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: 2026-06-27 00:11:42 UTC
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https://github.com/antononcube/raku-llm-functions

Raku package for functions and function objects to access, interact, and utilize LLMs.

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https://github.com/rcardin/reader-monad

A simple implementation of the Reader monad

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https://github.com/zhibirc/dev-random

:notes: notes/code/thoughts

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https://github.com/domix/dmx-fun

This repository contains a collection of implementations and experiments exploring functional programming constructions in Java.

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https://github.com/rsachdeva/reactnd-mobile-flashcards

React Native based Deck and Cards App from Scratch with Quiz, Scoring, Seeing Answers Support

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https://github.com/thma/clean-architecture-with-functions

Clean Architecture in Haskell. Using higher order functions for 'dependency injection'

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https://github.com/lazywithclass/project-lamp

Source code for book content and site

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https://github.com/kourouklides/scala-examples

Example code in Scala

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https://github.com/deepcloudlabs/dcl113-2021-sep-16

DCL-113: Functional Programming in C++17

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Functional programming in JavaScript

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Some Suites for munit-cats-effect

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Small todo app with reasonml

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functional layered architecture implementation example

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https://github.com/nullobject/memory

A game of memory.

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Image editing desktop application written in Scala

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This project was created to learn reactive programming, functional programming and custom api gateway with Spring Cloud Gateway

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https://github.com/vickvey/complex_numbers

I have implemented Complex Numbers and some of the basic operations on them.

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Collection of algebraic data types to use with Flow

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https://github.com/alansastre/java-functional-method-reference

Programación funcional y métodos referenciados en Java

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A turtle, what else?

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snake game built with just react hooks

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Customer & order management

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https://github.com/valentindeaconu/terraform-provider-func

Supercharge Terraform with functional programming. 🚀

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https://github.com/lebrancconvas/functional-programming

Functional Programming Practice.

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https://github.com/matejamaric/tinyc-in-go

A Go implementation of Marc Feeley's TinyC

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https://github.com/blakek/make-lookup

📒 Make a lookup object from an array of objects

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https://github.com/davidchase/typed-future

typed-future experiments

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https://github.com/leejss/funtional-ts

It's a functional programming playground.

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https://github.com/chicio/katas

💪🏋️‍♂️ A collection of katas I did to hone my programming skills. 🏋️‍♂️💪

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👂 RxJS operator for realtime speech-to-text (STT/S2T) using AWS Transcribe

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https://github.com/papirosko/scats

Useful scala classes in typescript

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https://github.com/federicobruzzone/setup-ocaml-project-with-dune

This repository provides a basic setup for an OCaml project with using Dune as the build system. It aims to provide a simple and straightforward structure for your OCaml project, allowing you to focus on writing code without the complexities of a build system.

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https://github.com/adamouization/lambda-calculus-proofs

Short proofs about using the Lambda-Calculus as a Programming Language (2017)

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https://github.com/pisces/functionalswiftkit

This kit help you can write code as functional programming.

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https://github.com/fitter0happier/lambda_parser

Lambda Calculus parser

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https://github.com/diegovdc/trd

A function for composing, inspired by Clojure's thread macro.

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https://github.com/bsoptei/photonix

Solutions for functional optics.

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https://github.com/gavinhome/done-redux

A combined .Net7 state management framework.

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https://github.com/joaopaulopmedeiros/learning-functional-programming

Repository for learning functional programming with JS.

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https://github.com/rcdilorenzo/tictactoe

A reinforcement learning algorithm with a touch of functional programming

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https://github.com/taharachedi/math-game

🎮 Fun Math Game in C++ ➗✖️➕➖ Challenge yourself with math problems, track your score, and level up! 🏆

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https://github.com/ashwinvis/experiments-with-haskell

A journal for the journey to enlightenment

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https://github.com/mahmoudhanafy/scala-specialization

my solutions to assignments

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https://github.com/zhifengzhang-sz/qi-v2-qicore

QiCore v4.0 Foundation - Mathematical foundation types and core modules for modern applications

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https://github.com/tonivade/purecfg

Pure Functional Configuration Library

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https://github.com/joelburget/hazel

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https://github.com/baguilar6174/flutter-crypto-app

This application connects to coincap API to get cryptocurrency changes in real time, this project implements clean architecture for organization and freezed to use functional programming.

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https://github.com/jaalonso/examenes_de_pf_con_haskell_vol6

Exámenes de programación funcional con Haskell. Vol. 6 (Curso 2014-15)

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https://github.com/pmuens/fp

Doing some Functional Programming with Scala

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https://github.com/marcosh/effector

A Php library to write effect aware code.

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https://github.com/rkoeninger/jenga

Basic stack language

concatenative functional-programming repl

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https://github.com/phrenotype/lambda

Converts functions to lambdas

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https://github.com/zeknikz/basicfunctionlanguage

A basic functional programming language that focuses on basic mathematical functions.

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https://github.com/bertrand31/pandore

📦 The functional files manipulation library Scala was missing

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https://github.com/lagenorhynque/functionalprogramming

Study notes on functional programming

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Exámenes de programación funcional con Haskell. Vol. 4 (Curso 2012-13)

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https://github.com/astrolabsoftware/astrolabsoftware.github.io

Website for AstroLab

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https://github.com/mstniy/computed.dart

A performant and flexible reactive programming framework for Dart

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https://github.com/snowy1803/suffix-lang

A type-safe functional programming language using Reverse Polish Notation

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Exámenes de programación funcional con Haskell. Vol. 3 (Curso 2011-12)

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https://github.com/05st/project-euler

My Haskell solutions for Project Euler problems.

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https://github.com/theow03/hazel

LLVM Compiler for Hazel, a Functional paradigm declartive programming langauge

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https://github.com/javiorfo/goyeneche

Go library with functional programming utilities (WIP)

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https://github.com/coderaiser/apart

partial function application

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https://github.com/jaalonso/examenes_de_pf_con_haskell_vol7

Exámenes de programación funcional con Haskell. Vol. 7 (Curso 2015-16)

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https://github.com/zkfmapf123/express-template

node express server boiler-plate v2

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https://github.com/krishnagopinath/separationlogic

a system that helps formally verify the correctness of concurrent programs, integrated into a toy programming language called Imp.

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https://github.com/bredalis/jsfunctionalprogramming

✨ Functional programming in js ✨

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https://github.com/el3um4s/match

Alternative to JavaScript’s switch statement with a functional twist

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https://github.com/matbesancon/pagerank

A functional, parallel PageRank implementation in Scala

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https://github.com/pavelannin/monadic-swift

Monadic is a distributed Swift framework that provides a way to write code from functional programming

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https://github.com/mattiamtzlr/epfl-cs214-course

Course notes for EPFL CS-214: Software Construction

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https://github.com/darky/klubok

Do notation pipes for Promise-based or pure functions which easy to mock

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https://github.com/js-factory/router

An opinionated functional programming based routing module

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https://github.com/franciscoengenheiro/space-invaders-app

A desktop application to play the classic space invaders arcade game with gameplay modifiers and difficulties

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https://github.com/paladitya/jparser

A Java library to give YACC like facility

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https://github.com/ngoc199/simple-koa-todo

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https://github.com/drag13/whendo

Small function that can be used instead if-then statement in functional style programming with JavaScript

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https://github.com/rxtoolkit/linear16

🎶 RxJS operators for streaming to/from LINEAR16 audio format

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node based csv to json - adding functional style with es6/es7 usage

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https://github.com/davidbonnet/babel-plugins

🐠 Set of Babel plugins to enhance support of functional programming.

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https://github.com/zhb2000/maybe-extension

Functional interfaces and useful extension methods for "Maybe types" in C++ (e.g., std::optional, pointers, and smart pointers).

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https://github.com/skarab42/result

Provides a robust and type-safe way to handle success and failure outcomes in TypeScript, utilizing symbolic indexing for clear result differentiation.

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