javascript

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■ INDEX 468 listening for mousedown events on any element of the drag class, 383 listening while an event descends or ascends the DOM tree, 347 move(), 375–379 nine.css, code listing, 349 nine.html, code listing, 348 nine.js, 348 node parameter, 352 NodeSelector interface, 358 parseInt(), 367, 376 phase parameter, 352 prepDrag(), 383–384, 395 prepSkinKeys(), 391, 395 prepSprites(), 365, 367–370, 372, 384, 395 preventDefault(), 353–354 preventing an event from traversing the DOM tree, 355 queryCascade(), 362–363, 367 querying CSS values from the cascade, 362 querySelector(), 358–359, 362 querySelectorAll(), 358–362 removeEventListener(), 353, 380 removeListener(), 353, 380 slideSprite(), 365, 367–368, 370, 372 split(), 366 stopPropagation(), 355 style.backgroundPosition, 365 swapSkinByKey(), 391, 393 telling JavaScript to stop listening for an event, 353 thwart(), 354–355, 377, 382 toLowerCase(), 391 traverseTree(), 356–357 type parameter, 352 window.event, 347, 368, 371 window.event.srcElement, 368 working with the event object, 347 wrapper.style.left, 378 wrapper.style.top, 378 wrapping a script in a self-invoking function literal, 395 writing the mousedown event listener, 375 writing the mousemove event listener, 378 writing the mouseup event listener, 380 See also Browser Object Model (BOM); DOM; nodes; objects expression for a value, definition of, 4 extend(), 166–169, 171, 185, 190–192 ■ F filterDefaultAttrNodes(), 287 findClass(), 358, 365, 383, 407 code listing, 280, 360 findIndex(), 327–328, 332 findRule(), 323–324, 326–327 firebug.html, 2 firstChild, 270 for in loop enumerating the members of an object, 127 enumerating unknown object members, 136 shoes code example, 127 syntax of, 127 See also conditional statements; looping statements for loop comma operator and initialization expressions, 126 iterating over an array, 125 techniques for running faster, 140 theFall code example, 125 See also conditional statements; looping statements fridge code example, 102 fromCharCode(), 29, 31, 391 fuchsia.css, 350 functions () operator, 221, 226, 239 aborting a loop with return rather than break, 120 apply(), 201, 204–205 arguments, 20 arguments.callee, 200 borrowing methods, 201 caching return values to a closure, 224 call(), 201, 204–205 callback function, 223 clone(), 226 cloneMembers(), 206
closures, 217 conditional advance loading, 185 conditionally changing a function value while it’s running, 194 curly braces and, 21, 217 currying, 208 definition of, 20 eliminating global variables, 226 exploring functions as values, 183 expressing first-class functions with literals, 183 function declaration, 183 function invocation, definition of, 97 function keyword, 20 function literals, creating, 19 function scope, 183, 217 Function.prototype.bind(), 208–209 Function.prototype.constructor, 184 Function.prototype.toString(), 184 global abatement with modules, 226 inheriting members from Object.prototype, 184 invoking a function by its name, 183 isArray(), 201, 204–205 lazy loading, 194 memoization, 224 methods, chaining, 212 new ECMAScript 5 static methods, list of, 185 parameters, 20 passing a configuration object rather than separate parameters, 222 rankFlavor(), 21 recursive functions, 198 scope chain, 217 testing for an array, 204 this, 212 toString(), 201–203 traverseTree(), 200 See also methods; recursion ■ G getAttribute(), 437 getComputedStyle(), 335–336, 362, 366, 370 getCookie(), 401–403 getData(), 425, 427–428, 430, 432, 436 getElementById(), 277 getElementsByClassName(), 360 W3 online documentation for, 362 getElementsByTagName(), 278, 359, 433 getPropertyValue(), 309 global abatement, 226 global variables, eliminating, 226 greater than (>) operator, 75 greater than or equal to (>=) operator, 80 green.css, 350 grouping () operator, 70 ■ H HTMLDivElement, 257 HTMLElement, 257, 281 HTMLStyleElement, 282 ■ I identifiers, definition of, 6 identity (===) operator, 69 if statement ?: operator, 105 addToTally(), 98 else clause, 100 else if idiom, 103 fridge code example, 102 kmLeftToLive(), 98 mayfly code example, 98 returning undefined, 100 syntax of, 98 wrapping in curly braces, 101 writing an if condition, 98 See also conditional statements; looping statements @import, 322, 326–327, 340, 343 in operator, 94 increment (++) operator, 66 index, 15 indexOf(), 35, 401–402 infinite loop, 116 inheritance adding an empty chain link, 166 apply(), 169 ■ INDEX 469
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THE EXPERT’S VOICE ® IN WEB DEVE
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ii JavaScript for Absolute Beginner
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iv Contents at a Glance ■Contents
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■ CONTENTS vi ■Chapter 2: Type
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■ CONTENTS viii Sharing a Prototy
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■ CONTENTS x Querying Attributes
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■ CONTENTS xii Getting the User
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■ CONTENTS xiv About the Technica
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■ PREFACE xvi Preface In the 2005
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■ PREFACE xviii Opening Firebug L
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■ PREFACE xx Now press Return on
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■ PREFACE xxii editor reappear. N
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■ PREFACE xxiv
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CHAPTER 1 ■ REPRESENTING DATA WIT
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CHAPTER 2 ■ TYPE CONVERSION 26 Fi
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CHAPTER 2 ■ TYPE CONVERSION 30 St
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CHAPTER 2 ■ TYPE CONVERSION 50 Co
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CHAPTER 2 ■ TYPE CONVERSION 54 To
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CHAPTER 3 ■ OPERATORS 58 Remember
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CHAPTER 3 ■ OPERATORS 60 Using Ja
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CHAPTER 3 ■ OPERATORS 62 dough.po
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CHAPTER 3 ■ OPERATORS 64 mincedLe
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CHAPTER 3 ■ OPERATORS 66 Figure 3
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CHAPTER 3 ■ OPERATORS 68 // 1.25
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CHAPTER 3 ■ OPERATORS 78 saigonCi
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CHAPTER 3 ■ OPERATORS 96
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CHAPTER 4 ■ CONTROLLING FLOW 98 s
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CHAPTER 5 ■ MEMBER INHERITANCE 14
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CHAPTER 6 ■ FUNCTIONS AND ARRAYS
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CHAPTER 7 ■ TRAVERSING AND MODIFY
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CHAPTER 8 ■ SCRIPTING CSS 308 Rem
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CHAPTER 8 ■ SCRIPTING CSS 322 Exp
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CHAPTER 8 ■ SCRIPTING CSS 336 Why
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CHAPTER 8 ■ SCRIPTING CSS 340 Ref
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CHAPTER 8 ■ SCRIPTING CSS 344 } }
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CHAPTER 8 ■ SCRIPTING CSS 346
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CHAPTER 9 ■ LISTENING FOR EVENTS
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Page 496 and 497: ■ INDEX 470 chaining prototypes,
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