How To Do Everything with JavaScript

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ISBN: 9780072228878 | 0072228873
Cover: Paperback
Copyright: 3/17/2003

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This friendly, solutions-oriented guide is filled with step-by-step examples that illustrate how to write basic to advanced JavaScript applications, as well as modify existing scripts to suit individual needs. Each chapter begins with the specific how-to topics that will be covered. Within the chapter, each topic is accompanied by a solid, easy-to-follow walkthrough of the process.

Acknowledgments

Introduction

xvii

PART I Learn JavaScript Basics

Prepare to Program in JavaScript

(22)

Learn the History of JavaScript

(3)

The Origin of JavaScript

(1)

JavaScript Makes Its Way into Internet Explorer

(1)

JavaScript Becomes an Official Standard

(1)

Where JavaScript Is Today

(1)

Choose a Development Environment

(6)

Develop JavaScript-Enabled Web Pages

(1)

Create Server-Based Web Applications

(1)

Use JavaScript in a DOS or Windows Environment

(1)

JavaScript Development Tools

(4)

Learn What JavaScript Can and Cannot Do

(2)

Use JavaScript as a Client-Side Language

(1)

Use JavaScript as a Server-Side Language

(1)

Decide Which Version of JavaScript to Use

(1)

Test JavaScript Programs Using HTML

(3)

Create a JavaScript Template

(2)

Understand the JavaScript Template

(1)

Communicate with the User

(3)

Display an Alert Message

(1)

Write Text to the Browser Window

(1)

Learn More about Topics Discussed in this Chapter

(3)

Learn JavaScript Fundamentals

(38)

Understand Basic Terminology

(1)

Store Data in Variables

(3)

Define Variables

(1)

Define Constants

(1)

Understand Program Flow

(1)

Control Program Flow with Statements

(19)

Execute Code Conditionally

(4)

Repeat Statements Using Loops

(9)

Comment Your Code

(1)

Set a Default Object

(2)

Handle Errors

(3)

Understand the Basics of Expressions

(1)

Use Operators to Create Complex Expressions

(1)

Organize Your Code into Functions

(8)

Define Functions

(2)

Accept Parameters

(2)

Understand Variable Scope

(2)

Return Values

(1)

Use the Improvements in JavaScript 2.0 to Create More Powerful Functions

(4)

Use Named Optional Parameters

(1)

Accept Any Number of Parameters

(2)

Use Built-in JavaScript Classes

(32)

Learn about Objects in JavaScript

(5)

Write Unstructured Programs

(1)

Organize Code into Procedures

(1)

Separate a Program into Modules

(1)

Use the Object-Oriented Approach

(2)

Turn Properties and Functions into a Class

(1)

JavaScript's Built-in Classes and Data Types

(4)

Instantiate an Object with the new Operator

(1)

Access an Object with the Operator

(1)

Access an Object with the [] Operator

(1)

Create a String Object in JavaScript

(5)

Create a String Object Using a String Literal

(2)

Create a String Object Using the String Data Type

(1)

Use the String Object's Built-in Functionality

(2)

Perform Mathematical Functions

(1)

Apply JavaScript's Date-Handling Functions

(3)

Convert Strings into Numbers

(2)

Use the parseInt and parseFloat Functions

(2)

Prepare Text Before Sending to Web Server

(2)

Use the escape and unescape Functions

(1)

Decide When to Use Regular Expressions

(5)

Understand the Basics of Regular Expressions

(2)

Create Patterns with a RegExp Object

(2)

Understand JavaScript 2.0's Powerful New Data Types

(4)

Use the Boolean, Integer, and Number Data Types

(1)

Use the char Data Type

(1)

Use the Object Data Type

(1)

Understand Special Data Types

(3)

Organize Data into Arrays

(22)

Create an Array Object

(7)

Create an Empty Array

(2)

Specify an Initial Array Length

(1)

Create and Initialize an Array in One Line of Code

100

(1)

Use Array Literals

100

(1)

Call the Properties and Methods of the Array Object

101

(3)

Set and Retrieve Values in an Array

104

(3)

Use Multidimensional Arrays

107

(10)

Use JavaScript 2.0's Enhanced Arrays

111

(1)

The StaticArray Class

112

(2)

The DynamicArray Class

114

(1)

The ConstArray Class

114

(3)

Create Your Own JavaScript Classes

117

(24)

Learn about Classes in JavaScript

118

(1)

Create Objects in JavaScript 1.x

118

(8)

Call a Constructor Function

119

(3)

Use an Object Literal

122

(1)

Extend an Existing Class

123

(2)

Extend an Existing Object

125

(1)

Create Objects in JavaScript 2.0

126

(15)

Define Your Own Classes

127

(3)

Organize Classes Using Inheritance

130

(5)

Choose Between Static and Instance Members

135

(1)

Make Class Members Public or Private

136

(5)

PART II Build JavaScript-Enabled Web Sites

Embed JavaScript in a Web Page

141

(20)

Understand Basic HTML Structure

142

(11)

Build an HTML Document

145

(1)

Indicate the Document Type with <!DOCTYPE>

146

(1)

Add a Title and Define Document Keywords

147

(1)

Format Text with HTML Elements

148

(2)

Format Text with Style Sheets

150

(3)

Use <script> to Add JavaScript to a Web Page

153

(1)

Use <noscript> for Browsers That Don't Support Scripting

154

(3)

Load an External JavaScript File

157

(1)

Call JavaScript Using Hyperlinks

158

(1)

Learn More about the Topics in this Chapter

159

(2)

Create Scripts That Work in Every Browser

161

(18)

Understand Browser Differences

162

(8)

What Kind of Errors Can Occur?

163

(1)

Detect What Type of Browser the User Is Running

164

(5)

Query the Document Model

169

(1)

Stick to Web Standards

170

(1)

Write Cross-Browser Code

171

(8)

Manipulate Web Forms

179

(28)

Understand HTML Forms

180

(20)

Request User Input Using an HTML Form

181

(1)

Process Form Input with Client-Side JavaScript

182

(1)

Process Form Input on a Web Server

183

(1)

Insert an HTML Form into a Web Page

184

(16)

Retrieve and Set Form Control Values in JavaScript

200

(7)

Access Form Values Using the forms Array

200

(2)

Access Form Values Using the elements Array

202

(2)

Access Form Values Using getElementById()

204

(1)

Access Form Values Using getElementsByName()

204

(1)

Access Form Values Using getElementsByTagName()

205

(2)

Handle Browser Events

207

(16)

Write JavaScript Event Handlers

208

(10)

Handle User Interface Events

209

(2)

Handle Mouse Events

211

(1)

Handle Key Events

212

(3)

Handle HTML Events

215

(3)

Handle Events Using the Event Property

218

(1)

Trigger Events in JavaScript

219

(1)

Call the Method Associated with an Event

219

(1)

Use the fireEvent Method

220

(1)

Overcome Browser Incompatibility

220

(3)

Communicate Between Browser Frames

223

(20)

Learn the Basics of HTML Frames

224

(11)

Create a Frameset in HTML

225

(8)

Define and Name Frames in a Frameset

233

(2)

Call JavaScript Functions from Other Frames

235

(4)

Access Another Frame Using JavaScript

236

(1)

Call a JavaScript Function Located in Another Frame

237

(2)

Handle Synchronization Between Frames

239

(4)

Interact with the Web Browser

243

(16)

Learn the Basics of the Document Object Model

245

(3)

Manipulate the Contents of a Web Page

248

(4)

Dynamically Modify the Contents of a Web Page

249

(2)

Change the Items in a Drop-Down List Box

251

(1)

Examine the Entire Browser Window

252

(2)

Retrieve Properties of the Web Browser Software

254

(2)

Examine the Operating System's Display Settings

256

(1)

Access the Web Browser History List

257

(1)

Send the Browser to a New Location

258

(1)

Perform Simple Animation

259

(22)

Learn the Basics of Cascading Style Sheets

260

(14)

Assign Style to Web Pages Using HTML Elements

261

(3)

Assign Style to Web Pages Using Style Sheets

264

(4)

Use Basic Style Attributes

268

(1)

Position Elements on a Web Page

268

(2)

Modify Styles Using JavaScript

270

(2)

Understand Cross-Platform Issues

272

(2)

Perform Basic Animation Using JavaScript

274

(7)

Dynamically Load Images

274

(2)

Make Content Move Around the Screen

276

(5)

PART III Take JavaScript to the Next Level

Debug JavaScript Programs

281

(14)

Understand the Possible Causes of Errors

282

(5)

Find the Source of an Error Message

284

(1)

Interpret Error Messages

285

(2)

Use a JavaScript Validator

287

(1)

Add Debugging Code to Your Programs

287

(3)

Use the JavaScript Console

290

(1)

Use a JavaScript Debugger

291

(4)

Make Your Program Errorproof

295

(18)

Learn the Basics of Exceptions

296

(1)

Catch Exceptions Using the try and catch Statements

297

(7)

Understand Exception Bubbling

299

(2)

Use the IE Error Object

301

(1)

Use Netscape-Only catch Clauses

302

(1)

Use Nonstandard finally Clauses

302

(2)

Create Exceptions Using the throw Statement

304

(2)

Design Programs That Are Easy to Debug from the Start

306

(3)

Avoid Unstructured Programming

307

(1)

Break Code into Manageable Chunks

307

(1)

Reuse Code Using Classes and Objects

308

(1)

Test Your JavaScript Code Thoroughly

309

(4)

Create a Testing Harness

309

(2)

Force Errors to Test Error-Handling Code

311

(1)

Try Your Program in Many Different Environments

312

(1)

Use JavaScript to Manage Browser Plug-Ins

313

(14)

Insert Scriptable Objects into HTML Web Pages

315

(1)

Include Sun Java Applets

315

(6)

Connect to Java Applets Using JavaScript

319

(2)

Embed Movies and Music in Web Pages

321

(3)

Connect to Music and Media Objects Using JavaScript

322

(2)

Use the Microsoft Calendar Control in Your Web Pages

324

(3)

Appendix A HTML 4.01 Tags

327

(4)

Appendix B JavaScript Quick Reference

331

(4)

Index

335

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How To Do Everything with JavaScript

Summary

Author Biography

Table of Contents

Supplemental Materials