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: 2026-03-20 00:12:02 UTC
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https://github.com/damiancipolat/functional_programming_in_js

This repository is a group of material and study guide to learn the concept of functional programming using javascript, much of it was extracted from JSCONF.

functional functional-programming javascript study-project

Last synced: 01 Aug 2025

https://github.com/rvikmanis/redux-fp

Functional programming helpers for Redux.

functional-programming helpers point-free reducer redux utility-library

Last synced: 14 Apr 2025

https://github.com/brucou/cycle-state-machine-demo

Non-trivial, real use case demo of a hierarchical state machine library with cyclejs

automata cyclejs functional-programming functional-reactive-programming hierarchical-state-machine reactive-programming state-machine

Last synced: 10 Jul 2025

https://github.com/HowProgrammingWorks/Closure

Function closures and storing data in function scope

closure function function-closures functional-programming functor javascript js node nodejs programming

Last synced: 28 Mar 2025

https://github.com/keera-studios/magic-cookies

Remove all the cookies on the tray! - The Haskell iOS & Android board game

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Last synced: 30 Jul 2025

https://github.com/adityaathalye/usermanager-first-principles

A "from first principles" variant of "usermanager-example", the tutorial Clojure web application by Sean Corfield.

clojure clojure-development clojure-tutorial functional-programming jetty9 ring-clojure study-project teaching-materials tutorial-code tutorial-project web-application web-development webapp

Last synced: 17 Sep 2025

https://github.com/quadrupleslap/union-js

🏷️ Tagged unions for vanilla JavaScript!

discriminated-unions functional-programming javascript union vanilla-js

Last synced: 05 Mar 2026

https://github.com/akabe/docker-iocaml-datascience

Dockerfile of Jupyter (IPython notebook) and IOCaml (OCaml kernel) with libraries for data science and machine learning

data-science deep-learning docker functional-programming iocaml jupyter-notebook machine-learning ocaml

Last synced: 07 Oct 2025

https://github.com/howprogrammingworks/closure

Function closures and storing data in function scope

closure function function-closures functional-programming functor javascript js node nodejs programming

Last synced: 05 Apr 2025

https://github.com/flyfish30/zig-cats

A category and functional programing library for Zig language

category-theory functional-programming zig zig-package

Last synced: 12 Apr 2025

https://github.com/nikdon/telepooz

Functional Telegram Bot API wrapper for Scala on top of akka, circe, cats, and shapeless

akka akka-streams bot cats circe free-monad functional-programming scala telegram-api

Last synced: 12 Sep 2025

https://github.com/ken-okabe/functional-programming-from-scratch-ja

Functional Programming From Scratch 日本語版

fsharp functional-programming functional-reactive-programming haskell learn-to-code learning mathematical-programming mathematics solidjs typescript verse

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https://github.com/cfhammill/lenses

Elegant Data Manipulation with Lenses

functional-programming r

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https://github.com/albertllousas/team-management-microservice

Team management service is a production ready and fully tested service that can be used as a template for a microservices development.

domain-driven-design event-driven-architecture functional-programming hexagonal-architecture hexagonal-architectures kafka microservices spring-boot transactional-outbox-pattern

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https://github.com/loreanvictor/quel

Reactive Expressions for JavaScript

functional-programming javascript observable reactive-programming typescript

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https://github.com/geirolz/cats-xml

A functional library to work with XML in Scala using Cats.

cats decoding encoding fp functional-programming scala xml

Last synced: 14 Apr 2025

https://github.com/troyp/fn.el

Concise anonymous functions for Emacs Lisp

emacs emacs-lisp functional-programming lambda macros

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https://github.com/fwcd/curry-language-server

IDE support for the functional logic programming language Curry

curry functional-programming haskell language-server-protocol logic-programming

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https://github.com/mystpi/act

🎬 Compose stateful actions to simulate mutable state

functional-programming gleam monad state

Last synced: 04 Mar 2026

https://github.com/daenyth/intro-cats-effect

Slides and video recording for my "Intro to Cats-Effect" talk

cats cats-effect functional-programming scala slides

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https://github.com/arrow-kt/arrow-integrations

Λrrow Integrations is part of Λrrow, a functional companion to Kotlin's Standard Library

arrow functional-programming kotlin-library

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https://github.com/jackfoxy/fsregex

Composable regular expressions for F#

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https://github.com/hyroai/gamla

Python functional programming

functional-programming python

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https://github.com/transeptorlabs/transeptor-bundler

An ERC-4337 Bundler — open-source infrastructure powering Account Abstraction on Ethereum.

account-abstraction bundler erc4337 esm ethereum functional-programming nodejs p2p typescript

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https://github.com/fp4ts/fp4ts

Zero-dependency, purely functional library for effectful programming in Typescript

algebraic-effects category-theory functional-programming higher-kinded-types typelevel typescript

Last synced: 04 Apr 2025

https://github.com/sliptype/vue-pure

⛱ An example of managing state using Purescript in a Vue app

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https://github.com/moonad/Moonad

Moonad: a p2p academic journal, or a social network for code?

academic-journals formal-languages formal-verification formality functional-programming game-development moonad

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https://github.com/mchakravarty/goalsapp

Track periodic goals — a sample iPhone app

frp functional-programming immutable-data-structures iphone sum-types swift value-types

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https://github.com/flintinatux/tinyfunk

The tiniest of functional libraries

functional-programming javascript tiny

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https://github.com/japgolly/microlibs-scala

derivation derive fp functional-programming macros recursion scala scalajs scalaz utilities

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https://github.com/valkyrie-language/valkyrie-document

A language about virtual kontinuation

algebraic-effects delimited-continuations first-class-continuations functional-programming object-oriented-programming

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https://github.com/sandromaglione/fpdart_riverpod

Complete guide on how to build a safe, maintainable, and testable flutter app using fpdart and riverpod

flutter-app flutter-examples fpdart functional-programming riverpod

Last synced: 23 Feb 2026

https://github.com/kwan3854/unity-nope

The fastest functional programming library for Unity – the easiest and quickest way to handle exceptions and null values.

awaitable functional-programming railway-oriented-programming unitask unity unity-package

Last synced: 18 Jul 2025

https://github.com/augusto11cb/java-studies

Repository of my learning notes and programs for fundamental & important concepts of Java programming and development.

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https://github.com/sritchie/scala-rl

Functional Reinforcement Learning in Scala.

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Last synced: 21 Mar 2025

https://github.com/valkyrie-language/.github

A language about virtual kontinuation

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Last synced: 19 Jan 2026

https://github.com/tylors/45

A Functional, monadic test-runner

assertions functional-programming lazy monad test test-runner

Last synced: 30 Oct 2025

https://github.com/avdosev/either_dart

Either class for Dart or Flutter projects.

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Last synced: 23 Oct 2025

https://github.com/perceptual-ai/scala-rl

Functional Reinforcement Learning in Scala.

deep-reinforcement-learning functional-programming reinforcement-learning reinforcement-learning-tutorials

Last synced: 19 Oct 2025

https://github.com/cu1ch3n/type-inference-zoo

🦖 Implementations of various type inference algorithms. Online interactive playground is available at https://zoo.cuichen.cc/

functional-programming haskell programming-languages type-inference zoo

Last synced: 11 Apr 2025

https://github.com/nshkrdotcom/gemini_ex

Elixir Interface / Adapter for Google Gemini LLM, for both AI Studio and Vertex AI

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Last synced: 20 Feb 2026

https://github.com/codelytv/php-finder_refactoring-kata

🐘🔍Incomprehensible Finder Refactoring Kata port for PHP

codelytv composer example fp functional-programming kata php phpunit refactor refactoring sample

Last synced: 30 Jul 2025

https://github.com/armcn/quickcheck

Property Based Testing in R

functional-programming property-based-testing r rstats

Last synced: 09 Oct 2025

https://github.com/code-y/redux-fluent

A Practical and Functional Redux Utility

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Last synced: 10 Feb 2026

https://github.com/loophp/fpt

Functional programming toolbox for PHP.

functional-programming toolbox

Last synced: 06 Oct 2025

https://github.com/2bigo/nancy

How JavaScript Promise Works

asynchronous functional functional-programming javascript promise promise-library

Last synced: 28 Jun 2025

https://github.com/nshkrdotcom/claude_agent_sdk

An Elixir SDK for Claude Code - provides programmatic access to Claude Code CLI with streaming message processing

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Last synced: 19 Feb 2026

https://github.com/crubier/infinistack

Infinite recursion in JS without stack overflow errors, based on magic 🎩✨🐇

functional-programming js recursion

Last synced: 07 Oct 2025

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

帶你探索 functional programming

documentation functional-programming math

Last synced: 07 Feb 2026

https://github.com/svenruppert/functional-reactive-lib

A core java lib for the functional reactive coding ... JDK only

design-pattern functional-programming functional-reactive-programming java java-8 java-9 java-library ruppert sven

Last synced: 22 Jul 2025

https://github.com/healeycodes/golfcart

⛳ A minimal programming language inspired by Ink, JavaScript, and Python.

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https://github.com/facile-it/mutoid

Reactive library for data fetching, caching, state management

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Last synced: 22 Jun 2025

https://armcn.github.io/quickcheck/

Property Based Testing in R

functional-programming property-based-testing r rstats

Last synced: 24 Apr 2025

https://github.com/ctlst-tech/c-atom

Model-based driven real-time embedded software framework for safety-critical and mission-critical application

autopilot catpilot drone embedded embedded-systems functional-programming hardware-agnostic mission-critical model-based-development os-agnostic posix-compliant realtime safety-critical uas uav vms

Last synced: 05 Apr 2025

https://github.com/flintinatux/puddles

Tiny vdom app framework. Pure Redux. No boilerplate.

frontend-framework functional-programming reducer redux vdom virtual-dom

Last synced: 21 Jul 2025

https://github.com/keyvan-m-sadeghi/nancy

How JavaScript Promise Works

asynchronous functional functional-programming javascript promise promise-library

Last synced: 15 Apr 2025

https://github.com/aashari/boilerplate-lambda-typescript

AWS Lambda project template with TypeScript and Terraform. Features serverless architecture, automated deployment pipelines, testing frameworks, local development environment, AWS SDK integration, and standardized project structure for scalable Lambda functions.

aws aws-lambda backend boilerplate cloud-computing functional-programming infrastructure-as-code lambda serverless terraform typescript

Last synced: 12 Sep 2025

https://github.com/47degrees/functional-error-handling

Functional Error Handling

error-handling exceptions exceptions-raised functional-programming monads

Last synced: 03 Jul 2025

https://github.com/bizmonger/nikeza

Platform for associating content to their providers.

elm elm-lang fsharp functional-programming lambda-cartel

Last synced: 21 Aug 2025

https://github.com/rahul-barick/serverless-aws-lambda-node-postgres

Serverless AWS Lambda with Node.js,Postgres Rest API with Sequelize.

aws aws-lambda cloudformation functional-programming gateway-api nodejs postgresql sequelize serverless serverless-architectures serverless-framework

Last synced: 29 Jul 2025

https://github.com/phenax/pipey

Create pipeline operator ready functions by converting instance methods's to context-free functions

currying functional-programming javascript pipe-operator prototype

Last synced: 14 Apr 2025

https://github.com/75lb/typical

Isomorphic, functional type-checking for Javascript

functional-programming isomorphic javascript javascript-library load-anywhere nodejs type-checking types

Last synced: 02 Mar 2026

https://github.com/pointfreeco/swift-quickcheck

🏁 An implementation of QuickCheck in Swift.

functional-programming property-testing quickcheck swift

Last synced: 13 Apr 2025

https://github.com/iitalics/opal

Simple and powerful programming language with type inference

functional-programming programming-language static-typing type-inference

Last synced: 06 Apr 2025

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

Contém todas as fichas relativas à cadeira de Programação Funcional, do ano letivo 2018/19, e resoluções de testes e exames de anos anteriores.

exames fichas functional-programming haskell lei miei pf programacao-funcional resolucao resolucoes solucao solucoes testes uminho

Last synced: 15 Aug 2025

https://github.com/nitrodevs/csharpfunctionalextensions.fluentassertions

A small set of extensions to make test assertions more fluent when using CSharpFunctionalExtensions! Wow!

functional-programming hacktoberfest monad tdd testing

Last synced: 14 Jan 2026

https://github.com/iheartradio/thomas

Another A/B test library

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Last synced: 12 May 2025

https://github.com/Darkhogg/polyethylene

easy manipulation of iterables and async itrerables

async-iterables functional-programming iterables typescript

Last synced: 23 Mar 2025

https://github.com/obfusk/koneko

koneko - a concatenative not-quite-lisp for kittens

concatenative functional-programming language lisp programming-language stack work-in-progress

Last synced: 11 Apr 2025

https://github.com/anssihalmeaho/funl

FunL programming language

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Last synced: 18 Feb 2026

https://github.com/mitranim/emerge

Use plain JS types as immutable data, with efficient merging and memory sharing

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Last synced: 30 Apr 2025

https://github.com/calvinlfer/es-cqrs-shopping-cart

A resilient and scalable shopping cart system designed using Event Sourcing (ES) and Command Query Responsibility Segregation (CQRS)

akka akka-actors akka-cluster-sharding akka-http akka-persistence akka-streams cassandra cats functional-programming kafka postgresql protocol-buffers scala slick

Last synced: 24 Jun 2025

https://github.com/ioleo/zio-by-example

Source code for "ZIO by example" blog post.

functional-programming scala zio

Last synced: 05 May 2025

https://github.com/csabahruska/manual-stg-experiment

Manually constructed STG programs compiled with the standard GHC codegen backend.

codegen compiler functional-programming ghc haskell llvm machine-code stg x64

Last synced: 12 Apr 2025

https://github.com/galad/csharpdiscriminatedunion

A library for generating discriminated union types in C#

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Last synced: 09 Apr 2025

https://github.com/ritesh404/kudojs

A utility library to write code in functional programming style in Javascript

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Last synced: 16 Nov 2025

https://github.com/ghurtchu/diary

:pencil2::clipboard: JWT auth based persistent (MongoDB) RESTful API for managing notes along with searching and sorting capabilities.

backend crud functional-programming jwt mongodb onion-architecture password-hashing reactive-mongo restful-api scala scala3 zio zio-http zlayer

Last synced: 28 Apr 2025

https://github.com/keera-studios/haskell-titan

Testing Infrastructure for Temporal AbstractioNs

debugging frp functional-programming functional-reactive-programming haskell quickcheck record-and-replay testing visual-debugging

Last synced: 08 Aug 2025

https://github.com/xodio/hm-parser

A parser for Hidnley Milner notations

fp functional-programming hindley-milner parser

Last synced: 13 Apr 2025

https://github.com/arichiardi/fonda

An async pipeline approach to functional core - imperative shell.

clojurescript functional-programming javascript

Last synced: 12 Dec 2025

https://github.com/sebinsua/redux-saga-helpers

:ambulance: Error-handling for redux-saga.

errors functional-programming handlers redux-saga

Last synced: 19 Apr 2025

https://github.com/ken-okabe/vanfs

🍦 VanFS: 1:1 bindings from F# to 🍦VanJS (an ultra-lightweight , zero-dependency , and unopinionated Reactive UI framework based on pure vanilla JavaScript and DOM without React/JSX) + WebComponents + micro FRP

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Last synced: 15 Jun 2025

https://github.com/mystpi/bella

🐶 Bella ⌁ A simple functional programming language ⌁ Written in Gleam!

functional-programming gleam interpreter lexer nodejs parser programming-language

Last synced: 04 May 2025

https://github.com/jycabello/defuncto

Functional library for C#, aiming to keep the minimum data types for ease of maintenance

functional-programming

Last synced: 05 Oct 2025

https://github.com/ymyzk/lambda-dti

Interpreter of the ITGL with dynamic type inference

dune functional-programming gradual-typing hindley-milner interpreter ocaml repl type-inferece

Last synced: 24 Jul 2025

https://github.com/robinpokorny/transform-props-with

:repeat: Functional approach to React component reuse

decorator functional-js functional-programming props react react-native recompose transformations

Last synced: 20 Feb 2026

https://github.com/howprogrammingworks/functor

Mappable objects

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Last synced: 09 Mar 2026

https://github.com/jkalias/functional_cpp

A wrapper of common C++ std types for functional programming

cpp functional-programming

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https://github.com/react-declarative/react-pocketbase-crm

The most advanced starter kit for CRM system build with Pocketbase. It includes Kanban board, JSON form layout engine, feature model support, field visibility flags, grid component with fulltext search and modal filters.

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