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: 2026-03-21 00:11:41 UTC
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https://github.com/edumserrano/csharp-functional

csharp-functional provides a set of NuGet packages to drive your coding towards a functional approach as well as enabling Railway Oriented programming

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Last synced: 22 Sep 2025

https://github.com/scala-exercises/exercises-monocle

Scala Exercises for the Scala Optics library Monocle http://julien-truffaut.github.io/Monocle/

functional-programming immutable-datastructures lenses optics tutorial

Last synced: 10 Apr 2025

https://github.com/danielobara/nlw-together-elixir

Wabanex - Gerencie e acompanhe seus treinos na academia! Evento NLW Together organizado pela @Rocketseat :rocket:

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Last synced: 10 Apr 2025

https://github.com/joshuawise/vapr

A framework for writing expressive, functional-style apps 🌹

app framework functional-programming http server service

Last synced: 11 Apr 2025

https://github.com/maif/functional-json

Parse and write json the functional way

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Last synced: 14 Apr 2025

https://github.com/davidgregory084/inc

Experiments with incremental compiler construction on the JVM

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Last synced: 07 May 2025

https://github.com/r17x/js

JavaScript/TypeScript/ReScript Library Collections. 🔥

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Last synced: 23 Oct 2025

https://github.com/geirolz/toolkit

A Scala 3, lightweight and functional non-intrusive library to build typed and declarative Scala application with managed resources and dependencies

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Last synced: 20 Aug 2025

https://github.com/functionalland/functional-io

IO methods as valid Task monads perfect to write great point-free software in JavaScript that is compatible with most modern browsers and Deno.

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https://github.com/fsynthlib/fsynth

Music synthesizer, written for fun and to learn stuff

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https://github.com/eleev/swift-functional

🧠 Articles and notes about functional programming in Swift.

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https://github.com/zhukovgreen/friendly-sequences

Friendly, Scala like, Sequence interface

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https://github.com/active-group/funar

Materials for FUNAR trainings - previous trainings are archived as branches

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https://github.com/tanrax/soy-un-buen-programador-js

Juego con retos sencillos de JavaScript para probarte a ti mismo que sabes lo que haces

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

This is the main website for Arrow, the functional companion to Kotlin's Standard Library

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https://github.com/howprogrammingworks/future

Future as Asynchronous Abstraction

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https://github.com/sbernheim4/excoptional

A fully typed, zero-dependency implementation of the functional programming Option object for JavaScript and TypeScript

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https://github.com/burz/cfl

a Compileable statically typed Functional programming Language

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https://github.com/absognety/atomic-scala

Atomic Scala Book Solutions - for Beginners and first time Functional Programmers

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https://github.com/glebec/lambda-talk-practical

Some JS techniques and tools which are at least associated with lambda calculus

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Last synced: 31 Jul 2025

https://github.com/d-plaindoux/mfun

Micro functional langage

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https://github.com/lebrancconvas/computer-science-ebooks

Library Repository for someone who is interested and wants to read some Computer Science E-Books.

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https://github.com/q69k/using-cps-in-golang

Article about using CPS in Golang

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https://github.com/kimpro82/moocoke

Learn from MOOC like doing coke, but do not really coke

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https://github.com/imclerran/roc-isodate

A Roc package for parsing ISO Date/Time strings. 📆⏰📦

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https://github.com/metagn/applicates

generalized compile time routine and symbol pointers

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https://github.com/cranst0n/ribs

FP inspired packages for Dart

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https://github.com/fuselang/fuse

Statically typed functional programming language.

functional-programming plt scala

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https://github.com/vlingo/xoom-streams

The VLINGO XOOM platform SDK for Reactive Streams built on XOOM ACTORS.

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https://github.com/lloydmeta/http4s-doobie-docker-scratchpad

Playing around with http4s + doobie + docker

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https://github.com/sagifogel/proptics

Profunctor optics and lenses library for Scala

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https://github.com/brianneisler/stutter

Functional programming framework for Javascript/ES6 inspired by Clojure

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https://github.com/js-choi/proposal-function-demethodize

Draft specification for a standard demethodize function in JavaScript.

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https://github.com/fuwn/pywal.nix

🌈 Extremely straightforward evaluation-time Pywal integration for Home Manager

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Last synced: 04 Mar 2026

https://github.com/aabs/fifthlang

Fifth is a multi-paradigm language for the .NET platform treating Knowledge Graphs as first-class citizens, embedding RDF and SPARQL syntax directly into the code. It combines functional programming idioms—such as list comprehensions, lambdas, and pattern matching—with .NET interoperability and a Roslyn-based compilation pipeline.

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https://github.com/nshkrdotcom/foundation

Elixir infrastructure and Observability Library

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https://github.com/eikek/calev

Work with systemd.time like calendar events in Scala

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Last synced: 26 Mar 2025

https://github.com/paysure/orinoco

Functional composable pipelines allowing clean separation of the business logic and its implementation

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Last synced: 21 Nov 2025

https://github.com/d-plaindoux/parsec.kotlin

Kotlin Parser combinators

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https://github.com/rudyhuynh/front-end-note

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https://github.com/yannvanhalewyn/boyscout

A clojurescript rewrite of Pathfinding Visualizer

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https://github.com/massix/gleamfonts

Small CLI tool to download and install nerdfonts on Termux environment

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https://github.com/vahidzee/dypy

Toolkit for Dynamic Python code manipulations

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Last synced: 17 Mar 2026

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

unlimitedjs is a minimal JavaScript framework for building production-ready UI with no limitations, full flexibility and zero rules - just pure functional and reactive programming to compose virtual DOM in JSX/TSX

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Last synced: 03 Mar 2026

https://github.com/weavedb/fpjson

Language-Agnostic Functional Programming in JSON

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Last synced: 26 Oct 2025

https://github.com/almide/almide

A functional programming language optimized for LLM code generation. Compiles to Rust, TypeScript, JavaScript, and WebAssembly.

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Last synced: 14 Mar 2026

https://github.com/argyleink/css-n-js

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Last synced: 11 Apr 2025

https://github.com/vitorluizc/cullender

Search data and create complex filters by compose filter functions.

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Last synced: 13 Apr 2025

https://github.com/bynect/algorithm-w

Type inference implementation in OCaml using Algorithm W

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Last synced: 20 Oct 2025

https://github.com/kevin-lee/refined4s

newtype and refinement (refined) type for Scala 3

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Last synced: 28 Dec 2025

https://github.com/grignaak/cow-collections

Performant copy-on-write collections on the jvm

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Last synced: 14 Jan 2026

https://github.com/mikong/mori

Tree data structures implemented in Rust

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https://github.com/jbouwman/epsilon

Common Lisp programming environment

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Last synced: 06 Feb 2026

https://github.com/battila7/burette

Chemical programming framework based on Banâtre's Gamma

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Last synced: 16 Mar 2026

https://github.com/unruly/control

A collection of functional control-flow primitives and utilities.

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Last synced: 14 Jan 2026

https://github.com/wmaurer/ngx-fp-ts

Angular structural directives for fp-ts types (Option, Either).

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Last synced: 04 Mar 2026

https://github.com/ghurtchu/fluentry

:policeman::oncoming_police_car: Manage unchecked exceptions functionally.

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Last synced: 28 Apr 2025

https://github.com/nshkrdotcom/sinter

Unified schema definition, validation, and JSON generation for Elixir

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Last synced: 21 Feb 2026

https://github.com/xlisp/algorithm-visualizer-gpter-fper

算法可视化开发，GPT辅助生成，函数式化后去递归的算法辅助开发脚手架平台

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Last synced: 28 Apr 2025

https://github.com/nshkrdotcom/snakepit

High-performance, generalized process pooler and session manager for external language integrations. Orchestrates and supervises languages like Python and Javascript from Elixir.

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Last synced: 22 Feb 2026

https://github.com/pitchart/transformer

A PHP transducers implementation in a fluent way

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Last synced: 02 Jul 2025

https://github.com/willmcpherson2/letscape

Functional programming, structural editing

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Last synced: 28 Apr 2025

https://github.com/jakubriegel/clojure-spring

Demo of using Spring in Clojure with some Java integration

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Last synced: 15 Apr 2025

https://github.com/JiaYaobo/stamox

make your statistical research faster

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Last synced: 01 May 2025

https://github.com/surrsurus/gazelle

Scripting language inspired by LISP and Scheme

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Last synced: 15 Aug 2025

https://github.com/Fuwn/pywal.nix

🌈 Extremely straightforward evaluation-time Pywal integration for Home Manager

functional-programming home-manager nix nixos pywal wal

Last synced: 04 Oct 2025

https://github.com/modulovalue/abstract_dart

A collection of algebraic structures borrowed from abstract algebra. Semigroup, Monoid, Group & Field.

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Last synced: 13 Apr 2025

https://github.com/bjoernloetters/lambda-m

A lazy and untyped experimental programming language

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Last synced: 05 May 2025

https://github.com/tomeraberbach/programming-in-haskell-exercises

My solutions for the exercises presented in Graham Hutton's Programming in Haskell.

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Last synced: 31 Jul 2025

https://github.com/pera/ad-hoc

Ad-hoc programming language

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Last synced: 11 May 2025

https://github.com/kaihodev/hikidashi

Convenient, simple, functional JavaScript. Like hikidashi boxes. Check out develop branch!~

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Last synced: 30 Oct 2025

https://github.com/evandrolg/pipe.lua

An implementation of the `pipeline` operator in Lua

functional-programming pipe

Last synced: 25 Sep 2025

https://github.com/joaomilho/zealot

λ Server as a function for Node.js

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Last synced: 13 Apr 2025

https://github.com/kevin-lee/logger-f

logger-f, Logger for F[_]

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Last synced: 13 Apr 2025

https://github.com/proost-assistant/ProostLean

An reimplementation of the Proost proof-assistant written in Lean 4

functional-programming lean4 programming-language proof-assistant type-theory

Last synced: 22 Jul 2025

https://github.com/reasno/composemixins

ComposeMixins is a tiny but extendable PHP library for function composition.

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Last synced: 06 Apr 2025

https://github.com/bhou/bouton.js

A framework to build your asynchronous reactive library.

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Last synced: 11 Jul 2025

https://github.com/imclerran/Roc-IsoDate

A Roc package for parsing ISO Date/Time strings. 📆⏰📦

functional-programming iso8601 package roc-lang

Last synced: 10 May 2025

https://github.com/kapelianovych/fluss-core

Core functions and structures for functional programming.

functional-programming monad typescript

Last synced: 28 Apr 2025

https://github.com/hoc081098/dart_either

Either monad for Dart language and Flutter framework. The library for error handling and railway oriented programming. Supports `Monad comprehensions` (both `sync` and `async` versions). Supports `async map` and `async flatMap` hiding the boilerplate of working with asynchronous computations `Future<Either<L, R>>`. Error handler library for type-safe and easy work with errors on Dart and Flutter. Either is an alternative to Nullable value and Exceptions.

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