实例介绍
【实例简介】Javascript The Definitive Guide(6th Edition 2011)
【实例截图】
【核心代码】
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
vii4.4 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
viii | Table of Contents7.11 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
Table of Contents | ixPart II. Client-Side JavaScript
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
x | Table of Contents17.2 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
Table of Contents | xi22.5 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
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