David Flanagan
Copyright © 2011 David Flanagan. All rights reserved.
Printed in the United States of America
Published by O’Reilly Media, Inc., 1005 Gravenstein Highway North, Sebastopol, CA 95472.
 |
| JavaScript The Definitive Guide, 6th Edition |
This book covers the JavaScript language and the JavaScript APIs implemented by web
browsers. I wrote it for readers with at least 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 and the web
platform. My goal with this book is to document the JavaScript language and platform
comprehensively and definitively. As a result, this is a large 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.
This book is divided into four parts. Part I covers the JavaScript language itself.
Part II covers client-side JavaScript: the JavaScript APIs defined by HTML5 and related
standards and implemented by web browsers. Part III is the reference section for the
core language, and Part IV is the reference for client-side JavaScript. Chapter 1 includes
an outline of the chapters in Parts I and II (see §1.1).
This sixth edition of the book covers both ECMAScript 5 (the latest version of the core
language) and HTML5 (the latest version of the web platform). You’ll find
ECMAScript 5 material throughout Part I. The new material on HTML5 is mostly in
the chapters at the end of Part II, but there is also some in other chapters as well.
Completely new chapters in this edition include Chapter 11, JavaScript Subsets and
Extensions; Chapter 12, Server-Side JavaScript; Chapter 19, The jQuery Library; and
Chapter 22, HTML5 APIs.
Readers of previous editions may notice that I have completely rewritten many of the
chapters in this book for the sixth edition. The core of Part I—the chapters covering
objects, arrays, functions, and classes—is all new and brings the book in line with
current programming styles and best practices. Similarly, key chapters of Part II, such
as those covering documents and events, have been completely rewritten to bring them up-to-date.
Table of Contents
Preface . . . . . . . . xiii
1. Introduction to JavaScript . . . . . . . . 1
1.1 Core JavaScript 4
1.2 Client-Side JavaScript 8
Part I. Core JavaScript
2. Lexical Structure . . .. . . . 21
2.1 Character Set 21
2.2 Comments 23
2.3 Literals 23
2.4 Identifiers and Reserved Words 23
2.5 Optional Semicolons 25
3. Types, Values, and Variables . . . . . . 29
3.1 Numbers 31
3.2 Text 36
3.3 Boolean Values 40
3.4 null and undefined 41
3.5 The Global Object 42
3.6 Wrapper Objects 43
3.7 Immutable Primitive Values and Mutable Object References 44
3.8 Type Conversions 45
3.9 Variable Declaration 52
3.10 Variable Scope 53
4. Expressions and Operators . . . . . . 57
4.1 Primary Expressions 57
4.2 Object and Array Initializers 58
4.3 Function Definition Expressions 59
4.4 Property Access Expressions 60
4.5 Invocation Expressions 61
4.6 Object Creation Expressions 61
4.7 Operator Overview 62
4.8 Arithmetic Expressions 66
4.9 Relational Expressions 71
4.10 Logical Expressions 75
4.11 Assignment Expressions 77
4.12 Evaluation Expressions 79
4.13 Miscellaneous Operators 82
5. Statements . . . . . . . 87
5.1 Expression Statements 88
5.2 Compound and Empty Statements 88
5.3 Declaration Statements 89
5.4 Conditionals 92
5.5 Loops 97
5.6 Jumps 102
5.7 Miscellaneous Statements 108
5.8 Summary of JavaScript Statements 112
6. Objects . . . . . . . . . 115
6.1 Creating Objects 116
6.2 Querying and Setting Properties 120
6.3 Deleting Properties 124
6.4 Testing Properties 125
6.5 Enumerating Properties 126
6.6 Property Getters and Setters 128
6.7 Property Attributes 131
6.8 Object Attributes 135
6.9 Serializing Objects 138
6.10 Object Methods 138
7. Arrays . . . . . . 141
7.1 Creating Arrays 141
7.2 Reading and Writing Array Elements 142
7.3 Sparse Arrays 144
7.4 Array Length 144
7.5 Adding and Deleting Array Elements 145
7.6 Iterating Arrays 146
7.7 Multidimensional Arrays 148
7.8 Array Methods 148
7.9 ECMAScript 5 Array Methods 153
7.10 Array Type 157
7.11 Array-Like Objects 158
7.12 Strings As Arrays 160
8. Functions . . . .. . . . 163
8.1 Defining Functions 164
8.2 Invoking Functions 166
8.3 Function Arguments and Parameters 171
8.4 Functions As Values 176
8.5 Functions As Namespaces 178
8.6 Closures 180
8.7 Function Properties, Methods, and Constructor 186
8.8 Functional Programming 191
9. Classes and Modules . . . . . 199
9.1 Classes and Prototypes 200
9.2 Classes and Constructors 201
9.3 Java-Style Classes in JavaScript 205
9.4 Augmenting Classes 208
9.5 Classes and Types 209
9.6 Object-Oriented Techniques in JavaScript 215
9.7 Subclasses 228
9.8 Classes in ECMAScript 5 238
9.9 Modules 246
10. Pattern Matching with Regular Expressions . . . 251
10.1 Defining Regular Expressions 251
10.2 String Methods for Pattern Matching 259
10.3 The RegExp Object 261
11. JavaScript Subsets and Extensions . . . . . 265
11.1 JavaScript Subsets 266
11.2 Constants and Scoped Variables 269
11.3 Destructuring Assignment 271
11.4 Iteration 274
11.5 Shorthand Functions 282
11.6 Multiple Catch Clauses 283
11.7 E4X: ECMAScript for XML 283
12. Server-Side JavaScript . . .. . . 289
12.1 Scripting Java with Rhino 289
12.2 Asynchronous I/O with Node 296
13. JavaScript in Web Browsers . . . . . 307
13.1 Client-Side JavaScript 307
13.2 Embedding JavaScript in HTML 311
13.3 Execution of JavaScript Programs 317
13.4 Compatibility and Interoperability 325
13.5 Accessibility 332
13.6 Security 332
13.7 Client-Side Frameworks 338
14. The Window Object . . . . . . . 341
14.1 Timers 341
14.2 Browser Location and Navigation 343
14.3 Browsing History 345
14.4 Browser and Screen Information 346
14.5 Dialog Boxes 348
14.6 Error Handling 351
14.7 Document Elements As Window Properties 351
14.8 Multiple Windows and Frames 353
15. Scripting Documents . . . . . . 361
15.1 Overview of the DOM 361
15.2 Selecting Document Elements 364
15.3 Document Structure and Traversal 371
15.4 Attributes 375
15.5 Element Content 378
15.6 Creating, Inserting, and Deleting Nodes 382
15.7 Example: Generating a Table of Contents 387
15.8 Document and Element Geometry and Scrolling 389
15.9 HTML Forms 396
15.10 Other Document Features 405
16. Scripting CSS . . . . . . . . 413
16.1 Overview of CSS 414
16.2 Important CSS Properties 419
16.3 Scripting Inline Styles 431
16.4 Querying Computed Styles 435
16.5 Scripting CSS Classes 437
16.6 Scripting Stylesheets 440
17. Handling Events . . .. . . . . . 445
17.1 Types of Events 447
17.2 Registering Event Handlers 456
17.3 Event Handler Invocation 460
17.4 Document Load Events 465
17.5 Mouse Events 467
17.6 Mousewheel Events 471
17.7 Drag and Drop Events 474
17.8 Text Events 481
17.9 Keyboard Events 484
18. Scripted HTTP . . . 491
18.1 Using XMLHttpRequest 494
18.2 HTTP by <script>: JSONP 513
18.3 Comet with Server-Sent Events 515
19. The jQuery Library . . . . . . . . . 523
19.1 jQuery Basics 524
19.2 jQuery Getters and Setters 531
19.3 Altering Document Structure 537
19.4 Handling Events with jQuery 540
19.5 Animated Effects 551
19.6 Ajax with jQuery 558
19.7 Utility Functions 571
19.8 jQuery Selectors and Selection Methods 574
19.9 Extending jQuery with Plug-ins 582
19.10 The jQuery UI Library 585
20. Client-Side Storage . . . . . . 587
20.1 localStorage and sessionStorage 589
20.2 Cookies 593
20.3 IE userData Persistence 599
20.4 Application Storage and Offline Webapps 601
21. Scripted Media and Graphics . .. 613
21.1 Scripting Images 613
21.2 Scripting Audio and Video 615
21.3 SVG: Scalable Vector Graphics 622
21.4 Graphics in a <canvas> 630
22. HTML5 APIs . . . . . . . . 667
22.1 Geolocation 668
22.2 History Management 671
22.3 Cross-Origin Messaging 676
22.4 Web Workers 680
22.5 Typed Arrays and ArrayBuffers 687
22.6 Blobs 691
22.7 The Filesystem API 700
22.8 Client-Side Databases 705
22.9 Web Sockets 712
Part III. Core JavaScript Reference
Core JavaScript Reference . . . . . . . 719
Part IV. Client-Side JavaScript Reference
Client-Side JavaScript Reference . .. . . . . 859
Index . . . . . . . . 1019
Introduction to JavaScript
JavaScript is the programming language of the Web. The overwhelming majority of
modern websites use JavaScript, and all modern web browsers—on desktops, game
consoles, tablets, and smart phones—include JavaScript interpreters, making Java-
Script the most ubiquitous programming language in history. JavaScript is part of the
triad of technologies that all Web developers must learn: HTML to specify the content
of web pages, CSS to specify the presentation of web pages, and JavaScript to specify
the behavior of web pages. 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, untyped interpreted programming language
that is well-suited to object-oriented and functional programming styles. JavaScript
derives its syntax from Java, its first-class functions from Scheme, and its prototypebased
inheritance from 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.
The name “JavaScript” is actually somewhat misleading. Except for a superficial syntactic
resemblance, JavaScript is completely different from the Java programming language.
And JavaScript has long since outgrown its scripting-language roots to become
a robust and efficient general-purpose language. The latest version of the language (see
the sidebar) defines new features for serious large-scale software development.
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Product details
Price
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|---|---|
File Size
| 6,618 KB |
Pages
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1098 p |
File Type
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PDF format |
ISBN
| 978-0-596-80552-4 |
Copyright
| 2011 David Flanagan |
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