productivity.

David Flanagan is a computer programmer who spends most of his time writing about JavaScript and Java. His books with O'Reilly include Java in a Nutshell, Java Examples in a Nutshell, Java Foundation Classes in a Nutshell, JavaScript: The Definitive Guide, and JavaScript Pocket Reference. David has a degree in computer science and engineering from the Massachusetts Institute of Technology. He lives with his wife and children in the U.S. Pacific Northwest bewteen the cities of Seattle, Washington and Vancouver, British Columbia. David has a blog at www.davidflanagan.com.

• Publication Date: May 14, 2020
• Print Length: 708 pages
• Publisher: O'Reilly Media; 7th Edition (May 14, 2020)
• ASIN: B088P9Q6BB
• ISBN: 978-1-491-95202-3

• June 1998: Third Edition
• November 2001: Fourth Edition
• August 2006: Fifth Edition
• May 2011: Sixth Edition
• May 2020: Seventh Edition
  • Revision History for the Seventh Edition: 2020-05-13: First Release

Fair Use Source: B088P9Q6BB

“This book covers the JavaScript language and the JavaScript APIs implemented by web browsers and by Node.js. I wrote it for readers with some prior programming experience who want to learn JavaScript and also for programmers who already use JavaScript but want to take their understanding to a new level and really master the language. My goal with this JavaScript book is to document the JavaScript language comprehensively and definitively and to provide an in-depth introduction to the most important client-side APIs and server-side APIs available to JavaScript programs. As a result, this is a long and detailed book. My hope, however, is that it will reward careful study and that the time you spend reading it will be easily recouped in the form of higher programming productivity.

Previous editions of this book included a comprehensive JavaScript reference section. I no longer feel that it makes sense to include that material in printed form when it is so quick and easy to find up-to-date reference material online. If you need to look up anything related to core or client-side JavaScript, I recommend you visit the MDN website. And for server-side Node APIs, I recommend you go directly to the source and consult the Node.js reference documentation.”

Supplemental material (code examples, coding exercises, etc.) for this book is available for download at: https://oreil.ly/javascript_defgd7

Attribution: An attribution usually includes the title, author, publisher, and ISBN. For example: “JavaScript - The Definitive Guide, Seventh Edition, by David Flanagan (O’Reilly). Copyright 2020 David Flanagan, 978-1-491-95202-3.”

We have a web page for this book, where we list errata, examples, and any additional information. You can access this page at https://oreil.ly/javascript_defgd7.

Introduction to JavaScript:

• 1.1 Exploring JavaScript
• 1.2 JavaScript Hello World
• 1.3 A Tour of JavaScript
• 1.4 Example: JavaScript Character Frequency Histograms
• 1.5 Summary

• 2.1 The Text of a JavaScript Program
• 2.2 JavaScript Comments
• 2.3 JavaScript Literals
• 2.4 JavaScript Identifiers and Reserved Words
• 2.4.1 JavaScript Reserved Words
• 2.5 JavaScript Unicode
• 2.5.1 JavaScript Unicode Escape Sequences
• 2.5.2 JavaScript Unicode Normalization
• 2.6 JavaScript Optional Semicolons
• 2.7 JavaScript Summary

• 3.1 JavaScript Overview and Definitions
• 3.2 JavaScript Numbers
• 3.2.1 JavaScript Integer Literals
• 3.2.2 JavaScript Floating-Point Literals
• 3.2.3 JavaScript Arithmetic in JavaScript
• 3.2.4 JavaScript Binary Floating-Point and Rounding Errors
• 3.2.5 JavaScript Arbitrary Precision Integers with BigInt
• 3.2.6 JavaScript Dates and Times
• 3.3 JavaScript Text
• 3.3.1 JavaScript String Literals
• 3.3.2 JavaScript Escape Sequences in String Literals
• 3.3.3 JavaScript Working with Strings
• 3.3.4 JavaScript Template Literals
• 3.3.5 JavaScript Pattern Matching
• 3.4 JavaScript Boolean Values
• 3.5 JavaScript null and undefined
• 3.6 JavaScript Symbols
• 3.7 JavaScript The Global Object
• 3.8 JavaScript Immutable Primitive Values and Mutable Object References
• 3.9 JavaScript Type Conversions
• 3.9.1 JavaScript Conversions and Equality
• 3.9.2 JavaScript Explicit Conversions
• 3.9.3 JavaScript Object to Primitive Conversions
• 3.10 JavaScript Variable Declaration and Assignment
• 3.10.1 JavaScript Declarations with let and const
• 3.10.2 Variable Declarations with var]]
• 3.10.3 JavaScript Destructuring Assignment
• 3.11 JavaScript Summary

• 4.1 JavaScript Primary Expressions
• 4.2 JavaScript Object and Array Initializers
• 4.3 JavaScript Function Definition Expressions
• 4.4 JavaScript Property Access Expressions
• 4.4.1 JavaScript Conditional Property Access
• 4.5 JavaScript Invocation Expressions
• 4.5.1 JavaScript Conditional Invocation
• 4.6 JavaScript Object Creation Expressions
• 4.7 JavaScript Operator Overview
• 4.7.1 JavaScript Number of Operands
• 4.7.2 JavaScript Operand and Result Type
• 4.7.3 JavaScript Operator Side Effects
• 4.7.4 JavaScript Operator Precedence
• 4.7.5 JavaScript Operator Associativity
• 4.7.6 JavaScript Order of Evaluation
• 4.8 JavaScript Arithmetic Expressions
• 4.8.1 JavaScript The + Operator
• 4.8.2 JavaScript Unary Arithmetic Operators
• 4.8.3 JavaScript Bitwise Operators
• 4.9 JavaScript Relational Expressions
• 4.9.1 JavaScript Equality and Inequality Operators
• 4.9.2 JavaScript Comparison Operators
• 4.9.3 JavaScript The in Operator
• 4.9.4 JavaScript The instanceof Operator
• 4.10 JavaScript Logical Expressions
• 4.10.1 JavaScript Logical AND (&&)
• 4.10.2 |)
• 4.10.3 JavaScript Logical NOT (!)
• 4.11 JavaScript Assignment Expressions
• 4.11.1 JavaScript Assignment with Operation
• 4.12 JavaScript Evaluation Expressions
• 4.12.1 JavaScript eval()
• 4.12.2 JavaScript Global eval()
• 4.12.3 JavaScript Strict eval()
• 4.13 JavaScript Miscellaneous Operators
• 4.13.1 JavaScript The Conditional Operator (
• 4.13.2 JavaScript First-Defined (
• 4.13.3 JavaScript The typeof Operator
• 4.13.4 JavaScript The delete Operator
• 4.13.5 JavaScript The await Operator
• 4.13.6 JavaScript The void Operator
• 4.13.7 JavaScript The comma Operator (,)
• 4.14 JavaScript Summary ===Chapter 5 - Statements=== * 5.1 [[JavaScript Expression Statements
• 5.2 JavaScript Compound and Empty Statements
• 5.3 JavaScript Conditionals
• 5.3.1 JavaScript if
• 5.3.2 JavaScript else if
• 5.3.3 JavaScript switch
• 5.4 JavaScript Loops
• 5.4.1 JavaScript while
• 5.4.2 JavaScript do/while
• 5.4.3 JavaScript for
• 5.4.4 JavaScript for/of
• 5.4.5 JavaScript for/in
• 5.5 JavaScript Jumps
• 5.5.1 JavaScript Labeled Statements
• 5.5.2 JavaScript break
• 5.5.3 JavaScript continue
• 5.5.4 JavaScript return
• 5.5.5 JavaScript yield
• 5.5.6 JavaScript throw
• 5.5.7 JavaScript try/catch/finally 5.6 [[JavaScript Miscellaneous Statements
• 5.6.1 JavaScript with
• 5.6.2 JavaScript debugger
• 5.6.3 JavaScript “use strict”
• 5.7 JavaScript Declarations
• 5.7.1 JavaScript const, let, and var
• 5.7.2 JavaScript function
• 5.7.3 JavaScript class
• 5.7.4 JavaScript import and export
• 5.8 JavaScript Summary of JavaScript Statements

• 6.1 JavaScript Introduction to Objects
• 6.2 JavaScript Creating Objects
• 6.2.1 JavaScript Object Literals
• 6.2.2 JavaScript Creating Objects with new
• 6.2.3 JavaScript Prototypes
• 6.2.4 JavaScript Object.create()
• 6.3 JavaScript Querying and Setting Properties
• 6.3.1 JavaScript Objects As Associative Arrays
• 6.3.2 JavaScript Inheritance
• 6.3.3 JavaScript Property Access Errors
• 6.4 JavaScript Deleting Properties
• 6.5 JavaScript Testing Properties
• 6.6 JavaScript Enumerating Properties
• 6.6.1 JavaScript Property Enumeration Order
• 6.7 JavaScript Extending Objects
• 6.8 JavaScript Serializing Objects
• 6.9 JavaScript Object Methods
• 6.9.1 JavaScript The toString() Method
• 6.9.2 JavaScript The toLocaleString() Method
• 6.9.3 JavaScript The valueOf() Method
• 6.9.4 JavaScript The toJSON() Method
• 6.10 JavaScript Extended Object Literal Syntax
• 6.10.1 JavaScript Shorthand Properties
• 6.10.2 JavaScript Computed Property Names
• 6.10.3 JavaScript Symbols as Property Names
• 6.10.4 JavaScript Spread Operator
• 6.10.5 JavaScript Shorthand Methods
• 6.10.6 JavaScript Property Getters and Setters
• 6.11 JavaScript Summary ===Chapter 7 - Arrays=== * 7.1 [[JavaScript Creating Arrays
• 7.1.1 JavaScript Array Literals
• 7.1.2 JavaScript The Spread Operator
• 7.1.3 JavaScript The Array() Constructor
• 7.1.4 JavaScript Array.of()
• 7.1.5 JavaScript Array.from()
• 7.2 JavaScript Reading and Writing Array Elements
• 7.3 JavaScript Sparse Arrays
• 7.4 JavaScript Array Length
• 7.5 JavaScript Adding and Deleting Array Elements
• 7.6 JavaScript Iterating Arrays
• 7.7 JavaScript Multidimensional Arrays
• 7.8 JavaScript Array Methods
• 7.8.1 JavaScript Array Iterator Methods
• 7.8.2 JavaScript Flattening arrays with flat() and flatMap()
• 7.8.3 JavaScript Adding arrays with concat()
• 7.8.4 JavaScript Stacks and Queues with push(), pop(), shift(), and unshift()
• 7.8.5 JavaScript Subarrays with slice(), splice(), fill(), and copyWithin()
• 7.8.6 JavaScript Array Searching and Sorting Methods
• 7.8.7 JavaScript Array to String Conversions
• 7.8.8 JavaScript Static Array Functions
• 7.9 JavaScript Array-Like Objects
• 7.10 JavaScript Strings as Arrays
• 7.11 JavaScript Summary ===Chapter 8 - Functions=== * 8.1 [[JavaScript Defining Functions
• 8.1.1 JavaScript Function Declarations
• 8.1.2 JavaScript Function Expressions
• 8.1.3 JavaScript Arrow Functions
• 8.1.4 JavaScript Nested Functions
• 8.2 JavaScript Invoking Functions
• 8.2.1 JavaScript Function Invocation
• 8.2.2 JavaScript Method Invocation
• 8.2.3 JavaScript Constructor Invocation
• 8.2.4 JavaScript Indirect Invocation
• 8.2.5 JavaScript Implicit Function Invocation
• 8.3 JavaScript Function Arguments and Parameters
• 8.3.1 JavaScript Optional Parameters and Defaults
• 8.3.2 JavaScript Rest Parameters and Variable-Length Argument Lists
• 8.3.3 JavaScript The Arguments Object
• 8.3.4 JavaScript The Spread Operator for Function Calls
• 8.3.5 JavaScript Destructuring Function Arguments into Parameters
• 8.3.6 JavaScript Argument Types
• 8.4 JavaScript Functions as Values
• 8.4.1 JavaScript Defining Your Own Function Properties
• 8.5 JavaScript Functions as Namespaces
• 8.6 JavaScript Closures
• 8.7 JavaScript Function Properties, Methods, and Constructor
• 8.7.1 JavaScript The length Property
• 8.7.2 JavaScript The name Property
• 8.7.3 JavaScript The prototype Property
• 8.7.4 JavaScript The call() and apply() Methods
• 8.7.5 JavaScript The bind() Method
• 8.7.6 JavaScript The toString() Method
• 8.7.7 JavaScript The Function() Constructor
• 8.8 JavaScript Functional Programming
• 8.8.1 JavaScript Processing Arrays with Functions
• 8.8.2 JavaScript Higher-Order Functions
• 8.8.3 JavaScript Partial Application of Functions
• 8.8.4 JavaScript Memoization
• 8.9 JavaScript Summary ===Chapter 9 - Classes=== * 9.1 [[JavaScript Classes and Prototypes
• 9.2 JavaScript Classes and Constructors
• 9.2.1 JavaScript Constructors, Class Identity, and instanceof
• 9.2.2 JavaScript The constructor Property
• 9.3 JavaScript Classes with the class Keyword
• 9.3.1 JavaScript Static Methods
• 9.3.2 JavaScript Getters, Setters, and other Method Forms
• 9.3.3 JavaScript Public, Private, and Static Fields
• 9.3.4 A Complex Number Class
• 9.4 JavaScript Adding Methods to Existing Classes
• 9.5 JavaScript Subclasses
• 9.5.1 JavaScript Subclasses and Prototypes
• 9.5.2 JavaScript Subclasses with extends and super
• 9.5.3 JavaScript Delegation Instead of Inheritance
• 9.5.4 JavaScript Class Hierarchies and Abstract Classes
• 9.6 JavaScript Summary ===Chapter 10 - Modules=== * 10.1 [[JavaScript Modules with Classes, Objects, and Closures
• 10.1.1 JavaScript Automating Closure-Based Modularity
• 10.2 JavaScript Modules in Node 10.2.1 [[JavaScript Node Exports
• 10.2.2 JavaScript Node Imports
• 10.2.3 JavaScript Node-Style Modules on the Web
• 10.3 JavaScript Modules in ES6 10.3.1 [[JavaScript ES6 Exports
• 10.3.2 JavaScript ES6 Imports
• 10.3.3 JavaScript Imports and Exports with Renaming
• 10.3.4 JavaScript Re-Exports
• 10.3.5 JavaScript JavaScript Modules on the Web
• 10.3.6 JavaScript Dynamic Imports with import()
• 10.3.7 JavaScript import.meta.url
• 10.4 JavaScript Summary ===Chapter 1 - The JavaScript Standard Library=== * 11.1 [[JavaScript Sets and Maps
• 11.1.1 JavaScript The Set Class
• 11.1.2 JavaScript The Map Class
• 11.1.3 JavaScript WeakMap and WeakSet
• 11.2 JavaScript Typed Arrays and Binary Data
• 11.2.1 JavaScript Typed Array Types
• 11.2.2 JavaScript Creating Typed Arrays
• 11.2.3 JavaScript Using Typed Arrays
• 11.2.4 JavaScript Typed Array Methods and Properties
• 11.2.5 JavaScript DataView and Endianness
• 11.3 JavaScript Pattern Matching with Regular Expressions
• 11.3.1 JavaScript Defining Regular Expressions
• 11.3.2 JavaScript String Methods for Pattern Matching
• 11.3.3 JavaScript The RegExp Class
• 11.4 JavaScript Dates and Times
• 11.4.1 JavaScript Timestamps
• 11.4.2 JavaScript Date Arithmetic
• 11.4.3 JavaScript Formatting and Parsing Date Strings
• 11.5 JavaScript Error Classes
• 11.6 JavaScript JSON Serialization and Parsing
• 11.6.1 JavaScript JSON Customizations
• 11.7 JavaScript The Internationalization API
• 11.7.1 JavaScript Formatting Numbers
• 11.7.2 JavaScript Formatting Dates and Times
• 11.7.3 JavaScript Comparing Strings
• 11.8 JavaScript The Console API
• 11.8.1 JavaScript Formatted Output with Console
• 11.9 JavaScript URL APIs
• 11.9.1 JavaScript Legacy URL Functions
• 11.10 JavaScript Timers
• 11.11 JavaScript Summary ===Chapter 12 - Iterators and Generators=== * 12.1 [[JavaScript How Iterators Work
• 12.2 JavaScript Implementing Iterable Objects
• 12.2.1 JavaScript “Closing” an Iterator - The Return Method
• 12.3 JavaScript Generators 12.3.1 [[JavaScript Generator Examples
• 12.3.2 JavaScript yield* and Recursive Generators
• 12.4 JavaScript Advanced Generator Features
• 12.4.1 JavaScript The Return Value of a Generator Function
• 12.4.2 JavaScript The Value of a yield Expression
• 12.4.3 JavaScript The return() and throw() Methods of a Generator
• 12.4.4 JavaScript A Final Note About Generators
• 12.5 JavaScript Summary ===Chapter 13 - Asynchronous JavaScript=== * 13.1 [[JavaScript Asynchronous Programming with Callbacks
• 13.1.1 JavaScript Timers
• 13.1.2 JavaScript Events
• 13.1.3 JavaScript Network Events
• 13.1.4 JavaScript Callbacks and Events in Node
• 13.2 JavaScript Promises
• 13.2.1 JavaScript Using Promises
• 13.2.2 JavaScript Chaining Promises
• 13.2.3 JavaScript Resolving Promises
• 13.2.4 JavaScript More on Promises and Errors
• 13.2.5 JavaScript Promises in Parallel
• 13.2.6 JavaScript Making Promises
• 13.2.7 JavaScript Promises in Sequence
• 13.3 JavaScript async and await
• 13.3.1 JavaScript await Expressions
• 13.3.2 JavaScript async Functions
• 13.3.3 JavaScript Awaiting Multiple Promises
• 13.3.4 JavaScript Implementation Details
• 13.4 JavaScript Asynchronous Iteration
• 13.4.1 JavaScript The for/await Loop
• 13.4.2 JavaScript Asynchronous Iterators
• 13.4.3 JavaScript Asynchronous Generators
• 13.4.4 JavaScript Implementing Asynchronous Iterators
• 13.5 JavaScript Summary ===Chapter 14 - Metaprogramming=== * 14.1 [[JavaScript Property Attributes
• 14.2 JavaScript Object Extensibility
• 14.3 JavaScript The prototype Attribute
• 14.4 JavaScript Well-Known Symbols
• 14.4.1 JavaScript Symbol.iterator and Symbol.asyncIterator
• 14.4.2 JavaScript Symbol.hasInstance
• 14.4.3 JavaScript Symbol.toStringTag
• 14.4.4 JavaScript Symbol.species
• 14.4.5 JavaScript Symbol.isConcatSpreadable
• 14.4.6 JavaScript Pattern-Matching Symbols
• 14.4.7 JavaScript Symbol.toPrimitive
• 14.4.8 JavaScript Symbol.unscopables
• 14.5 JavaScript Template Tags
• 14.6 JavaScript The Reflect API
• 14.7 JavaScript Proxy Objects
• 14.7.1 JavaScript Proxy Invariants
• 14.8 JavaScript Summary ===Chapter 15 - JavaScript in Web Browsers=== * 15.1 [[JavaScript Web Programming Basics
• 15.1.1 JavaScript JavaScript in HTML <script> Tags
• 15.1.2 JavaScript The Document Object Model
• 15.1.3 JavaScript The Global Object in Web Browsers
• 15.1.4 JavaScript Scripts Share a Namespace
• 15.1.5 JavaScript Execution of JavaScript Programs
• 15.1.6 JavaScript Program Input and Output
• 15.1.7 JavaScript Program Errors
• 15.1.8 JavaScript The Web Security Model
• 15.2 JavaScript Events
• 15.2.1 JavaScript Event Categories
• 15.2.2 JavaScript Registering Event Handlers
• 15.2.3 JavaScript Event Handler Invocation
• 15.2.4 JavaScript Event Propagation
• 15.2.5 JavaScript Event Cancellation
• 15.2.6 JavaScript Dispatching Custom Events
• 15.3 JavaScript Scripting Documents
• 15.3.1 JavaScript Selecting Document Elements
• 15.3.2 JavaScript Document Structure and Traversal
• 15.3.3 JavaScript Attributes
• 15.3.4 JavaScript Element Content
• 15.3.5 JavaScript Creating, Inserting, and Deleting Nodes
• 15.3.6 Generating a Table of Contents
• 15.4 JavaScript Scripting CSS
• 15.4.1 JavaScript CSS Classes
• 15.4.2 JavaScript Inline Styles
• 15.4.3 JavaScript Computed Styles
• 15.4.4 JavaScript Scripting Stylesheets
• 15.4.5 JavaScript CSS Animations and Events
• 15.5 JavaScript Document Geometry and Scrolling
• 15.5.1 JavaScript Document Coordinates and Viewport Coordinates
• 15.5.2 JavaScript Querying the Geometry of an Element
• 15.5.3 JavaScript Determining the Element at a Point
• 15.5.4 JavaScript Scrolling
• 15.5.5 JavaScript Viewport Size, Content Size, and Scroll Position
• 15.6 JavaScript Web Components
• 15.6.1 JavaScript Using Web Components
• 15.6.2 JavaScript HTML Templates
• 15.6.3 JavaScript Custom Elements
• 15.6.4 JavaScript Shadow DOM
• 15.6.5 a <search-box> Web Component
• 15.7 JavaScript SVG - Scalable Vector Graphics
• 15.7.1 JavaScript SVG in HTML
• 15.7.2 JavaScript Scripting SVG
• 15.7.3 JavaScript Creating SVG Images with JavaScript
• 15.8 JavaScript Graphics in a <canvas>
• 15.8.1 JavaScript Paths and Polygons
• 15.8.2 JavaScript Canvas Dimensions and Coordinates
• 15.8.3 JavaScript Graphics Attributes
• 15.8.4 JavaScript Canvas Drawing Operations
• 15.8.5 JavaScript Coordinate System Transforms
• 15.8.6 JavaScript Clipping
• 15.8.7 JavaScript Pixel Manipulation
• 15.9 JavaScript Audio APIs
• 15.9.1 JavaScript The Audio() Constructor
• 15.9.2 JavaScript The WebAudio API
• 15.10 JavaScript Location, Navigation, and History
• 15.10.1 JavaScript Loading New Documents
• 15.10.2 JavaScript Browsing History
• 15.10.3 JavaScript History Management with hashchange Events
• 15.10.4 JavaScript History Management with pushState()
• 15.11 JavaScript Networking
• 15.11.1 JavaScript fetch()
• 15.11.2 JavaScript Server-Sent Events
• 15.11.3 JavaScript WebSockets
• 15.12 JavaScript Storage
• 15.12.1 JavaScript localStorage and sessionStorage
• 15.12.2 JavaScript Cookies
• 15.12.3 JavaScript IndexedDB
• 15.13 JavaScript Worker Threads and Messaging
• 15.13.1 JavaScript Worker Objects
• 15.13.2 JavaScript The Global Object in Workers
• 15.13.3 JavaScript Importing Code into a Worker
• 15.13.4 JavaScript Worker Execution Model
• 15.13.5 JavaScript postMessage(), MessagePorts, and MessageChannels
• 15.13.6 JavaScript Cross-Origin Messaging with postMessage()
• 15.14 The Mandelbrot Set
• 15.15 Summary and Suggestions for Further Reading]]
• 15.15.1 JavaScript HTML and CSS
• 15.15.2 JavaScript Performance
• 15.15.3 JavaScript Security
• 15.15.4 JavaScript WebAssembly
• 15.15.5 JavaScript More Document and Window Features
• 15.15.6 JavaScript Events
• 15.15.7 JavaScript Progressive Web Apps and Service Workers
• 15.15.8 JavaScript Mobile Device APIs
• 15.15.9 JavaScript Binary APIs
• 15.15.10 JavaScript Media APIs
• 15.15.11 JavaScript Cryptography and Related APIs

• 16.1 JavaScript Node Programming Basics
• 16.1.1 JavaScript Console Output
• 16.1.2 JavaScript Command-Line Arguments and Environment Variables
• 16.1.3 JavaScript Program Life Cycle
• 16.1.4 JavaScript Node Modules
• 16.1.5 JavaScript The Node Package Manager
• 16.2 JavaScript Node Is Asynchronous by Default
• 16.3 JavaScript Buffers
• 16.4 JavaScript Events and EventEmitter
• 16.5 JavaScript Streams 16.5.1 [[JavaScript Pipes
• 16.5.2 JavaScript Asynchronous Iteration
• 16.5.3 JavaScript Writing to Streams and Handling Backpressure
• 16.5.4 JavaScript Reading Streams with Events
• 16.6 JavaScript Process, CPU, and Operating System Details
• 16.7 JavaScript Working with Files
• 16.7.1 JavaScript Paths, File Descriptors, and FileHandles
• 16.7.2 JavaScript Reading Files
• 16.7.3 JavaScript Writing Files
• 16.7.4 JavaScript File Operations
• 16.7.5 JavaScript File Metadata
• 16.7.6 JavaScript Working with Directories
• 16.8 JavaScript HTTP Clients and Servers
• 16.9 JavaScript Non-HTTP Network Servers and Clients
• 16.10 JavaScript Working with Child Processes
• 16.10.1 JavaScript execSync() and execFileSync()
• 16.10.2 JavaScript exec() and execFile()
• 16.10.3 JavaScript spawn()
• 16.10.4 JavaScript fork()
• 16.11 JavaScript Worker Threads
• 16.11.1 JavaScript Creating Workers and Passing Messages
• 16.11.2 JavaScript The Worker Execution Environment
• 16.11.3 JavaScript Communication Channels and MessagePorts
• 16.11.4 JavaScript Transferring MessagePorts and Typed Arrays
• 16.11.5 JavaScript Sharing Typed Arrays Between Threads
• 16.12 Summary

• 17.1 JavaScript Linting with ESLint
• 17.2 JavaScript JavaScript Formatting with Prettier
• 17.3 JavaScript Unit Testing with Jest
• 17.4 JavaScript Package Management with npm
• 17.5 JavaScript Code Bundling
• 17.6 JavaScript Transpilation with Babel
• 17.7 Markup Expressions in JavaScript
• 17.8 JavaScript Type Checking with Flow
• 17.8.1 JavaScript Installing and Running Flow
• 17.8.2 JavaScript Using Type Annotations
• 17.8.3 JavaScript Class Types
• 17.8.4 JavaScript Object Types
• 17.8.5 JavaScript Type Aliases
• 17.8.6 JavaScript Array Types
• 17.8.7 JavaScript Other Parameterized Types
• 17.8.8 JavaScript Read-Only Types
• 17.8.9 JavaScript Function Types
• 17.8.10 JavaScript Union Types
• 17.8.11 JavaScript Enumerated Types and Discriminated Unions
• 17.9 JavaScript Summary ===Index=== [[JavaScript Index