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2、easynchronouscodeeffectively—includingtheinevitablefloodofcallbackstoasynchronousWITHasyourcodebasegrows.You’lllearntheinnerworkingsofPromisesandprogrammingthatanywaystoavoiddifficultiesandmisstepswhenusingthem.JavaScriptdeveloperwillPROMISESTheabilitytoa
3、synchronouslyfetchdataandloadscriptsinthebrowserfinduseful.JavaScriptbroadensthecapabilitiesofJavaScriptapplications.Butifyoudon’twithPromisescoversunderstandhowtheasyncpartworks,you’llwindupwithunpredictableboththeHowandWhy,codethat’sdifficulttomaintain.
4、Thisbookisidealwhetheryou’renewtoPromisesorwanttoexpandyourknowledgeofthistechnology.focusingoncurrentpracticaltools.”■UnderstandhowasyncJavaScriptworksbydelvinginto—KrisKowalcallbacks,theeventloop,andthreadingSeniorSoftwareEngineer,Uber;creatoroftheQlibr
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7、isesspecificationDanielParkerisasoftwaredeveloperfocusedonwebandmobileapplications.HewritesJavaScriptforEvernoteinAustin,Texas,andistheorganizeroftheAustinGoogleDeveloperGroup.PromisesParkerMANAGINGASYNCHRONOUSCODEPROGRAMMING/JAVASCRIPTTwitter:@oreillymed
8、iafacebook.com/oreillyUS$19.99CAN$22.99ISBN:978-1-449-37321-4DanielParkerwww.it-ebooks.infoJavaScriptwithPromisesJAVASCRIPTAsynchronousJavaScriptiseverywhere,whetheryou’reusingAjax,“DanielParkerbeginswithAngularJS,N
