javascript

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■ CONTENTS viii Sharing a Prototype but Forgoing the Chain ...................................................................................... 163 Adding an Empty Chain Link .............................................................................................................. 166 Stealing a Constructor ....................................................................................................................... 169 Prototypal Inheritance ................................................................................................. 171 Cloning Members ........................................................................................................ 174 Mixins .......................................................................................................................... 176 Summary ..................................................................................................................... 179 ■Chapter 6: Functions and Arrays ....................................................................... 181 Why Use Functions? .................................................................................................... 181 Functions Are Values .................................................................................................. 183 Function Members ...................................................................................................... 184 Conditional Advance Loading ...................................................................................... 185 Writing Object.defineProperty() .......................................................................................................... 186 Writing Object.defineProperties() ....................................................................................................... 187 Writing Object.create() ....................................................................................................................... 188 Using the new Functions .................................................................................................................... 189 Lazy Loading ............................................................................................................... 194 Recursion .................................................................................................................... 198 Borrowing Methods with apply() or call() .................................................................... 201 Overriding toString() ........................................................................................................................... 201 Testing for an Array ........................................................................................................................... 204 Rewriting cloneMembers() ................................................................................................................. 206 Currying ...................................................................................................................... 208 Chaining Methods ....................................................................................................... 212 Closure and Returning Functions ................................................................................ 216 Passing a Configuration Object ................................................................................... 222 Callback Functions ...................................................................................................... 223 Memoization ............................................................................................................... 224
Global Abatement with Modules ................................................................................. 226 Arrays .......................................................................................................................... 228 Plucking Elements from an Array ....................................................................................................... 229 Adding Elements to an Array .............................................................................................................. 233 Gluing Two Arrays Together ............................................................................................................... 235 Reversing the Elements in an Array ................................................................................................... 237 Sorting the Elements in an Array ....................................................................................................... 238 Creating a String from an Array ......................................................................................................... 243 Taking a Slice of an Array .................................................................................................................. 244 Converting a Read-only Array-like Object to an Array ....................................................................... 245 Inserting or Deleting Elements from an Array .................................................................................... 249 Summary ..................................................................................................................... 253 ■Chapter 7: Traversing and Modifying the DOM Tree ......................................... 255 DOM Tree .................................................................................................................... 255 Is Every Node the Same? ................................................................................................................... 256 Interfaces Are Sensibly Named .......................................................................................................... 257 Querying the DOM Tree ...................................................................................................................... 257 Same Jargon as for a Family Tree ..................................................................................................... 260 Traversing the DOM Tree ................................................................................................................... 260 Descending with childNodes .............................................................................................................. 260 Ascending with parentNode ............................................................................................................... 262 Muddying the Waters with Whitespace ............................................................................................. 263 Coding Cascade Style ........................................................................................................................ 264 Moving Laterally ................................................................................................................................. 268 Converting a NodeList to an Array ..................................................................................................... 271 Converting a NodeList to an Array for Internet Explorer .................................................................... 273 Traversing the DOM without childNodes ............................................................................................ 275 Finding an Element by ID ................................................................................................................... 277 Finding Elements by Their Tag Names ............................................................................................... 278 Finding Elements by Class ................................................................................................................. 279 ■ CONTENTS ix
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 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
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CHAPTER 2 ■ TYPE CONVERSION 44 pr
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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 70 • If b
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CHAPTER 3 ■ OPERATORS 72 The impo
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CHAPTER 3 ■ OPERATORS 74 tartar:
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CHAPTER 3 ■ OPERATORS 76 } }; pur
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CHAPTER 3 ■ OPERATORS 78 saigonCi
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CHAPTER 3 ■ OPERATORS 82 loganber
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CHAPTER 3 ■ OPERATORS 92 tartar:
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CHAPTER 3 ■ OPERATORS 94 fridge.y
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CHAPTER 3 ■ OPERATORS 96
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CHAPTER 4 ■ CONTROLLING FLOW 98 s
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CHAPTER 4 ■ CONTROLLING FLOW 100
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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 310 var
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CHAPTER 8 ■ SCRIPTING CSS 312 tex
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CHAPTER 8 ■ SCRIPTING CSS 314 Fig
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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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■ INDEX 462 parsing an XML respon
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■ INDEX 464 creating, 217 queryin
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■ INDEX 466 document.styleSheets,
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■ INDEX 468 listening for mousedo
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■ INDEX 470 chaining prototypes,
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■ INDEX 472 definition of, 255 de
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■ INDEX 474 ■ P padJSON(), 445
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■ INDEX 476 ten.js, 401 ternary o
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