JavaScript Examples Bible - UserWorks Technologies

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Chapter 1 ✦ Generic HTML Element Objects (Chapter 15) Control Panel ”Bubble”-type click listener: ”Capture”-type click listener: Examine click event characteristics: appendChild(elementObject) NN2 NN3 NN4 NN6 IE3/J1 IE3/J2 IE4 IE5 IE5.5 Compatibility ✓ ✓ ✓ Example Scripts in Listing 15-21 demonstrate how the three major child-related methods work in IE5+ and NN6. The page includes a simple, two-item list. A form enables you to add items to the end of the list or replace the last item with a different entry. 55 elementObject.appendChild()
56 JavaScript Examples Bible: The Essential Companion to JavaScript Bible The append() function creates a new LI element and then uses the appendChild() method to attach the text box text as the displayed text for the item. The nested expression, document.createTextNode(form.input.value), evaluates to a legitimate node that is appended to the new LI item. All of this occurs before the new LI item is added to the document. In the final statement of the function, appendChild() is invoked from the vantage point of the UL element — thus adding the LI element as a child node of the UL element. Invoking the replaceChild() method in the replace() function utilizes some of the same code. The main difference is that the replaceChild() method requires a second parameter: a reference to the child element to be replaced. This demonstration replaces the final child node of the UL list, so the function takes advantage of the lastChild property of all elements to get a reference to that final nested child. That reference becomes the second parameter to replaceChild(). Listing 15-21: Various Child Methods appendChild(), removeChild(), and replaceChild() Methods function append(form) { if (form.input.value) { var newItem = document.createElement(“LI”) newItem.appendChild(document.createTextNode(form.input.value)) document.getElementById(“myUL”).appendChild(newItem) } } function replace(form) { if (form.input.value) { var newItem = document.createElement(“LI”) var lastChild = document.getElementById(“myUL”).lastChild newItem.appendChild(document.createTextNode(form.input.value)) document.getElementById(“myUL”).replaceChild(newItem, lastChild) } } function restore() { var oneChild var mainObj = document.getElementById(“myUL”) while (mainObj.childNodes.length > 2) { oneChild = mainObj.lastChild mainObj.removeChild(oneChild) } } Child Methods Here is a list of items: First Item elementObject.appendChild()
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100% ONE HUNDRED PERCENT COMPREHENS
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“An excellent book that builds so
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JavaScript Examples Bible: The Ess
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About the Author Danny Goodman is t
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Preface Acommon thread running thro
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Preface Listing numbers are derived
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Acknowledgments Because most of the
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Contents Preface. . . . . . . . . .
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Contents Chapter 7: The Form and Re
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Contents Chapter 15: The NN4 Layer
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192 FRAME.scrolling JavaScript Exam
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196 FRAMESET.cols JavaScript Exampl
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198 IFRAME.align JavaScript Example
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200 IFRAME.src JavaScript Examples
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192 FRAME.scrolling JavaScript Exam
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196 FRAMESET.cols JavaScript Exampl
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198 IFRAME.align JavaScript Example
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200 IFRAME.src JavaScript Examples
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234 document.height JavaScript Exam
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236 document.layers JavaScript Exam
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254 document.write() JavaScript Exa
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Body Text Objects (Chapter 19) The
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Note Chapter 5 ✦ Body Text Object
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Chapter 5 ✦ Body Text Objects (Ch
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width Chapter 5 ✦ Body Text Objec
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commonAncestorContainer Chapter 5
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Methods cloneContents() cloneRange(
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extractContents() Chapter 5 ✦ Bod
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var count = form.deleteCount.value
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inRange(otherRangeRef) Chapter 5
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TextRectangle Object Properties bot
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Image, Area, and Map Objects (Chapt
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Chapter 6 ✦ Image, Area, and Map
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dynsrc Chapter 6 ✦ Image, Area, a
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nameProp Chapter 6 ✦ Image, Area,
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start x y Chapter 6 ✦ Image, Area
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} Chapter 6 ✦ Image, Area, and Ma
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The Form and Related Objects (Chapt
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Chapter 7 ✦ The Form and Related
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length Chapter 7 ✦ The Form and R
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submit() Chapter 7 ✦ The Form and
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Button Objects (Chapter 24) The top
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Chapter 8 ✦ Button Objects (Chapt
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Checkbox Input Object Properties ch
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value Chapter 8 ✦ Button Objects
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Text-Related Form Objects (Chapter
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Chapter 9 ✦ Text-Related Form Obj
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document.forms[0].inspector.readOnl
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Chapter 9 ✦ Text-Related Form Obj
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} } Chapter 9 ✦ Text-Related Form
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onChange Chapter 9 ✦ Text-Related
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Select, Option, and Optgroup Object
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Chapter 10 ✦ Select, Option, and
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selectedIndex Chapter 10 ✦ Select
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Event handlers onChange Chapter 10
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Table and List Objects (Chapter 27)
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gColor Chapter 11 ✦ Table and Lis
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Now, adjust the cell spacing: docum
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NigerAtlantic Ocean26004180 Zamb
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Chapter 11 ✦ Table and List Objec
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type Chapter 11 ✦ Table and List
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Navigator and Other Environment Obj
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Chapter 12 ✦ Navigator and Other
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mimeTypes Chapter 12 ✦ Navigator
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screen Object Properties availLeft
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Event Objects (Chapter 29) As earli
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Chapter 13 ✦ Event Objects (Chapt
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Chapter 13 ✦ Event Objects (
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Figure 13-2: Clicking on one SPAN e
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clientX clientY layerX layerY pageX
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eventPhase Chapter 13 ✦ Event Obj
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440 ruleObject.style JavaScript Exa
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String and Number Objects (Chapters
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Parsing methods string.charAt(index
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Chapter 16 ✦ String and Number Ob
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488 array.concat() JavaScript Examp
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490 array.concat() JavaScript Examp
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492 array.reverse() JavaScript Exam
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494 array.sort() JavaScript Example
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What’s on the CD-ROM The accompan
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A above property, 442-443 accessKey
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set to empty, 11 working with, 12 c
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location property, 238-240 methods,
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frames border, 197-198, 199 control
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onDragStart event handler, 103, 108
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insertBefore() method compatibility
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go(), 221-222 hasChildNodes(), 74-7
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NN4 layer object above property, 44
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onSelectStart event handler compati
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frame, 385-387 FRAME element object
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protocol property, 213 document obj
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self property compatibility, 149 ex
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text property BODY element object,
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X x property IE4+ event object, 413
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4. Restrictions on Use of Individua
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CD-ROM Installation Instructions Th
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