javascript

Recommendations

Info

CHAPTER 3 ■ OPERATORS 88 Figure 3–21. Determining whether all five comparisons are true Let’s make && happy and change the third comparison “not less than” to “less than.” As Figure 3–22 displays, since all five comparisons are true, overall the && chain returns true. Hurray! var muffin = { oatFlour: [1/3, "cup"], barleyFlour: [1/3, "cup"], pastryFlour: [1 + 1/3, "cup"], freshlyGroundNutmeg: [1/4, "tsp"], saigonCinnamon: [1/2, "tsp"], seaSalt: [1/4, "tsp"], soda: [1, "tsp"], tartar: [1, "tsp"], mapleBrownCow: [1 + 1/2, "cup"], boysenberries: [2, "cup"], choppedPecans: [1/3, "cup"] }; muffin.mapleBrownCow[0] < muffin.boysenberries[0] && muffin.oatFlour[0] === muffin.barleyFlour[0] && muffin.freshlyGroundNutmeg[0] < muffin.saigonCinnamon[0] && muffin.choppedPecans[0] muffin.barleyFlour[0]; // true
Figure 3–22. Since all five comparisons are true, overall the && chain returns true. Chaining || and && Expressions CHAPTER 3 ■ OPERATORS Note that && has a priority of 5 while || has a priority of 4. So in the following sample, JavaScript evaluates the two && expressions prior to the two || expressions. Therefore, as Figure 3–23 illustrates, by the time JavaScript does the || operations, the comparison has been simplified to false || true || muffin.pastryFlour < muffin.barleyFlour. So, it’s not necessary for JavaScript to evaluate the final < comparison. var muffin = { oatFlour: [1/3, "cup"], barleyFlour: [1/3, "cup"], pastryFlour: [1 + 1/3, "cup"], freshlyGroundNutmeg: [1/4, "tsp"], saigonCinnamon: [1/2, "tsp"], seaSalt: [1/4, "tsp"], soda: [1, "tsp"], tartar: [1, "tsp"], mapleBrownCow: [1 + 1/2, "cup"], boysenberries: [2, "cup"], choppedPecans: [1/3, "cup"] }; muffin.mapleBrownCow[0] < muffin.boysenberries[0] && muffin.oatFlour[0] === muffin.barleyFlour[0] || muffin.freshlyGroundNutmeg[0] < muffin.saigonCinnamon[0] && muffin.choppedPecans[0]
Page 1:
THE EXPERT’S VOICE ® IN WEB DEVE
Page 4 and 5:
ii JavaScript for Absolute Beginner
Page 6 and 7:
iv Contents at a Glance ■Contents
Page 8 and 9:
■ CONTENTS vi ■Chapter 2: Type
Page 10 and 11:
■ CONTENTS viii Sharing a Prototy
Page 12 and 13:
■ CONTENTS x Querying Attributes
Page 14 and 15:
■ CONTENTS xii Getting the User
Page 16 and 17:
■ CONTENTS xiv About the Technica
Page 18 and 19:
■ PREFACE xvi Preface In the 2005
Page 20 and 21:
■ PREFACE xviii Opening Firebug L
Page 22 and 23:
■ PREFACE xx Now press Return on
Page 24 and 25:
■ PREFACE xxii editor reappear. N
Page 26 and 27:
■ PREFACE xxiv
Page 28 and 29:
CHAPTER 1 ■ REPRESENTING DATA WIT
Page 30 and 31:
Page 32 and 33:
Page 34 and 35:
Page 36 and 37:
Page 38 and 39:
Page 40 and 41:
Page 42 and 43:
Page 44 and 45:
Page 46 and 47:
Page 48 and 49:
Page 50 and 51:
Page 52 and 53:
CHAPTER 2 ■ TYPE CONVERSION 26 Fi
Page 54 and 55:
Page 56 and 57:
CHAPTER 2 ■ TYPE CONVERSION 30 St
Page 58 and 59:
CHAPTER 2 ■ TYPE CONVERSION 32 De
Page 60 and 61:
Page 62 and 63:
CHAPTER 2 ■ TYPE CONVERSION 36 wa
Page 64 and 65: CHAPTER 2 ■ TYPE CONVERSION 38
Page 66 and 67: CHAPTER 2 ■ TYPE CONVERSION 40 Fi
Page 70 and 71: CHAPTER 2 ■ TYPE CONVERSION 44 pr
Page 76 and 77: CHAPTER 2 ■ TYPE CONVERSION 50 Co
Page 80 and 81: CHAPTER 2 ■ TYPE CONVERSION 54 To
Page 84 and 85: CHAPTER 3 ■ OPERATORS 58 Remember
Page 86 and 87: CHAPTER 3 ■ OPERATORS 60 Using Ja
Page 88 and 89: CHAPTER 3 ■ OPERATORS 62 dough.po
Page 90 and 91: CHAPTER 3 ■ OPERATORS 64 mincedLe
Page 92 and 93: CHAPTER 3 ■ OPERATORS 66 Figure 3
Page 94 and 95: CHAPTER 3 ■ OPERATORS 68 // 1.25
Page 96 and 97: CHAPTER 3 ■ OPERATORS 70 • If b
Page 98 and 99: CHAPTER 3 ■ OPERATORS 72 The impo
Page 100 and 101: CHAPTER 3 ■ OPERATORS 74 tartar:
Page 102 and 103: CHAPTER 3 ■ OPERATORS 76 } }; pur
Page 104 and 105: CHAPTER 3 ■ OPERATORS 78 saigonCi
Page 108 and 109: CHAPTER 3 ■ OPERATORS 82 loganber
Page 118 and 119: CHAPTER 3 ■ OPERATORS 92 tartar:
Page 120 and 121: CHAPTER 3 ■ OPERATORS 94 fridge.y
Page 122 and 123: CHAPTER 3 ■ OPERATORS 96
Page 124 and 125: CHAPTER 4 ■ CONTROLLING FLOW 98 s
Page 126 and 127: CHAPTER 4 ■ CONTROLLING FLOW 100
Page 164 and 165:
CHAPTER 4 ■ CONTROLLING FLOW 138
Page 166 and 167:
Page 168 and 169:
Page 170 and 171:
Page 172 and 173:
CHAPTER 5 ■ MEMBER INHERITANCE 14
Page 174 and 175:
Page 176 and 177:
Page 178 and 179:
Page 180 and 181:
Page 182 and 183:
Page 184 and 185:
Page 186 and 187:
Page 188 and 189:
Page 190 and 191:
Page 192 and 193:
Page 194 and 195:
Page 196 and 197:
Page 198 and 199:
Page 200 and 201:
Page 202 and 203:
Page 204 and 205:
Page 206 and 207:
Page 208 and 209:
CHAPTER 6 ■ FUNCTIONS AND ARRAYS
Page 210 and 211:
Page 212 and 213:
Page 214 and 215:
Page 216 and 217:
Page 218 and 219:
Page 220 and 221:
Page 222 and 223:
Page 224 and 225:
Page 226 and 227:
Page 228 and 229:
Page 230 and 231:
Page 232 and 233:
Page 234 and 235:
Page 236 and 237:
Page 238 and 239:
Page 240 and 241:
Page 242 and 243:
Page 244 and 245:
Page 246 and 247:
Page 248 and 249:
Page 250 and 251:
Page 252 and 253:
Page 254 and 255:
Page 256 and 257:
Page 258 and 259:
Page 260 and 261:
Page 262 and 263:
Page 264 and 265:
Page 266 and 267:
Page 268 and 269:
Page 270 and 271:
Page 272 and 273:
Page 274 and 275:
Page 276 and 277:
Page 278 and 279:
Page 280 and 281:
Page 282 and 283:
CHAPTER 7 ■ TRAVERSING AND MODIFY
Page 284 and 285:
Page 286 and 287:
Page 288 and 289:
Page 290 and 291:
Page 292 and 293:
Page 294 and 295:
Page 296 and 297:
Page 298 and 299:
Page 300 and 301:
Page 302 and 303:
Page 304 and 305:
Page 306 and 307:
Page 308 and 309:
Page 310 and 311:
Page 312 and 313:
Page 314 and 315:
Page 316 and 317:
Page 318 and 319:
Page 320 and 321:
Page 322 and 323:
Page 324 and 325:
Page 326 and 327:
Page 328 and 329:
Page 330 and 331:
Page 332 and 333:
Page 334 and 335:
CHAPTER 8 ■ SCRIPTING CSS 308 Rem
Page 336 and 337:
CHAPTER 8 ■ SCRIPTING CSS 310 var
Page 338 and 339:
CHAPTER 8 ■ SCRIPTING CSS 312 tex
Page 340 and 341:
CHAPTER 8 ■ SCRIPTING CSS 314 Fig
Page 342 and 343:
CHAPTER 8 ■ SCRIPTING CSS 316 We
Page 344 and 345:
CHAPTER 8 ■ SCRIPTING CSS 318 Don
Page 346 and 347:
Page 348 and 349:
CHAPTER 8 ■ SCRIPTING CSS 322 Exp
Page 350 and 351:
CHAPTER 8 ■ SCRIPTING CSS 324 fun
Page 352 and 353:
CHAPTER 8 ■ SCRIPTING CSS 326 One
Page 354 and 355:
CHAPTER 8 ■ SCRIPTING CSS 328 } L
Page 356 and 357:
CHAPTER 8 ■ SCRIPTING CSS 330 •
Page 358 and 359:
CHAPTER 8 ■ SCRIPTING CSS 332 ins
Page 360 and 361:
Page 362 and 363:
CHAPTER 8 ■ SCRIPTING CSS 336 Why
Page 364 and 365:
Page 366 and 367:
CHAPTER 8 ■ SCRIPTING CSS 340 Ref
Page 368 and 369:
Page 370 and 371:
CHAPTER 8 ■ SCRIPTING CSS 344 } }
Page 372 and 373:
CHAPTER 8 ■ SCRIPTING CSS 346
Page 374 and 375:
CHAPTER 9 ■ LISTENING FOR EVENTS
Page 376 and 377:
Page 378 and 379:
Page 380 and 381:
Page 382 and 383:
Page 384 and 385:
Page 386 and 387:
Page 388 and 389:
Page 390 and 391:
Page 392 and 393:
Page 394 and 395:
Page 396 and 397:
Page 398 and 399:
Page 400 and 401:
Page 402 and 403:
Page 404 and 405:
Page 406 and 407:
Page 408 and 409:
Page 410 and 411:
Page 412 and 413:
Page 414 and 415:
Page 416 and 417:
Page 418 and 419:
Page 420 and 421:
Page 422 and 423:
Page 424 and 425:
Page 426 and 427:
CHAPTER 10 ■ SCRIPTING BOM 400 Ne
Page 428 and 429:
CHAPTER 10 ■ SCRIPTING BOM 402 }
Page 430 and 431:
Page 432 and 433:
CHAPTER 10 ■ SCRIPTING BOM 406 fu
Page 434 and 435:
CHAPTER 10 ■ SCRIPTING BOM 408 Du
Page 436 and 437:
CHAPTER 10 ■ SCRIPTING BOM 410 In
Page 438 and 439:
CHAPTER 10 ■ SCRIPTING BOM 412 Wr
Page 440 and 441:
Page 442 and 443:
CHAPTER 10 ■ SCRIPTING BOM 416 va
Page 444 and 445:
Page 446 and 447:
CHAPTER 10 ■ SCRIPTING BOM 420 Sw
Page 448 and 449:
Page 450 and 451:
CHAPTER 10 ■ SCRIPTING BOM 424 Te
Page 452 and 453:
Page 454 and 455:
CHAPTER 10 ■ SCRIPTING BOM 428 Ca
Page 456 and 457:
Page 458 and 459:
CHAPTER 10 ■ SCRIPTING BOM 432 })
Page 460 and 461:
Page 462 and 463:
Page 464 and 465:
Page 466 and 467:
CHAPTER 10 ■ SCRIPTING BOM 440 cr
Page 468 and 469:
CHAPTER 10 ■ SCRIPTING BOM 442 No
Page 470 and 471:
CHAPTER 10 ■ SCRIPTING BOM 444 No
Page 472 and 473:
Page 474 and 475:
CHAPTER 10 ■ SCRIPTING BOM 448 {
Page 476 and 477:
Page 478 and 479:
CHAPTER 10 ■ SCRIPTING BOM 452 "u
Page 480 and 481:
CHAPTER 10 ■ SCRIPTING BOM 454 se
Page 482 and 483:
CHAPTER 10 ■ SCRIPTING BOM 456 sp
Page 484 and 485:
Page 486 and 487:
Page 488 and 489:
■ INDEX 462 parsing an XML respon
Page 490 and 491:
■ INDEX 464 creating, 217 queryin
Page 492 and 493:
■ INDEX 466 document.styleSheets,
Page 494 and 495:
■ INDEX 468 listening for mousedo
Page 496 and 497:
■ INDEX 470 chaining prototypes,
Page 498 and 499:
■ INDEX 472 definition of, 255 de
Page 500 and 501:
■ INDEX 474 ■ P padJSON(), 445
Page 502 and 503:
■ INDEX 476 ten.js, 401 ternary o
Page 504 and 505:
■ INDEX 478
show all

javascript

Create successful ePaper yourself

Delete template?

Save as template?