Jumping JavaScript

Jumping JavaScript 的封面图片

Jumping JavaScript

TITLE_DISPLAY:

Jumping JavaScript

个人著者:

Winsor, Janice.

出版信息:

Mountain View, Calif. : Sun Microsystems Press, 1997.

格式:

图书

系列:

Sunsoft Press Java series.

Java series (Mountain View, Calif.)

物理描述:

xl, 1173 p. : ill. , 24 cm. + 1 computer laser optical disc (4 3/4 in.).

题名主题:

主题词汇:

JavaScript (Computer program language)

Java (Computer program language)

HTML (Document markup language)

World Wide Web.

附加著者:

Freeman, Brian, 1965-

ISBN:

9780138419417

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摘要

摘要

This combined book and CD-ROM pack presents the background to the evolution of JavaScript, and the problems it is intended to solve. The package offers detailed coverage of developing user interface elements, and linking them to actions. It also shows techniques for manipulating text and handling mathematical and statistical results.

目录

Preface

Acknowledgments

I Getting Started

1 Introducing the JavaScript Language

The JavaScript Language

JavaScript-Enabled Browsers

Client-Side JavaScript

Server-Side JavaScript

The Internet

Network Protocols

IP Addresses

Domains

The World Wide Web

How the World Wide Web Works

Helper Applications

Plug-ins

Java Applets

Summary of New Terms and Concepts

2 Introducing the Scripting Environment

Hello World Tradition

Scripting Terminology

Understanding the Elements of the Hello World Script

JavaScript and HTML

Embedding a Script

Adding Text for Non-JavaScript Browsers

Loading a Script File

Adding JavaScript Comments

Adding HTML Comments

Displaying Text

Using the Basic Template

Immediate Activation Template

Deferred Activation

Recommended Programming Style Guide

General Comments and Rules

Comments

Code Indentation

White Space

Statements

Comparisons

Identifier Style (Variable, function, and object name choices)

Variables

Functions

Objects

Source Files (.js Files to be Included in a Script)

Looking at the Script-Writing Process

Creating the Hello World Script

Running the Hello World Script

Summary of New Terms and Concepts

3 Introducing General Scripting Concepts

Data Types

Variables

Identifiers

White Space

Literal Values

Declaring a Variable

Assigning a Value to a Variable

Initializing a Variable

Functions

Operators

Precedence

Mathematical Operators

Expressions

Statements

Summary of New Terms and Concepts

4 Debugging Scripts

Syntax Errors

Design or Logic Errors

HTML Layout and Script Parsing Order

Operator Precedence

JavaScript Error Messages

Function does not always return a value

identifier is a reserved word

missing ) after argument list

missing }} after function body

missing ; after for-loop condition

missing ; after for-loop initializer

nested comment

out of memory

something cannot be indexed as an array

something has no properties

something is not defined

something is not a function

something is not a numeric literal

syntax error

unterminated string literal

Some Debugging Tips and Tricks

Using Netscape JavaScript Protocol to Debug Statements

Using Alerts to Set Breakpoints

String Formatting Tip

Looking at Object Properties

Debugging Checklist

Summary of New Terms and Concepts

II Creating HTML Pages

5 Introducing Objects

Object Properties

Object Methods

Referencing Object Properties and Methods

Events

Object-Manipulation Statements

The this Keyword

The for...in Statement

The with Statement

The new Statement

Built-in Objects

Summary of New Terms and Concepts

6 Creating Windows

Displaying a Status Message

Example of status and defaultStatus Properties

Explanation of Example Script

Example of status and defaultStatus Properties with a Timeout

Controlling the Structure of a Window

The frames Property

The length Property

Referring to a Window

Examples of frame and Window Naming Properties

Explanation of Example Scripts

A Three-Frame Window Example

Referencing document, history, and location Objects in a Window

Example of Referencing document, history, and location Objects

Opening a New Window

Examples of open() Method

Finding Which Window Is the Opener

Example of window.opener Property

Using the unescape() Function to Reformat Location Values

Determining the State of a Newly Opened Window

Example of Using the closed Property

Displaying Informational Messages in an Alert Window

Example of the alert( ) Method

Explanation of the windowAlert.html Script

Closing a Window

Example of the close() Method

Displaying a Confirmation Message

Example of confirm() Method

Prompting Users for Input

Example of prompt() Method

Controlling the Input Focus in Windows

Example of blur() and focus() Methods

Using Event Handlers to Control Window Focus

Example of onBlur and onFocus Event Handlers

Moving Around within a Window

Example of scroll() Method

Using Timeouts

Example of Timeouts in a Script

Using Event Handlers on Load and Unload

Example of onLoad and onUnload Event Handlers

Using an Event Handler to Capture Interpreter Error Messages

Example of Capturing and Displaying Error Messages

Explanation of windowOnerrorHandler.html Script

Example of Hiding Error Messages

Summary of New Terms and Concepts

7 Creating Documents

Controlling Document Colors

Example of Setting Document Colors

Extracting Title, Location, Modification, and Document Referrer Information for a Document

Example of Displaying All of the Properties of a Document

Example of Comparison of location and URL Document Properties

Example of Finding Where a Document Came From

Working with the anchors Property

Example of Using a Named Anchor

Example of an Anchor That Is Also a Link

Example of a Link to Another Window

Example of Using Anchors to Move Around in a Document

Example of Using the Anchors Array

Working with the links Property

Example of Using the links Property

Referencing Forms in a Document

Example of Referencing Forms in a Document

Referencing Images in a Document

Example of Using the Images Array

Referencing Java Applets in a Document

Example of Including a Java Applet

Finding Plug-ins Embedded in a Document

Example of Counting Plug-Ins

Finding the Document Domain

Example of Finding the Document Domain

Storing User-Generated Information: the cookie Property

Limitations of the cookie Property

Example of Creating a cookie Property

Writing into a Document

Opening, Closing, and Clearing a Document

Example of Document Methods

Summary of New Terms and Concepts

8 Controlling History

Displaying history Properties

Determining the Number of URL Links

Example of the history.length Property

Navigating the History List

Example of history.forward() and history.back() Methods

Example of Using Images with forward and back Methods

Example of history.go() Method

Data Tainting and History Properties

Example of current, previous, and next Properties

Extracting Information from the History List

Example of toString() Method

Summary of New Terms and Concepts

9 Working with Images

Using the src Property

Example of Using image.src to Substitute Images

Prestaging Images with the lowsrc Property

Example of Prestaging Big Images with Low-Resolution Files

Checking If an Image Has Completed Loading

Example of Checking If an Image Has Completed Loading

Using Read-Only Image Properties

Example of Displaying Image Properties

Using the Image Constructor

Example of Using the Image Constructor

Example of Animation Script

Using the onLoad Event Handler

Using the onLoad Event Handler to Display an Alert

Using the onLoad Event Handler to Create a Slide Show

Using the onLoad Event Handler to Change the Image Source

Getting into Trouble with the onLoad Event Handler

Planning for Error Handling

Using the onError Event Handler to Catch Errors

Planning for the Stopping of Image Loading

Using the onAbort Event Handler When Users Click on the Stop Button

10 Embedding Java Applets in Your Web Page

Applet Files

Downloading the JDK

Running the Java Compiler

Run

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