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/olaoluwam/todo-app-api

A todo app API written in fp-ts

fp-ts functional-programming nodejs

Last synced: 22 Apr 2026

https://github.com/jeffersonribeiro/html5-canvas-tetris

Built by following Math Math Method Tutorial

canvas functional-programming html5

Last synced: 16 May 2025

https://github.com/pyrex41/shen-rust

Shen language port in Rust — 134/134 kernel conformance; tree-walker + AOT-compiled kernel + bytecode VM + opt-in GC; first-class AWS Cedar authorization integration.

authorization bytecode-vm cedar compiler functional-programming garbage-collector interpreter klambda programming-language rust shen theorem-prover

Last synced: 21 Jun 2026

https://github.com/hablapps/pureflow

Spark ETLs, in a purely functional way

functional-programming pipelines scala spark typeclasses

Last synced: 25 Apr 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/totallymoney/dynamodb.ok

Functional wrapper around AWS DynamoDB client in F#

aws aws-dynamodb dynamodb fsharp functional functional-programming result-type

Last synced: 21 Feb 2026

https://github.com/belsrc/fjp

WIP, ye be warned - Function Js Playground: A place for me to play with functional coding in Javascript

functional functional-programming javascript

Last synced: 11 Apr 2025

https://github.com/laurabeatris/fp-ts-learning

Learning resources related to funcional programming with TypeScript

fp-ts functional-programming typescript

Last synced: 07 Apr 2025

https://github.com/zhentian-wan/fp-crocks-demo

Learning Functional Programming library Crocks, Maybe type and more

crocks functional-programming javascript

Last synced: 11 Jun 2026

https://github.com/imfi-jz/haxe-functional

Tools for writing Haxe code in the functional programming paradigm.

functional-programming haxe library

Last synced: 10 Mar 2025

https://github.com/qualityshepherd/splog

A simple, single page, blog written in functional, vanilla js that supports markdown, rss, podcasts and deploys to github pages (github.io).

ava blog e2e functional-programming github-pages markdown marked pagination puppeteer rss search spa testing unit-test vanilla-js

Last synced: 22 Nov 2025

https://github.com/brettm12345/projection

Next generation project management cli WIP

command-line functional-programming project-management

Last synced: 19 Mar 2025

https://github.com/laurabeatris/list-length-recursion

Elixir algorithm exercise to practice recursion using tail call optimization

algorithms-and-data-structures elixir functional-programming recursion

Last synced: 07 Apr 2025

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/dlemel8/network_parser_combinator

POC of parsing network protocols using parser combinators pattern

dtls12 functional-programming network-protocols parser-combinator rust tdd tls12 tls13

Last synced: 21 Jun 2026

https://github.com/pfpack/pfpack-unit-test

PrimeFuncPack Unit Test - a functional programming pack for .NET

csharp dotnet dotnet-core functional-programming unit-test unit-testing

Last synced: 01 Mar 2025

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/jonnor/hangdrum

Electronic percussive instrument using capacitive touch (firmware)

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

Last synced: 27 Apr 2026

https://github.com/dotpep/cli-weather-app

Weather Apps in CLI with third party API and GPS tracking ps scripts, Clean Architecure and Software Design using Type Hintings in Python.

clean-architecture clean-code cli-application functional-programming gps-tracker oop-python openweathermap-api powershell-script python typed-python weather-app

Last synced: 28 Apr 2026

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

Functional programming helpers for Enonic XP

enonic enonic-xp fp-ts functional-programming typescript

Last synced: 16 Jun 2026

https://github.com/culturehq/react-state-mutations

Modify component state without race conditions.

functional-programming react

Last synced: 28 Apr 2026

https://github.com/sourcevault/lazybindall

like bindall but lazy - meaning closures get created when needed.

functional-programming javascript livescript mostjs

Last synced: 21 Jan 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/daggerok/spring-kotlin-examples

This repository contains some my kotlin examples and links to other my repos with kotlin projects

functional functional-programming functional-reactive-programming kotlin reactive reactive-programming security spring-5 spring-boot spring-kotlin webclient webflux

Last synced: 28 Apr 2026

https://github.com/univalence/spark-plumbus

Collection of tools for Scala Spark

functional-programming scala spark

Last synced: 17 Apr 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/phenax/ts-types-runtime

A runtime for typescript's type system that turns it into a general purpose, purely functional programming language with effects!

effects functional-programming type-level-programming typescript

Last synced: 29 Apr 2026

https://github.com/git-marcopitra/remove-unnecessary-parenthesis

Problem of unnecessary parenthesis with Functional Programming

functional-programming testing

Last synced: 06 Dec 2025

https://github.com/mohammadsafia/focus-time-react-native

This application makes you focus on specific tasks for a time and acts as an alarm to notify you of the end of the time allocated to the task

clean-architecture clean-code functional-programming hooks react-native typescript

Last synced: 09 May 2026

https://github.com/isaac-defrain/todo

Todo list application built to explore different features of the OCaml language

functional-programming functors modules ocaml

Last synced: 02 Apr 2025

https://github.com/softinio/duck4s

Scala 3 wrapper library for DuckDB

database duckdb functional-programming jvm millbuild munit scala

Last synced: 29 Apr 2026

https://github.com/solangeug/lambdas-and-streams

Project based on Oracle's Introduction to Lambda Expressions and the Streams API MOOC.

functional-programming java-8 lambda-expressions oracle-mooc streams-api

Last synced: 09 May 2026

https://github.com/mesteche/react_stream

sample demo app of react and async iterators

async-iterators functional-programming react stream

Last synced: 01 May 2026

https://github.com/olian04/simply-result

Simply typesafe Result and Option monads in typescript and javascript.

fp functional-programming javascript monad monad-types monads option option-type result result-type typescript

Last synced: 01 May 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/elias8/outcome

A dart library that provides a functional approach to error handling.

dart either-monad flutter functional-programming

Last synced: 01 May 2026

https://github.com/chrismichaelps/scats

A comprehensive TypeScript library bringing Scala's powerful functional programming paradigms to JavaScript/TypeScript, featuring immutable collections, monads, pattern matching, and more

algebraic-data-types either-type functional-programming immutable-collections lazy-evaluation lazylist monads option-type pattern-matching resource-management scala scala-inspired scala-patterns scats state-monad try-pattern tuple typeclasses vector writer-monad

Last synced: 03 Mar 2026

https://github.com/sajmoni/ts-elm

Elm types in TypeScript

elm fp functional-programming result typescript

Last synced: 15 Apr 2026

https://github.com/armcn/quone-lang

A statically typed functional language that compiles to readable R code

functional-programming rstats

Last synced: 08 Jun 2026

https://github.com/boddepallyvenkatesh06/qtify

QTify is an music album website which consists of variety of albums, songs which user can browse.

accordion-flexbox conditional-rendering css3 functional-programming hooks material-ui reactjs swipperjs toaster

Last synced: 13 Apr 2026

https://github.com/astridlyre/fp

fp - My little functional programming library

functional-programming iterable javascript multimethods observable stream

Last synced: 01 May 2026

https://github.com/aabs/fifthlang-old

Fifth is a multi-paradigm programming language featuring .NET compatibility, efficient functional programming with seamlessly embedded knowledge graphs

compiler dotnet functional-programming knowledge-graph rdf

Last synced: 17 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/sofiane-abou-abderrahim/javascript-programming-paradigms

I built this little JavaScript demo in three different ways by using the three programming paradigms: Procedural Programming, Oriented Object Programming and Functional Programming.

functional-programming javascript oriented-object-programming procedural-programming programming-paradigms

Last synced: 03 Apr 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/taharachedi/bank

💼 Client Management System in C++ – Easily manage, update, and organize client data with a simple console interface! 📂🔧

algorithms console-application console-game enums files functional-programming problem-solving string-manipulation structu

Last synced: 14 Jun 2025

https://github.com/brettchalupa/result

Type-safe Result pattern for TypeScript, inspired by Rust

bun deno error-handling functional-programming jsr monads result rust-inspired type-safe typescript

Last synced: 05 May 2026

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

A simple Redis client in tune with Functional Programming principles in JavaScript for Deno.

deno denoland functional functional-programming functor monoid redis

Last synced: 05 May 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: 06 May 2026

https://github.com/wilsonibekason/codewars

This is a platform where we answer all the most advanced codewars question on algorithm and data-structure

algorithms-and-data-structures codewars-javascript codewars-solutions functional-programming object-oriented-programming senior-code

Last synced: 07 Jun 2026

https://github.com/fbn/yado-js

Yet Another Javascript Do-Notation

composing do-notation functional-programming monads

Last synced: 16 Mar 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: 07 May 2026

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: 07 May 2026

https://github.com/kuredoro/mplbook_solutions

Almost all solutions to the exercises from "C++ Template Metaprogramming" book.

cpp functional-programming solutions template-metaprogramming templates

Last synced: 24 Mar 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: 07 May 2026

https://github.com/josephgoksu/reactive-microservices

This project epitome of reactive microservice architecture. Protocols, transports, unit/e2e tests and implementations are all in the same place.

functional-programming functional-reactive-programming microservice microservices microservices-architecture nestjs rxjs

Last synced: 08 May 2026

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: 09 May 2026

https://github.com/hyperpolymath/casket-ssg

Pure functional static site generator in Haskell. Strong type guarantees ensure your site builds correctly.

content-tools functional-programming haskell hyperpolymath poly-ssg publishing ssg static-site static-site-generator templates themes websites websites-and-cms

Last synced: 13 Jan 2026

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/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/nhyne/zio-bazel

Playground for learning ZIO things

functional-programming scala zio

Last synced: 28 Jun 2026

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/novid/guide.elm-lang.ir

Elm guide in Persian (fa_IR)

elm functional-programming guide persian

Last synced: 14 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/elm-athlete/elm-function

Function helpers for elm!

elm function functional-programming

Last synced: 11 Dec 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/ldaniels528/lollypop

Lollypop is a development platform built to suit the needs of developers of small to medium software projects, and features an integrated database, web services, scenario-driven test suite, and more.

csv dataframe declarative-programming etl functional-programming java json json-parser jvm kafka lollypop matrix matrix-calculations matrix-multiplication reactive-programming scala scripting-language spark sql

Last synced: 28 Jan 2026

https://github.com/bardoor/then

Simple way to set after-function callback

aspect-oriented-programming elixir functional-programming

Last synced: 06 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/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/harrisongrodin/structure-editor

Structure editor for a basic typed functional programming language

functional-programming structure-editor

Last synced: 12 Oct 2025

https://github.com/jeffgbutler/practical-functional-kotlin

Practical Functional Kotlin Workshop Materials

functional-programming kotlin

Last synced: 06 Oct 2025

https://github.com/jezek/funson

another approach to functional json for fun

experimental functional-programming golang json programming-language

Last synced: 23 Feb 2026

https://github.com/dark-voyage/experiment

🧪 | Just a functional lab experiment with expressions

functional-programming s-expressions

Last synced: 07 Oct 2025

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/camille-hdl/lazy-lists

Lazy list processing toolkit for PHP

functional-programming iteration transducers

Last synced: 27 Oct 2025

https://github.com/mstniy/computed_flutter

Reactive state management for Flutter

dart flutter functional-programming reactive state-management

Last synced: 23 Feb 2026

https://github.com/joggrdocs/funkai

A composable AI microframework built on ai-sdk, curried with funk-tional programming flair.

agents ai ai-sdk functional-programming microframework nodejs prompts typescript vercel-ai-sdk workflows

Last synced: 01 Apr 2026