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/mtumilowicz/scala-zio2-test-aspects-property-based-testing-workshop

Introduction to test aspects and property based testing.

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https://github.com/mhbxyz/fptk

Pragmatic functional programming helpers for Python.

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https://github.com/andrewbrennanfr/andrewbrennanfr

🪐 A personal bio for GitHub

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https://github.com/gabrielgiussi/scala-cats

Exercises from Scala with Cats

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https://github.com/fathisiddiqi/objek

Manipulate your object with simple functions

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https://github.com/bertrand31/exercicesalgo

💡 Collection of algorithmic exercises taken for fun from various sources

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Presentations throughout all these years

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Sharable ESLint configurations for the coding standards and rules at Mansa.

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Utility library for functional programming in Typescript

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Playing with Elm

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An introduction to Haskell

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Implementations of the 99 problems in Erlang.

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Notes I take while I study FP, and related subjects

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Thread-safe immutable objects that provide delegation and basic validation to hashes.

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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/th3n0m4d/functional-programming-meetup

Basic functional programming ideas illustrated with (the awesome) Ramda library.

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https://github.com/surjoyday/functional-procedural-objectoriented-programming

Code examples illustrating different programming paradigms: Object-Oriented Programming (OOP), Procedural Programming (PP), and Functional Programming (FP).

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

functional experimentation with C#

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🚀 Explore programming with this guide for kids. Discover languages like Python and JavaScript, and start your journey in IT careers today.

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Scala-based Haskell monoid implementation

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Haskell 99 to help me learn functional promgramming

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Make your data.task monads yieldable in redux sagas

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

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Solutions to the book: Programming Language Foundations in Agda, from Wadler, Philip, Wen Kokke, and Jeremy G. Siek

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https://github.com/thealexlichter/fp-in-php

A talk about functional programming in PHP

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https://github.com/dragos-tudor/frontend-states

Rewritten React redux library [functional principles].

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Board game where the goal is to flip all black pegs on board to white, with pegs flipping only if adjacent to a white peg.

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My implementation of the Peg Thing game in Clojure for the Brave and True

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https://github.com/articulate/progress

Cheap, functional, terminal progress bar

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https://github.com/yeison0416/observable-catch-the-dot

🎯 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/htet-ahkar/functional-programming-web-village-voyage-

Tutorial Series From (https://www.youtube.com/@webvv)

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https://github.com/kimpro82/myfunctionalprogrammingpractice

Functional programming is definitely a devil's plot!

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An effects system based on freer monads in Idris

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Mädūl is the fun way to write functional code in TypeScript!

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🎁 A full-stack, tested & responsive e-commerce site to browse and buy gifts for any occasion

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https://github.com/sinkaszab/limbda

Functional programming helper library.

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https://github.com/pavelannin/monadic-kotlin

Monadic is a distributed multiplatform Kotlin framework that provides a way to write code from functional programming

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https://github.com/unisay/freer

Reading "Freer Monads, More Extensible Effects" paper by Oleg Kiselev and translating it to Scala

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https://github.com/vit0rr/lexical_analysis

Lexical analysis interpreter step in OCaml

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https://github.com/vijayksingh/functional-programming-1

Functional Programming Lesson 1

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https://github.com/lmarzocchetti/advent-of-code-2023-haskell

Advent of Code 2023

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https://github.com/dotoscat/pyfunstream

Allow to chain functions with the | operator through streams

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https://github.com/iain-s/wizards-within

Working through SICP, one chapter at a time.

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https://github.com/exbotanical/turnstile

A sandboxed continuous integration server for minimal effort build tasks

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Implementations of RSA, Blum Blum Shub PRNG, affine and polyalphabetic ciphers, and supporting number theory in Haskell.

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https://github.com/scalateams/scalateams-claude-plugin

Specialist Claude Code agents for the Scala ecosystem — ZIO, Pekko, Cats Effect, build tools, codecs, HTTP, databases, and testing.

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https://github.com/ethern-myth/store-react

Shopping online store, react, .net core, postgresql

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https://github.com/marcelo-gomj/windows-10-calculator

It's the Windows calculator made with pure HTML, CSS and JavaScript. I tried to apply some functional programming concepts.

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https://github.com/minikin/github-swiftui

🦥GitHub meets SwiftUI

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Just some files while I am learning

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Clojure's transducers in Scala.

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A purely functional, dependency-free dependency injection library for TypeScript based on the Reader Monad.

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A simple, lightweight, Maybe implementation in JavaScript.

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