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
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https://github.com/bensimmers/matchly

TypeScript utility for pattern matching in typescript - Inspired by F# match

functional-programming library typescript

Last synced: 23 Jun 2025

https://github.com/invrtd-h/ffffff

JS의 underscore 라이브러리를 그대로 C++로 구현하는 프로젝트입니다

cpp cpp20 functional-programming

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https://github.com/elenavanengelenmaslova/injectfunctionsspringannotations

Inject Kotlin functions in Spring Boot

annotations functional-programming functions kotlin spring-boot

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https://github.com/arnaudsm/array-deluxe

Superpowers for your JavaScript arrays 🦸

array functional-programming groupby list pipes

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https://github.com/rudxain/fastlisp

This is not mine. It's an orphan fork

functional-programming implementation lambda-calculus lisp minimalist pure-functional specification transpiler

Last synced: 19 Aug 2025

https://github.com/borisskert/lazy-stream

A lazy stream implementation with some cool methods known from functional languages

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Last synced: 22 Jun 2025

https://github.com/simbathesailor/sample-project-react

Sample add, delete, edit list Reactjs

functional-programming pure-function reactjs

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https://github.com/aaron-creator/java_functional_programming

Examples for learning Streams, functional ptogramming with Java8.

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https://github.com/sofisar/c--_playingwithnumbers_spring-2022

This program allows the user to choose to compute all the cousin prime pairs less than a number they input, compute if a number is a perfect number, or quit.

c-plus-plus functional-programming loops menu-driven

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https://github.com/ayrtonbsouza/elixir-fundamentals-reports-generator

This is an application developed as a lesson for Elixir Ignite Bootcamp, proposed by RocketSeat.

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https://github.com/waf/montecarlo

Monte Carlo approximation of π, written in a functional programming style.

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https://github.com/markpurser/es6-defender

ES6 Defender

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https://github.com/atomicptr/phonad

Building blocks for functional programming in PHP, inspired by Haskell.

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https://github.com/mtumilowicz/scala-zio2-partially-applied-types-workshop

Scala - introduction to partially applied types based on zio example.

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https://github.com/scalawilliam/syslog-ac

Scala FS2-IO-UDP syslog server implementation for ActionFPS

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https://github.com/yanm1ng/lodash-rebuild

lodash makes JavaScript easier, so let's rebuild it for fun and practice !!

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https://github.com/kenato254/ts-option

The Option type is a powerful tool for handling values that may or may not be present, inspired by functional programming languages like Rust and Haskell. It provides a type-safe way to avoid common errors associated with null or undefined by explicitly representing the absence of a value.

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https://github.com/rabestro/roman-arabic-calculator

This code is a proof of concept. The calculator can work with both Arabic (1,2,3,4,5 ...) and Roman (I, II, III, IV, V ...) numbers.

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https://github.com/amsh4/livesketch

Real-time collaborative drawing app with React UI, Elixir backend, and Python analytics. Enables seamless sketching, anomaly detection, and scalable infra.

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https://github.com/jleahred/idata

small tools to reduce mutability and program more functionally with Rust

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https://github.com/willmcpherson2/soop

The Soop Language

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

This repository hosts the "Goodies To Go (G2G)" project, an F#-based online ordering system for a canteen, demonstrating domain modeling and basic functionalities.

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https://github.com/dopenchills/fp-vm

Vue.js application with functional programming patterns

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https://github.com/noor188/how-to-code-simple-data

Software development foundation

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https://github.com/kpebedko22/labs-functional-programming

Лабораторные работы по дисциплине «Функциональное программирование»

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https://github.com/mszarlinski/scalaz-learning

Welcome to an amazing world of functors and monads

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https://github.com/roxtra1/sea-battle_console_game

Игра "Морской бой"

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https://github.com/keepzen/pipe.js

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https://github.com/r8vnhill/root-of-haskell

Haskell implementation of the square root series approximation

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https://github.com/nshkrdotcom/gepa_ex

Elixir implementation of GEPA: LLM-driven evolutionary optimization using Pareto-efficient search for text-based systems. Features OpenAI/Gemini integration, BEAM concurrency, OTP supervision, 218 tests with 75% coverage.

ai-optimization artificial-intelligence beam concurrent-programming elixir erlang erlang-otp evolutionary-algorithms functional-programming gemini genetic-algorithms llm machine-learning metaheuristics multi-objective-optimization openai optimization otp pareto-optimization prompt-optimization

Last synced: 20 Jan 2026

https://github.com/critocrito/namefn

Set the name property of a function.

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https://github.com/Shohail-Ismail/Haskell-Texas-HoldEm

A Haskell implementation of Texas Hold'em created for my COM2108 (Functional Programming) module. This project includes a working Texas HoldEm Poker game with additional features such as predefined player strategies (random, passive, aggressive) and an option for human input to play the game.

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https://github.com/mode89/fdtrie-js

Persistent data structures with fast diff

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https://github.com/iambasantarai/aalu-cross

Haskell implementation of tic-tac-toe game

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https://github.com/georgiifirsov/patternmatching

Short header-only library that allows you to use pattern matching in C++. Written in pure standard C++14.

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https://github.com/vastavikadi/haskell

The language which will make you fall in love with Functional Programming

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https://github.com/vastavikadi/elixir

A personal journey into learning Elixir covering basics, functional programming concepts, and small hands-on projects. Scale to billions, real-time and what not.

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https://github.com/zoul/elm-currency-converter

Trivial currency conversion apps showcasing the Elm architecture

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https://github.com/kanitsharma/chikara

Monorepo of Mangaflux's frontend and microservices

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https://github.com/sushantpt/understanding_delegates

Code snippets of "Delegates in C#"

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https://github.com/grahamstrickland/functional_lean

Examples and exercises from "Functional Programming in Lean" - David Thrane Christiansen

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

An implementation of the Reader Monad in Kotlin

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https://github.com/jungstershark/clojurecipe

ClojuRecipe is a Clojure-based command-line tool that suggests recipes using the Edamam API. It leverages functional programming principles to provide reliable recipe suggestions based on the ingredients you have available.

api clojure command command-line-tool edamam-api functional-programming immutable java leiningen pure-functions recipes

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https://github.com/minoddein/the-vigener-cipher-and-the-feistel-network

The Vigener cipher, written as part of a laboratory work

cipher-algorithms feistel-cipher feistel-network functional-programming

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https://github.com/bsgbryan/pug

A game engine targeted for procedural content coded in a functional style

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https://github.com/wanjinyoo/sml

Functional programinng

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https://github.com/arduriki/servy

An HTTP server made with Elixir to learn functional programming

elixir elixir-lang elixir-language elixir-programming-language functional-programming http http-server iex mix

Last synced: 08 Sep 2025

https://github.com/davidkhahn/advanced_javascript

Closures & Prototypal Inheritance, Object Oriented Programming, Functional Programming, Asynchronous Javascript, Error Handling, Modules

asynchronous-programming closures error-handling functional-programming javascript modules oop prototypal-inheritance

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https://github.com/adityaathalye/slideware

Where the conference talk slides are...

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https://github.com/avvessalom/itmo-functional-programming

Лабораторные работы по функциональному программированию (ИТМО, ПИиКТ-СиППО, 4 курс).

clojure functional-programming

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https://github.com/jvspeed74/python-workshop

This repository hosts various Python scripts that I've created on my journey to master the programming language. Each script contains a README.md file documenting the purpose and features of each script.

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https://github.com/tauseefk/rex

Everything is streams.

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https://github.com/zachahn/proc_party

Make your objects act like procs!

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https://github.com/imtjl/fp-red-black-tree-dict

TreeDict - Implementation of Dict based on Red Black Tree in Elixir

data-structures elixir functional-programming red-black-tree

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https://github.com/alex11br/myfsharpsnake

Yet another snake game witten in F#. This one has 2 versions: one that runs in the terminal, and a webapp.

functional-programming game snake snake-game

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

This repository hosts the "Goodies To Go (G2G)" project, an F#-based online ordering system for a canteen, demonstrating domain modeling and basic functionalities.

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https://github.com/federicobruzzone/99-ocaml-problems

Implementations of the 99 problems in OCaml.

99problems functional-programming ocaml problem-solving

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https://github.com/olekscode/montecarlointegration

Scala implementation of sequential and parallel Monte Carlo method for computing a deterministic numerical integration of functions

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Last synced: 05 Apr 2025

https://github.com/wilberquito/johntheartist

Template John the artist

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https://github.com/leostera/restruct

💾 Purely Functional and Compact Data Structures for ReasonML

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https://github.com/dtsaryov/csc-haskell-fp

The repository contains lecture notes and practical task implementations from FP with Haskell course

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https://github.com/king-prawns/ramda-sfs

Ramda - Start from scratch

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https://github.com/nestarz/pipe

TypeScript Pipe Operator with Async Support

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Last synced: 16 May 2026

https://github.com/chrisbenincasa/pure-redis

Pure functional Redis protocol implementation using Cats

functional functional-programming redis scala

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https://github.com/barcek/awb

cultivate HTML | monadic DOM tree transformer | frontend generation | library & command line tool | Node.js

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https://github.com/tristanpenman/haskell-exercises

Stuff I've worked through while learning Haskell

functional-programming haskell

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https://github.com/erthium/primes-and-others

General tests with prime numbers

combinatorics cpp cpp11 functional-programming makefile math mathematics prime-numbers python python3

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https://github.com/apulbere/lagos

a collection of Java 8+ samples

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https://github.com/david-lapadula/javascript-essentials

Fundamentals of JavaScript

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https://github.com/khaledashrafh/petpal-simulation

The PetPal Simulation is a console-based application that simulates the experience of adopting and taking care of a pet. Users can adopt a pet, feed it, play with it, and check its status. The game tracks the pet's hunger and happiness levels, and it ends if these levels drop to critical values.

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Last synced: 28 Apr 2026

https://github.com/bcherny/mapf

Ergonomic Promise.all

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https://github.com/bennypowers/power-functions

A wee functional library intended half for entertainment, half for personal edification.

functional-programming javascript

Last synced: 27 Mar 2025

https://github.com/tmccombs/rust-cons

A persistent single-linked list for Rust

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Last synced: 21 Mar 2025

https://github.com/vitoralvesp/check-verificator

Repositório dedicado ao Projeto "Está em Xeque?", da disciplina Paradigmas de Linguagens de Programação, para o estudo de Paradigmas Funcionais utilizando Haskell.

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Last synced: 21 Mar 2025

https://github.com/vadniks/computercomponentsdesktopapp

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Last synced: 17 Feb 2026

https://github.com/oezg/minesweeper-kt

Minesweeper game

functional-programming kotlin

Last synced: 25 Jan 2026

https://github.com/r8vnhill/scala-dibs

Code examples for the Design and Implementation of Software Libraries course (DIBS), focused on Scala. Covers OOP, FP, testing, and more — fully in English, built with SBT and Scala 3.

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https://github.com/corporatepiyush/expression-problem

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https://github.com/sinkaszab/limbda

Functional programming helper library.

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https://github.com/prncss-xyz/flua

iterator composition in lua

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https://github.com/deepcloudlabs/javascript-programming-essentials

Javascript Programming Essentials

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https://github.com/zinthose/pureshell

"A Python module for impartial computation. Implements the Functional Core, Stateful Shell pattern.

functional-programming pygame python python3

Last synced: 24 May 2026

https://github.com/rcardin/road-to-fp-in-scala

A bunch of code that I used to learn the topic of functional programming in Scala.

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https://github.com/sahidev1/calculator

A calculator for arithmetic mathematical expressions, developed from scratch with lexer, parser and evaluater

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https://github.com/shitu13/javascript-projects

This repository contains a collection of JavaScript projects that demonstrate a range of skills and concepts, from fundamental programming principles to advanced web development techniques.

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Last synced: 14 Mar 2025