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: 2026-06-28 00:11:59 UTC
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https://github.com/nkcoder/byronbay

Playground for functional programming with Scala

functional-programming scala

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https://github.com/vevdokimovm/polymorphic-vector-cpp

C lab: runtime-polymorphic vector with generic Map and Filter higher-order functions

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https://github.com/faylina/spellbound-treasures

First project utilizing JavaScript to create a shopping cart

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https://github.com/mdw-go/funcy

Functional programming toolkit for Go

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https://github.com/alinpahontu2912/racket-supermarket

first homework for programming paradigms

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https://github.com/yisus82/fic-pf

Programación Funcional - Facultad de Informática de A Coruña

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https://github.com/it1shka/moonshine

Library providing common functional utilities for the Lua programming language. Development of the library is currently frozen

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https://github.com/paulpdaniels/streamish

A simple Functional Reactive Streaming library

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Turin Machine simulation to add one bit to a binary number

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https://github.com/faylina/witching_hour_chronicles

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https://github.com/GrahamStrickland/functional_lean

Examples and exercises from "Functional Programming in Lean" - David Thrane Christiansen

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

Homework repo for functional programming

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A very basic melody generation tool written in Lisp. There is also Postgres interactivity.

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Simplify Even and Odd HTML DOM Element Stuff , Save Time and Make Coding Easier and Fun. Just for fun

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https://github.com/justdvnsh/func.py

A practical functional library for Python Lovers.

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Restaurant API using DRF, with Authentication, Menu, Cart and Order management systems and etc.

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Repository containing solutions for problems in "Joy of Kotlin" book

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https://github.com/jack994/lambdacalculus_in_sml

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https://github.com/rcardin/doobie-playground

Examples of some use cases of the doobie library

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Github default profile image generator written in elixir

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https://github.com/marcin-chwedczuk/fpinscala

My solutions to the exercises from "Functional Programming in Scala" book.

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

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The design of the classic arcade game space invaders

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https://github.com/blutorange/js-elbe

Utility for working with streams (iterables).

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https://github.com/rcardin/raise4s

Porting of the Raise DSL from the Arrow Kt Kotlin library

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A blog about programming.

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Some of the school assignments from my master's degree study.

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Reactive programming for UI (ReactJS mostly)

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OTP stack server that pushes and pops

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Functional programming course on Haskell.

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💵 The system allows users to quickly withdraw predefined or custom amounts, deposit funds, check their balance, and securely log out.

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Slides for 2nd half of the talk "The world won't let you RAP and what to do about it" held at DataConnect2022

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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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Developping some common patterns in VimL, Test Driven.

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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/brunomontezano/r-workshop-intermediario

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A TypeScript/Bun/React frontend application for the Actix Web REST API backend with JWT authentication, multi-tenant support, and comprehensive functional programming patterns.

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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/leonardonicola/fp

Utility library for functional programming in Typescript

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https://github.com/teixdavide/FEUP_PFL_Parser

λ | Low-level machine interpreter and compiler project, including stack management, parsing, and compiling imperative programs

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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.

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

Implementations of the 99 problems in Erlang.

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https://github.com/fantiga/hackernews-list-nextjs-react-ts

This is an infinite loading demo generated from the HackerNews API using NextJS, React and styled-components.

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https://github.com/primeeagle/concerto

A modern programming language with an advanced type system, supporting both object-oriented and functional programming paradigms.

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https://github.com/sigurd4/fn_zip

Provides a zip trait for functions, allowing two functions to be combined at compile-time before being called.

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https://github.com/forketyfork/learn-you-a-haskell

Code examples and exercises from the "Learn You a Haskell for Great Good!" book

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https://github.com/icepanorama/learning-sml

A collection of small programs written as I'm refamiliarizing myself with Standard ML.

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https://github.com/p-obrthr/functional-csharp

functional experimentation with C#

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

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https://github.com/matheusfdosan/programacao-funcional

Uma explicação sobre Programação Funcional

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🎯 A reactive browser game built with RxJS Observables. Practice event streams, state management, and DOM updates in real time.

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https://github.com/genropy/smartswitch

Intelligent rule-based function dispatch for Python

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List Processor

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A functional library for TypeScript/JavaScript.

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