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: 2026-07-02 00:11:57 UTC
JSON Representation

https://github.com/bigtimetapin/somos-solana

Solana D'App for SOMOS* digital record store

blockchain elm-lang functional-programming solana-client solana-program

Last synced: 10 Jul 2025

https://github.com/catseye/pail

MIRROR of https://codeberg.org/catseye/Pail : An esolang based on pairs (if LISP is LISt Processing then this is PAIr Language)

esolang esoteric-language esoteric-programming-language functional-programming

Last synced: 21 Apr 2026

https://github.com/webcpu/haskellswift

A functional library for Swift programmers

functional-programming haskell swift

Last synced: 15 May 2026

https://github.com/hablapps/geofences

A proof-of-concept application to show the principles of purely functional programming

cats doobie functional-programming http4s scala scalaz typeclasses

Last synced: 30 Jun 2025

https://github.com/jajaperson/copb

A functional composition framework built for TypesScript that provides type safety without the need for the usual countless overloads, thanks to some functional type trickery.

composition currying functional-programming overloading pipes typescript

Last synced: 16 May 2026

https://github.com/numq/stash-desktop

Kotlin Jetpack Compose Desktop Clean Architecture file sharing application

clean-architecture coroutines coroutines-flow event-driven-architecture file-sharing functional-programming jetpack-compose-desktop koin-kotlin kotlin kotlin-desktop qrcode-generator websockets websockets-client websockets-server zxing-qrcode

Last synced: 23 May 2026

https://github.com/itwillwork/function-logger

Awesome tool for FP JS. Logging of the input and output arguments of the function on each call.

debugging-tool frontend functional-programming javascript

Last synced: 14 May 2025

https://github.com/santanusinha/hystrix-function-wrapper

A small lib to wrap any lambda with a hystrix command

functional functional-programming hystrix java-8

Last synced: 06 Mar 2026

https://github.com/elixircl/kombucha

🍹Kombucha: A Programming Language with Probiotics

elixir functional functional-programming kombucha language programming

Last synced: 26 Feb 2025

https://github.com/mmzk1526/doc-jan-haskell

Solutions to Imperial College Department of Computing Haskell January Tests

functional-programming haskell ic

Last synced: 21 Feb 2026

https://github.com/articulate/squiss-jobs

SQS-backed job queue

aws-sqs functional-programming job-queue nodejs

Last synced: 13 Apr 2025

https://github.com/milmazz/func_geo_slides

Functional Geometry Description of Escher’s Fish (slides)

escher functional-programming geometry

Last synced: 03 Jan 2026

https://github.com/br1ght0ne/functional-programming-jargon.ex

Jargon from the functional programming world in simple terms! Now in Elixir!

elixir functional-programming glossary

Last synced: 08 Aug 2025

https://github.com/nextbreakpoint/common

Common is a library which implements useful types for writing code in an elegant and concise style

fluent-api functional-programming java java-library

Last synced: 26 May 2026

https://github.com/thesephist/ittr

Small library of iterator-related utility functions for JavaScript

functional-programming iterator nodejs

Last synced: 26 Dec 2025

https://github.com/tonivade/purecheck

Property based testing in Java

experimental functional-programming java property-based-testing unit-testing

Last synced: 23 Jun 2025

https://github.com/ibnaleem/haskell-simplified

The open curriculum for learning functional programming in Haskell

functional-programming haskell haskell-book haskell-exercises haskell-language haskell-learning haskell-tutorial learnyouahaskell theodinproject

Last synced: 02 Apr 2025

https://github.com/bryanesmith/fp-in-scala-v2

Answers to exercises in Functional Programming in Scala.

functional-programming scala

Last synced: 16 Jun 2025

https://github.com/fabiannorbertoescobar/prolog-haskell-ejercicios

Ejercicios sencillos de Programacion Lógica y Programación Funcional en los lenguajes Prolog y Haskell, realizados en Programación Avanzada para conocer otros paradigmas

functional-programming ghci haskell logic-programming prolog swi-prolog

Last synced: 11 Apr 2025

https://github.com/noyzys/bukkit-vavr-in-action

⚡ vʌvr in action playground

bukkit fp functional-components functional-programming functional-reactive-programming jvm playground spigot vavr

Last synced: 09 Apr 2025

https://github.com/szymon-budziak/functional_programming_course_agh

Solutions from Functional programming course at AGH UST. If you use it and it helped you please leave a star ⭐

functional-programming haskell

Last synced: 16 May 2026

https://github.com/goblinfactory/appendonly

High speed C# immutable append only list.

csharp dotnet functional functional-programming goblinfactory-opensource high-performance immutable nuget-package

Last synced: 16 Jun 2025

https://github.com/johndavedecano/kwerk

A co-working directory built with elixir language and phoenix framework

elixir elixir-phoenix elixir-programming-language functional-programming phoenix-framework test-driven-development

Last synced: 23 Jun 2025

https://github.com/mrft/itr8

A library for transIterators: unified 'operators' for javascript iterators (synchronous AND asynchronous iterators) - https://mrft.github.io/itr8/

asynciterator communicating-sequential-processes csp functional-programming iterator javascript javascript-library transducers transiterator typescript typescript-library

Last synced: 02 Feb 2026

https://github.com/kschuetz/enhanced-iterables

Iterables with additional methods

functional-programming immutable iterables java lambda non-empty

Last synced: 16 Jan 2026

https://github.com/vishwajeet-29-pro/javadsa

Daily Practice on Java and Test Driven Development

cucumber design-principles documentation dsa-algorithm functional-programming java java-8 junit5 oops-in-java

Last synced: 27 Feb 2026

https://github.com/sandromaglione/sandromaglione

Coding since I was 12. Master in Computer Science and Engineering. Open-Source contributor and maintainer. Writing technical guides and tutorial articles.

dart engineering flutter functional-programming javascript mobile-development open-source react typescript web-development writer

Last synced: 12 Apr 2025

https://github.com/mrdimosthenis/gleam_zlists

A library for working with lazy lists in Gleam

beam erlang functional-programming gleam gleam-lang

Last synced: 14 Mar 2025

https://github.com/ajitjha393/js-transducers

The Functional transducers that allow transformations with improved performance

compose functional-programming transducers

Last synced: 01 Sep 2025

https://github.com/saityi/felis

(⚠️ Work in Progress ⚠️) Category theoretic abstractions and implementations

category-theory functional-programming standard-ml

Last synced: 06 Feb 2026

https://github.com/peekandpoke/psi

Php Simple Iterations. Map, filter, aggregate, reduce with ease. Produce readable and reliable code without hand-written loops.

functional-programming immutability php

Last synced: 22 Jun 2025

https://github.com/amrdeveloper/bee-lang

Bee is interpreted programming language for LangJam 2021 Created in less than 48h based on first-class comments theme

functional-programming interpreter java langjam langjam-0001 language multithreading object-oriented-programming

Last synced: 24 Jul 2025

https://github.com/deviltea/tiny-pipe

A pipe function builder with tiny size and type-safe.

functional-programming pipe type-safe typescript

Last synced: 06 Apr 2025

https://github.com/yalishanda42/scala-recsys

Scala(-ble) recommender system architecture using functional programming (PoC)

cats cats-effect functional-programming movielens recommender-system recsys scala spark

Last synced: 08 Nov 2025

https://github.com/diekmann/isabelle-hello-world

Hello World in Isabelle, compiled to Haskell

functional-programming haskell isabelle-hol

Last synced: 04 Apr 2025

https://github.com/syzer/function-tools

Small (hopefully) lib for operating with files in functional programming style

functional-programming library stream

Last synced: 24 Jun 2026

https://github.com/pujitm/fun-ov

Flexible functional object validation for API's & highly customized software

functional-programming javascript typescript validation

Last synced: 21 May 2026

https://github.com/sauravbhattacharya001/ocaml-sample-code

150+ OCaml implementations: data structures, algorithms, interpreters, theorem provers, neural networks, distributed systems, and more

algorithms compiler computer-science concurrent-programming data-structures distributed-systems functional-programming graph-algorithms interpreters learning machine-learning neural-network ocaml parser-combinators red-black-tree regex-engine sat-solver theorem-prover trie type-inference

Last synced: 28 Apr 2026

https://github.com/angarsk8/es6-simple-curry

simple curry javascript function

currying es2015 functional-programming javascript

Last synced: 01 Jul 2026

https://github.com/shal/odd-even-mergesort

:balance_scale: Blazing fast Batcher's sort algorithm

functional-programming haskell parallelism sorting

Last synced: 03 Feb 2026

https://github.com/guillaumearm/redux-fun

:wrench: - Redux functional programming utilities

fp functional-programming handler middleware reducer redux selector updater

Last synced: 02 May 2026

https://github.com/emirhandogandemir/functionalprogramming

to Declarative Programming from Imperative Programming

consumer functional-programming javastreams predicate supplier

Last synced: 12 Jun 2026

https://github.com/bcherny/promise-seq

lazy-execute promises in sequence

async functional-programming typescript

Last synced: 28 Mar 2025

https://github.com/wagner-de-carvalho/mybank

Aplicação em Erlang

erlang functional-programming otp process supervisor

Last synced: 22 Mar 2025

https://github.com/hanzopgp/haskelltest

First time using functional programming language.

functional-programming haskell university

Last synced: 22 Jun 2025

https://github.com/jaalonso/exercitium2013

Ejercicios de programación funcional con Haskell (Curso 2013-14)

functional-programming haskell haskell-exercises

Last synced: 27 Mar 2025

https://github.com/bkosm/kpipe

A kotlin-native library introducing a functional-style pipe.

functional-programming kotlin pipe

Last synced: 30 Jun 2025

https://github.com/timdeputter/fitex

FitEx is a Macro-Module which provides a bit of sugar for function definitions.

elixir elixir-lang functional-programming macros

Last synced: 20 Mar 2025

https://github.com/manusant/katxupa

Delicious Dish for Typescript and JavaScript projects

cachupa functional functional-programming javascript katxupa typescript

Last synced: 14 Apr 2025

https://github.com/joordy/ringring

A dashboard tool on behalf of Ring-ring organization. A dashboard tool for policy makers, which can see how traffic conditions can be improved. The tool consists of several visualizations formed from the Ring-Ring bicycle dataset.

chartjs cycling data-visualization data-visualization-project functional-programming mapbox rollup sapper svelte svelte-js svelte3

Last synced: 14 Jul 2025

https://github.com/ljmf00-archive/aoc2020

Advent of Code 2020 in D Programming Language

advent-of-code advent-of-code-2020 aoc aoc2020 dlang dlang2 functional functional-programming

Last synced: 06 Mar 2026

https://github.com/ches/intro-to-learning-scala

Talk from May 2017 Bangkok Functional Programmers meetup – http://ches.github.io/intro-to-learning-scala/

functional-programming scala scalajs

Last synced: 11 Apr 2025

https://github.com/ayushmantripathy/pips

a functional, dynamically weakly typed, interpreted, indented programming language.

c functional-programming interpreter make piping programming-language

Last synced: 21 Mar 2025

https://github.com/mtyrolski/functional-images

cpp17 functional-programming metaprogramming

Last synced: 24 May 2026

https://github.com/askewcow/haskell-by-doing

A hands-on journey to learning Haskell by building projects, exercises, and notes. Perfect for people from all backgrounds!

best-way-to-learn-haskell coding-exercises fp functional-paradigm functional-programming functional-programming-exercises haskell haskell-beginner haskell-course haskell-course-github haskell-exercises haskell-fundamentals haskell-learning haskell-projects-github haskell-tutorial learn-functional-programming learn-haskell programming-exercises

Last synced: 07 Mar 2026

https://github.com/okmttdhr/beauty-of-haskell

Short code snippets for the beauty of Haskell.

algorithms functional-programming haskell snippets

Last synced: 28 Mar 2025

https://github.com/giu7d/doka-lang

DOKA Functional Programming Language

compiler functional-programming programming-language

Last synced: 22 Aug 2025

https://github.com/systemfsoftware/essentials

Essential TypeScript libraries and utilities for building production-ready AI SaaS applications

ai apify aws cloud-native developer-tools effect-ts functional-programming monorepo neon-database nodejs pnpm saas serverless typescript utilities

Last synced: 13 Apr 2025

https://github.com/sdaves/simplemonads

Easy to use monads (containers), with pattern matching, that improve the quality of your python code. Use Just to end checking for None, Success to end unhandled exceptions, Future for async, and Reader for dependencies.

dependency-injection fp functional-programming futures monads python reader unhandled-exceptions

Last synced: 22 Aug 2025

https://github.com/radiopotin/computorv1

2nd degree equation solver, first experience in functional programming. 42Paris course project

42paris 42school computorv1 functional-programming ocaml

Last synced: 27 Jun 2025

https://github.com/battermann/parser-combinators-scala-hands-on

A series of exercises on functional parsers

functional-programming hands-on parser-combinators property-based-testing scala tutorial

Last synced: 29 Mar 2025

https://github.com/sandeepkundalwal/scheme-interpreter

Scheme Programming Language's Interpreter using Java

functional-programming java scheme-interpreter scheme-programming-language

Last synced: 27 Mar 2025

https://github.com/kaliv0/pyrio

Functional-style Streams API

file-processing fluent-api functional-programming python-functional streams-api

Last synced: 10 Apr 2025

https://github.com/oliverjash/fun-task-fetch

fetch API implemented using the Task type, which allows cancellation amongst other things.

fetch fetch-api functional-programming task

Last synced: 20 Aug 2025

https://github.com/calvinlfer/etl-workflow

An opinionated way to structure ETL pipelines with a heavy focus on reusability and testing

cats etl functional-programming scala

Last synced: 06 Jul 2025

https://github.com/marcinzh/beam

Streams using Algebraic Effects and Handlers

algebraic-effects functional-programming scala stream

Last synced: 10 Mar 2026

https://github.com/stagfoo/joro

🕷️🕸️ Load dom nodes and strings like dependencies with no duplicates

css css-framework frontend functional-programming javascript jss template-literals

Last synced: 10 Apr 2026

https://github.com/theodesp/sicp-workbook

This is my workbook and exercise solutions for the legendary SICP Book

functional-programming lisp programming scheme sicp-book

Last synced: 20 Jan 2026

https://github.com/bkuhlmann/functionable

Enhances modules to be functional by default.

composition functional-programming functions

Last synced: 12 Dec 2025

https://github.com/saketkothari/freecodecamp-javascript-algorithms-and-data-structures

freeCodeCamp JavaScript Algorithms and Data Structures Solutions

algorithms basic-data-structures debugging es6 functional-programming javascript object-oriented-programming regular-expression

Last synced: 21 Mar 2025

https://github.com/backwards-limited/scala-backwards

Scala by Backwards

category-theory cats fs2 functional-programming scala

Last synced: 11 Jan 2026

https://github.com/jumpn/absinthe-phoenix-socket

Absinthe Phoenix Socket

absinthe absinthe-graphql elixir-phoenix functional-programming graphql immutable phoenix

Last synced: 18 May 2026

https://github.com/lyes-sefiane/java-programming-concepts

Java Programming Concepts

advanced-programming functional-programming java java-11 java-8 java-fundamentals object-oriented-programming software-development

Last synced: 07 Mar 2025

https://github.com/mtumilowicz/scala213-functional-programming-functor-monoid-monad-workshop

Functor, Monoid, Monads in practice.

applicative-functors functional-programming functors monad-laws monoids scala workshop workshop-materials

Last synced: 18 Feb 2026

https://github.com/bardoor/monaditto

A pragmatic monad library for Elixir, no PhD required

elixir functional-programming monad

Last synced: 08 Mar 2026

https://github.com/ucl-arc/functional-programming-for-rses

A functional programming course for research software engineers.

functional functional-programming research-software research-software-engineering teaching teaching-materials

Last synced: 18 Feb 2026

https://github.com/apexiq/python-simplified

Python 2025 Series to learn python

functional-programming jupyter jupyter-notebooks jypyternotebook numpy pandas python python-3 python-lambda python-library python3

Last synced: 14 Feb 2026

https://github.com/tebogoyungmercykay/programming-languages-coding-booth

Chris Hanson and the MIT Scheme Team. MIT/GNU Scheme reference manual. Technical report, Mas- sachusetts Institute of Technology, 2018.

cobol fortran functional-programming imperative-programming-language imperative-scripting-languages languages logic-programming object-oriented-programming programmin racket ruby scheme

Last synced: 14 Mar 2025

https://github.com/jabez007/functionalcsharp

A library of static classes, extension methods, and classes that apply functional techniques to C#.

c-sharp csharp functional-programming lambda-calculus lambda-expressions lambda-functions terraformed

Last synced: 13 Apr 2025

https://github.com/roppa/funcker

Functional programming learning exercise

curry functional-programming javascript library notation

Last synced: 08 Apr 2025

https://github.com/simonsejse/fastolangcompiler

FastoLangCompiler is a open-source compiler for the FASTO language written in F#, developed as part of the "Implementation of Programming Languages" course at DIKU, University of Copenhagen, in 2024.

compiler fasto fsharp functional-programming interpreter

Last synced: 28 Mar 2025

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

General purpose repository for learning purely-function languages.

functional functional-programming general-purpose haskell haskell-learning purely-functional purescript

Last synced: 18 Jun 2026

https://github.com/tonix-tuft/react-suspense-async-effect

A library to perform asynchronous effects in React following the Suspense API principles providing asynchronous curried functions with a synchronous feel.

algebraic-effects async asynchronous curry effect effects feels-synchronous functional-programming react suspense

Last synced: 03 Feb 2026

https://github.com/darky/context-fp

Microscopic functional programming context for TypeScript

context dependency di fp functional functional-programming injection javascript js programming ts typescript

Last synced: 01 May 2025

https://github.com/rzane/sensible-maybe

Maybe you should use a Maybe?

functional-programming javascript maybe typescript

Last synced: 08 May 2026

https://github.com/a1exwang/wtf-interp

An functional scripting language inspired by Ruby, Elixir, CoffeeScript, Python, etc

functional-programming interpreted-programming-language language ruby wtf

Last synced: 01 Aug 2025

https://github.com/davidgregory084/robots

A helper library for validating data with Cats

cats functional-programming scala validation

Last synced: 04 Apr 2025

https://github.com/safwa1/sharpresults

A lightweight, zero-dependency C# library that implements the Result and Option types for more explicit and type-safe error handling. SharpResults helps you avoid exceptions for control flow and makes success/failure and presence/absence states explicit in your code.

csharp dotnet error-handling extension-methods fluent-api functional-programming library monads nuget optianal result-type sharpresults

Last synced: 15 Jun 2025

https://github.com/mmzk1526/lambda_calculus

Dart package for Lambda Calculus

dart functional-programming lambda-calculus simulator type-system

Last synced: 15 May 2026

https://github.com/muhammadkashif20/calculator-project

I made This is Simple Calculator Project Using Languages Html , Css , JavaScript. With Fully Functionality With JavaScript & Using Eval Function.Styling For Css & Structure For Html. With Beautiful Ui

css functional-programming html javascript

Last synced: 11 Jan 2026

https://github.com/m-aqsam/flutter-functional-apps

Collection of Flutter Functional Apps

applications flutter flutter-apps flutterapplication functional functional-programming

Last synced: 31 Jul 2025

https://github.com/phreppo/parallellisp

Lisp, but functional and parallel

functional-programming lisp parallel

Last synced: 04 Oct 2025

https://github.com/astuanax/funmatrix

Matrix applicative

functional-programming javascript math matrix matrix-factorisation matrix-m monad

Last synced: 21 Feb 2026

https://github.com/ghurtchu/blabbermouth

live support chat server (currently in dev)

chat concurrency fs2 functional-programming http http4s play-json queue redis redis-pubsub scala streams websockets

Last synced: 16 May 2026

https://github.com/astuanax/fun

Functional javascript library

either-monad functional-programming javascript maybe-monad

Last synced: 21 Feb 2026

https://github.com/yosefbeder/qatam

Qatam (قتام) is an Arabic scripting language.

arabic compiler functional-programming scripting-language virtual-machine

Last synced: 10 Sep 2025

https://github.com/alvaro-cuesta/lambda-musika

A JavaScript DAW that emphasizes functions as its core building block. In practice, a realtime audio scripting language and batteries-included DSP library, running on the web.

audio daw functional-programming live-coding music

Last synced: 24 Jan 2026