JavaScript权威指南(第6版英文

JavaScript权威指南(第6 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 vii版