book

Learning Functional Programming

by Jack Widman

August 2022

Intermediate to advanced

135 pages

2h 51m

English

O'Reilly Media, Inc.

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ImmutabilityReferential TransparencyHigher Order FunctionsLazy EvaluationThinking Like a Functional ProgrammerThe Benefits of FPFP Can Improve ProductivityFP Is Fun!ScalaConclusion
Set TheoryFunctionsKinds of FunctionsComputer Science FundamentalsAnonymous FunctionsFunctions as First Class ObjectsConclusion
Category Theory–Based PatternsA Brief HistoryObjects and MorphismsAn Example of a CategoryThe Category ScalFunctorsProgramming Language Formulation of a FunctorThe PatternsThe Functor PatternMonoidsNatural TransformationsMonadsConclusion
The Option Data StructureThe Try Data StructureThe Either Data StructureHigher Order FunctionsMonads in for Comprehensions in ScalaTraditional Data StructuresImmutability and HistoryLazinessConclusion
Mutable and Immutable VariablesRecursionA Linked List ExampleTail RecursionMore Examples of the Power of fold in ScalaA Connection Between fold and MonoidsMore with Higher Order FunctionsFrom map to flatMapConclusion
StreamsAkka StreamsSourceFlowSinkMore on StreamsFS2: Functional Streams for ScalaConclusion
Taking the Pure RouteThe IO MonadTaking the Middle RouteJVM Languages.NET LanguagesType ClassesConclusion
AssumptionsOverviewvar and valClasses and ObjectsFunctionsFunctions that Return FunctionsCase ClassesDeclaring FunctionsCurryingAnonymous FunctionsHigher Order FunctionsPattern MatchingTraitsDistinguishing Abstract Classes and TraitsLazy EvaluationType ParametersThe Option TypeFutureSome Key Higher Order FunctionsSome Other Important Higher Order FunctionsConclusion