Learn Advanced JavaScript Programming

Table of Contents

Index

<BODY> </BODY>, 43

<FORM> </FORM>, 470

<HEAD>...</HEAD>, 43, 57

<HTML> </HTML> tags, 43

<ILAYER> </ILAYER>, 808

<LAYER> </LAYER>, 808

<NOFRAMES> tag, 43

<NOSCRIPT> tag, 43

<SCRIPT> tag 37, 39, 46

<SELECT>...</SELECT>, 529

<TITLE> </TITLE>, 450

ABOVE, 812-813

abs(), 330

Acadia Infuse, 29

acos(), 334

action property, 475

alert boxes, 162

alert dialog box, 155

alert("expression"), 62

algorithm, 168

alinkColor, 462

alternate content, 43

anchor, 423, 424, 548

anchor object, 861

anchor() method, 548

anchors, 27

anchors array, 550

animation, 19

applet, “nervous text”, 789-792

applet, modifying, 789-795

applet object, 787-788, 861-862

applets, Java, 783-795

area event handlers, 551-556

area object, 862

area properties, 556

arguments array, 159-164, 165-166, 270-272

arguments object, 161

arguments.length property, 272

arithmetic methods, 330-334

arithmetic operators, 100

array methods, 257-270

array notation, 97, 239

array object, 256, 862-863

array properties, 256

arrays, 25, 247-280

creating dense, 252

creating simple, 248-249

elements of, 251

referring to elements, 250-252

types, 252-255

arrayType, 254

ASCII character set, 881-884

asin(), 335

assignment operators, 113-114

associative arrays, 276-280

get, 286-287

parse, 286-287

populating, 278-279

set, 286-287

splitting a string into, 279-280

to, 286-287

with constructor function, 278-279

with dot notation, 277

with square brackets, 276

associativeSplit() function, 279

atan(), 336

atan2(), 336

authoring tools, 839-844

back, 446

BACKGROUND, 813-814

banners, 398-413

N-banner, 410-413

R-banner, 403-410

T-banner, 398-403

base conversion, 77

base converter, 193-209

algorithm, 193-195

analysis, 199-208

output, 208-209

script, 195-198

base-2 logarithm of Euler’s constant, 328

BELOW, 812-813

bgColor, 454-455

BGCOLOR, 813-814

binary operators, 99

binding, 15

bitwise operators, 107-113

AND, 108-109

left shift, 111

NOT, 110-111

OR, 109

right shift, 112

shift, 111-113

XOR, 110

zero-fill right, 113

blur event, 489, 532

blur() method, 493-494

bodyDefinition(), 695

Boolean, 67

Boolean arrays, see arrays, types

Boolean expressions, 104

Boolean literals, 79-80

Boolean operators, 117

Boolean values, 89

border property, 600

border width, setting, 829

box math, 828

braces, finding matching, 844

break statement, 136, 142-144

browser, 443

choosing a, 36

detection of, 751-757

determining user’s, 753-754

redirecting, 754

using frames to display pages for 755-757

browser detection, 751-757

browser objects, 8-9, 387-391

creating, 388-389

browser window, 707

getting a handle for, 777

browsers, 4

browser-specific page redirection, 754

bug-preventing techniques, 852-854

building a script, 67

built-in objects, 93, 248

button objects, 507, 863

click event, 509

click() method, 511

name property, 511

value property, 511-515

calcNum(), 207

calendar, 310-321

calling deferred code from a script, 58-61

calling deferred code from event handlers, 61-62

calling deferred script from links and image maps, 62-65

calling object, 233-234

case sensitive, 45

ceil(), 331

CGI, 5-6

CGI programs, 3-4

CGI scripts, 3-4

change event, 489-490, 532

characteristics(x, y) function, 672-673

characters, 367

charAt(), 371-372

check box, 515-523

checkbox object, 515-523, 863-864

event handlers, 517

HTML syntax, 515-516

methods, 517-518

properties, 518-521

referencing, 516

checked property, 518-521, 528

checking if a value is a number, 380

checkMoveX(step) function, 658

checkMoveY() function, 659

checkWarp(startX, startY, endX, endY) function, 667

chop method, 257

class, 15

clearActive() function, 657

click() method, 511-517-518, 526-528

client-side image map, 553

client-side JavaScript scripts, 8, 433

CLIP, 812

Color Center

“control” frame, 698-699

example, 686-702

“main” frame, 702

“swatches” frame, 700-702

Frame-setting window, 688-692

Color Cube, 687

colors, 451-452

alinkColor, 462

bgColor, 452-455

display(triplet), 455-456

drawCell(red, green, blue), 456

drawCube(), 457-458

drawRow(red, blue), 456-457

drawTable(blue), 457

fade(sred, sgreen, sblue, ered, egreen, eblue, step), 460-461

fgColor, 461

linkColor, 462

setbgColor(red, green, blue), 460

toHex(dec), 459-460

vlinkColor, 462

comma, 71, 106

command blocks, 51-52, 83

nested, 52

commenting tags, 41

comments, 45

Common Gateway Interface, 3

communication, Java to JavaScript, 776-781

communication, JavaScript to Java, 781-805

compareFunction, 266

compiled program, 14

complete property, 601

complexWarp() function, 666-667

computeIndex() function, 630

concatenation operator, 105

condition, 138

conditional statement, 131, 135

constructor function, 231-235, 274-275

continue keyword, 145

continue statement, 145-146

control structures, 878

conventions, 44-45

convert(num, base1, base2), 205

converting from a specified base to decimal, 77-78

converting from decimal base to other bases, 77

convertInput(), 183

cookie-based counter example, 568-569

cookie-based reminder calendar example, 571-578

cookies, 27, 559-594

and HTTP, 560

and JavaScript, 564

client-side, 582

functions, 565-594

getting an HTTP, 562

setting an HTTP, 560-562

transaction sequence examples, 563-564

cos(), 334

creating a curve, 340-343

creating instances, 229-231

curAttribute(), 694

curly braces, 52, 87

custom objects, create, 843

customize your editor, 842

data streams, 463-465

data structures, 91

data tainting, 833

enabling, 834-835

specific, 835-836

data type operator, 121-123

data types, 67

data typing, 33

date constructor, parameters of, 283-385

date instance, 281-282

date method categories, 286-287

date numeric conventions, 285-286

date object, 25, 281-282, 283, 864-865

debugging, 29

debugging scripts, 845-855

debugging techniques, manual, 850-852

decimal integers, 76

declaration, 71

defaultCheck property, 521-522

defaultChecked property, 528-529

defaultValue property, 496-497

deferred code, calling 61-65

deferred script, 54, 58-65

destination document, 557

dialog boxes, 24, 127-129

alert, 127-128

confirm, 128

prompt, 129

digital clock, 302-307

example, 607-614

digital date, 307-309

digits array, 610

display(), 699

display(r, g, b), 692-693

display(triplet), 455-456

div(opl, op2), 200

document object, 26, 389, 449-465, 865-866

colors, 451-452

title property, 450-451

document property, 449

document.bgColor, 452

document.clear(), 464

document.close(), 464

document images array, 27

document.links, 556

document location (document.URL), 441-442

document.referrred property, 557

document.title, 450

document.write, 462

dot syntax, 96, 97

drag-&-drop, 840

drawBlank() function, 627-628

drawBlank(num), 343, 358

drawCal(), variables in, 317

drawCal(firstDay, lastDate, monthName, year), 317

drawCell(red, green, blue), 456

drawCube(), 457-458

drawCurve(), 362-363

drawCurve(lastDeg, jump), 347

drawDot(), 344

drawDot(x, y), 358

drawLetter(letter, startX) function, 628-629

drawLine(deg), 345

drawMessage(num) function, 630-632

drawRow(red, blue), 456-457

drawScreen() function, 655

drawSpace(startX) function, 630

drawTable(blue), 457

drawTable(lastNum), 206-207

dropLines() function, 670-671

dynamic objects, 15

E, 327

Electronic Mail (Mailto), 417

element, array item, 247

elements property, 476-479

else statement, 132-133

empty string concatenation, 375-377

emulating events via methods, 223-225

encipher(), 383-384

encode(str, key), 384

encoding property, 479

entitles, 65, 71-73

equal sign, 71

equality, 116

error handling, 222-223

error messages, 29, 846-850

errors, compiletime, 845

errors, runtime, 845

escape, 374

escape characters, 81

escape sequences, 81

Euler’s constant, 327

eval() function, 341, 741

evaluating a string, 741-743

evaluating text expressions, 381

evaluation, 84

testing, 85-86

window, 85

event actions, 213-214

event handlers, 24, 61, 62, 215, 703

calling explicitly, 225-227

calling, 551

creating, 240-242

list of, 215-216

onAbort, 215-223

onBlur, 215

onError, 219-221

onLoad, 219

onUnload, 219

using in a frame-setting document, 703-704

event methods, 224

events, 24, 211-228, 703

canceling, 227-228

error, 213

focus, 213

load, 213

mouseOut, 213

mouseOver, 213

select, 213

submit, 213

unload, 213

example of a simple game, 430-431

exp(), 331

expression, 75, 124

evaluating, 84

extendible objects, 243

external scripts, 37-38

factorial(a), 356

fade(sred, sgreen, sblue, ered, egreen, eblue, step), 460-461

fgColor, 461

File Transfer Protocol (FTP), 417

fileUpload object, 545-546-866

HTML syntax, 545

JavaScript access, 545

properties, 546

find matching brace, 844

floating point literals, 78-79

floating point numbers, 78, 120

flood(state) function, 668

floodBoard(startX) function, 630

floor(), 331-332

focus event, 489, 532

focus() method, 494

for statement, 137-139

for...in statement, 141-142

form, 467-546

form elements 19, 27

form name, 468

form object, 469-486, 867

element types, 481

event handlers, 470-473

HTML syntax, 469-470

methods, 473-474

properties, 475-486

form property, 484, 485-486

utilizing, 485-486

form reference, JavaScript, 467-468

form tags, 467

formReference.encoding, 479

forms array, 468

forms submission methods, 433-434

forward, 446

frame object, 876-877

frames, 27, 675-706

and JavaScript, 682

creating, 675-679

emulating events, 704

nested, 680-682

targeting multiple, 705

targeting,679-680

using event handlers within, 703

frames property, 685-686

Frame-setting window, 688-692

fullMap() function, 673

function, 58-59

compiling code as a, 744-749

specifying body, 745-746

function call, 88, 159, 743

function declaration, 87

function definition, 86

function object, 744, 867-868

properties of, 748-749

specifying arguments, 747

using with a variable, 746-747

using with an event handler, 747-748

function references, 743-744

function.Name.arguments arrays, 270-272

function.Name.arguments.length, 271

functions, 52-53, 67, 86-89, 158

argument array, 159-164

calling, 54, 88, 158

creating with default arguments, 164-166

defining, 54, 158

parameters, 158-166

returning a value, 166-167

general plotting utility, 347-364

get, 434

get methods, 287-294

get3DigitNum(num), 345

getAmpm() function, 614

getDays(month, year), 315

getDigit(val), 200-201

getHeight(sex, age, height), 183-185

getHour(place) function, 613

getInput() function, 360-361, 579

getInput(func, form) function, 738-739

getImput(num, monthName) function, 579-580

getList method, 257

getMinute(place) function, 613

getMonthName(month), 315

getNewLine(), 737

getPath(), 305

getPath(url), 614

getProps() function, 142, 249

getRadian(deg), 344

getRandom() function, 664-665

getRandom(max), 408

getSpecificReminder(num, monthName), 581

getSpot(deg), 344

getString(), 408-409

getTableAttributes(), 205-206

getTime(), 314

getVal(), 170

getValue(dig), 201-202

global variable, 149, 155

go, 446-447

Gopher Protocol(Gopher), 417

goto statements, 143

greater than character, 42, 527

grep method, 257-258

hash mark (#), 423, 425

hash, 423-426

height and weight calculator, 175-192

algorithm, 175

global statements, 190-191

output, 191-192

script, 176-182

height property, 601

Hello net. script, 46

helpers, 4

hexadecimal integers, 76-77, 78

hexadecimal notation, 107

hexadecimal triplets, 451

hexadecimal values, 107

hidden object, 506-507

accessing, 507

HTML syntax, 506

JavaScript access, 507

properties and methods, 507

hidden objects, 868

hiding the script, 41

hierarchy, object, 387

history list, 224, 443-444

history list entry indexing, 445-446

history list length, 445

history methods, 446-447

history object, 26, 390, 444, 868

security aspects, 447-448

host, 426-427

hostname, 427

Host-Specific File Names (File), 418

HREF attribute, 547

href, 419-422, 425

hspace property, 602

HTML, 3, 16, 23, 37, 51, 71-72, 697-698

extending, 3

HTML, editor, 740

HTML, elements, 481

HTML, formatting methods, 369-371

HTML, forms, 27, 211, 467

HTML, table, 55

HTML, tags, 3, 469

HyperText Transfer Protocol (HTTP), 416

hypertext, 62

identifiers, 69-70

if statement, 130-132

image map, 27, 548-549, 553-555

image object, 27, 869

creating an instance, 596-597

event handlers, 605-607

properties, 600-605

images, 27, 595

defining in HTML, 595

images array, 597-600

immediate script, 54

incrementing, 104

indexOf(), 372

inequality, 116

Infuse by Acadia, 839

inheritance of styles, 825

initCookie() function, 581

initCookie(monthName), 580-581

initial value, 156

initialExpression, 138

inline characters, 841

insertShape() function, 665-666

instances, 231, 234, 229, 230, 231, 281

integer literals, 76-78

integers, 76-78

internal scripts, 37

interpreted language, 18

isLine(y) function, 668-669

isNaN, 380

ISO Latin-1 character set, 374

ISO-8859-1 character set, 374

item(parent, text, depth), 589

Java, 5, 13-17

accessing directly, 782

checking enabling, 757

Java applets, 5, 16, 18

controlling, 783-795

Java byte code, 14

Java Console, 774

Java to JavaScript communication, 776-781

JavaScript and LiveAudio, 796-803

JavaScript,

authoring tools, 839-844

banners, 10

basic structure, 37-44

client-side, 8

comparing to Java, 13-17

conventions, 44-45

data types, 67

definition, 6

development, status, 17-18

digital clock, 12

form validation, 11

future of, 18

games, 9-10

history, 7-8

LED sign, 12

operators, 23, 99-126

printing output, 47

programming with, 23, 26

URLs, 26

uses for, 9-13, 19

JavaScript and LiveVideo, 803-805

JavaScript code, reusing, 842

JavaScript entities, 65

JavaScript exception, 781

JavaScript form reference, 467-468

JavaScript HTML Editor window, 726

new document, 728-737

source document, 724-725

JavaScript interpreter, 31

JavaScript methods, calling, 778-780

JavaScript object specification syntax, 861-880

JavaScript objects, instantiate, 841

JavaScript objects and properties, accessing, 778

JavaScript reference, 840

JavaScript statements (javascript), 418

JavaScript to Java communication, 781-805

join() method, 258-259

JSObject class, methods, 780

keywords, 82

LANGUAGE attribute, 37

lastIndexOf(), 373

layer object, 814-818, 869-870

properties, 814

layer object methods, 817

layers, 28, 807-822

defining, 808-814

introduction, 807-808

leapYear (year), 314-315

LED sign example, 614-633

LEFT, 809

length property, 533

letterArray() function, 627

link, 547-548

link event handlers, 551-556

link object, 870-871

link properties, 556

link() method, 547

linkColor, 462

links array, 549

links, 27, 63

literals, 75-81

Boolean, 79-80

floating point, 78-79

integer, 76-78

string, 80-81

LiveAudio, 766-771

LiveConnect, 16, 28, 773-806

enabling, 773

Netscape packages, 775

LiveConnect communication, 781

LiveScript, 7

LiveVideo, 771

LiveWire, 13

LN2, 327

LN10, 327

load(), 697

local variable, 149, 155, 171

location methods, 438-441

location object, 391, 418-419, 425

location properties, 419-433

location.hash, 424, 425

location.host, 426

location.hostname, 427

location.href, 421

location.reload, 438-440

location.search, 428-430

log base-10 of Euler’s constant, 328

log(), 332

LOG2E, 328

LOG10E, 328

logab(a,b), 356

logical AND, 118-119

logical NOT, 119

logical operators, 120-121

comma, 121

conditional, 120-121

short-circuit, 117-120

logical OR, 117-118

logical values, 79

loop statements, 137-146

break, 142-144

continue, 145-146

for, 137-139

for...in, 141-142

while, 139-140

with, 146-148

loosely typed, 15

lowsrc property, 602-603

main(), 364

mainInput(), 208

maintaining a state, 559

makeArray(length), 589

makeArray(min, max, dif), 362

makeAttribute(r, g, b), 693

makeDatabase(), 590

making statements, 82-83

margins, setting, 828-829

match game, 432

math, 325-365

math constants, 326-329

math examples, 340-364

math methods, 329-330

math object, 25, 325-326, 329-330, 871

Math.max, 359

mathematical operators, 99-105

addition, 100

decrement, 104-105

division, 101

increment, 102-104

integral division, 102

modulus, 101-102

multiplication, 100-101

subtraction, 100

mathematics, 25

math-related functions, 339-340

eval(), 341

parseFloat(), 340

parseInt(), 339-340

max(), min(), 332

MAX_VALUE, 337

METHOD attribute, 480

method property, 480

methods, 25, 95-96, 223

methods syntax, 96

Microsoft Internet Explorer, 8

MIME, 761

mimeTypes object, 761, 872

properties of, 762-764

MIN_VALUE, 338

mixed arrays, see arrays, types

mixed expression, 75

mixing strings and numbers, 74-75

moveX(step) function, 659-660

moveY() function, 661-662

multicharacter strings, 115

multidimensional arrays, creating, 273-276

multiengine search, 433

multitasking operating system, 17

multiword identifiers, 70

MUSIC function, 674

NAME, 808-809

name property, 498-500, 511, 522, 529, 534, 603

naming conventions, 70

NaN, 338

natural cursor positioning, 842

natural logarithm of 2, 327

natural logarithm of 10, 327

navigator object, 28, 752-753, 761, 872

navigator.userAgent, 753

N-banner, 410-413

NEGATIVE_INFINITY, 338

nested command blocks, 52

nested if-else statements, 133-137

nested objects, 236-242, 387

defining methods, 238-240

dot syntax, 236-237, 239

nested statements, 133

nested strings, 80

Netris Deluxe example, 633-674

Netscape, 7

Netscape color cube, 452

Netscape color names, 451

Netscape Navigator, 8, 36, 65

Netscape packages, 775-776

noActive() function, 668

null value, 67, 68, 249

num, 155

number arrays, see arrays, types

number methods, 339

number object, 337-339

MAX_VALUE, 337

MIN_VALUE, 338

NaN, 338

NEGATIVE_INFINITY, 338

numbers, 67

number-to-string conversion, 375-378

object, 25, 141

object arrays, see arrays, types

object based, 98

object hierarchy, 93, 94, 387-388

object map, HTML-generated, 857-859

object methods, 223

object oriented, 98

object paradigm, 98

object properties, defining, 231

object-based programming, 91

object-oriented programming, 15, 23, 32

objects, 91-92, 95, 229, 231

built-in, 93, 96

user-defined, 93

octal integers, 76, 78

onAbort event handler, 605-606

onBlur event, 215, 489, 532

onChange event, 489-490, 532, 551

onClick event, 515- 525-56

onError event handler, 219-221, 606

onFocus event, 490-493, 532

onLoad event handler, 219. 606-607

onMouseOut event handler, 552-553

onMouseOver event handler, 61, 552

onRest event handler, 472-473

onSelect event, 493

onSubmit event handler, 470-472

on Unload, 219

operation, 138

operations, 92

operator categories, 99

operator precedence, 123

operators, 23, 99-126, 878-879

assignment, 113-114

bitwise, 107-113

data type, 121-123

logical, 120-121

precedence, 123

relational, 115-117

short-circuit logical, 117-120

string, 105-107

void, 122

Option constructor, 542-544

option object, adding options, 542-545

options array

defaultSelected, 537

index property, 537

properties, 536-543

selected property, 537-539

text property, 539-541

value property, 541

options object, 534

outliner, 582-589

outliner script, 584-588

output methods and streams, 462-465

overflow, 78

padding size, setting, 829

page layout, 51

parameters, 87, 159

parent property, 683-684

parse methods, 298-299

parseFloat(), 340

parseInt(), 339-340

parseInt() and parseFloat(), 379-380

password object, 501-502, 875

access, 502

HTML syntax, 501

methods, 502

properties, 502

pathname, 427

pause() function, 673-674

percentile graph, 187

permanent variables, 152

PI, 328-329

pi, 329

pictorial album of U.S. presidents example, 818-821

placing JavaScript code, 43

placing scripts in documents, 54-57

play() function, 671-672

plugin object, 82

plug-in, accessing elements, 796

plug-in object, 28

determining installation of, 761-762

embedding in HTML, 759

referencing in JavaScript, 760

plugins object, 761

properties of, 764-765

plug-ins, 4, 28, 759-772

controlling, 796-805

pop method, 259-260

port, 427

POSITIVE_INFINITY, 339

post, 434

pow(), 332

power(op1, op2), 199

printDeg(deg), 345

printing JavaScript output, 47

printText() function, 53

printUnit(num), 362

programming style, 29-30

properties, 25, 93-95, 238

properties syntax, 94-95

protocol, 428

prototype, 242, 243

prototype and object extensions, 242-244

pull-down menu, 818, 821

push method, 260

quotes, 45, 80

radio button, 523-529

accessing, 525

radio object, 523-529, 872

event handlers, 525-526

HTML syntax, 523-524

JavaScript access, 524-525

methods, 526-528

properties, 528-529

random quotes, 321-323

random(), 333

R-banner, 403-410

reading examples, 30

recursion, 168-173

recursive algorithms, 168

recursive functions, 168-169, 171, 239-240

tracing values in, 170-171

variables and, 171

referring documents, 557

relational operators, 115-117

equality, 116

inequality, 116

reload() method, 438-440

remote document example, 723-725

remote windows, 28

remotes, 716-720

HTML-based, 716-718

JavaScript-based, 719-720

replace() method, 440-441

replaced elements, 828

replaceSpecialSequence(str), 358-359

reset object, 507, 863

reset() method, 474

return statement, 166, 167

returning a value, 166-167

reverse method, 260-261

root(a, b), 356

rotate() function, 667

round(), 333

roundoff error, 79

save(), 696

scope, 149, 151

Script Navigator, 839

scripts, deferred, 54, 56-57, 58-65

scripts, immediate, 54

scrollBanner(seed), 412-413

search, 428

search engines, 2, 3-4

search interface, 433, 435

search utilities, 433-438

security, 29, 831-837

e-mail address, 831-832

tainting, 833-834

URL to URL access, 832-833

select event, 493

select object, 529-545, 873

event handlers, 532-533

HTML syntax, 529-531

JavaScript access, 531

methods, 533

properties, 533-536

select() method, 494-496

select(r, g, b), 694

selectedIndex property, 535-536

self object, 682-683

semantical errors, 31

semicolon, 44

server-side applications, 13

set methods, 294-296

setbgColor(red, green, blue), 460

setCal() function, 316, 578

setClock() function, 305, 612

setImages(), 591-592

setLight(state, x, y) function, 628

setSpecificReminder(num, monthName, newValue), 581-582

setSquare(x, y, state) function, 657

setState(), 590-591

setStorage(), 593

shapeMap() function, 662-664

shift method, 261

shopping cart application, 559

short-circuit evaluation, 119

short-circuit logical operators, 117-120

showBanner(), 402-403, 409-410

side effects, 124-126

sin(), 335

sine curve, 341

smartX(x, y, step) function, 660-661

smartY(x, y) function, 662

sort() method, 226-269

source document, 557

spaces in strings, 106

splice method, 262-265

length, 262-263

offset, 262-263

split() method, 265-266, 279

splitFunc(func), 360

sqrt(), 333-334

SQRT1_2, 329

SQRT2, 329

square brackets, 87, 97

square root, 329

src property, 604

start() function, 669-670

startBanner(), 401-402

startSign() function, 632

startWizard(), 356-358

state(x, y) function, 656

statements

making, 82-83

multiple, 82-83

nested, 83

simple assignment, 83-84

static objects, 14-15

status bar, 26, 393-413

setting a default value, 397-398

writing to, 394-397

stopBanner(), 401

stopClock() function, 613

stopSign() function, 632

storage class, 149, 152, 153

string, 74, 105

spaces in, 106

string arrays, see arrays, types

string enciphering, 381-383

string handling examples, 381

encipher(), 383-384

encode(str, key), 384

string enciphering, 381-383

string indexing, 367

string instance construction, 377

string literals, 80-81

string methods, 371-374

string object, 255, 229, 279, 368, 874

length, 368-369

string operands, 115

string operators, 105-107

strings, 25-26, 67, 367

creating, 368

strings and numbers, mixing, 74-75

string-to-number conversion, 378-380

strongly typed, 15

style sheets, 28-29, 823-830

assigning styles, 825-827

border width, 829

box math, 828

context layout, 824

creating, 825-827

font properties, 824

format properties, 827-829

inheritance of styles, 825

margins, 828-829

padding size, 829

replaced elements, 828

text properties, 824

styles, defining classes of, 826-827

styles, defining with <STYLE> tag, 826

styles, specifying for elements, 826

submit object, 507, 863

submit() method, 473-474

subscript, 250

substring(), 373-374

swap() function, 541

switch statement workaround, 136-137

syntax, 94, 96

syntax errors, 31

taint accumulator, 836-837

taint codes, 836

tainting, 29, 833-837

tan(), 335-336

TARGET attribute, 480

target property, 480-481, 556

T-banner, 398-403

temporary variables, 152

testing equality, 120

testing your script, 854

Tetris game, 633-652

text editor, 35, 46

text object, 487-501, 875

event handlers, 489-493

HTML syntax, 487-488

JavaScript access, 488

methods, 493-496

properties, 496-501

text properties, 824

textarea object, 503-506, 875

handling by line, 505-506

HTML syntax, 503-504

inserting new line characters, 504-505

JavaScript access, 504

this, 231-235

using with event handlers, 481485

this keyword, 235

this properties, 232

time and date examples, 302-323

calendar, 310-321

digital clock, 302-307

digital date, 307-309

time-related methods, 299-302

clearTimeout(), 301-302

setTimeout(), 299-300

title property, 450-451

to methods, 297

toGMTString(), 297

toLocaleString(), 297

toBase(num, base), 202-203

toDec(num, base), 203-204

toggle(num), 592-593

toHex(dec), 459-460

top property, 685

TOP, 809

topmost objects, 389-391

toString() method, 377-378

trailing quote, 80

trigonometric methods, 334-336

two-dimensional arrays, 274

type conversion, 73-75

type property, 481

unary operators, 99

underflow, 78

unescape, 374-375

Universal Resource Locator, 62

unshift method(), 269-270

update(), 695-696

update() functions, 612

updating a page, 48

URL (Uniform Resource Locator), 62, 415

crash course, 415-418

general syntax, 415-416

schemes, 416-417

syntax, 418

Usenet News (News), 417-418

user agent, 753

user interaction, 19

user-defined object, 93, 146, 244

value, 166

value property, 500-501, 511-515, 522-523, 529

var, 149-151, 156, 157

var keyword, 71

variable, 141

variable declaration, 70-71

variable name, 70

variable scope, 149, 153, 157

variable scoping, 24

variable values, 154

variables, 68-71, 84, 89, 247

global, 149, 155

local, 155

permanent, 152

temporary, 152

vertical() function, 739-740

VISIBILITY, 813

vlinkColor, 462

void operator, 122

vspace property, 604

warp(startX, startY, endX, endY) function, 669

Web page, 3

Web page authoring tools, 22

Web surfers, 2-3, 6

while loops, 140

while statement, 139-140

WIDTH, 810-811

width property, 605

window object, 147, 387, 389, 449, 708, 876-877

window.history object, 444

window.open() method, 708-713

IE 3.0 bug workaround, 714

windows, 28, 707-739

accessing objects example, 726-740

algorithm for opening, 721

closing, 721-722

names, 715

opening with JavaScript, 708713

referencing, 715

remotes, 716

scrolling, 723

with statement, 146-148

World Wide Web, 1-2

competition on the, 1

search engines, 2

World Wide Web Consortium (W3C), 823

write and writeln, 462-463

WWW, 62

X axis, 345-355

your first script, 46

yVal(xVal), 361

Z-INDEX, 812-813

What's on the CD?

The CD included with this book contains the html source for all examples referred to throughout the book. GIF files with graphics for these examples are also included. The goal in adding these examples is to let you cut and paste applicable examples so you can quickly reuse them during your JavaScript learning experience, and long after that.

The CD contains several subdirectories located off the root directory. The directories are organized by examples, a separate directory for each example. A directory’s name is identical to that of the appropriate example in the book. Directory ex25-2, for example, includes all relevant material for example ex25-2, which is the second example in Chapter 25. Inside each directory are the html sources and, if applicable, gif files. Directory ex25-2, for example, includes the source code ex25-2.htm and the gif files 10.gif, 11.gif, 12.gif, 13.gif, 14.gif, 15.gif, and 16.gif.

These examples can be used in various ways. The easiest way is to just copy them to your hard disk and load them with your favorite browser. Your learning will much improve if you get hands-on experience running the book’s examples. Once you master these examples, you can start to change them. Copy source codes to different files and play around with the JavaScript code. Be sure to test your creations from time to time, so you will be able to easily return to your last working version.

Acadia Infuse software package is also included for your convenience. It allows you to visually create JavaScript code, prepare and store reusable JavaScript code, etc. This package is described in the book.

Table of Contents