An open API service indexing awesome lists of open source software.

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.

https://github.com/harrisongrodin/structure-editor

Structure editor for a basic typed functional programming language

functional-programming structure-editor

Last synced: 12 Oct 2025

https://github.com/fr33m0nk/type-driven-functional-programming

Typedriven Functional programming in Typescript targeting Bun runtime

bun functional-programming type-driven-development typescript

Last synced: 12 Oct 2025

https://github.com/edgarberm/pills

A collection of fun JavaScript functions (ES6) 😎🎉🎈

functional functional-js functional-programming javascript pill

Last synced: 13 Oct 2025

https://github.com/elm-athlete/elm-function

Function helpers for elm!

elm function functional-programming

Last synced: 11 Dec 2025

https://github.com/manojpawar94/spring-boot-reactive-restapi-mongodb-webflux

Spring boot reactive (Non-blocking) programming using Spring boot Webflux and Spring boot Reactive MongoDB.

functional-programming java8 mongodb reactive reactive-programming restapi restful-api spring-boot webflux

Last synced: 13 Oct 2025

https://github.com/kemsky/stream

ActionScript collection library with modern functionality

actionscript adobe-air adobe-flash adobe-flex collections functional-programming

Last synced: 05 Feb 2026

https://github.com/novid/guide.elm-lang.ir

Elm guide in Persian (fa_IR)

elm functional-programming guide persian

Last synced: 14 Oct 2025

https://github.com/dev-cetera/df_safer_dart

A package inspired by Rust and functional programming, designed to bring structure, clarity, and safety to your Dart applications.

dart flutter functional-programming library option package result rust

Last synced: 11 Jan 2026

https://github.com/chocolateloverraj/observables

A collection of examples of observing different data types in JavaScript.

cspell eslint functional-programming javascript no-class observable react standard-js storybook typescript

Last synced: 30 Dec 2025

https://github.com/slamko/ocadl

Blazingly type safe GPU accelerated Multi-Layer Perceptron

deep-learning dependent-types functional-programming gadt neural-network ocaml type-safe

Last synced: 16 Oct 2025

https://github.com/pedro-gutierrez/elementaryjs

Declarative and functional UIs with a hint of Elm

elementaryjs elm es6 functional-programming incremental-dom js json scheme

Last synced: 18 Oct 2025

https://github.com/jackfirth/lambda-calculus

A racket language for lambda calculus

functional-programming lambda-calculus language racket

Last synced: 27 Jan 2026

https://github.com/attack-monkey/zeron

A lightweight functional / reactive application framework in typescript

framework front-end frontend functional functional-programming functional-reactive-programming

Last synced: 19 Oct 2025

https://github.com/coderaiser/currify

translate the evaluation of a function that takes multiple arguments into evaluating a sequence of functions, each with a single or more arguments

curry functional functional-programming

Last synced: 21 Feb 2026

https://github.com/jeltsch/wflp-2019

A Process Calculus for Formally Verifying Blockchain Consensus Protocols (WFLP ’19 invited contribution)

blockchain distributed-computing formal-verification functional-programming higher-order-abstract-syntax process-calculus

Last synced: 24 Feb 2026

https://github.com/sean-clayton/ls-react

A little library to make writing React code in LiveScript a little nicer.

functional-programming javascript livescript react

Last synced: 26 Oct 2025

https://github.com/camille-hdl/lazy-lists

Lazy list processing toolkit for PHP

functional-programming iteration transducers

Last synced: 27 Oct 2025

https://github.com/ibrahimcesar/category-theory-for-the-javascript-typescript-developers

🔢 Category Theory for JavaScript/TypeScript developers. An embedded DSL making functors, monads, and adjunctions explicit and manipulable.

adjunctions category-theory category-theory-for-programmers composition dsl educational fp-ts functional-programming functor javascript monad typescript

Last synced: 30 Jan 2026

https://github.com/imrafaelmerino/java-fun

java-fun simplifies Property-Based Testing in Java by providing powerful and composable Pseudo Random Generators. These generators enable the creation of diverse test cases effortlessly, making testing more effective and intuitive for developers.

functional-programming generator java jmeter property-based-testing

Last synced: 30 Jan 2026

https://github.com/fernandoareias/web-server-erl

Web server implemented with erlang and staged event-driven architecture

eda erlang event-driven-architecture functional-programming seda staged-event-driven-architecture webserver

Last synced: 25 Feb 2026

https://github.com/reussir-lang/reussir-playground

A programming language with region-based memory management

functional-programming llvm memory-management mlir

Last synced: 25 Feb 2026

https://github.com/muddassir235/tilawa

An Android Library, written in Kotlin, for streaming tilawa of the Qur'an from the web. Currently mp3quran.net is supported

android android-library functional functional-programming kotlin kotlin-library quran tilawa

Last synced: 01 Feb 2026

https://github.com/muhammadhassanraza25/todo-app-firebase

A dynamic Todo App built with HTML, CSS, and JavaScript, integrated with Firebase for real-time data management. Features include seamless editing and deleting of tasks for efficient list management.

creative-coding css3 firebase functional-programming html5 javascript todoapp

Last synced: 26 Feb 2026

https://github.com/yurrriq/tdd-with-idris

:book: Working through Type-Driven Development with Idris

dependent-types functional-programming idris learning theorem-proving type-driven-development

Last synced: 08 Feb 2026

https://github.com/imrafaelmerino/vertx-effect

Vertx-effect brings functional effects to the Vert.x ecosystem and is inspired by Erlang’s actor model. Its manifesto emphasizes principles such as maximizing the use of verticles for scalability, maintaining single responsibility for each verticle, and prioritizing simplicity to enhance reliability and ease debugging.

erlang functional-programming java json-values persistent-data-structure vertx vertx-values vertx3

Last synced: 27 Feb 2026

https://github.com/pertsevds/predicate_dispatch

Predicative dispatch decorator for Python, based on idea from book "Functional Programming in Python"

dispatch functional-programming python

Last synced: 11 Feb 2026

https://github.com/sandromaglione/supabase-ts

Use supabase with Functional Programming and fp-ts

fp-ts functional-programming io-ts javascript supabase supabase-js typescript

Last synced: 11 Feb 2026

https://github.com/jottenlips/deprecated-jottenlips.github.io

📃 ReasonML markdown blog engine, turn an S3 bucket into a Github Pages blog

blog-engine experiment functional-programming jamstack javascript markdown ocaml react reason reasonml webpack

Last synced: 12 Feb 2026

https://github.com/daretodave/zurch

JavaScript library for common FP patterns

functional-programming functions tacit typescript-library

Last synced: 14 Feb 2026

https://github.com/aygp-dr/scheme-llm-toolkit

Composable Guile Scheme library for LLM integration featuring functional APIs, type-safe bindings, and meta-programming support for AI-powered development

functional-programming guile llm scheme

Last synced: 14 Feb 2026

https://github.com/rborovina/scala-minesweeper

This is a Scala implementation of the classic Minesweeper game. The project features different difficulty levels, the ability to save and load games, hints, and a scoring system that takes into account the number of bombs, hints used, elapsed time, and user actions.

functional-programming scala

Last synced: 02 Mar 2026

https://github.com/papilo-cloud/mern-skeleton

This skeleton application will encapsulate rudimentary features and a workflow that's repeated for most MERN applications.

crud expressjs functional-programming javascript mern-stack mongodb mongoose nodejs tailwindcss

Last synced: 27 Mar 2026

https://github.com/noyzys/nautchkafe-vanish

A simple bukkit/spigot plugin 1.21 :: vanish moderation system.

adventure bukkit bukkit-plugin fp functional-programming java kyori spigot spigot-plugin vanish vanishing

Last synced: 05 Mar 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/webcpu/haskellswift

A functional library for Swift programmers

functional-programming haskell swift

Last synced: 02 Mar 2025

https://github.com/marceloboeira/euler

ƛ Project Euler solved in some different languages

c challenge euler euler-exercises euler-solutions functional-programming haskell math ruby

Last synced: 01 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/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/tmorin/faggregate

Unlock the Power of DDD Aggregates and Functional Programming with `faggregate`!

aggregate ddd functional-programming java

Last synced: 28 Oct 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/jonnor/hangdrum

Electronic percussive instrument using capacitive touch (firmware)

arduino cplusplus-11 embedded-systems firmware functional-programming midi

Last synced: 03 Apr 2025

https://github.com/janstuemmel/yep

Easy functional programming with Typescript

category-theory fp functional-programming futures javascript promises typescript

Last synced: 29 Jan 2026

https://github.com/veggiemonk/theme-solarized-light-fjs

Based on Solarized light and tailored for functional programming style in JavaScript

functional-programming javascript light-theme

Last synced: 02 Apr 2025

https://github.com/vonzhou/scalaimpatient

Scala for the Impatient 《快学Scala》第一版习题代码

functional-programming scala

Last synced: 21 Feb 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/benfaerber/json-parser-combinator

A JSON parser written in Typescript using the Parser Combinator methodology. I recommend that anyone who is interested in functional parsers should use this as a reference.

functional-programming functional-typescript json parser parser-combinator parsing

Last synced: 12 Mar 2025

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/softinio/duck4s

Scala 3 wrapper library for DuckDB

database duckdb functional-programming jvm millbuild munit scala

Last synced: 28 Oct 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/deanrad/antares-ts

Antares is an Architecture for making real-time applications with confidence.

async functional-programming observable promise react reactive-programming redux rxjs rxjs6

Last synced: 20 Jan 2026

https://github.com/thinkswan/js-functional-programming-examples

Notes from Jeremy Fairbank's "Functional Programming Basics in ES6" talk.

functional-programming javascript

Last synced: 22 Feb 2025

https://github.com/tk3369/functionalpipes.jl

Functional pipe utility

functional-programming julia

Last synced: 09 Jul 2025

https://github.com/paule96/azurefunctiondownloader

A Azure Function you can send http url's of files that put it in a zip Archiv.

azure azure-functions azurefunctions dotnet-core downloader functional-programming zip

Last synced: 17 Mar 2025

https://github.com/nem035/youtube-monad-ish

Simple Youtube watcher app built using functional programming paradigms

bacon functional-js functional-programming javascript monad ramda youtube

Last synced: 03 Apr 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/jaalonso/exercitium2013

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

functional-programming haskell haskell-exercises

Last synced: 27 Mar 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/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/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/cdboer/programmierung-ss19

📝 Übungsmaterialien für die Lehrveranstaltung Programmierung im Sommersemester 2019

functional-programming haskell imperative-programming lambda-calculus logic-programming prolog tu-dresden

Last synced: 28 Mar 2025

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/agapas/react-currency-converter

React currency converter - a single page app made with React in functional programming like approach, which uses the exchanged rates API

currency-converter ecmascript enzyme exchanged-rates-api functional-programming jest react react-currency-converter reactjs

Last synced: 10 Jul 2025

https://github.com/kavignon/.netdemocode

Demo code used in talks, blog posts etc

csharp demo-app fsharp functional-programming netcore reactjs slides

Last synced: 04 Apr 2025

https://github.com/morganconrad/f-readline

Thin layer over node's readline module to provide functional support: map, reduce, filter, forEach()

async filter foreach functional-programming map node-readline readline reduce

Last synced: 10 Jul 2025

https://github.com/federicobruzzone/setup-ocaml-project-without-dune

This repository provides a basic setup for an OCaml project without using Dune as the build system. It aims to provide a simple and straightforward structure for your OCaml project, allowing you to focus on writing code without the complexities of a build system.

functional-programming ocaml ocamlbuild project-template setuptools

Last synced: 19 Jan 2026

https://github.com/jmargenberg/monok

Alternative pipe operators for clean handling of `{:ok, value}` and `{:error, reason}` tuples in Elixir

elixir functional-programming

Last synced: 04 Apr 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/davidgregory084/robots

A helper library for validating data with Cats

cats functional-programming scala validation

Last synced: 04 Apr 2025

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/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/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/hanzopgp/haskelltest

First time using functional programming language.

functional-programming haskell university

Last synced: 22 Jun 2025

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/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/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