JavaScript 1.5 核心指引

From MDC

目录 1 关于本指引 2 JavaScript 概览 3 语言的核心特征 4 Expressions and Operators 5 正则表达式 6 Statements 7 Functions 8 Working with Objects 9 Details of the Object Model 10 LiveConnect Overview

[编辑] 关于本指引

JavaScript 1.5 之新特性

JavaScript 后续版本新特性

你应有何所知

JavaScript 版本

JavaScript 资讯何寻

文档协定

[编辑] JavaScript 概览

何为 JavaScript?

JavaScript 与 Java

JavaScript 与 ECMA 脚本规范

JavaScript 与ECMA 版脚本之关联

JavaScript 文档对比 ECMA 脚本规范

JavaScript 与 ECMA 脚本术语

[编辑] 语言的核心特征

Values

Data Type Conversion

Variables

Declaring Variables

Evaluating Variables

Variable Scope

Global Variables

Constants

Literals

Array Literals

Boolean Literals

Floating-Point Literals

Integers

Object Literals

String Literals

Unicode

Unicode Compatibility with ASCII and ISO

Unicode Escape Sequences

Unicode characters in JavaScript files

Displaying Characters with Unicode

[编辑] Expressions and Operators

Expressions

Operators

Assignment Operators

Comparison Operators

Arithmetic Operators

Bitwise Operators

Logical Operators

String Operators

Special Operators

Operator Precedence

[编辑] 正则表达式

创建一个正则表达式

Writing a Regular Expression Pattern

Using Simple Patterns

Using Special Characters

Using Parentheses

Working with Regular Expressions

Using Parenthesized Substring Matches

Executing a Global Search, Ignoring Case, and Considering Multiline Input

Examples

[编辑] Statements

Block Statement

Conditional Statements

if...else Statement

switch Statement

Loop Statements

for Statement

do...while Statement

while Statement

label Statement

break Statement

continue Statement

Object Manipulation Statements

for...in Statement

with Statement

Comments

Exception Handling Statements

throw Statement

try...catch Statement

[编辑] Functions

Defining Functions

Calling Functions

Using the arguments Object

Predefined Functions

eval Function

isFinite Function

isNaN Function

parseInt and parseFloat Functions

Number and String Functions

escape and unescape Functions

[编辑] Working with Objects

Objects and Properties

Creating New Objects

Using Object Initializers

Using a Constructor Function

Indexing Object Properties

Defining Properties for an Object Type

Defining Methods

Using this for Object References

Defining Getters and Setters

Deleting Properties

Predefined Core Objects

Array Object

Boolean Object

Date Object

Function Object

Math Object

Number Object

RegExp Object

String Object

[编辑] Details of the Object Model

Class-Based vs. Prototype-Based Languages

Defining a Class

Subclasses and Inheritance

Adding and Removing Properties

Summary of Differences

The Employee Example

Creating the Hierarchy

Object Properties

Inheriting Properties

Adding Properties

More Flexible Constructors

Property Inheritance Revisited

Local versus Inherited Values

Determining Instance Relationships

Global Information in Constructors

No Multiple Inheritance

[编辑] LiveConnect Overview

Working with Wrappers

JavaScript to Java Communication

The Packages Object

Working with Java Arrays

Package and Class References

Arguments of Type char

Handling Java Exceptions in JavaScript

Java to JavaScript Communication

Using the LiveConnect Classes

Data Type Conversions

JavaScript to Java Conversions

Java to JavaScript Conversions