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: 2026-07-01 00:11:49 UTC
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https://github.com/amillert/camodular

Ocaml interpreter (Sedlex tokenizer + Menhir parser) of modularized classes with two means of inheritance.

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https://github.com/zaikoxander/discover

Programa Discover da Rocketseat

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https://github.com/aviabird/elixir-beginner

Repository to get started with Elixir

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https://github.com/appsweet-co/debug

Makes your console logs much better

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https://github.com/mqtth3w/paradigmilinguaggianalisidati-unipr

Paradigms and languages for data analysis (Haskell, Python, Rust). 2024.

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https://github.com/anurag1101/the_perfect_guess

Perfect Guess is a simple number guessing game built with Python. Players try to guess a randomly generated number between 1 and 100, receiving feedback on whether their guesses are too high or too low. The game continues until the correct number is guessed, with an option to play again. Enjoy testing your guessing skills!

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https://github.com/shakadak/ft_turing

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https://github.com/dominicegginton/functional-reader

A purely functional, dependency-free dependency injection library for TypeScript based on the Reader Monad.

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https://github.com/vevdokimovm/polymorphic-vector-cpp

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https://github.com/marinaa13/pairing-heaps-racket

Functional implementation of pairing heaps and their applications in Racket, including sorting, movie ranking, and stream-based median computation, using recursion, higher-order functions, and pure functional design

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https://github.com/palutz/scalaexercises

Notes, code and worksheets from scala-exercises training (scala-exercises.org)

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https://github.com/skippia/starter-templates

Production-ready set of templates for smooth DX (Typescript / FP-TS / Nest.js)

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https://github.com/dzangfan/evason

A lighweight programming language mixing JSON and functional features together

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Iterate over anything with Iterify!

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https://github.com/johnpaulada/maybe

A simple, lightweight, Maybe implementation in JavaScript.

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https://github.com/those-otter-programs/functional_interface_bean_mapper

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ZTM - JavaScript The Advanced Concepts

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https://github.com/geekeast/intro-to-lodash-fp

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https://github.com/slava0135/stg-example

Example Haskell program translated to STG and compiled to C

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https://github.com/bee-produced/bee-built

A collection of modular libraries tailor-made for Kotlin enthusiasts.

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https://github.com/alex-aralis/yank-down

Yank a curried parameter down to be the first argument passed.

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https://github.com/team846/code-2017

Code base for our 2017 robot - Punk Monkey

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IO monad for Svelte

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https://github.com/zyad-eltayabi/atm-system

💵 The system allows users to quickly withdraw predefined or custom amounts, deposit funds, check their balance, and securely log out.

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https://github.com/martianoff/rules-gala

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https://github.com/ricardorobledo/programacionfuncional-python

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https://github.com/beyondnetperu/js-functional

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https://github.com/oelin/hyper-reducer

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https://github.com/dictybase-docker/crusher

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https://github.com/f-z/functional_programming

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https://github.com/just-styx/mocking

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https://github.com/wlgs/functional-programming-course

Functional Programming Course 2021/22 at AGH UST. The language used was Haskell.

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https://github.com/chriniko13/scala-simple-tutorial

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https://github.com/martianoff/gala-acp

Transport-neutral Agent Communication Protocol for GALA: content-hash message identity, idempotent dedup, a delivery/liveness FSM, and a generic agent-run contract — with a Claude backend.

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https://github.com/rcardin/functional-portfolio

A toy implementation of a portfolio application that uses functional domain modeling and functional programming

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https://github.com/gregros/naff

Client-side DOM swiss army knife and switchblade.

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https://github.com/deepcloudlabs/dcl235-2020-may-11

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https://github.com/iampeterbanjo/alchemy

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https://github.com/dirkbosman/func_with_scala

Func / Functions / Fun with Scala :)

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https://github.com/qbarrand/ensiie-iprf-quadtree

An academic project about collision detection to learn the quadtree data structure and functional programming

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https://github.com/shybyte/rusty-13-ways-of-looking-at-a-turtle

Thirteen different ways of implementing a LOGO-style turtle in Rust

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https://github.com/sumanjitsg/redistil

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https://github.com/manoelcampos/fp-projeto-1-poligonos-flatmap

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https://github.com/asarkar/udemy-complete-haskell

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https://github.com/epicallan/p2h-ui

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https://github.com/codeconscious/unique-file-generator-fsharp

Create an arbitrary number of random, unique (by name and content) files.

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https://github.com/talesitf/hookinator

Servidor assíncrono de webhooks em OCaml, com foco em programação funcional, modularidade e arquitetura reativa.

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https://github.com/sergeysolovev/cs-operations

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https://github.com/kash1444/py_files

Here are some of my beginner codes to upskill my knowledge in python

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https://github.com/clifftech123/ts_fun_practice

Collection of small and enjoyable functional programming exercises in TypeScrip

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https://github.com/victorlga/payment-webhook-handler

A Clojure webhook handler for processing and validating payment events with SQLite persistence and HTTP callbacks for confirmation/cancellation.

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https://github.com/hecdelatorre/programacionfuncionalagenda

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https://github.com/thautwarm/xylearn

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https://github.com/constantiner/sibylla

Asynchronous Promise based functional style utilities with full TypeScript support

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https://github.com/mhashim6/kotlinheroes

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https://github.com/meragix/calx

⏱️ A lightweight, immutable, and fully tree-shakeable date manipulation library for Dart & Flutter. Functional-first core with zero-allocation opt-in extensions.

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https://github.com/rvarago/cpp_optional_extras

*EXPERIMENTAL* A handful of C++ utilities I wish std::optional<T> had

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https://github.com/rafaelvicio/pokedex-rxjs

Pokedex. Projeto utilizado para aprendizado de RxJS(Programação Funcional)

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https://github.com/milaziabchenko/minimo-website

Stylish photodiary | lifestyle | travel multi-page website created with modern features of HTML5, CSS3, and JavaScript, combining functional programming and OOP approaches

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https://github.com/rtorr/ts-fp

Typescript, eslint-plugin-fp, and vscode example

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https://github.com/asarkar/hackerrank-fp-haskell

Functional Programming code challenges on HackerRank

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https://github.com/yuriykravets/rockpaperscissors

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https://github.com/kczulko/astar

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https://github.com/jaandrle/fpubsub

PubSub pattern library with types support

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https://github.com/kevindasilvas/comments-kanban

Haskell microservice to add comments to a task in mini kanban project

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https://github.com/sgbasaraner/aoc2018

my advent of code 2018 solutions

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https://github.com/youstinus/toolsgo

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https://github.com/chocolacula/donotcopyanalyser

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https://github.com/al-ghaly/ruleengineusingscala

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