book

JavaScript Step by Step

Name: JavaScript Step by Step
Author: Steve Suehring
ISBN: 9780735624498

by Steve Suehring

February 2008

Beginner

416 pages

9h 53m

English

Microsoft Press

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JavaScript Step by Step
Dedication
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A Note Regarding Supplemental Files
Acknowledgments
Introducing JavaScript Step by Step
Features and Conventions of This BookUsing the Book's CDWhat's on the CD?Minimum System RequirementsUsing the Sample FilesGetting HelpGetting Help with This Book and Its CD
I. JavaWhat? The Where, Why, and How of JavaScript
1. JavaScript Is More Than You Might Think
A Brief History of JavaScriptEnter Internet Explorer 3And Then Came ECMAScriptSo Many Standards…The DOMWhat's in a JavaScript Program?Placing JavaScript on Your Web PageWhat JavaScript Can DoWhat JavaScript Can't DoJavaScript Can't Be Forced on a ClientJavaScript Can't Guarantee Data SecurityJavaScript Can't Cross DomainsJavaScript Doesn't Do ServersTips for Using JavaScriptWhere JavaScript FitsWhich Browsers Should the Site Support?Exercises
2. Developing in JavaScript
JavaScript Development OptionsConfiguring Your EnvironmentWriting in JavaScript with Visual Studio 2005Your First Web (and JavaScript!) Project with Visual Studio 2005Using External JavaScript Files with Visual Studio 2005Writing JavaScript with EclipseYour First Web (and JavaScript!) Project with EclipseUsing External JavaScript Files with EclipseWriting JavaScript Without an IDEYour First Web (and JavaScript) Project with NotepadUsing External JavaScript Files Without an IDEDebugging JavaScriptExercises
3. JavaScript Syntax and Statements
A Bit of HousekeepingCase SensitivityWhite SpaceCommentsSemicolonsLine BreaksPlacing JavaScript CorrectlyJavaScript StatementsWhat's in a Statement?The Two Types of JavaScript StatementsReserved Words in JavaScriptA Quick Look at FunctionsExercises

4. Working with Variables and Data
Data Types in JavaScriptNumbersNumeric FunctionsThe Math ObjectStringsEscaping QuotesOther Escape CharactersString Methods and PropertiesBooleansNullUndefinedObjectsArraysDefining and Using VariablesDeclaring VariablesVariable TypesVariable ScopeReferences and Garbage CollectionType ConversionsNumber ConversionsString ConversionsBoolean ConversionsExercises
5. Using Operators and Expressions
Meet the OperatorsAdditive OperatorsMultiplicative OperatorsBitwise OperatorsEquality OperatorsRelational OperatorsThe in OperatorThe instanceof OperatorUnary OperatorsIncrementing and DecrementingConverting to a Number with the Plus SignCreating a Negative Number with the Minus SignBitwise Not and Logical NotThe delete OperatorThe typeof OperatorThe void OperatorAssignment OperatorsExercises
II. Applying JavaScript
6. Controlling Flow with Conditionals and Loops
If (and how)Syntax for if StatementsThe prompt() Function in Windows Internet Explorer 7Compound ConditionsNested ConditionsElse if and else StatementsMultiple Levels of ConditionalsTernary ConditionalsSwitchLooping with whileThe while StatementMaking Sure the Code Executes At Least OnceChanging the ConditionThe do…while StatementUsing for LoopsThe for LoopThe for…in LoopThe for each…in LoopValidating Forms with ConditionalsExercises
7. Working with Functions
What's in a Function?Function ArgumentsVariable Scoping RevisitedReturn ValuesMore on Calling FunctionsUnnamed Functions (Function Literals)MethodsA Look at Dialog FunctionsExercises
8. Objects in JavaScript
Object-Oriented DevelopmentObjectsPropertiesMethodsClassesCreating ObjectsAdding Properties to MethodsDisplaying Object PropertiesLooking for a PropertyAdding Methods to ObjectsMore About ArraysThe length PropertyArray MethodsAdding and Removing ElementsBuilt-in ObjectsThe Date ObjectExercises
9. The Browser Object Model
Introducing the BrowserThe Browser HierarchyEventsA Sense of SelfGetting Information About the ScreenUsing the navigator ObjectThe location ObjectThe history ObjectExercises
10. The Document Object Model
The Document Object Model DefinedDOM Level 0: The Legacy DOMDOM Levels 1 and 2The DOM as a TreeWorking with NodesRetrieving ElementsRetrieving by IDRetrieving by Tag NameWorking with AttributesViewing AttributesSetting AttributesCreating ElementsAdding TextAdding an Element and Setting an IDDeleting ElementsExercises
III. Integrating JavaScript into Design
11. Using JavaScript with Web Forms
JavaScript and Web FormsObtaining Form DataWorking with Form InformationWorking with Select BoxesWorking with Check BoxesWorking with Radio ButtonsPrevalidating Form DataHacking JavaScript ValidationValidating a Text FieldExercises
12. Creating and Consuming Cookies
A Look at CookiesCreating Cookies with JavaScriptA Simple CookieSetting a Cookie's Expiration DateSetting the Cookie PathSetting the Cookie DomainWorking with Secure CookiesReading Cookies with JavaScriptRemoving CookiesExercises
13. Working with Images in JavaScript
Working with Image RolloversA Simple RolloverThe Better WayPreloading ImagesWorking with SlideshowsCreating the ShowMoving BackwardWorking with Image MapsExercises
14. Browsers and JavaScript
Understanding Window EventsThe Event ModelsUsing the DOM 0 ModelNewer Event Models: W3C and Windows Internet ExplorerA Generic Event HandlerDetecting Things About the VisitorA Brief Look at the userAgent PropertyFeature TestingKeeping JavaScript Away from Older BrowsersOther navigator Properties and MethodsOpening, Closing, and Resizing WindowsWindow Open and Close: In ActionA Closer Look at the Main Form PageA Closer Look at the New WindowWindow Opening Best PracticesNo JavaScript Necessary?Resizing and Moving WindowsTimersExercises
15. JavaScript and CSS
What Is CSS?Properties and SelectorsApplying CSSThe Relationship Between JavaScript and CSSSetting Element Styles by IDSetting Element Styles by TypeRetrieving Element Styles with JavaScriptModifying Style Sheets with JavaScriptExercises
16. JavaScript Error Handling
An Overview of Error HandlingUsing try/catchAnd Finally…Using the onerror EventAttaching onerror to the window ObjectIgnoring ErrorsAttaching onerror to the image ObjectExercises
IV. AJAX and Beyond
17. JavaScript and XML
Using XML with JavaScriptAn Example XML DocumentLoading an XML Document with JavaScriptImporting the DocumentDisplaying the DocumentA Preview of Things to ComeExercises
18. A Touch of AJAX
Introduction to AJAXThe XMLHttpRequest ObjectInstantiating the XMLHttpRequest ObjectSending an AJAX RequestProcessing an AJAX ResponseProcessing XML ResponsesWorking with JSONProcessing HeadersUsing the POST MethodCase Study: Live Searching and UpdatingExercises
19. A Bit Deeper into AJAX
Creating an HTML Table with XML and CSSStyling the Table with CSSCreating a Dynamic Drop-down BoxAccepting Input from the User and AJAXExercises
A. Answer Key to Exercises
Chapter 1Chapter 2Chapter 3Chapter 4Chapter 5Chapter 6Chapter 7Chapter 8Chapter 9Chapter 10Chapter 11Chapter 12Chapter 13Chapter 14Chapter 15Chapter 16Chapter 17Chapter 18Chapter 19
Index
About the Author
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Copyright

Content preview from JavaScript Step by Step

Appendix A. Answer Key to Exercises

This appendix shows the answers and explanations for the exercises that have appeared throughout the book. In many cases, there is more than one way to solve a problem. Therefore, unless the question specified a particular way to solve the problem, any working implementation is acceptable. It's also expected that your function names will likely differ from the ones in this appendix.

Chapter 1

False. While JavaScript is indeed defined by a standards body, ECMA International, it is not supported on all Web browsers. And the support that does exist varies (sometimes widely) among browsers.
False. There are many reasons why a visitor to your Web site might have JavaScript disabled. The browser they're using might not ...

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JavaScript Step by Step

by Steve Suehring

Appendix A. Answer Key to Exercises

Chapter 1

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