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: 2026-06-30 00:12:00 UTC
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https://github.com/64j0/poc-cpp-functional

A POC showing how one can leverage C++ functional features to: partial application, higher order functions.

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https://github.com/takayuki-y5991/pipeline-ts

A minimal library that provides a functional pipeline mechanism in typescript

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https://github.com/jcoreio/map-shape

apply mapping functions to specific properties of an object

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https://github.com/frouioui/debruijn

DeBruijn in Haskell

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https://github.com/moonfloof/cmp6090

Functional Programming - University Coursework/Homework

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https://github.com/amaziahub/tunic

A minimal setup for a Kotlin application using Gradle

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https://github.com/palutz/introtofunctional

Introduction to functional programming slides

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https://github.com/aryan02420/finite-state-machine

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https://github.com/papilo-cloud/pony-express

A simple mail server that stores emails and users. This behaves more like a conventional JSON backend API

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https://github.com/asllop/calf

Programming language for parallel maths and vector processing in Rust.

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https://github.com/vasilvelikov00/effective-ui

Composable, effect-based UI framework built on Effect.ts

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https://github.com/hoetty/marble

A simple and compact functional programming language

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https://github.com/jwalsh/simulacra-scheme

Implementation of Jean Baudrillard's simulacra concepts in Guile Scheme, with social media simulation example and visual representations

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https://github.com/faylina/witching_hour_chronicles

A witchy blog that utilizes PHP

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https://github.com/andrewbrennanfr/andrewbrennanfr

🪐 A personal bio for GitHub

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https://github.com/mhbxyz/fptk

Pragmatic functional programming helpers for Python.

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https://github.com/mizcausevic-dev/haskell-policy-engine

Type-safe policy DSL in Haskell. Algebraic data type Policy = Allow | Deny | When; predicates compose via And/Or/Not; pure total evaluator; Aeson JSON codec; Hspec + QuickCheck tests. Functional purity flex for the agent-governance theme.

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https://github.com/gregros/naff

Client-side DOM swiss army knife and switchblade.

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https://github.com/benoid/rejoice-in-the-lambda

A repository of useful Scheme procedures.

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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/attack-monkey/react-fn

A simple, functional approach to React

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

Limit the chaos while doing FP in JS

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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/dboyliao/learnhaskell

Notes and codes for learning Haskell.

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https://github.com/thautwarm/xylearn

the way to fewer tasks and more convincing products.

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https://github.com/davidboers/elmeither

Implements the Either declaration in Elm.

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https://github.com/sash-ua/gen_drift_monad-ts_a4

The simple web application Modeling Genetic drift. Used: Angular4 + Angust+ TypeScript, Angular material, Rollup, D3, HammerJS, SCSS, Gulp, HTML5, CSS3.

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https://github.com/rtorr/ts-fp

Typescript, eslint-plugin-fp, and vscode example

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https://github.com/marinaa13/sat-solver-haskell

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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https://github.com/mrgravity817/ruckpal

Mini Paypal clone, written in Rust for practicing domain modeling with clean architecture

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https://github.com/chocolacula/donotcopyanalyser

Roslyn analyzer for prevention of copying certain data

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https://github.com/leovido/fp-casestudy-swift

Swift version of the original 13 ways of looking at a turtle in F# by Scott Wlaschin

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https://github.com/agapas/images-switcher

React app to switch images on toggle, on mouse hover or touch and by scrolling the page, made to practice React Hooks.

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自用的js库

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https://github.com/JunggiKim/java-refined

Refinement and functional value types for Java 8+

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

Vector and complex math for graphics. Unfinished.

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https://github.com/sorja/haskell-2018-ifp

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https://github.com/nshkrdotcom/elixir_dashboard

A Phoenix LiveView performance monitoring dashboard for tracking slow endpoints and database queries

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https://github.com/azuobs/naive-workflow-manager

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https://github.com/aayushyadavz/todo-app-react

Built a ToDo App using React JS.

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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/carlosvinimsouza/projeto-livro-python

Primeiro trabalho de extensão com Python

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https://github.com/bilal-fazlani/gossip-glomers-scala-template

Solutions for Gossip Glomers Challenges in Scala using ZIO-Maelstrom

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https://github.com/sblack4/functional-programming-in-scala

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List Processor

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Hello, C.H.a.Z. (Cyborgs, Humans, ampersand Zombies): A simple strategy game demonstrating how enemies can become potential allies, where the balance between forces can shift in/out of your favor. Enemy of my enemy is my friend!

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https://github.com/skykanin/effects

An effects system based on freer monads in Idris

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https://github.com/julgitt/logic-circuit-simulator

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https://github.com/twilkinson3421/flec-pipe

Brings support for piping to JavaScript, with full TypeScript integration

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https://github.com/ItsOnkar-dev/SCALER-JAVASCRIPT-CERTIFICATION

Unlock the Power of JavaScript: A Comprehensive Collection of Detailed Modules from Scalar Topics'. This repository serves as a centralized hub for all the notes and concepts I've compiled throughout my journey in mastering JavaScript, ensuring a seamless learning experience.

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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/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/nesalia-inc/core

Zero-dependency monads for bulletproof TypeScript applications

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https://github.com/rakibhhridoy/predictingsequence-timeseriesanalysis

Time series data easy handling purposes in TensorFlow and python functional programming. Time Series data is handled and pre-processed by different steps,like making window of the data,splitting data for model purpose is also different than other processing methods. All has combined for easy access.

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https://github.com/blackwakhu/introduction-to-functional-programming

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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/SanTiepi/benoit

Benoît — A programming language where functions are algebra and modules are messages between machines.. Built for human-AI collaboration.

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

🦥GitHub meets SwiftUI

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https://github.com/mf42-dzh/transduction

Clojure's transducers in Scala.

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https://github.com/developeromarfaruk/react-authentication

Simple React Authentication Project with Firebase.

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The F language can be considered as a reduced version of the Lisp language with some simplifications and modifications. It takes the basic syntax and semantics from Lisp.

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