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/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/saityi/felis

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

category-theory functional-programming standard-ml

Last synced: 06 Feb 2026

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/blakek/compose

🛠 Compose functions and promises

functional-programming functions pipeline promise

Last synced: 12 Nov 2025

https://github.com/felixarpa/LP-Haskell

🎓 Haskell problems of Programming Languages (FIB)

fib functional-programming haskell

Last synced: 14 Mar 2025

https://github.com/gregorykogan/result

result is a C++ library that provides a Result type, which can be used to return and propagate errors. It's inspired by Rust's Result type.

auto-documentation cpp doxygen doxygen-documentation doxygen-theme error-handling functional-programming modern-cpp result-type

Last synced: 15 May 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: 30 Mar 2025

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/elixircl/kombucha

🍹Kombucha: A Programming Language with Probiotics

elixir functional functional-programming kombucha language programming

Last synced: 26 Feb 2025

https://github.com/rzvxa/dwait

Deferred async operation made easy in JavaScript

async async-await await fp functional-programming javascript nodejs promise-chain rust typescript

Last synced: 09 Apr 2026

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/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/janstuemmel/yep

Easy functional programming with Typescript

category-theory fp functional-programming futures javascript promises typescript

Last synced: 29 Jan 2026

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

DOKA Functional Programming Language

compiler functional-programming programming-language

Last synced: 22 Aug 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/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/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/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/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/davidgregory084/robots

A helper library for validating data with Cats

cats functional-programming scala validation

Last synced: 04 Apr 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/phreppo/parallellisp

Lisp, but functional and parallel

functional-programming lisp parallel

Last synced: 04 Oct 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/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/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/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/cristianbonilla/functional-programming

A partir de la versión 8 de java la programación funcional se aplica con un estilo idiomático. Para entender la programación funcional es necesario volver a versiones anteriores.

functional-programming java-8 java-8-lambda oriented-object-programming pluralsight streams-api

Last synced: 12 Aug 2025

https://github.com/jaalonso/cursos_de_pf_con_haskell

Recopilación de cursos de programación funcional con Haskell.

functional-programming haskell haskell-learning

Last synced: 11 Aug 2025

https://github.com/ace411/ext-func

A simple PHP extension with additional userland helper functions.

ext-func functional-programming helper-functions php-cpp php-extension

Last synced: 04 Oct 2025

https://github.com/farbodsalimi/goulash

Goulash offers a variety of useful utility functions for everyday programming tasks by leveraging Go generics and keeping the functional programming paradigm in mind.

functional-programming generics golang

Last synced: 10 Aug 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/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/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/mimshwright/fease

Composable easing functions.

animation composable easing functional-programming lerp

Last synced: 17 Jan 2026

https://github.com/georapbox/js-fp-utils

Javascript utilities for functional programming

compose curry flip functional-programming javascript partial partialright pipe utilities

Last synced: 20 Jan 2026

https://github.com/theow03/hazelc

LLVM Compiler for Hazel; a declarative, Functional Programming Language

compilers functional-programming llvm

Last synced: 08 Apr 2026

https://github.com/pranavgupta1234/rxjava

RX Java is the example of how functional reactive programming can ease out the work and implement the concept of observables and observeres.This uses rxjava 1.x and rxandroid 1.x dependencies

android functional-programming java observables reactive-programming rxandroid rxjava

Last synced: 20 May 2026

https://github.com/schonfinkel/fsharp-nix

An opinionated F# template and development environment that's powered by Nix and just

devops fsharp functional-programming github-actions justfile nix nix-flakes

Last synced: 31 Oct 2025

https://github.com/webcpu/haskellswift

A functional library for Swift programmers

functional-programming haskell swift

Last synced: 15 May 2026

https://github.com/wavelop/js-pipe-functions

Solution for pipe functions in Javascript.

functional-programming javascript pipe

Last synced: 24 Oct 2025

https://github.com/steve245270533/fp

JavaScript函数式编程文档合集

functional-programming javascript typescript

Last synced: 14 May 2026

https://github.com/voltairenoir/chained

A Rust library for lazily chaining functions

chaining functional-programming lazy-evaluation library pipeline rust

Last synced: 13 May 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/tysonmn/tysonmn.github.io

Blog of Tyson Williams about software engineering and functional programming

blog functional-programming software-engineering

Last synced: 06 Apr 2025

https://github.com/benji6/cataclysm

Functional programming utility library written in TypeScript

curried functional functional-programming typescript utilities utility

Last synced: 07 Sep 2025

https://github.com/liteobject/functional.programming.with.csharp

Functional Programming with C#: Unlocking the Power of Functional Paradigm

csharp functional-programming

Last synced: 02 Jan 2026

https://github.com/vitorsalgado/nodejs-fx

Small functional utility library for JavaScript

functional functional-programming javascript nodejs

Last synced: 03 Mar 2025

https://github.com/multimeric/withpartial

A utility for functional piping in Python that allows you to access any function in any scope as a partial.

functional-programming pipe pipes python

Last synced: 02 Apr 2025

https://github.com/roxtra1/tic-tac-toe

Игра "Крестики-нолики"

functional-programming

Last synced: 15 May 2026

https://github.com/tonivade/commitconf-25

código fuente de los ejemplos usados en la charla que presenté en la #commitconf

commitconf dsl functional-programming java

Last synced: 23 May 2026

https://github.com/dburriss/elevatedexamples

I contain examples in C# and F# of functional programming.

csharp fsharp functional-programming language-ext

Last synced: 15 May 2026

https://github.com/sarthakmakhija/fp-in-scala

Repository containing the solutions to the problems from Functional Programming in Scala

functional-programming scala scalatest

Last synced: 24 Jul 2025

https://github.com/rodrigoalvesvieira/if686

Documents, assignments and code from the Computational Languages Paradigms course at CIn/UFPE, in the semester of 2015.1.

cin-ufpe computational-languages-paradigms functional-programming haskell if686 ufpe

Last synced: 03 Aug 2025

https://github.com/snowy1803/suffix-lang

A type-safe functional programming language using Reverse Polish Notation

compiler functional-programming language programming-language suffix-lang

Last synced: 27 Oct 2025

https://github.com/divertimentos/course-elixir-freecodecamp

Elixir + Functional Programming fundamentals course, aimed for beginners. Provided by Octallium (Anil Kulkarni) through freeCodeCamp.org

elixir elixir-lang functional-programming learn-in-public octallium

Last synced: 15 Jul 2025

https://github.com/otobrglez/beyond-ruby

The code from my talk about going beyond Ruby into Scala and beyond.

functional-programming ruby scala

Last synced: 29 Apr 2026

https://github.com/franciscoengenheiro/space-invaders-app

A desktop application to play the classic space invaders arcade game with gameplay modifiers and difficulties

canvas-game college-project desktop-app functional-programming kotlin space-invaders

Last synced: 17 Sep 2025

https://github.com/shamansir/elm-fluxus

In Progress: A try to move http://pawfal.org/fluxus to Elm and WebGL

elm functional-programming generative-art graphics-programming visualisation webgl

Last synced: 03 Feb 2026

https://github.com/spamegg1/spamegg1-lean

Working through Functional Programming in Lean

dependent-types formal-verification functional-programming lean lean4 math proofs

Last synced: 02 Jan 2026

https://github.com/momomo/momomo.com.platform.lambda

Intuitive generics based functional interfaces with support for void, returns, multiple params and exceptions.

closure closures functional functional-programming generic generics intuitive-generics java lambda lambda-body momomo

Last synced: 14 Mar 2025

https://github.com/flintinatux/chipmunk

A messy functional library for Lua

functional-programming gamedev lua

Last synced: 20 Mar 2025

https://github.com/oelin/favl

A purely functional AVL tree implementation in JavaScript.

algorithms avl-tree binary-tree data-structures functional-programming

Last synced: 12 Mar 2025

https://github.com/phenax/redux-utils

Utility functions and patterns to work with redux

functional-programming react reducer redux saga

Last synced: 11 Apr 2026

https://github.com/dinataklit/mars-dashbord-functional-programming-intermediate-javascript-nanodegree-program

The functional JavaScript course project will be to build a dashboard for the past and current **NASA Mars rovers**, information about each mission, and images from their excursions. You will be tasked with using all the ES6 syntax and functional programming concepts from the course to interact with a real NASA API and build the front-end logic to create the dashboard.

functional-programming javascript

Last synced: 13 Jul 2025

https://github.com/rkoeninger/jenga

Basic stack language

concatenative functional-programming repl

Last synced: 29 Oct 2025

https://github.com/devkcud/salvation

💀 A generic Go wrapper for optional values, inspired by Rust's Option and Haskell's Maybe. Brings Possibly[T] to your codebase for safe, expressive nothingness.

functional-programming generics golang maybe monads-but-shhh nullable option zero-values

Last synced: 13 Jul 2025

https://github.com/vijayksingh/angular-recipies-cookbook

👨‍💻📚🐱‍💻🍴 Cook-Book For Angular Developers (Beginners to Advance Patterns)

angular angular2 angular4 angular5 angular6 angular7 functional-programming reactive-programming rxjs

Last synced: 05 Mar 2026

https://github.com/giu7d/doka_lang

Compiler for a functional language create in Java

functional-programming javacc programming-language

Last synced: 04 Apr 2025

https://github.com/palutz/tryskiasharp

Playing with Xamarin Forms, F# and SkiaSharp (2D graphics API powered by the Skia library: https://skia.org)

2d-graphics fsharp functional-programming mobile skiasharp xamarin-forms

Last synced: 26 Jul 2025

https://github.com/lebrancconvas/hackerrank-functional-programming

Programming in Functional Programming by using Hackerrank Problem.

clojure elixir erlang fsharp functional-programming hackerrank haskell lisp ocaml racket scala

Last synced: 07 Apr 2026

https://github.com/barbaracalderon/coffee-machine-project

This is my version of "The Coffee Machine Project" from Dr. Angela Yu's Python Bootcamp (London App Brewery)

coffee-machine functional-programming python

Last synced: 18 May 2026

https://github.com/marcosh/fundic

PHP purely functional dependency injection container

container-interop dependency-injection functional functional-programming php php-library

Last synced: 11 Feb 2026

https://github.com/klausnat/adam_chlipala_certified_programming_with_dependent_types_exercises

COQ. Certified Programming with Dependent Types by Adam Chlipala. Exercises from the book. Solutions.

certified coq coq-formalization dependent functional-programming types

Last synced: 14 Apr 2025

https://github.com/nem035/js-functional-kitchen

Mini functional recipes in JavaScript.

functional-programming javascript

Last synced: 26 Jul 2025

https://github.com/articulate/redux-functor

Functor middleware for redux

functional-programming functor javascript redux

Last synced: 17 May 2026

https://github.com/mrracoon/js-fp-koans

A set of koans for diving into the world of functional programming in Javascript

fantasy-land functional-programming javascript ramda

Last synced: 03 Aug 2025

https://github.com/taharachedi/stone-paper-scissor

🎮 Fun Stone-Paper-Scissors game in C++ 🪨📄✂️ – Challenge the computer, track your wins, and enjoy the game! 🏆

algorithms console-game cpp enums functional-programming problem-solving random-number-generators structures

Last synced: 20 Mar 2025

https://github.com/dandandan/superoptimizer

Simple superoptimizing "compiler"

compiler functional-programming optimization

Last synced: 12 Apr 2025

https://github.com/sagnikc395/parso

parser combinator in python

functional-programming parser-combinator

Last synced: 04 Sep 2025