book

JavaScript The Complete Reference, 3rd Edition

by Thomas Powell, Fritz Schneider

July 2012

Intermediate to advanced

976 pages

25h 7m

English

McGraw-Hill

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Cover Page
JavaScript: The Complete Reference, Third Edition
Copyright Page
Contents at a Glance
Contents
Acknowledgments
Introduction
Part I Introduction
Chapter 1 Introduction to JavaScript
Hello JavaScript WorldHello ErrorsAdding JavaScript to XHTML DocumentsThe <script> ElementEvent HandlersLinked ScriptsJavaScript Pseudo-URLJavaScript Usage ConsiderationsScript MaskingThe <noscript> ElementLanguage VersionsCross-Browser ConcernsLiving with Other ScriptsJavaScript: A Real Programming LanguageHistory of JavaScriptCommon Uses of JavaScriptThe Rise of JavaScript LibrariesThe Future of JavaScriptSummary
Chapter 2 Overview of JavaScript Core Language Features
Basic DefinitionsExecution OrderCase SensitivityHTML and Case SensitivityWhitespaceStatementsSemicolonsBlocksVariablesBasic Data TypesWeak TypingType ConversionComposite TypesObjectsArraysFunctions as Data TypesRegular Expression Literals and ObjectExpressionsArithmetic OperatorsAssignment OperatorsLogical OperatorsConditional OperatorType OperatorsComma OperatorRelational OperatorsOperator Precedence and AssociativityFlow ControlLoopsLoop ControlInput and Output in JavaScriptFunctionsScoping RulesRegular ExpressionsExceptionsCommentsECMAScript 5 Changes“use strict”;Native JSON SupportFunction.prototype.bind( )ISO DatesNative Array AdditionsString.prototype.trim( )Object/Property AdditionsEmerging FeaturesSummary

Part II Core Language
Chapter 3 Data Types and Variables
Key ConceptsWeak TypingJavaScript’s Primitive TypesNumbersStringsBooleansUndefined and NullComposite TypesObjectsArraysFunctionsThe typeof OperatorType ConversionConversion Rules for Primitive TypesPromotion of Primitive Data to ObjectsExplicit Type ConversionVariablesIdentifiersVariable DeclarationImplicit Variable DeclarationVariable ScopeConstantsSummary
Chapter 4 Operators, Expressions, and Statements
Statement BasicsWhitespaceTermination: Semicolons and ReturnsBlocksOperatorsAssignment OperatorArithmetic OperatorsBitwise OperatorsBitwise Shift OperatorsCombining Arithmetic and Bitwise Operations with AssignmentIncrement and DecrementComparison OperatorsLogical Operators? OperatorComma Operatorvoid OperatortypeofObject OperatorsOperator Precedence and AssociativityCore JavaScript Statementsif Statementsswitchwhile Loopsdo-while Loopsfor LoopsLoop Control with continue and breakObject-Related StatementsOther StatementsSummary
Chapter 5 Functions
Function BasicsParameter Passing BasicsReturn StatementsParameter Passing: In and OutGlobal and Local VariablesVariable Naming for ScopeInner FunctionsClosuresFunctions as ObjectsFunction LiteralsStatic VariablesAdvanced Parameter PassingAdvanced Function Properties and MethodsRecursive FunctionsSummary
Chapter 6 Objects
Objects in JavaScriptObject FundamentalsObject CreationObject Destruction and Garbage CollectionPropertiesObjects Are Reference TypesCommon Properties and MethodsObject-Oriented JavaScriptPrototype-Based ObjectsConstructorsPrototypesClass PropertiesInheritance via the Prototype ChainOverriding Default Methods and PropertiesECMAScript 5 Object-Related ChangesJavaScript’s Object-Oriented RealitySummary
Chapter 7 Array, Date, Math, and Type-Related Objects
ArrayAccessing Array ElementsAdding and Changing Array ElementsRemoving Array ElementsThe length PropertyArrays as Stacks and QueuesManipulating ArraysMultidimensional ArraysExtending Arrays with PrototypesECMAScript 5 Array AdditionsBooleanDateCreating DatesManipulating DatesECMAScript 5 Date AdditionsGlobalMathRandom NumbersNumberStringExamining StringsManipulating StringsMarking Up Strings as Traditional HTMLECMAScript 5 String ChangesSummary
Chapter 8 Regular Expressions
The Need for Regular ExpressionsIntroduction to JavaScript Regular ExpressionsCreating PatternsRegExp Objecttest( )Subexpressionscompile( )exec( )RegExp PropertiesString Methods for Regular Expressionssearch( )split( )replace( )match( )Advanced Regular ExpressionsMultiline MatchingNoncapturing ParenthesesLookaheadGreedy MatchingLimitations of Regular ExpressionsSummary
Chapter 9 JavaScript Object Models
Object Model OverviewThe Initial JavaScript Object ModelThe Document ObjectAccessing Document Elements by PositionAccessing Document Elements by NameSimple Event HandlingSetting Event Handlers InlineDirect Assignment of Event HandlersSetting Event ListenersInvoking Event HandlersJavaScript + DOM + Selection + Events = ProgramThe Evolution of the JavaScript Object ModelThe Early Evolution of Browser Object ModelsDHTML-Oriented Object ModelsInternet Explorer 4’s DHTML Object ModelBeyond the DHTML Object ModelsSummary
Chapter 10 The Standard Document Object Model
DOM FlavorsWhat Browsers Say Is ImplementedDocument TreesBasic Element Access: getElementById( )Tree Traversal BasicsOther Element Access MethodsgetElementsByName( )Common JavaScript CollectionsgetElementsByTagName( )Common Tree Traversal Starting Pointsdocument.getElementsByClassName( )querySelector( ) and querySelectorAll( )Creating NodesAppending and Inserting NodesText Nodes and normalize( ) MethodinsertBefore( ) methodOther Insertion MethodsDynamic Markup Insertion RealitiesinnerHTMLouterHTMLinnerText and outerTextinsertAdjacentHTML( ) and insertAdjacentText( )document.write( ) and document.writeln( )Copying NodesDeleting and Replacing NodesModifying Text NodesManipulating AttributesAttribute NodesOther Node MethodsNamespacesThe DOM and HTML ElementsHTML Element MappingsDOM Table ManipulationThe DOM and CssInline Style ManipulationDynamic Style Using Classes and CollectionsComputed StyleAccessing Complex Style RulesDOM Traversal APIDOM Range SelectionsContinued DOM EvolutionSummary
Chapter 11 Event Handling
Overview of Events and Event HandlingThe Traditional Event ModelEvent Binding with HTML AttributesBinding Event Handler Attributes with JavaScriptEvent Handler Scope DetailsReturn ValuesFiring Events ManuallyOverview of Modern Event ModelsInternet Explorer’s Proprietary ModelattachEvent( ) and detachEvent( )Event ObjectEvent BubblingSimulating Event RoutingEvent CreationDOM Event ModelTraditional Binding ChangesaddEventListener( ) and removeEventListener( )Event ObjectPreventing Default ActionsControlling Event PropagationEvent CreationEvent TypesMouse EventsUi EventsFocus EventsKeyboard EventsText EventsMutation EventsNonstandard EventsCustom EventsBrowser State and Loading EventsEvent Model IssuesSummary
Part III Applied JavaScript
Chapter 12 Windows, Frames, and Overlays
Introduction to the Window ObjectDialogsalert( )confirm( )prompt( )Emerging and Proprietary Dialog MethodsshowModalDialog( )showModelessDialog( )createPopup( )Opening and Closing Generic WindowsWindow FeaturesDetecting and Controlling Window ChromePracticalities of Spawned WindowsBuilding Window ContentsOverlays Instead of WindowsControlling Windowsfocus( ) and blur( )stop( )print( )find( )Moving WindowsResizing WindowsScrolling WindowsAccessing and Setting a Window’s LocationHash Values in URLsManipulating a Window’s Historypushstate( ) and replacestate( )Trying to Control the Window’s Status BarSetting Window Timeouts and IntervalsWindow EventsInterwindow Communication BasicsInterwindow Message Passing with postMessage( )Frames: A Special Case of WindowsInline FramesApplied FramesSummary
Chapter 13 Form Handling
The Need for JavaScript Form CheckingForm BasicsAccessing Forms and FieldsForm FieldsCommon Input Element PropertiesButtonsTraditional Text FieldsHTML5 Semantic Text FieldsText AreasCheckboxes and Radio ButtonsSelect MenusDate PickersColorSlidersFile Upload FieldsHidden FieldsOther Form Features: Label, Fieldset, Output, and LegendForm Usability and JavaScriptFirst Field FocusLabels and Field SelectionAdvisory and Status MessagesData ListsDisabled and Read-Only FieldsForm ValidationAbstracting Form ValidationError Messagesonchange HandlersKeyboard MaskingHTML5 Validation ImprovementsValidation AttributesValidation Properties and Methodsnovalidate AttributeMiscellaneous Html5 Form ChangesInternationalizationSummary
Chapter 14 User Interface Elements
Adding JavaScriptExploring Progressive EnhancementGraceful Degradation ApproachesHTML5 Support for Rich InteractionMenus and Context MenusDrag-and-Drop FunctionalityContent EditingRevealing Content on DemandUser FeedbackSummary
Chapter 15 Ajax and Remote JavaScript
Ajax DefinedHello Ajax WorldXML HttpRequest ObjectXHR Instantiation and Cross-Browser ConcernsActiveX XHR Fallback DetailsA Cross-Browser XHR WrapperXHR Request BasicsSynchronous RequestsAsynchronous RequestsSending Data via GETSending Data via PostUsing Other HTTP MethodsSetting Request HeadersResponse BasicsreadyState Exploredstatus and statusTextresponseTextresponseXMLresponse and responseTypeJSONScript ResponsesResponse HeadersControlling RequestsAuthentication with XHRsPropriety and Emerging XHR FeaturesManaging MIME TypesMultipart Responsesonload, onloadstart, and onloadendonprogress and Partial ResponsesonerrorForm SerializationFile Uploads with iframesCross-Domain Ajax RequestsInternet Explorer’s XDRsNon-XHR Communication MethodsImage TagScript TagComet and SocketsPolling: Fast or LongThe Long Slow LoadWebSocketsAjax Implications and ChallengesSummary
Chapter 16 Browser Management
Browser Detection BasicsThe Navigator ObjectWhat to DetectTechnology DetectionVisual Detection: Screen ObjectUser CharacteristicsNetwork State and PerformanceSimple Page Load Metricswindow.performance.timingBrowser ControlSimulating Browser Button PressesState ManagementCookies in JavaScriptUsing Cookies for User State ManagementCookie LimitationsStorageIndexedDBAppCacheScript ExecutionWeb WorkersSummary
Chapter 17 Media Management
Image HandlingApplied ImagesDHTML, DOMEffects, and AnimationClient-Side Bitmap Graphics with <canvas>Drawing and Styling Lines and ShapesDrawing Arcs and CurvesScaling, Rotating, and Translating DrawingsUsing Bitmaps in DrawingsText Support for <canvas>CompositingSaving State<canvas> ConsiderationsClient-Side Vector Graphics with SVGIncluding SVGDrawing with SVGSVG Interaction and AnimationHTML5 Media Handling<video><audio>Media EventsPlug-InsEmbedding Content for Plug-InsMIME TypesDetecting Specific Plug-InsInteracting with Plug-InsActiveXIncluding ActiveX ControlsInteracting with ActiveX ControlsJava AppletsIncluding AppletsJava DetectionAccessing Applets in JavaScriptAccessing JavaScript with AppletsThe Uncertain FutureSummary
Chapter 18 Trends and Practices
Writing Quality JavaScriptCoding StyleComments and DocumentationUnderstanding ErrorsDebuggingDefensive ProgrammingUtilizing Frameworks and LibrariesSecurityJavaScript ProtectionJavaScript’s Security PolicySame-Origin PolicyTrusted External ScriptsCross-Site ScriptingCross-Site Request Forgery (CSRF)PerformancePerformance Measurements and ToolsPage-Load PerformanceRuntime PerformanceTrendsJavaScript Everywhere“Fixing” and Hiding JavaScriptAccepting JavaScriptSummary
Appendix JavaScript Reserved Words
Reserved Quirks
Index

Content preview from JavaScript The Complete Reference, 3rd Edition

CHAPTER 4Operators, Expressions, and Statements

This chapter provides an overview of the basic building blocks of every script: operators, expressions, and statements. The data types introduced in the last chapter are used directly as literals or within variables in combination with simple operators, such as addition or subtraction operators, and so on, to create expressions. An expression is a code fragment that can be evaluated to some data type the language supports. For example, 2+2 is an expression with the numeric value 4. Expressions are, in turn, used to form statements —the most basic unit of script execution. The execution of statements is controlled using conditional logic and loops.

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Object-Oriented JavaScript - Third Edition

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JavaScript The Complete Reference, 3rd Edition

by Thomas Powell, Fritz Schneider

CHAPTER 4Operators, Expressions, and Statements

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