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/r8vnhill/root-of-haskell

Haskell implementation of the square root series approximation

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https://github.com/kanitsharma/io

Lightweight monadic abstraction to "purely" handle side effects in javascript.

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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/deepcloudlabs/javascript-programming-essentials

Javascript Programming Essentials

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

Small utils for Functional Programming with Promise.

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https://github.com/supermacro/hangman

Hangman game

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https://github.com/mertturkmenoglu/f-sharp-examples

F# Language Examples

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https://github.com/reubano/devcraft-workshop

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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/peter-roh/ocaml

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Notes and code snippets from Fun Fun Function videos

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https://github.com/ekewn/undset

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https://github.com/calvinlfer/zio-intro-game-solutions

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https://github.com/oliver021/helppad-net

Versatile .NET Toolkit: A Comprehensive Set of Miscellaneous Helpers, Classes, and Utilities

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https://github.com/mdh266/poissondistributioninscala

Sampling From Poisson Distribution With A Functional Approach

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https://github.com/matt-mcmahon/functional

A learning-friendly functional library with a focus on clear source-code and readable function signatures.

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https://github.com/mx1700/kotlinfunctional

Kotlin 函数式编程学习

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https://github.com/jaalonso/cursos_de_pf_con_scala

Recopilación de cursos de programación funcional con Scala.

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https://github.com/sacoo7/objective-c-exercises

Exercises to DEEP learn objective C

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https://github.com/s3b4s/html-monparser

An HTML parser implemented using the monadic parser monpar.

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

Complimentary materials for the "Functional programming" course of Computer science 2022 - 2023.

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https://github.com/alexandrugg/fp-scala-specialization

Projects completed for the Functional Programming in Scala Specialization

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https://github.com/tttardigrado/hsderiv

Haskell implementation of Brzozowski derivatives for regular expressions.

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Functional programming assignments done in Elm

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https://github.com/austinrwarner/monadic

Functional programming in Python using Monadic types

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Exercises in the Scheme programming language.

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The Hutton cipher implemented in TypeScript.

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Code and exercises of the book Implementing Functional Languages: a tutorial by S.P. Jones and D. Lester

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https://github.com/ruivieira/boom.ts

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https://github.com/ajitjha393/fp-magic-lens

Dynamically Generate `setter` from the `getter` for lenses

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https://github.com/palutz/calculateseries

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My personal webcam 😜💦

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Functional Programming Support Modules

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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/ggiuffre/machine-lambda

Purely functional implementation of SGD on feed-forward neural nets

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https://github.com/asarkar/haskellings

Haskell Programming Course

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https://github.com/harmim/vut-flp-project1

Functional and Logic Programming - Functional Project - SIMPLIFY-BKG

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https://github.com/mfarsikov/tuples

Java 8 Tuples

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Haskell related learnings and code

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https://github.com/yigithankarabulut/ft_turing

The goal of this project is to write a program able to simulate a single headed, single tape Turing machine from a machine description provided in json.

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https://github.com/santiagolizardo/tonato

Converts strings to the NATO alphabet (Haskell)

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https://github.com/bharatlal124/alarm_clock_project

This is a simple Project on Alarm Clock : )

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https://github.com/yingtu35/space-invaders

An functional programming language-based shooting arcade game

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https://github.com/shogunpurple/elmcohol

App that allows you to view information about alcohol of the world - Type in and find a country or city from the search bar and see all the drinks from there.

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https://github.com/trayanaboykova/java-advanced

Tasks from my course Java Advanced at SoftUni

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https://github.com/mpellouin/wolfram

Epitech second year project part of the functional programming module. Wolfram is an implementation of elementary cellular automaton written in Haskell

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https://github.com/pallad-ts/assert-helper

Assertion helper for regular functions with wrapper for monads

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https://github.com/kokorinilya/math_logic

Homeworks for math logic course in ITMO University

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https://github.com/albertoadami/user-api-service-example

Example of REST APIs service using http4s library

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https://github.com/lit-forest/pure-fantasy

常用的monad集合

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https://github.com/mohamed-taha-essa/programming-in-python-week3

Learn about the paradigms of procedural programming and the associated logical concepts. You'll explore functional and object-oriented programming, and get an introduction to algorithms

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https://github.com/skippia/fp-playground

Explore opportunities of functional programming through the prism of typescript and `fp-ts`

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https://github.com/palutz/fslinearalgebrarefresh

Linear Algebra refresh using fsharp

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https://github.com/codefeathers/poly

Assisted polymorphism for JavaScript

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https://github.com/sandromaglione/nextjs_pokemon_memory_card_game

Memory Card Game using nextjs, typescript, jest, react-testing library, and fetching Pokemon from pokeAPI

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https://github.com/sandromaglione/nextjs-tennis-game

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https://github.com/alessandrokuz/proverbio

Python program to split a proverb in even and odd characters (and to merge them back together).

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

Игра "Морской бой"

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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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