Functional programming
In computer science, functional programming is a programming paradigm where programs are constructed by applying and composing functions. It is a declarative programming paradigm in which function definitions are trees of expressions that map values to other values, rather than a sequence of imperative statements which update the running state of the program.
- GitHub: https://github.com/topics/functional-programming
- Wikipedia: https://en.wikipedia.org/wiki/Functional_programming
- Related Topics: oop, declarative-programming, procedural-programming, event-driven-programming,
- Last updated: 2026-06-25 00:08:15 UTC
- JSON Representation
https://github.com/drapegnik/rsschool-fp
:zap: Functional Programming Course
church-encoding fp functional-programming haskell lambda-calculus rolling-scopes-school
Last synced: 05 Apr 2025
https://github.com/loipesmas/vesmor
a fantasy video game console with vector graphics and a declarative statically typed functional programming language
declarative-programming fantasy-console functional-programming gamedev programming-language rust svelte vector-graphics wasm web webassembly
Last synced: 12 May 2026
https://github.com/jabez007/functionalcsharp
A library of static classes, extension methods, and classes that apply functional techniques to C#.
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https://github.com/kaliv0/pyrio
Functional-style Streams API
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https://github.com/emirhandogandemir/functionalprogramming
to Declarative Programming from Imperative Programming
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https://github.com/therealprohacker/lambda
A lambda calculus evaluator in both Haskell and Python
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https://github.com/bcherny/promise-seq
lazy-execute promises in sequence
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https://github.com/articulate/squiss-jobs
SQS-backed job queue
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https://github.com/saketkothari/freecodecamp-javascript-algorithms-and-data-structures
freeCodeCamp JavaScript Algorithms and Data Structures Solutions
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https://github.com/mrft/itr8
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https://github.com/3mp3ri0r/cpyfunctional
cpyfunctional is python package to help you code python in functional programming paradigm
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Playground for learning ZIO things
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Asyncio support for cyclotron
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https://github.com/angarsk8/es6-simple-curry
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https://github.com/joordy/ringring
A dashboard tool on behalf of Ring-ring organization. A dashboard tool for policy makers, which can see how traffic conditions can be improved. The tool consists of several visualizations formed from the Ring-Ring bicycle dataset.
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https://github.com/tonivade/purecheck
Property based testing in Java
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https://github.com/ayushmantripathy/pips
a functional, dynamically weakly typed, interpreted, indented programming language.
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https://github.com/johndavedecano/kwerk
A co-working directory built with elixir language and phoenix framework
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https://github.com/benfaerber/json-parser-combinator
A JSON parser written in Typescript using the Parser Combinator methodology. I recommend that anyone who is interested in functional parsers should use this as a reference.
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https://github.com/peekandpoke/psi
Php Simple Iterations. Map, filter, aggregate, reduce with ease. Produce readable and reliable code without hand-written loops.
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https://github.com/lebrancworkshop/lebranc-learn-functional-programming
I'm learning a Functional Programming by learning its pure math concepts and apply it on functional language like Haskell, Clojure, Elixir, etc.
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https://github.com/roppa/funcker
Functional programming learning exercise
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https://github.com/tysonmn/tysonmn.github.io
Blog of Tyson Williams about software engineering and functional programming
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https://github.com/voltairenoir/chained
A Rust library for lazily chaining functions
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https://github.com/hanzopgp/haskelltest
First time using functional programming language.
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https://github.com/afsalthaj/supaku-sukara
Functional Programming, Functional Programming Exercise Solutions in Scala & Spark
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https://github.com/safwa1/sharpresults
A lightweight, zero-dependency C# library that implements the Result and Option types for more explicit and type-safe error handling. SharpResults helps you avoid exceptions for control flow and makes success/failure and presence/absence states explicit in your code.
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Javascript utilities for functional programming
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Composable easing functions.
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Extra Actor functionality on top of the existing Akkling repository to create an Actor pipeline with ease.
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https://alexgrischuk.gitbook.io/wiki/
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LLVM Compiler for Hazel; a declarative, Functional Programming Language
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https://github.com/pranavgupta1234/rxjava
RX Java is the example of how functional reactive programming can ease out the work and implement the concept of observables and observeres.This uses rxjava 1.x and rxandroid 1.x dependencies
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Zero Days Of Code
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https://github.com/veggiemonk/theme-solarized-light-fjs
Based on Solarized light and tailored for functional programming style in JavaScript
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Solution for pipe functions in Javascript.
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https://github.com/sandromaglione/sandromaglione
Coding since I was 12. Master in Computer Science and Engineering. Open-Source contributor and maintainer. Writing technical guides and tutorial articles.
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MS Basic interpreter in Scala
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https://github.com/szymon-budziak/functional_programming_course_agh
Solutions from Functional programming course at AGH UST. If you use it and it helped you please leave a star ⭐
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https://github.com/bkosm/kpipe
A kotlin-native library introducing a functional-style pipe.
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https://github.com/patzly/set-game-scala
An unofficial Scala version of the SET game for Software Engineering classes at HTWG Konstanz
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Java Programming Concepts
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https://github.com/darky/context-fp
Microscopic functional programming context for TypeScript
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https://github.com/battermann/parser-combinators-scala-hands-on
A series of exercises on functional parsers
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record discord text channel messages bot
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https://github.com/manojpawar94/go-lang-design-patterns-examples
The repository implements various design patterns in the Go Language. Design patterns are typical solutions to commonly occurring problems in software design. They are like pre-made blueprints that you can customize to solve a recurring design problem in your code.
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Spotify Previous Version | It's fully functional & responsive web design
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The Functional transducers that allow transformations with improved performance
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https://github.com/janstuemmel/yep
Easy functional programming with Typescript
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https://github.com/tmorin/faggregate
Unlock the Power of DDD Aggregates and Functional Programming with `faggregate`!
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https://github.com/yosefbeder/qatam
Qatam (قتام) is an Arabic scripting language.
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https://github.com/fabiannorbertoescobar/prolog-haskell-ejercicios
Ejercicios sencillos de Programacion Lógica y Programación Funcional en los lenguajes Prolog y Haskell, realizados en Programación Avanzada para conocer otros paradigmas
functional-programming ghci haskell logic-programming prolog swi-prolog
Last synced: 11 Apr 2025
https://github.com/shal/odd-even-mergesort
:balance_scale: Blazing fast Batcher's sort algorithm
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Last synced: 03 Feb 2026
https://github.com/hablapps/geofences
A proof-of-concept application to show the principles of purely functional programming
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Last synced: 30 Jun 2025
https://github.com/webcpu/haskellswift
A functional library for Swift programmers
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Grain-lang string convenience functions
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Last synced: 22 Mar 2025
https://github.com/catseye/pail
MIRROR of https://codeberg.org/catseye/Pail : An esolang based on pairs (if LISP is LISt Processing then this is PAIr Language)
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https://github.com/marcinzh/beam
Streams using Algebraic Effects and Handlers
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Last synced: 10 Mar 2026
https://github.com/syzer/function-tools
Small (hopefully) lib for operating with files in functional programming style
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Last synced: 24 Jun 2026
https://github.com/emptywork/functional-programming
General purpose repository for learning purely-function languages.
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https://github.com/mmzk1526/doc-jan-haskell
Solutions to Imperial College Department of Computing Haskell January Tests
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https://github.com/wagner-de-carvalho/mybank
Aplicação em Erlang
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https://github.com/astuanax/funmatrix
Matrix applicative
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https://github.com/astuanax/fun
Functional javascript library
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https://github.com/encapsule/holistic
Encapsule Project Holistic App Platform runtime libraries and appgen utility.
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https://github.com/hablapps/naturally
Programming in a tagless-final style, naturally
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https://github.com/oliverjash/simple-maybe
Simple helper functions (map, filter, flatMap, getOrElse, etc.) for transforming T | undefined types (Maybe<T>).
functional-programming maybe option typescript
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https://github.com/milmazz/func_geo_slides
Functional Geometry Description of Escher’s Fish (slides)
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A library for working with lazy lists in Gleam
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https://github.com/pujitm/fun-ov
Flexible functional object validation for API's & highly customized software
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https://github.com/thesephist/ittr
Small library of iterator-related utility functions for JavaScript
functional-programming iterator nodejs
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https://github.com/manusant/katxupa
Delicious Dish for Typescript and JavaScript projects
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https://github.com/radiopotin/computorv1
2nd degree equation solver, first experience in functional programming. 42Paris course project
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150+ OCaml implementations: data structures, algorithms, interpreters, theorem provers, neural networks, distributed systems, and more
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Last synced: 28 Apr 2026
https://github.com/guillaumearm/redux-fun
:wrench: - Redux functional programming utilities
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https://github.com/jaalonso/exercitium2013
Ejercicios de programación funcional con Haskell (Curso 2013-14)
functional-programming haskell haskell-exercises
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https://github.com/rzane/sensible-maybe
Maybe you should use a Maybe?
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https://github.com/mallozup/hanadb_exporter_clojure
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https://github.com/systemfsoftware/essentials
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https://github.com/tebogoyungmercykay/programming-languages-coding-booth
Chris Hanson and the MIT Scheme Team. MIT/GNU Scheme reference manual. Technical report, Mas- sachusetts Institute of Technology, 2018.
cobol fortran functional-programming imperative-programming-language imperative-scripting-languages languages logic-programming object-oriented-programming programmin racket ruby scheme
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https://github.com/bkuhlmann/functionable
Enhances modules to be functional by default.
composition functional-programming functions
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https://github.com/blakek/compose
🛠 Compose functions and promises
functional-programming functions pipeline promise
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https://github.com/kschuetz/enhanced-iterables
Iterables with additional methods
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https://github.com/felixarpa/LP-Haskell
🎓 Haskell problems of Programming Languages (FIB)
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https://github.com/deviltea/tiny-pipe
A pipe function builder with tiny size and type-safe.
functional-programming pipe type-safe typescript
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https://github.com/gregorykogan/result
result is a C++ library that provides a Result type, which can be used to return and propagate errors. It's inspired by Rust's Result type.
auto-documentation cpp doxygen doxygen-documentation doxygen-theme error-handling functional-programming modern-cpp result-type
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https://github.com/calvinlfer/etl-workflow
An opinionated way to structure ETL pipelines with a heavy focus on reusability and testing
cats etl functional-programming scala
Last synced: 06 Jul 2025
