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: 2026-07-08 00:12:18 UTC
- JSON Representation
https://github.com/sophiecollard/twitter-clone
Simple Twitter clone to demo building REST and GraphQL APIs using the Scala 2.13 and the Typelevel stack as well as single-page frontend applications with Elm 0.19.
api backend cats cats-effect circe doobie elm elm-lang fp functional-programming graphql http4s rest rest-api sangria sangria-graphql scala tapir twitter typelevel
Last synced: 10 Apr 2025
https://github.com/d-plaindoux/alda
Intuitive and simple to use OCaml parsec
functional-programming parser-combinators
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https://github.com/jmlweb/mochila
Your Lightweight Travel Companion for TypeScript Programming
functional-programming typescript utils
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https://github.com/tonivade/purejson
Pure functional Json parser library
experimental functional-programming java json
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https://github.com/minikin/tagged
🏷️ Tagged: A Newtype Pattern, a Safe & Type-Restricted Wrapper for Dart.
dart flutter functional-programming
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https://github.com/thebutlah/batlcaml
BatlCaml - An OCaml AI Programming Game
artificial-intelligence functional-programming game
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https://github.com/facaiy/dag-lite
An experimental DAG library with functional programming technology.
dag functional-programming scala-library
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https://github.com/higordiego/tester-lap3d
Teste de Seleção para desenvolver Back-end
functional-programming mongodb mongoose nodejs
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https://github.com/theangrydev/business-flows
A combination of the Try monad and the Either monad, to help tame complex business flows
either functional-programming happy-path java-8 monad railway-oriented-programming sad-path try-catch validation
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https://github.com/nshkrdotcom/sandbox
Isolated OTP application management system for Elixir/Erlang
application-isolation application-management beam elixir erlang-vm functional-programming isolation nshkr-testing otp otp-applications process-isolation sandbox-environment testing testing-tools
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https://github.com/richie-south/fp-lib
Plura: Super simple functional programming library
Last synced: 24 Oct 2025
https://github.com/critocrito/dashp
Utilities for monadic promises.
browser functional-js functional-programming javascript monadic nodejs promises
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https://github.com/davidvujic/functional-python
Exploring how to use functional concepts in Python
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https://github.com/numq/mvarchitecture
Android Jetpack Compose Clean Architecture design patterns implementation
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Bartosz Milewski's Category Theory for Programmers as an eBook
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A library of data structure with extended features for each structures.
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https://github.com/ciavash/curry
Curry is a Raku module for currying functions plus partially applying them
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https://github.com/jeffgbutler/practical-functional-java
Practical Functional Java Workshop Materials
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https://github.com/ciavash/patternmatching
A Raku module for pattern matching
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https://github.com/karimaziev/fp
A collection of combinators for Elisp
combinatorics emacs emacs-lisp functional-programming
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https://github.com/alseinx/extensions
Some commonly used basic utilities for .NET programming.
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https://github.com/solarisstudio/piccodescript
A simple functional scripting language created in java
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https://github.com/andys8/elm-talk
Elm talk with mdp
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https://github.com/ronanyeah/rotools-js
npm package for functional utilities
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https://github.com/uncledave/simplefunctionalextensions
Simple functional extensions for C#. Lightweight and doesn't hold your hand.
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https://github.com/ehmicky/set-array
Set array items declaratively
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https://github.com/ucsd-progsys/yunounderstand-data
A collection of novice interactions with the OCaml top-level.
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https://github.com/amarshall/boiga
Type-safe functional programming for Python
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ReScript assistant for GPT4
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https://github.com/gabrielperales/game-of-life
Conway's Game Of Life in Elm
elm example examples functional-programming game-of-life
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https://github.com/crabby-lang/crabby
Crabby, the new programming language of the modern programming era.
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https://github.com/jub0bs/iterutil
an experimental collection of utility functions (sources, combinators, sinks) for working with Go iterators
combinators functional-programming functions generics generics-in-golang go golang iterator
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https://github.com/tillathehun0/murry
Separate controller and router handling with currying
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https://github.com/mokeyish/pyiter
PyIter is a Python package for iterative operations inspired by the Kotlin、CSharp(linq)、TypeSrcipt and Rust . Enables strong **typing** and type inference for iterative operations.
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https://github.com/qbixxx/lambdacalculusengine
Lambda interpreter built in Scala. Supports CbN, CbV and Free Variables calculations.
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https://github.com/chamini2/angler-lang
The Angler Functional Programming Language
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Church encoding in PHP
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A minimal functional programming language with type inference, algebraic data types and pattern matching
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Functional Programming in C++14
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https://github.com/d-plaindoux/hpas
Functional ADT And Asynchronous stuff in Java
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https://github.com/endle/ironcamel
The "most functional" imperative programming language and a toy intepreter.
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https://github.com/hackworthltd/primer-app
DEPRECATED: Primer's old React frontend application.
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https://github.com/philihp/pcg
A functional implementation of the PCG family random number generators, written in TypeScript.
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https://github.com/fluture-js/callgebra
The little algebra of callbacks
algebraic-data-types callbacks functional-programming
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haskell exercises
exercises functional-programming haskell-learning
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https://github.com/severen/sly
A cunning interpreter for the pure untyped λ-calculus.
computability-theory functional-programming haskell interpreter lambda-calculus language programming-language programming-language-theory
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https://github.com/anicolaspp/netchecker
.NET Minimalist Property Based Testing Framework
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https://github.com/timfennis/apply
Functional Programming in PHP
arrow functional-programming monad php php-library php74
Last synced: 07 Mar 2026
https://github.com/mmzk1526/haskell-while-code
Implement the WHILE language introduced in the Imperial College Course Models of Computation
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https://github.com/francomelandri/pipeline-fp
pipeline pattern using functional programming approach
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Single assignment variables in Python
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Temario de talleres de Scala impartidos para la comunidad PEUM
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https://github.com/sandromaglione/ocaml-getting-started-advent-of-code-23
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函数式编程学习,包含实现代码和大量实践应用demo
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shortcut fu⚡️ion for TypeScript
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ARM Assembly Language Emulator implemented in F#
arm emulator fsharp functional-programming
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Recursively generate large-scale Nengo models using NumPy semantics.
functional-programming nengo neural-networks numpy python
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https://github.com/ilyasyoy/python-streamer
Simple lazy python Stream API-like wrapper.
functional-programming python stream
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https://github.com/ehmicky/switch-functional
Functional switch statement
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docker docker-compose elm functional-programming postgres postgresql scala scalajs smithy typelevel
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https://github.com/norbcodes/ncapybaralib
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capybara functional-programming library math mathematics module ncapybaralib python python-library python-module python-package python3 wad
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Low overhead, protected views over Java collections
collections functional-programming immutable java lambda non-empty set vector
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https://github.com/JonasMuehlmann/optional.go
optional.go is a simple and generic wrapper around a value and a presence flag inspired by C++'s std::optional
functional functional-programming go golang optional optional-type
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https://github.com/kevin-lee/just-fp
A small functional programming library
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Last synced: 13 Apr 2025
https://github.com/denismurphy/pythonic
Selection of naive code snippets and examples that I compiled while learning Python.
beginner collections functional-programming oop python typing zen
Last synced: 09 Feb 2026
https://github.com/inhibitor1217/lemma
(WIP) i18n web service
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https://github.com/huntie/stringutils
A functional string utility library for Python
case-conversion functional-programming functional-python string-utilities
Last synced: 06 May 2025
https://github.com/ivangalbans/hackerrank
My solutions to HackerRank challenges
algorithms clojure cpp data-structures functional-programming hackerrank-solutions problem-solving sql
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Lambda Calculus with Hy - Docs: http://calchylus.readthedocs.io/
functional-programming hy lambda-calculus lisp logic-programming python
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arrow arrow-kt ddd ddd-example ddd-sample domain-driven-design domain-modeling functional-programming kotlin
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functional-programming math projecteuler100 scala speedrun
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deep-learning dotty functional-programming machine-learning neural-network scala
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https://github.com/jakxz/functional-or
functional OR in js
functional-programming javascript or
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https://github.com/mtumilowicz/scala-zio2-fs2-refined-newtype-workshop
Introduction into fs2, newtype and refined types.
functional-language functional-programming functional-programming-examples newtype purely-functional refined-types scala workshop workshop-materials workshops zio zio2
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(experimental) Trying to express some functional concepts in PHP
experimental functional-programming php
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https://github.com/vickumar1981/functional_python
Functional Programming in Python: PyCon 2022 Jupyter notebook
functional-programming jupyter-notebook pycon2022
Last synced: 11 Aug 2025
https://github.com/italomaia/lua_fun
Functional programming library for lua lang.
functional-programming lua lua53
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https://github.com/samyam81/anonymous-functions
A lambda expression in Java is a concise way to define an anonymous function that can be used as a method parameter or assigned to a variable.
cpp csharp functional-programming java
Last synced: 11 May 2026
https://github.com/grigorii-horos/picolang
Minimal interpreter of functional language, writen in JavaScript
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https://github.com/romalev/reactive-spring-web-flux-service
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functional-programming gradle http-server integration-testing java-8 netty poc reactive-programming reactive-streams reactor rest spring-boot web-flux
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a gleam to wasm compiler
compiler functional-programming gleam rust systems-programming wasm webassembly
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https://github.com/causaly/array-fp-utils
Array utilities for functional programming in TypeScript.
array fp fp-ts functional-programming typescript
Last synced: 19 Jun 2025
https://github.com/flintinatux/squirrel
A nimble functional library for Lua.
compose curry functional-programming lua
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https://github.com/rubenjgarcia/commons-functional
A collection of Functional helpers for Java 8
functional functional-programming java-8 tuples
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https://github.com/crowdhailer/eyg
Explicit concurrency for intelligible parallel programing.
actors causality consistency dependent-types functional-programming immutability language
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advent-of-code advent-of-code-2017 functional-programming javascript
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async context dependency fp functional functional-programming promise typescript
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Functional and Declarative NodeJS Framework.
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