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: 2026-06-26 00:08:19 UTC
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https://github.com/quacksouls/jaf

Adventures in functional JavaScript

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https://github.com/lechindianer/fp-talk

Intro talk on functional programming

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https://github.com/zhongzc/gparser

A naive parser combinator library

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https://github.com/barcek/aqfr

run deeper | multipath piping | command-line tool | Elixir + Mix, w/ POSIX shell

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https://github.com/gregros/dropin-geometry

Vector and complex math for graphics. Unfinished.

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https://github.com/arodriguezfontana/functional-programming-unq

Prácticas realizadas para Programación Funcional de la UNQ.

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https://github.com/will-1-am/stanford

Stanford cs193p Spring 2020 course led by Paul Hegarty illustrating MVVM architecture, generics, functional programming using SwiftUI and Xcode. Homework assignments are included as separate git branches.

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Java SpringBoot PostgreSQL RestAPI

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https://github.com/deepcloudlabs/dcl113-2023-aug-14

DCL-113: Functional Programming in C++20

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a lightweight framework which helps building modular and configurable Node.js applications

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Проект для тестового задания

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Built a ToDo App using React JS.

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My own solutions to 99 Scala Problems.

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https://github.com/mateogiuffra/estrd2024s1

trabajos prácticos realizados en la materia Estructura de Datos de la Universidad Nacional de Quilmes (UNQ)

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https://github.com/brunomontezano/r-workshop-intermediario

📚 Course material for the R Intermediate workshop. The website and all presentations are in Brazilian Portuguese.

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https://github.com/milaziabchenko/custom-music-player-with-dropdown-select

Custom music player coupled with custom-made dropdown select, built with HTML, CSS, and JavaScript, combining FP and OOP approaches, and using the Web Audio API functionality

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https://github.com/dboyliao/learnhaskell

Notes and codes for learning Haskell.

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A web server based on F# and .NET Core

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工作中总结的公共类库、小工具，用来提高工作效率以及代码整洁度

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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/sorja/haskell-2018-ifp

Introduction to Functional Programming (Haskell). Repository for University of Helsinki course TKT21014.

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https://github.com/saber2pr/fp

:heavy_minus_sign: A library for Javascript in functional programing in async | sync | lazy.

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Some functional programming (main Java interfaces for such)

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Wang Tiles generator in Ocaml

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Functional SAT solver in Haskell implementing DPLL and CDCL strategies, with applications to the 3-coloring problem. Features lazy evaluation, clause learning, and non-chronological backtracking

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Programación funcional en Java con Lambdas y Streams

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A chill, 8-week Haskell learning journey designed for busy people who want to explore functional programming without the pressure.

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https://github.com/rsrini7/myelmresume

My Short Resume using ELM Language 0.18

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https://github.com/bertrand31/data-structures-javascript

Collection of data structures implemented in a functional fashion in JavaScript

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

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

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An example of using telemetry in a system built on microservices-based architecture.

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A repository with details of the different Javascript concepts learnt in Meta's Javascript course on Coursera

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Simple object to object dot notation converter in Node.js.

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A simple tic-tac-toe chore concept developed using test-driven-development and fonctional programming

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Lessons from Meta certification

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Scala simple validation library

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Exercise solutions for "Functional Programming in Scala"

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Trabajo practico para el curso K2004 de Paradigmas de Programación

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A repository with practice code about programming paradigms: Object Oriented - Functional - Logical

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https://github.com/turbaszek/ct4cs

Challenges from Category Theory for Programmers

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https://github.com/mhashim6/kotlin-sorting-algorithms

kotlin implementation for various sorting algorithms [school project]

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Functional Programming code challenges on HackerRank

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https://github.com/civilizeddev/functional-design-and-architecture-in-scala

Functional Design and Architecture in Scala

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Scala course programming exercises from Coursera.

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https://github.com/lordgoatius/comonad_rust

Attempt at encoding comonadic effects in Rust (inspired by @SheafificationOfG )

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

Repository to get started with Elixir

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https://github.com/qrailibs/functir

✨ Functional programming library for JavaScript. Fully type-safe.

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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/birdmod/acreader

A tool to browse anime by season and year based on Anilist API.

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My solutions in F#

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https://github.com/sandwwraith/fp-homework

Homework for FP ITMO course

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https://github.com/ayrtonbsouza/elixir-fundamentals-list-filter-challenge

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

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https://github.com/didier/frontend-data

Functional Programming subject of @CMDA-TT

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https://github.com/mdb/funcy

A minimal Go package providing a few functional utilities.

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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/sekky61/rust-iterator-aoc

Advent of Code challanges solved using Rust's iterators and functional programming

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

Testing with Mockito

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https://github.com/lukemorales/ignite.gympass-api

Gympass alike API

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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/p2m2/p2m2tools

Development of bioinformatics tools/software related to P2M2 metabolomics platform activities

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https://github.com/tanbirhossain/fsharp-learn

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https://github.com/sumanjitsg/redistil

A minimalist Redis re-implementation in Elm, bringing the power of functional programming to Redis interactions.

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

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LINQ/monadic extensions for async operations in .net

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https://github.com/theosorus/syntacticanalyzer

Build a simple Syntactic Analyzer in Haskell to discover Functional programming

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Emacs mode for editing https://github.com/Aearnus/charm files.

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Coding exercises in JavaScript.

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Examples of some use cases of the doobie library

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