JavaScript Demystified / Edition 1

by Jim Keogh

Overview

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Even if you have no programming experience, you'll learn to create dynamic, interactive Web pages with help from this easy-to-use, self-teaching guide. Author and programming instructor Jim Keogh covers the basics of this leading Web development language and explains how to write cross-browser JavaScript programs in no time.

Product Details

ISBN-13:	9780072261349
Publisher:	McGraw Hill LLC
Publication date:	05/26/2005
Series:	Demystified
Pages:	375
Product dimensions:	7.30(w) x 9.10(h) x 0.81(d)

About the Author

Jim Keogh (Ridgefield Park, NJ) is on the faculty of Columbia University and Saint Peter's College in Jersey City, New Jersey. He developed the e-commerce track at Columbia University. Keogh has spent decades developing applications for major Wall Street corporations and is the author of more than 60 books, including J2EE: The Complete Reference, Java Demystified, ASP.NET Demystified, Data Structures Demystified, XML Demystified, and others in the Demystified series.

Table of Contents

	Introduction	xv
Chapter 1	An Inside Look at JavaScript	1
	Answers to Common Questions About JavaScript	2
	JavaScript: A Limited-Featured Programming Language	3
	Getting Down to JavaScript	4
	Object Name	4
	Property	5
	Methods	5
	The Dot Syntax	6
	The Main Event	6
	Writing Your First JavaScript	7
	"Old Timers" Don't Like JavaScript	10
	Spicing Up Your JavaScript	11
	Looking Ahead	12
	Quiz	12
Chapter 2	Variables, Operators, and Expressions	15
	Values and Variables	16
	Values	16
	Variables	17
	Operators and Expressions	24
	Parts of an Expression	24
	Multiple Operations	24
	Types of Operators	25
	Looking Ahead	40
	Quiz	40
Chapter 3	Condition Statements	43
	if Statement	45
	The if Statement in Action	45
	The if...else Statement	46
	The if...else if Statement	48
	Other Variations of the if Statement	52
	Nested if Statement	53
	Identifying a Browser	55
	switch...case Statement	58
	Loop Statement	62
	The for Loop	62
	The for in Loop	66
	The while Loop	68
	The do...while Loop	70
	continue	71
	Looking Ahead	72
	Quiz	73
Chapter 4	Arrays	75
	What Is an Array?	75
	Declaring an Array	76
	Initializing an Array	77
	Defining Array Elements	78
	How Many Elements Are in the Array?	79
	Looping the Array	80
	Adding an Array Element	82
	Sorting Array Elements	83
	Making a New Array from an Existing Array	84
	Combining Array Elements into a String	87
	Changing Elements of the Array	90
	Looking Ahead	91
	Quiz	92
Chapter 5	Functions	95
	What Is a Function?	96
	Defining a Function	96
	Writing a Function Definition	98
	Adding Arguments	99
	The Scope of Variables and Arguments	100
	Calling a Function	101
	Calling a Function Without an Argument	102
	Calling a Function with an Argument	103
	Calling a Function from HTML	104
	Functions Calling Another Function	108
	Returning Values from a Function	109
	Looking Ahead	113
	Quiz	114
Chapter 6	Strings	117
	Why Manipulate a String?	117
	Joining Strings	118
	Finding Your Way Around a String	120
	Dividing Text	123
	Copying a Substring	125
	Converting Number and Strings	129
	Numbers to Strings	130
	Changing the Case of the String	131
	Strings and Unicode	132
	Looking Ahead	132
	Quiz	133
Chapter 7	Forms and Event Handling	135
	Building Blocks of a Form	136
	Elements and JavaScript	136
	Responding to Form Events	137
	Form Objects and Elements	141
	Time-Saving Shortcut	143
	Changing Attribute Values Dynamically	144
	Changing Elements Based on a Value Selected by the User	146
	Changing an Option List Dynamically	148
	Evaluating Check Box Selections	151
	Manipulating Elements Before the Form Is Submitted	153
	Using Intrinsic JavaScript Functions	155
	Changing Labels Dynamically	156
	Disabling Elements	159
	Read-Only Elements	161
	Looking Ahead	162
	Quiz	163
Chapter 8	Cookies	165
	Cookie Basics	166
	Creating a Cookie	167
	Reading a Cookie	169
	Setting the Expiration Date	171
	Deleting a Cookie	172
	Personalizing an Experience Using a Cookie	174
	Looking Ahead	176
	Quiz	176
Chapter 9	Browser Windows	179
	Open the Window, Please!	180
	Giving the New Window Focus	182
	Placing the Window into Position on the Screen	184
	Changing the Contents of a Window	186
	Closing the Window	187
	"Magically" Scrolling a Web Page	190
	Opening Multiple Windows at Once	191
	Creating a Web Page in a New Window	192
	Looking Ahead	195
	Quiz	196
Chapter 10	Regular Expressions	199
	What Is a Regular Expression?	200
	The Language of a Regular Expression	201
	Finding Nonmatching Characters	204
	Entering a Range of Characters	205
	Matching Digits and Nondigits	205
	Matching Punctuation and Symbols	206
	Matching Words	206
	Replace Text Using a Regular Expression	207
	Replacing Like Values	208
	Return the Matched Characters	209
	The Telephone Number Match	210
	Regular Expression Object Properties	213
	Looking Ahead	214
	Quiz	215
Chapter 11	JavaScript and Frames	217
	You've Been Framed!	218
	Invisible Borders	220
	Calling a Child Window's JavaScript Function	222
	Changing the Content of a Child Window	223
	Changing the Focus of a Child Window	226
	Writing to a Child Window from a JavaScript	226
	Accessing Elements of Another Child Window	228
	Looking Ahead	228
	Quiz	229
Chapter 12	Rollovers	231
	Setting the Stage	232
	Creating a Rollover	234
	Text Rollovers	237
	Multiple Actions for a Rollover	239
	More Efficient Rollovers	243
	Looking Ahead	245
	Quiz	245
Chapter 13	Getting Your Message Across: The Status Bar, Banners, and Slideshows	249
	Making Magic Using the Status Bar	250
	Building a Static Message	250
	Changing the Message Using Rollovers	253
	Moving the Message Along the Status Bar	256
	Banner Advertisements	268
	Loading and Displaying Banner Advertisements	268
	Linking Banner Advertisements to URLs	271
	Creating a Slideshow	273
	Looking Ahead	275
	Quiz	276
Chapter 14	Protecting Your Web Page	279
	Hiding Your Code	280
	Disabling the Right Mouse Button	280
	Hiding Your JavaScript	283
	Concealing Your E-mail Address	286
	Looking Ahead	288
	Quiz	288
Chapter 15	Menus	291
	Creating a Pull-Down Menu	292
	Dynamically Changing a Menu	294
	Validating Menu Selections	296
	Creating DHTML Menus	298
	Floating Menu	299
	Chain Select Menu	299
	Tab Menu	300
	Popup Menu	300
	Highlighted Menu	301
	Folding Tree Menu	301
	Microsoft Outlook Bar Style Menu	302
	Context Menu	303
	Scrollable Menu	303
	Side Bar Menu	304
	Slide-In Menu	304
	Looking Ahead	305
	Quiz	306
Chapter 16	DHTML	309
	What Is DHTML?	310
	Learning DHTML	310
	Cascading Style Sheets	311
	Using DHTML Code	313
	Generic Drag	313
	LCD Clock All	316
	Watermark Background Image	319
	Tabbed Document Viewer Using iframe	319
	Daily iframe Content	323
	Cross-Browser Marquee	325
	Popup Calendar	325
	Drop-In Content Box	325
	Ad Box	326
	Quiz	327
	Appendix	329
	Final Exam	333
	Answers to Quizzes and Final Exam	349
	Index	361