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: 2026-07-05 00:08:24 UTC
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https://github.com/lamdalib/rassal

Create random values functional way.

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https://github.com/elm-athlete/setters-generators

Generate Setters from your Elm Field Names!

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https://github.com/derektypist/build-a-spreadsheet

In this spreadsheet application project, learn about parsing and evaluating mathematical expressions, implementing spreadsheet functions, handling cell references, and creating interactive web interfaces.

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https://github.com/upi20/php_dasar

PHP Fundamental

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https://github.com/mp81ss/apply

apply function implementation for C language

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https://github.com/baberrehman/haskell-for-great-good

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https://github.com/jesuisstan/42-piscine-ocaml

OCAML language study: this project is split into many small projects (modules), with each day introducing a new concept in the language, paradigm, or technology you have chosen to work on

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https://github.com/jjteoh-thewebdev/html-canvas-snake

Nokia classic Snake game built with HTML Canvas

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https://github.com/koheing/stream-executor

functional stream programming library

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

Fundamentals of JavaScript

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https://github.com/pmuens/htdp

How to Design Programs

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https://github.com/jtucker/fp-trailblazers

Repository of notebooks that I use for my functional programming talk `Functions! Functions! Functions!`

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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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A minimal library that provides a functional pipeline mechanism in typescript

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Functional Programming - University Coursework/Homework

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Raise multiple errors without throwing

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Finance Management App A powerful and intuitive finance management app built with Rails 7 and Bootstrap 5.

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https://github.com/hoetty/marble

A simple and compact functional programming language

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

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

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The Joy of Kotlin book exercises

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A persistent single-linked list for Rust

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S-99: Ninety-Nine Scala Problems

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Lean playground for programming language modeling tooling.

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https://github.com/krzysiou/scala-labs

Scala course at my university

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https://github.com/wayneseymour/learnyouahaskell

Trying to learn Haskell again :)

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https://github.com/iagocarmona/functional-language-algorithms

Repositório para armazenar trabalho da matéria Aspectos de Linguagens de Programação do curso Ciência da Computação utilizando linguagens funcionais e imperativas para comparar desempenhos.

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A dire flow component for displaying product nutritional info, ingredients and cooking instructions on Spatula Foods

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https://github.com/matthewstyler/chain_lua

A small simple functional programming library for Lua

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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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https://github.com/pratik-123/generics

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https://github.com/vadniks/computercomponentsdesktopapp

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

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https://github.com/mattpolzin/mayberequired

This library introduces the Required and MaybeRequired types as companions to the built-in Optional type

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https://github.com/john-science/sicp-racket

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https://github.com/bartstc/looper-js-library

Simple and very modest library written based on functional programming inspired Underscore.js library

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https://github.com/snowdutra/python_funcional

Aqui você vai encontrar todos os meus projetos em programação funcional em Python em andamento e concluídos. 😊

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

Javascript Programming Essentials

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https://github.com/marcbudd/functionalfibuautomat

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https://github.com/lcsrodriguez/ensiie_s2_projet_prog_fonc

Git repository containing all the resources related to a school project on DNA/RNA strands construction Phylogenetic tree simulation using Functionnal Programming

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https://github.com/keidrun/fantasy-utils

Small utils for Functional Programming with Promise.

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https://github.com/bk408/unlocking-the-power-of-javascript

This repo represents the topics and Unlocking the Power of JavaScript.

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https://github.com/tomiok/rosetta

Library with many utility methods.

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https://github.com/ghurtchu/msgflow

:speech_balloon: Persistent Chat Server. Tech used: Scala, Java, PostgreSQL.

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https://github.com/imteekay/jobs-algorithm

Jobs Algorithm

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https://github.com/bmmunga/BrainCaml

An OCaml-based interpreter for the Brainf*ck esoteric programming language.

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https://github.com/kattulib/katip

[IN DEVELOPMENT] Katip is a minimal functional logger library

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https://github.com/TheAlexLichter/fp-in-php

A talk about functional programming in PHP

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https://github.com/github-dev12345/dom-manipulation-crud-operation-app

Finally i make a CRUD-Operation APP,😉😎 with the help of JavaScript, To learn the CRUD System ( Create, Read, Update, Delete), )

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https://github.com/t2wain/electricalfunc

Electrical power engineering calculation (a functional programming design)

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https://github.com/delonnewman/monad-maybe

A Ruby implementation of Haskell's Maybe Monad

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https://github.com/mountain/zot

zot: the esolang originally invented by Chris Barker and wrapped with QuickJS

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https://github.com/banghuazhao/swift-super-tiny-compiler

Swift implementation of The Super Tiny Compiler - transforms LISP syntax to Swift function calls

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https://github.com/separatrixxx/fp_labs_6_sem

👓 Laboratory work for the 6th semester of MAI on functional programming

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https://github.com/shahaf-f-s/multithreading

A python module for creating multithreading processes easily, in a more Pythonic way.

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https://github.com/exbotanical/goldmund-sh-ii

Personal website :: Vue 3 | Go | Postgres | GraphQL

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https://github.com/sobakavosne/solve-the-word

FP Engineer task

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https://github.com/mrseanbaines/fun-fun-function

Notes and code snippets from Fun Fun Function videos

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https://github.com/lamaabdeldayem/peg-reversal-game

A Haskell board game where the goal is to flip all black pegs to white, demonstrating recursion and immutability.

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https://github.com/boogieman2k/viper-ios-tutorial

This is a first review of VIPER Architecture on iOS using swift 4

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https://github.com/mahmud035/courses-by-colt-steele

This repository provides a comprehensive guide to advanced JavaScript concepts and techniques.

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https://github.com/dbosoft/dbosoft.functional

Functional helpers based on language.ext

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https://github.com/fabriziomettini/dsa-ii

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https://github.com/chrismichaelps/computer-science-problem-solving

Learning haskell Language solving computer science programming problem. This implies having a better knowledge about how language works and how to understand better how functional languages work.

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