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: 2026-06-30 00:12:00 UTC
JSON Representation

https://github.com/rightfold/feldspar

A programming language.

feldspar functional-programming programming-language scripting-language

Last synced: 23 Apr 2025

https://github.com/mlms13/bs-nonempty

NonEmpty type with Array and List implementations for ReasonML and OCaml

bucklescript collections functional-programming list nonemptylist ocaml reasonml

Last synced: 09 Apr 2025

https://github.com/jiayihu/lab

Personal experiments with technologies

functional-programming haskell

Last synced: 07 Apr 2025

https://github.com/bodrovis-learning/elixir-yt-series

Серия видео "Функциональная разработка на Elixir" на YouTube

elixir functional-programming lessons youtube

Last synced: 24 Apr 2025

https://github.com/wallacyyy/hubot-coffeepoll

A functional Hubot plugin to help your team to choose where to drink a coffee ! :coffee:

coffee drink foursquare fp functional functional-programming hubot poll ramda voting

Last synced: 04 Apr 2025

https://github.com/owaismohsin001/sunlight-lang

Sunlight lang is a dynamic, lazy, and functional programming language that compiles to Lua and JS

algebraic-data-types beginner-friendly compiler dynamic-polymorphism dynamic-programming dynamic-typing functional-language functional-languages functional-programming language lua memoization memorization multimethod polymorphic-functions polymorphic-variants polymorphism pure-functional sunlight sunlight-lang

Last synced: 09 Apr 2025

https://github.com/iloveitaly/funcy-pipe

If Funcy and Pipe had a baby. Decorates all Funcy methods with Pipe superpowers.

data-manipulation functional-programming funcy pipe python

Last synced: 24 Apr 2025

https://github.com/improvetheworld/dataflow.net

Unified sync/async stream processing with category-based filtering. Single API for IEnumerable/IAsyncEnumerable with Cases/SelectCase/ForEachCase pattern. Eliminates Rx complexity, enables elegant pipeline composition for real-time data processing.

async-await async-enumerable category-filtering csharp data-streaming dotnet event-processing fluent-api functional-programming linq-extensions observables-alternative pipeline-composition- reactive-programming stream-processing

Last synced: 10 Feb 2026

https://github.com/nekronos/resultsharp

Result type for C#

c-sharp error-handling functional-programming result-type

Last synced: 15 May 2025

https://github.com/cassanof/stiletto

A Compiler written in ML for a python-like (mostly) functional language

compiler-design compilers functional-programming ocaml python

Last synced: 30 Apr 2025

https://github.com/diego-vicente/monadic-gcd

Learning exercise (GCD) with explanation about monads

functional-programming functional-programming-examples monads

Last synced: 05 Mar 2026

https://github.com/maartz/swiftpipeline

SwiftPipeline is a lightweight, functional-style library for Swift that brings the power of threading macros inspired by languages like Clojure.

functional-programming swift

Last synced: 10 Oct 2025

https://github.com/jderochervlk/remote-data-query

A React hook to wrap react-query results with fp-ts-remote-data results.

fp-ts functional-programming react typescript

Last synced: 13 Aug 2025

https://github.com/hachibeedi/masala

some metaprogramming spice for Python

functional-programming metaprogramming monad python

Last synced: 14 Jun 2025

https://github.com/astrolabsoftware/interfaces

How to interface different languages implied in the process of scientific programming especially in the context of the AstroLab Sofware organization, or developments using it.

apache-spark c c-plus-plus functional-programming jna scala

Last synced: 30 Apr 2025

https://github.com/biuld/calculator

an arithmetic calculator written with compiling theory in mind

arithmetic-calculator basic-compiler compiling-theory complier-tutorial functional-programming haskell

Last synced: 24 Jan 2026

https://github.com/mooseman/pdfpc

Public domain functional programming in C.

c functional-programming unlicense

Last synced: 16 Mar 2025

https://github.com/hanaasagi/fp-in-python-zh

Functional Programming in Python 中文翻译

book functional-programming python translation

Last synced: 17 Sep 2025

https://github.com/imclerran/roc-ai

Roc Package for building with LLMs.

artificial-intelligence functional-programming roc-lang

Last synced: 01 Feb 2026

https://github.com/regadas/scio-cats

leverage cats type classes and data types in scio pipelines

apache-beam cats functional-programming scala scio

Last synced: 07 Oct 2025

https://github.com/ph-7/useful-php-functions-v2

Useful PHP Functions version 2

functional-programming functions php

Last synced: 13 May 2025

https://github.com/fusion/data.cr

A bumbling foray in immutable data structures land. In Crystal!

crystal data-structures functional functional-programming immutable immutable-datastructures persistent persistent-data-structure

Last synced: 14 Apr 2025

https://github.com/raiondesu/eventhoven

Event manager that composes events effortlessly 🎵

compose-events event event-handlers event-management event-manager event-signature functional functional-programming manager meta-events solid solid-principles tree-shakeable type-safe typescript

Last synced: 07 May 2025

https://github.com/javiersegoviacordoba/network-either-kmp

arrow arrow-kt functional-programming hacktoberfest kotlin kotlin-multiplatform ktor ktor-client multiplatform multiplatform-kotlin-library retrofit retrofit2

Last synced: 04 Jul 2025

https://github.com/edeckers/pyella

Common applicatives, functors and monads for loads of /fun/ with Python

applicative either fp functional-programming functor hacktoberfest haskell just lambda maybe monad optional python

Last synced: 12 Mar 2026

https://github.com/jaschdoc/flix-parsers

A simple parser combinator library for Flix

flix functional-programming parser-combinators predictive-parser top-down-parser

Last synced: 31 Jan 2026

https://github.com/numq/mvarchitecture

Android Jetpack Compose Clean Architecture design patterns implementation

android android-architecture android-compose arrow-kt clean-architecture compose coroutines-flow example functional-programming koin kotlin kotlin-coroutines mvc mvi mvp mvvm open-source reactive-programming room screaming-architecture

Last synced: 14 May 2025

https://github.com/taylorwood/taylorwood.github.io

blog clojure fsharp functional-programming

Last synced: 16 May 2025

https://github.com/ntwilson/result-dotnet

Result class for FP-style error handling in C#

csharp error-handling functional functional-programming result

Last synced: 24 Apr 2025

https://github.com/chobeat/scala-geohash

Geohash tools for Scala

functional-programming geohash geolocation scala

Last synced: 14 Apr 2025

https://github.com/mattlianje/flowers

Functional cipher machines

cipher cryptography functional-programming lorenz optics

Last synced: 09 Apr 2025

https://github.com/imteekay/talks

Tech Talks - Striving to share knowledge

functional-programming javascript react typescript

Last synced: 13 Apr 2026

https://github.com/jeffgbutler/practical-functional-java

Practical Functional Java Workshop Materials

functional-programming java

Last synced: 25 Jul 2025

https://github.com/mode89/sodium-python

Python implementation of Sodium - Functional Reactive Programming (FRP) Library

frp functional-programming functional-reactive-programming python

Last synced: 16 Jan 2026

https://github.com/mattx/relambda

Bytecode-compiling Unlambda 2.0 interpreter

esoteric-language functional-programming rust

Last synced: 27 Oct 2025

https://github.com/lavantien/springboot-restapi

A simple RESTful API with Validator and Unit Testing

ci-pipeline docker-compose functional-programming java rest-api spring-boot unit-testing

Last synced: 02 May 2026

https://github.com/d-plaindoux/alda

Intuitive and simple to use OCaml parsec

functional-programming parser-combinators

Last synced: 13 Aug 2025

https://github.com/bb-simon/javascript-all-you-need-to-know

A comprehensive guide to JavaScript, covering essential concepts, advanced topics, and problem-solving techniques. This repository includes in-depth resources for functional programming, object-oriented programming (OOP), data structures, algorithms, and numerous solved LeetCode problems.

data-structures-and-algorithms es6 functional-programming javascript leetcode-solutions nodejs object-oriented-programming oop-in-javascript problem-solving

Last synced: 23 Apr 2025

https://github.com/ScalaMath/VecMatLib

Open source Scala library that provides data structures for vectors and matrices

3d-graphics algebra functional-programming java linear-algebra math mathematics maths matrix-math scala vector-math

Last synced: 18 Sep 2025

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

Last synced: 23 Apr 2025

https://github.com/thma/thma.github.io

Lambda is not a four letter word. My blog on all things haskell and FP.

equational-reasoning functional-programming haskell lambda-calculus patterns

Last synced: 26 Mar 2025

https://github.com/brunodantas/ensures

Design by Contract with Functional Programming

contracts functional-programming python

Last synced: 14 Jan 2026

https://github.com/felipemonobe/lagoinha-hs

A Haskell study with concurrency, http requests, JSON and XML parsing.

aeson async asynchronous concurrency functional-programming haskell haskell-learning http json race-conditions wreq xml

Last synced: 24 Apr 2026

https://github.com/anicolaspp/netchecker

.NET Minimalist Property Based Testing Framework

csharp dotnet functional-programming property-based-testing testing testing-framework testing-tool

Last synced: 14 Apr 2025

https://github.com/thealexlichter/advent-of-code

My solutions for the Advent of Code (since 2k17)

advent-of-code advent-of-code-2017 functional-programming javascript

Last synced: 24 Mar 2025

https://github.com/quevivasbien/henrylang

programming language for lobsters

functional-programming hobby-project programming-language rust

Last synced: 22 Feb 2026

https://github.com/btravstack/unthrown

Explicit errors as values for TypeScript — with a separate defect channel for the unexpected and qualification enforced at every boundary.

async defect either error-handling errors-as-values esm functional-programming monad railway-oriented-programming result result-type tagged-error type-safe typescript zero-dependencies

Last synced: 30 Jun 2026

https://github.com/hoangtien2k3/keycloak-auth-service

Auth-Service using Keycloak for authentication, built with Java WebFlux and functional programming, includes noti-service for sending emails and messages.

authentication-backend functional-programming keycloak notifications reactor-core webflux

Last synced: 07 Jun 2026

https://github.com/pakoito/rxerroralgebra

android functional-programming java

Last synced: 27 Apr 2026

https://github.com/ciavash/patternmatching

A Raku module for pattern matching

functional-programming library module pattern-matching raku raku-module rakulang

Last synced: 01 Oct 2025

https://github.com/inaiat/fastify-sample

Fastify example with funcional and typesafe approach

ava awilix dependency-injection esm esmodules fastify fastify-plugin functional-programming mongodb mongodb-driver mongodb-native-driver neverthrow papr plugins test

Last synced: 31 Jan 2026

https://github.com/nthnn/wtfc

Playful language extension for C and C++ that introduces unconventional and humorous macros aims to add a touch of creativity.

c c-programming c99 cpp cpp11 embedded-language functional-programming header-only language macros metaprogramming programming-language

Last synced: 10 Apr 2025

https://github.com/premshree/monads-typescript

Monadic Types and implementation for TypeScript 🚀

category-theory functional-programming javascript math monad monads typescript

Last synced: 06 Oct 2025

https://github.com/higordiego/tester-lap3d

Teste de Seleção para desenvolver Back-end

functional-programming mongodb mongoose nodejs

Last synced: 21 Aug 2025

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

Last synced: 23 May 2026

https://github.com/eikek/binny

Scala library for dealing with binaries/blobs in databases

fp functional-programming jdbc scala scala-library

Last synced: 08 Mar 2026

https://github.com/this-amazing-amy/kaleido

Simple webapp state management with streams and lenses.

frp functional-programming mithril react state-management webapp

Last synced: 06 May 2025

https://github.com/arthurxavierx/ebook-category-theory

Bartosz Milewski's Category Theory for Programmers as an eBook

book category-theory ebook functional-programming haskell types

Last synced: 09 May 2025

https://github.com/airtucha/board

Experimental Back-end framework for Elm

backend elm fp functional-programming http

Last synced: 05 Oct 2025

https://github.com/frees-io/sbt-freestyle

sbt-plugin for Freestyle projects

freestyle functional-programming monads sbt-freestyle sbt-plugin scala

Last synced: 06 Oct 2025

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.

chain-operation functional-programming linq typing

Last synced: 17 Mar 2025

https://github.com/mamuz/message-bridge

Message bridge to support a decoupled event driven and aspect oriented application

aspect-oriented-programming decoupling event-emitter functional-programming

Last synced: 07 Oct 2025

https://github.com/smallibs/hpas

Functional ADT And Asynchronous stuff in Java

asynchronous functional-programming monadic-interface

Last synced: 07 Oct 2025

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/kanitsharma/elvish

A functional, reactive and some what type safe javascript library to build UIs, inspired by Elm

elm elm-architecture functional-programming inferno javascript union-types

Last synced: 09 Oct 2025

https://github.com/ucsd-progsys/yunounderstand-data

A collection of novice interactions with the OCaml top-level.

functional-programming homework homework-problem ocaml user-study

Last synced: 12 Apr 2025

https://github.com/endle/ironcamel

The "most functional" imperative programming language and a toy intepreter.

functional-programming programming-language

Last synced: 23 Jun 2026

https://github.com/slurmulon/flap

:rooster: Guard clauses for JS

clause functional-programming guard guard-clauses pattern-matching

Last synced: 20 Jul 2025

https://github.com/mrdimosthenis/creative-scala

Translation of "Creative Scala" to Greek

ebook functional-programming scala

Last synced: 09 Apr 2025

https://github.com/airt/ninety-nine-problems

haskell exercises

exercises functional-programming haskell-learning

Last synced: 08 Apr 2026

https://github.com/klahap/kothon

Enhance Python with Kotlin's Sequence class and functional programming for efficient, expressive data pipelines.

data-processing functional-programming kotlin-sequences lazy-evaluation python type-hints

Last synced: 12 Oct 2025

https://github.com/qbixxx/lambdacalculusengine

Lambda interpreter built in Scala. Supports CbN, CbV and Free Variables calculations.

functional functional-programming lambda lambda-calculus lambda-function lambda-functions sbt scala scala3

Last synced: 07 May 2025

https://github.com/guillempuche/gpt-rescript

ReScript assistant for GPT4

bun functional-programming gpt gpt-4 javascript rescript rescript-bindings rescript-lang rescript-react typescript

Last synced: 26 Oct 2025

https://github.com/loophp/church-encoding

Church encoding in PHP

church-encoding educational functional-programming learning

Last synced: 06 May 2025

https://github.com/uncledave/simplefunctionalextensions

Simple functional extensions for C#. Lightweight and doesn't hold your hand.

csharp functional-programming result

Last synced: 17 Aug 2025

https://github.com/owlbarn/tutorial

Owl Tutorial

analytics book data-science functional-programming numerical ocaml owl scientific-computing tutorials

Last synced: 03 May 2025

https://github.com/crabby-lang/crabby

Crabby, the new programming language of the modern programming era.

functional-programming modern programming-language project pythonic rust

Last synced: 05 Apr 2025

https://github.com/leolanese/functional-programming-buzzwords

Short definitions of Functional Programming key concepts

function-composition functional-programming immutability javascript paradigms typescript

Last synced: 10 Apr 2025

https://github.com/exbotanical/idl

A Lisp that leverages continuation-passing style and tail call optimization to dramatically enhance JavaScript runtime performance. interpreter, runtime, and transpiler

continuation-passing-style custom-programming-language functional-programming lisp-dialect lisp-variant reducer-pattern scheme-dialect transduction