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: 2026-04-24 00:12:33 UTC
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https://github.com/doughtnerd/qwizard

A forms-building library

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https://github.com/psenger/functional-programming-examples-and-patterns

This is a set of Functional Programming Examples and Patterns

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Composable AJAX requests that return a Future Data Type

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https://github.com/ifkas/mars-dashboard-project

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https://github.com/kanitsharma/elm-giphy

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https://github.com/bensimmers/matchly

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

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

JS의 underscore 라이브러리를 그대로 C++로 구현하는 프로젝트입니다

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https://github.com/b00gizm/typed-chain

A type-safe way to combine interdependent functions into a callable chain

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https://github.com/leta91/intro-javascript-functional-programming

Learn About Functional Programming - freeCodeCamp Challenge

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

https://www.udemy.com/course/the-complete-haskell-course-from-zero-to-expert

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https://github.com/euler-b/firts_steps_with_elm

Repositorio destinado a ser la guia de inicio para entender este lenguaje

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https://github.com/beatrizmilz/2023-11-rday-colombia-purrr

Presentation for R Day Colombia 2023

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

Superpowers for your JavaScript arrays 🦸

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https://github.com/dirkbosman/func_with_scala

Func / Functions / Fun with Scala :)

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https://github.com/tkshill/adventofcode

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Haskell Book - Solutions in Haskell and in Scala

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

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Sampling From Poisson Distribution With A Functional Approach

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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/sandwwraith/fp-homework

Homework for FP ITMO course

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LINQ Extended Design. Additional C# extension methods (inspired by LINQ) and F# collection functions

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https://github.com/rolandtritsch/haskell-aoc-2017

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https://github.com/mooreniemi/proc_compose

:musical_score: Proc#compose

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https://github.com/joebobmiles/joebobmiles

My user readme.

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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/reubano/pyconza-tutorial

Jupyter notebooks and data for "Data Mining and Processing for fun and profit" PyConZA16 tutorial

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Scala FS2-IO-UDP syslog server implementation for ActionFPS

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StackOverFlow K-Means Analysis

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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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Declarative programming for PySpark workflows.

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https://github.com/turbaszek/ct4cs

Challenges from Category Theory for Programmers

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Curso sobre diseño e implementación de bibliotecas de software. Incluye sistemas de construcción, testing, OOP, genéricos, programación funcional y más, con Kotlin y Docusaurus.

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https://github.com/ronanyeah/ramda-workshop

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https://github.com/aloussase/webcam

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Haskell implementation of tic-tac-toe game

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Functional programming for Python

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Trivial currency conversion apps showcasing the Elm architecture

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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/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/jumpn/utils-array

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https://github.com/ghivert/papers

All articles published both on Medium or on my blog!

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https://github.com/priontoabdullah/simple-calculator-vanilla-js

🔢 A simple vanilla js Calculator. 🌎 Live demo: https://priontoabdullah.github.io/Simple-Calculator-Vanilla-JS/ 🙌

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Second homework for programming paradigms course

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https://github.com/isaacvando/functionalprogrammingsig

Resources for MCA Functional Programming SIG including Haskell Jupyter notebooks

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https://github.com/sobakavosne/structure-survey

Loading testing for structures: Native JS, Immutable.js, Mori.js, Lazy.js

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A toy implementation of head|tail destructuring for the Immutable library

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https://github.com/anicolaspp/nsource

A composable library for collections

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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/minoddein/the-vigener-cipher-and-the-feistel-network

The Vigener cipher, written as part of a laboratory work

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https://github.com/didierfranc/sweetch

Switch as a function

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

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https://github.com/adityaathalye/slideware

Where the conference talk slides are...

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

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

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

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Practicing in public 1. Kotlin 2. Web Server development 3. TDD 4. Functional-Programming Systems Design

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https://github.com/hyperifyio/gnd

Gendo Lang

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https://github.com/aleksandarskrbic/functional-rest-api-example

Purely Functional REST API showcase application

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

Implementations of the 99 problems in OCaml.

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https://github.com/wilberquito/johntheartist

Template John the artist

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https://github.com/nesalia-inc/core

Zero-dependency monads for bulletproof TypeScript applications

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💾 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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Stuff I've worked through while learning Haskell

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

General tests with prime numbers

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https://github.com/taimoorzaeem/functional-stuff

Some functional programs.

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My individual coursework of the module ECS713P Functional Programming, QMUL.

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https://github.com/kaseken/fpinswift

Swift solutions to the exercises in "Functional Programming in Scala, 2nd Edition" (WIP).

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Ergonomic Promise.all

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https://github.com/sefatanam/tstricks

Exploring unpopular staffs of TS & JS things.

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

A persistent single-linked list for Rust

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