Core JavaScript Guide

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About this Book

New Features in this Release
What You Should Already Know
JavaScript Versions
Where to Find JavaScript Information
Document Conventions

Chapter 1 JavaScript Overview

What Is JavaScript?
JavaScript and Java
JavaScript and the ECMA Specification

Relationship Between JavaScript and ECMA Versions
JavaScript Documentation vs. the ECMA Specification
JavaScript and ECMA Terminology

New Features in this Release

Part 1 Core Language Features

Chapter 2 Values, Variables, and Literals

Values

Data Type Conversion

Variables

Declaring Variables
Evaluating Variables
Variable Scope

Constants
Literals

Array Literals
Boolean Literals
Floating-Point Literals
Integers
Object Literals
String Literals

Unicode

Unicode Compatibility with ASCII and ISO
Unicode Escape Sequences
Displaying Characters with Unicode

Chapter 3 Expressions and Operators

Expressions
Operators

Assignment Operators
Comparison Operators
Arithmetic Operators
Bitwise Operators
Logical Operators
String Operators
Special Operators
Operator Precedence

Chapter 4 Regular Expressions

Creating a Regular Expression
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

Changing the Order in an Input String
Using Special Characters to Verify Input

Chapter 5 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

The throw Statement
The try...catch Statement

Chapter 6 Functions

Defining Functions
Calling Functions
Using the arguments Array
Predefined Functions

eval Function
isFinite Function
isNaN Function
parseInt and parseFloat Functions
Number and String Functions
escape and unescape Functions

Chapter 7 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

Chapter 8 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

Part 2 Working with LiveConnect

Chapter 9 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

Glossary

Index

Index     Next     

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Copyright © 2000 Netscape Communications Corp. All rights reserved.

Last Updated September 28, 2000