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: 2026-04-02 00:07:52 UTC
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https://github.com/nidal-bakir/fp

Functional Programming using Dart language

dartlang declarative-programming functional-programming

Last synced: 02 Apr 2025

https://github.com/deepcloudlabs/dcl165-2020-jan-02

Lab Projects studied in the training: DCL-165: Fundamentals of Scala Programming

functional-programming just-enough-scala scala

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https://github.com/guibrandt/higher-kt

Some experiments with annotation processors, code generation, higher kinded types (sort of) and typeclasses (sort of) in Kotlin

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https://github.com/guibrandt/persistentarray

Persistent array data structure in JS

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https://github.com/santymendez/tp-tadp-hibrido-objetos-funcional

Desarrollo de un Parser para interpretar imágenes realizado en la materia Técnicas Avanzadas de Programación en UTN FRBA

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

Functional Design and Architecture in Scala

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https://github.com/jonaskromer/blackjack

Blackjack implemented using scala providing a tui and gui

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https://github.com/v-spassky/drainage

🚿 Implementation of pipe expressions for Python.

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https://github.com/mrcfps/functional-programming-in-scala

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/redradix/kata-fp

Kata to practice functional programming with Ramda

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https://github.com/palutz/littletyperstudygroup

The Little Typer study group London

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https://github.com/qrailibs/functir

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

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https://github.com/dawidkopicki/reactive-shop

ReactJS + Functional programming

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

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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/pratik-123/generics

Use of Generics in Swift language

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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/mathemage/fup-programming-exam

Programming exams for B4B36FUP Functional Programming

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Gympass alike API

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

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https://github.com/stephenombuya/spreadsheetapplication

A simple, interactive spreadsheet web application built using HTML, CSS, and JavaScript. This app allows users to create, modify, and organize data in a grid-like format, mimicking a basic spreadsheet interface.

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https://github.com/woutervanbakel/try

Try class for C++

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OOP, Arrays and Objects and more

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https://github.com/ethern-myth/spring-postgres

Java SpringBoot PostgreSQL RestAPI

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https://github.com/kikytokamuro/futils

Functional utils

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https://github.com/mdjnewman/have-you-heard

Short talk (pecha kucha style) on functional programming

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https://github.com/profjordanov/scheme-prolog

'Logical and Functional Programming' & 'Intelligent Systems' practices of courses in University of economics - Varna

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https://github.com/p7g/some-functional-functions

some haskell-wannabe functions in JS (typescript)

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https://github.com/cianidos/simple_search_engine

HyperSkill/JetBrains Academy project

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https://github.com/pbaille/parsing-combinators

exploring parsing combinators in scheme

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https://github.com/daggerok/functional-and-reactive-principles-in-scala

Never too late! My learning process for 'Functional Programming Principles in Scala' and 'Principles of Reactive Programming in Scala' courses!

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https://github.com/antoniomdk/99-scala-problems

My own solutions to 99 Scala Problems.

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Code from the Programming Reactive System in Scala course from Edx (EPFL)

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https://github.com/palutz/calculateseries

A simple F# solution, with tests and console app to calculate a series of numbers

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https://github.com/danyst/iosfunctionaltable

Keepcoding Master Mobile Engineering Bootcamp - iOS Advanced - Functional programming exercise

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https://github.com/antwankakki/fct

functional cpp at compile time, the compiler turns to the perfectly slow interpreter XD

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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/jwalsh/lambda-calculus-polyglot

Lambda Calculus implementations in 20+ programming languages: functional, imperative, and logic paradigms

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Advanced Languages and Programming Techniques

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https://github.com/tymorrow/elm-dist-demo

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https://github.com/eckelon/sanctuarycustomtypesexample

Easy example of how to define custom types with Sanctuary and using them in safe functions

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

Funkcionální a logické programování - Cvičení

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https://github.com/wafer-li/scala-coursera

The projects of Functional Programming in Scala

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https://github.com/niuiic/fx-flow

A functional library for TypeScript/JavaScript.

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https://github.com/fblupi/grado_informatica-ntp

Prácticas de la asignatura Nuevas Tecnologías de la Programación de la UGR

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https://github.com/unosd/unofs

UnoFS is a purely functional semantic file system implemented in F#

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https://github.com/timeless-residents/handson-elm

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https://github.com/arufonsekun/nukes

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https://github.com/neelsomani/smart-cache

A Python library that analyzes your module and automatically caches purely functional sections

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https://github.com/foxfriends/svelte-io

IO monad for Svelte

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

Haskell Functional Programming Course

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https://github.com/theosorus/syntacticanalyzer

Build a simple Syntactic Analyzer in Haskell to discover Functional programming

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https://github.com/nthportal/euler-n-scala

Project Euler Solutions (in Scala)

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https://github.com/xodio/eslint-plugin-xod-fp

Limit the chaos while doing FP in JS

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https://github.com/rolangom/rolads

Monads implementation by @rolangom

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https://github.com/sftsrv/parz

A simple parser combinator library

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

This is a repository with an implementation of Conway's Game of Life. The game itself is implemented using several stacks in C#, F# and TypeScript. The purpose behind it is to have a small real-world example to show functional principles and features. Moreover, the repository is organized as 3 different projects an a small book/course in markdown to describe functional programming and reactive programming.

asp-net-core aspnetcore csharp fsharp functional-programming functional-reactive-programming immutability net-core-3 pure-function reactive-extensions reactive-programming reactjs referentially-transparent rx signalr-core typescript unidirectional-dataflow

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https://github.com/lpld/real-world-haskell

Assignments from the book "Real World Haskell" (http://book.realworldhaskell.org/)

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Javascript applications with FP

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Проект для тестового задания

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https://github.com/vtramo/java-problems

Solutions for various types of medium-to-challenging level problems.

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https://github.com/v-spassky/no-exceptions

🚨 Errors as values for Python.

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https://github.com/pfpack/pfpack-core-func

PrimeFuncPack Core.Func is a core library set for .NET consisting of functional interfaces (SAM interfaces) and the extensions targeted for use in functional programming. There are both asynchronous (Task and ValueTask based) and synchronous interfaces and the extensions in the set - IAsyncFunc/IAsyncValueFunc and IFunc.

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https://github.com/stackbuilders/refactoring-legacy-code

Refactoring Legacy Code using FP

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https://github.com/stackbuilders/functional-programming-patterns

Code snippets used during the presentation

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https://github.com/filiprd/monet

Online paintings retailer platform implemented in functional Scala 3

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Advent of Code solutions in Elixir.

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

Inspired from official Tour of Scala (https://docs.scala-lang.org/tour/tour-of-scala.html)

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https://github.com/roshan-khandagale/marksheet-generator---django

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https://github.com/m1sk9/introduction-arrowkt

Introduction at Functional Programing Library "Arrow-kt"

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https://github.com/amdjadouxx/pushswap-checker

A project to check your best pushswap instructions

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Elm rebuild of my mondrian idea

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https://github.com/aditya-k93/fpinscala

Functional programming in Scala

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https://github.com/edwyng/ldp-haskell-draft-beers

Programa diseñado con programación funcional que permita determinar cuántos litros de cerveza deben agregarse entre los barriles para servir exactamente n vasos de cerveza desde cualquiera de las salidas.

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https://github.com/corporatepiyush/clj

Clojure examples and tutorial

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Exercises for Functional Programming in Scala

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Reactive programming for UI (ReactJS mostly)

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