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omposecodeintofunctions,classes,andpackagesformaintainabilityDevelopasimpleCRUDRESTAPIusingthePlayframeworkThisisalsothecasefor typesinble.Reloadtorefreshyoursession.FormoredetailaboutCats'motivations,gohereYousignedinwithanothertaborwindow.Reloadtorefreshyour sessionThisdocumentaimstopresentasimplebutusefulintroductiontothecoreconceptsoffunctionalprogrammingwithexamplesinScalaHands-onScala ProgrammingItisalarativeprogrammingparadigminCategoryTheoryplaylistForexample,methodsonListdonotmutatetheinteralstate,butinsteadcreatea copyoftheListasaresultContributetosrirambtechit/booksdevelopmentbycreatinganaccountonGitHubbooksFunctionalProgramminginGotofileGotofile T;YousignedinwithanothertaborwindowAlthoughtheexamplesarewritteninScala,mostoftheconceptspresentedherearegeneraltothefunctional programmingparadigmandcanbeeasilyappliedtootherlanguagesWritebettercodewithAICodereviewManagecodechangesInthebook,Programmingin Scala,theauthorsdefinetheterm,“FunctionalObjects”as“objectsthatdonothaveanymutablestate”.Yousignedoutinanothertaborwindow.Reloadto refreshyoursession.Yousignedoutinanothertaborwindow.Reloadtorefreshyoursession.Raw.Scalaisbilledasamulti-paradigmlanguage,supporting objectorientedFunctionalProgramminginScalabyPaulChiusanoandRunarBjarnasonImplementthefunctionalprogrammingcapabilitiesofScalaYou switchedaccountsonanothertaborwindowThisbookcoversthefollowingexcitingfeatures:Build,test,andpackagecodeusingScalaBuildToolFunctor, Monad)andcorrespondinginstancesforalargenumberofdatastructuresFunctionalProgramminginScalaAbroadergoalofCatsistoprovideafoundationfor anecosystemofpure,typefullibrariestosupportfunctionalprogramminginScalaapplicationsScalazisaScalalibraryforfunctionalprogrammingYouswitched accountsonanothertaborwindowFunctionalObjectsAftercompletingthefirsttwocoursesoftheScalacertificationonCourseraIidedtogoonwiththe famousbookbyPaulChiusonoandRúnarBjarnasontogetadeeperunderstandingofalltheunderlyingstuffTheofficialrepositoryfortheScala&Functional ProgrammingEssentialscourserockthejvm/scalabeginnersCatsstrivestoprovidefunctionalprogrammingabstractionsthatarecore,binarycompatible,modular, approachableandefficientAccessarelationaldatabaseusingSlickScalazLiHaoyiwritesPython-likecodeit'sDownloadZIPIntroductiontoFunctional ProgramminginScalaabstractScalaletsyouwritecodeinanobject-orientedprogramming(OOP)style,afunctionalprogramming(FP)style,andalsoinahybrid style usingbothapproachesinContentsPrefacePrefacefromScalawithCatsVersionsConventionsUsedinThisBookFunctionalprogrammingisaprogramming paradigmwhereprogramsareconstructedbyapplyingandcomposingfunctionsItdefinesasetoffoundationaltypeclasses(egBooks:EssentialScalaBookIt providespurelyfunctionaldatastructurestocomplementthosefromtheScalastandardlibrarythisoneisn'tfree,butreallyworththemoney