Secrets of the JavaScript Ninja

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1、MEAPEditionManningEarlyAccessProgramCopyright2008ManningPublicationsFormoreinformationonthisandotherManningtitlesgotowww.manning.comContentsPrefacePart1JavaScriptlanguageChapter1IntroductionChapter2FunctionsChapter3ClosuresChapter4TimersChapter5FunctionprototypeChapter6RegExpChapter7wi

2、th(){}Chapter8evalPart2Cross-browsercodeChapter9Strategiesforcross-browsercodeChapter10CSSSelectorEngineChapter11DOMmodificationChapter12Get/SetattributesChapter13Get/SetCSSChapter14EventsChapter15AnimationsPart3BestpracticesChapter16UnittestingChapter17PerformanceanalysisChapter18Vali

3、dationChapter19DebuggingChapter20Distribution1IntroductionAuthorgroupJohnResigLegalnoticeCopyright2008ManningPublicationsIntroductionInthischapter:OverviewofthepurposeandstructureofthebookOverviewofthelibrariesoffocusExplanationofadvancedJavaScriptprogrammingTheorybehindcross-browserco

4、deauthoringExamplesoftestsuiteusageThereisnothingsimpleaboutcreatingeffective,cross-browser,JavaScriptcode.Inadditiontothenormalchallengeofwritingcleancodeyouhavetheaddedcomplexityofdealingwithobtusebrowsercomplexities.Tocounter-actthisJavaScriptdevelopersfrequentlyconstructsomesetofco

5、mmon,reusable,functionalityintheformofJavaScriptlibrary.Theselibrariesfrequentlyvaryincontentandcomplexitybutoneconstantremains:Theyneedtobeeasytouse,beconstructedwiththeleastamountofoverhead,andbeabletoworkinallbrowsersthatyoutarget.Itstandstoreason,then,thatunderstandinghowtheverybes

6、tJavaScriptlibrariesareconstructedandmaintainedcanprovidegreatinsightintohowyourowncodecanbeconstructed.Thisbooksetsouttouncoverthetechniquesandsecretsencapsulatedbythesecodebasesintoasingleresource.Inthisbookwe'llbeexaminingthetechniquesoftwolibrariesinparticular:Prototype(http://prot

7、otypejs.org/)ThegodfatherofthemodernJavaScriptlibrarycreatedbySamStephensonandreleasedin2005.EncapsulatesDOM,Ajax,andeventfunctionalityinadditiontoobject-oriented,aspect-oriented,andfunctionalprogrammingtechniques.jQuery(http://jquery.com/)CreatedbyJohnResigandreleasedJanuary2006,pop