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/rieselhilfe/sofunlang

An Interpreter for my language "Sofun" (Stack-Oriented FUNctional programming language) written in haskell. Now with a basic type system.

esoteric-language functional-programming haskell interpreter programming-language repl sofun stack-based

Last synced: 23 Mar 2026

https://github.com/lucasbotang/made_up_programming_language

MUPL language interpreter implemented by Racket

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https://github.com/memowe/aoc2023

My advent of code 2023 solutions

advent-of-code aoc2023 functional-programming haskell

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https://github.com/skulltech/programming-languages-assignments

Assignments and code written for course COL226 (Programming Languages) of IIT Delhi.

compiler-design functional-programming programming-languages

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https://github.com/monashcoding/intro-to-haskell

Introduction to Haskell Workshop

functional-programming haskell

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https://github.com/patrixr/capacitor.js

Functional utility method: a capacitor concept

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https://github.com/albertllousas/auctions-microservice

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https://github.com/apiad/purely

Lightweight functional primitives for cleaner Python

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https://github.com/abdulaziz-hassan/cpu-cache-system_haskell

A successful implementation of a simplified CPU cache system in Haskell and takes advantage of the Functional Programming Paradigm

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https://github.com/chicio/katas

💪🏋️‍♂️ A collection of katas I did to hone my programming skills. 🏋️‍♂️💪

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https://github.com/tomsquest/mediathequeroubaix.py

Python CLI for the library of Roubaix (Médiathèque Roubaix)

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https://github.com/alseinx/alsein.algorithms

Some algorithm features in addition to LINQ.

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https://github.com/davidgfolch/spring-mongo-reactive

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https://github.com/davidgfolch/shop

Customer & order management

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https://github.com/palutz/monads-gym

Stretching the muscles with monads...

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https://github.com/mollybeach/apetalie

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https://github.com/singuerinc/slot-machine

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https://github.com/zx80live/gofp

Go for Scala developers

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https://github.com/airsequel/airscript

[WIP] A scripting language for spreadsheet formulas, CLI tools, ETL pipelines

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https://github.com/olemb/livemidi

MIDI messages for Python

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https://github.com/vgalvoso/phunctional-php

A functional programming PHP framework.

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https://github.com/ladroid/mathelogos

The Mathelogos library is designed to introduce functional programming constructs to Rust.

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https://github.com/rxtoolkit/socketio

🚰 RxJS operators for working with Socket.io (v4 or lower) servers

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https://github.com/rcardin/reader-monad

A simple implementation of the Reader monad

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https://github.com/zhifengzhang-sz/qi-v2-qicore

QiCore v4.0 Foundation - Mathematical foundation types and core modules for modern applications

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https://github.com/doeixd/make-with

Functional utilities for elegant function composition and state management in TypeScript

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https://github.com/dhodgson615/lintomatic

A basic linter for Python projects written in Haskell

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https://github.com/jaalonso/examenes_de_pf_con_haskell_vol6

Exámenes de programación funcional con Haskell. Vol. 6 (Curso 2014-15)

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https://github.com/itemconsulting/enonic-wizardry

Functional utility library for Enonic XP

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https://github.com/kaliv0/fumus

Functional musings in Python

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https://github.com/bertrand31/pandore

📦 The functional files manipulation library Scala was missing

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https://github.com/neshkeev/avaj

Haskell influenced Category Theory patterns implemented in Java

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https://github.com/igreat/tiny-prover

A simple first order logic theorem prover using tableaux

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https://github.com/skykanin/coding-test

Online coding test

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https://github.com/edysegura/js-functional

Functional JavaScript programming examples

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

함수형 프로그래밍 연습

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https://github.com/davestewart/collection-fns

A set of flexible, type-safe functions to manipulate arrays of models

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https://github.com/xlisp/jim-emacs-fun-hylisp-keras

将哲学保存到每一个Lisp原子里面

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https://github.com/leejss/funtional-ts

It's a functional programming playground.

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https://github.com/alonsodomin/purerand

Pure functional random generator of data

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https://github.com/tripolskypetr/functools-kit

A library with helpers for react-declarative app backend development

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https://github.com/ist-dsi/scala-openstack-common-clients

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https://github.com/ist-dsi/scala-keystone-client

A pure functional Scala client for Openstack Keystone implemented using Http4s client.

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https://github.com/astrolabsoftware/astrolabsoftware.github.io

Website for AstroLab

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https://github.com/etacassiopeia/datachefanalytics

ZIO, One Monad to rule them all !!!

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https://github.com/enpassant/jadobec

JDBC wrapper for very simple database handling.

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https://github.com/markhaehnel/resolver-pipe

A functional pipe with validators for TypeScript

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https://github.com/gustavodiasag/simpler

Interpreter for a functional, expression-based programming language

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https://github.com/matbesancon/pagerank

A functional, parallel PageRank implementation in Scala

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https://github.com/dinaraparanid/crosswordgenerator

Crossword worksheet generation app

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https://github.com/zeknikz/basicfunctionlanguage

A basic functional programming language that focuses on basic mathematical functions.

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https://github.com/davidmarne/functional_flutter

Tools for composing flutter widget trees in a functional manner.

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https://github.com/arc-hugo/debt_calculator

Implementation project of an algorithm computing the max-flow of a flow graph and apply it in a debt calculator app.

flow ford-fulkerson-algorithm functional-programming graph ocaml

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https://github.com/dracotmolver/quartz-js

QuartzJS - A set of useful small functions

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https://github.com/perkss/perkss.github.io

My fun super interesting blog take a read

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https://github.com/atomicptr/php-functional

A set of tools to enable a more functional style of programming in PHP, inspired by OCaml

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https://github.com/slowli/curry-chain

Chainable function currying

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https://github.com/pyccel/lampy

Extension of Pyccel for functional programming

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https://github.com/filipbolt/hackerrank_functional

Haskell solutions hackerrank functional challenges

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Last synced: 28 Oct 2025

https://github.com/kdungs/go-result

Result types for Go; because (T, error) can be considered a ✨ monad ✨.

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https://github.com/raedaddala/advent-of-code

My solutions for Advent of Code starting from 2015

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https://github.com/xiel/outer-hooks

Powerful and composable hooks that work in Node & Browser.

functional-programming hook hooks node typescript

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https://github.com/itsdanieldk/fio-chat

💜 Scalable and feature-rich chat server and client built with FIO, designed for high-performance asynchronous communication

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https://github.com/unosd/resultmonad

C# implementation of the result and other monads with query syntax support and extensions for Tasks and IEnumerable

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Last synced: 09 Mar 2025

https://github.com/wurstbroteater/papso

Parallel Asynchronous Particle Swarm Optimization in Clojure

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https://github.com/gardncl/functional_programming_javascript

All the exercises from http://reactivex.io/learnrx/

brackets functional-programming javascript reactivex

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https://github.com/duruii/course-ucb-cs61a-spring2021

🪁Structure and Interpretation of Computer Programs, delivered by Paul N. Hilfinger & Pamela Fox

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https://github.com/steventimes/fpstreams

functional programming library for Python

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Last synced: 08 Feb 2026

https://github.com/mainro/cyclotron-std

Python standard library drivers and components for Cyclotron

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https://github.com/gavinhome/done-redux

A combined .Net7 state management framework.

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https://github.com/mrandl/satsolver

A toy functional and parallel SAT solver implementation in Scala

dotty functional-programming sat-solver scala

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https://github.com/yurkimus/types

JavaScript-oriented type utilities

deno functional-programming javascript node utilities

Last synced: 08 Feb 2026

https://github.com/beyondnetperu/net-functional-sample

A simple sample applying functional programming with dotnet

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https://github.com/slamko/deep-racket

Little Deep Learning framework in Racket

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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

audio-player customization events functional-programming html-css-javascript oop ui-design web-audio-api

Last synced: 26 Feb 2025

https://github.com/milaziabchenko/vanilla-javascript-playground

JavaScript theory and code snippets, using functional and OOP, prototypes, higher-order array methods, regular expressions, DOM, events, and asynchronous JS

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Last synced: 26 Feb 2025

https://github.com/0xdsqr/ts-match

Type-safe pattern matching for TypeScript with exhaustiveness checking and zero dependencies

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https://github.com/victorlga/functional-etl

A functional ETL pipeline in OCaml that processes order data from CSV files hosted online using map, reduce, and filter, producing aggregated results and storing into a database.

etl functional-programming ocaml pipeline

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https://github.com/peter-roh/ocaml

taking 'programming languages' course

functional-programming interpreter ocaml programming-languages

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https://github.com/artificial-sapience/clearflow

Correctness-first orchestration for emergent AI. Type-safe, deeply immutable, 100% code coverage.

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https://github.com/calvinlfer/zio-intro-game-solutions

My solutions to the ZIO game

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https://github.com/calvinlfer/dag-validator

A simple Directed Acyclic Graph validator that detects if cycles are present

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https://github.com/jaandrle/fpubsub

PubSub pattern library with types support

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https://github.com/oliver021/helppad-net

Versatile .NET Toolkit: A Comprehensive Set of Miscellaneous Helpers, Classes, and Utilities

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https://github.com/cuchi/turmite

Chaotic two-dimensional Turing machine

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https://github.com/thoughtfool/pocket-squatch

A simple game concept to practice design and logic principles within the 2D world. This was a project that was developed in close partnership with my school-age daughter. She is the inspirational project-manager and creative-director that helped guide the development process.

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https://github.com/offensiveedge/urls-le

Zero Hassle URL Extraction & Validation - Extract, validate, and analyze URLs from logs, configs, code, and documentation. Features accessibility checking, link validation, pattern analysis, and comprehensive reporting.

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