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/ricardorobledo/programacionfuncional-python

Recopilación de ejercicios de programación funcional en Python

functional-programming pyrsistent python3

Last synced: 11 Jun 2026

https://github.com/f-z/functional_programming

Haskell, Erlang, Reactive functional programming

erlang functional-programming functional-reactive-programming haskell

Last synced: 13 May 2026

https://github.com/dboyliao/learnhaskell

Notes and codes for learning Haskell.

functional-programming

Last synced: 13 May 2026

https://github.com/uriegel/uwebserver

A web server based on F# and .NET Core

fsharp functional-programming http-server

Last synced: 13 May 2026

https://github.com/talesitf/hookinator

Servidor assíncrono de webhooks em OCaml, com foco em programação funcional, modularidade e arquitetura reativa.

async demo functional-programming http-server lwt ocaml sqlite webhook

Last synced: 14 May 2026

https://github.com/lichaojacobs/my_util_lib

工作中总结的公共类库、小工具,用来提高工作效率以及代码整洁度

functional-programming java-utilities java8 utils

Last synced: 14 May 2026

https://github.com/mrgravity817/ruckpal

Mini Paypal clone, written in Rust for practicing domain modeling with clean architecture

clean-architecture domain-driven-design functional-programming hexagonal-architecture rust

Last synced: 12 Jun 2026

https://github.com/yeonsolkim/fp-lean-print

Print layout helpers for generating a Letter-size PDF of Functional Programming in Lean

chrome-printing functional-programming lean lean4 pagedjs pdf print-css typography

Last synced: 16 Jun 2026

https://github.com/saber2pr/fp

:heavy_minus_sign: A library for Javascript in functional programing in async | sync | lazy.

async functional-programming lazy typescript

Last synced: 17 Jun 2026

https://github.com/rockofox/servant-miso-starter

A minimal Nix-first template for a full-stack Haskell app

functional-programming haskell miso servant starter template

Last synced: 17 Jun 2026

https://github.com/guiromao/some-functional-programming-java

Some functional programming (main Java interfaces for such)

functional-programming java

Last synced: 18 Jun 2026

https://github.com/tolikpylypchuk/hs-bowling

A library which calculates a bowling score, written in Haskell

functional-programming haskell haskell-stack

Last synced: 09 Apr 2025

https://github.com/kanitsharma/io

Lightweight monadic abstraction to "purely" handle side effects in javascript.

asynchronous-programming functional-programming javascript side-effects

Last synced: 01 Apr 2025

https://github.com/kanitsharma/monad-fantasy

A collection of monads implemented in javascript

functional-programming javascript monads

Last synced: 01 Apr 2025

https://github.com/stephenjfox/calculator-http4k

Practicing in public 1. Kotlin 2. Web Server development 3. TDD 4. Functional-Programming Systems Design

functional-programming http4k kotlin tdd web

Last synced: 24 Jan 2026

https://github.com/int64ago/mutate

Modify object and return immutable object.

functional-programming immutable

Last synced: 07 Jan 2026

https://github.com/Imtjl/fp-red-black-tree-dict

TreeDict - Implementation of Dict based on Red Black Tree in Elixir

data-structures elixir functional-programming red-black-tree

Last synced: 01 Apr 2025

https://github.com/amaziahub/tunic

A minimal setup for a Kotlin application using Gradle

functional-programming java jvm kotlin

Last synced: 13 Apr 2026

https://github.com/theoliverlear/java-jump-start

Java Jump Start is a comprehensive guide designed to help you quickly learn the amazing abilities of Java. This guide will provide you will all the essentials in syntax as well as the unique features of Java.

data-structures education functional-programming guide java learning oop quickstart

Last synced: 24 Jun 2025

https://github.com/iamnilotpal/maybe

Go Optional, Nullable Types and Functional Utilities.

functional-programming golang null nullable option

Last synced: 13 Apr 2025

https://github.com/barcek/phns

add phnctionality | modules for functional programming | Python + Mypy

backend composition currying functional-programming functors package python

Last synced: 05 Apr 2025

https://github.com/hoetty/marble

A simple and compact functional programming language

functional functional-programming programming-language

Last synced: 02 Aug 2025

https://github.com/nylle/javaseq

A lazy sequence for Java (no Stream involved)

functional-programming lazy-evaluation persistent-data-structure

Last synced: 11 Jan 2026

https://github.com/victorlga/functional-etl

A functional ETL pipeline in OCaml that processes order data from CSV files hosted online using map, reduce, and filter, producing aggregated results and storing into a database.

etl functional-programming ocaml pipeline

Last synced: 28 Mar 2025

https://github.com/peter-roh/ocaml

taking 'programming languages' course

functional-programming interpreter ocaml programming-languages

Last synced: 14 Mar 2025

https://github.com/tr-yasuda/kitsunejs

Type-safe Result and Option utilities for TypeScript, inspired by Rust. Safer error handling with a lightweight functional style.

error-handling functional-programming monad option result rust type-safe typescript

Last synced: 25 Jan 2026

https://github.com/vikaspulluri/functional-lite-javascript

Fundamentals of functional programming with javaScript

es6 functional-programming javascript

Last synced: 21 Mar 2025

https://github.com/petitgrizzlies/99problems

Solutions for 99 Problems with Erlang

elixir-lang erlang functional-programming

Last synced: 12 Jul 2025

https://github.com/programadorthi/the-joy-of-kotlin

The Joy of Kotlin book exercises

functional-programming kotlin

Last synced: 03 Aug 2025

https://github.com/ronanyeah/spotify-fresh

play with your spotify playlists using a Node.js cli

functional-programming futures node-cli spotify spotify-playlist

Last synced: 17 May 2026

https://github.com/ejgallego/imp-lab

Lean playground for programming language modeling tooling.

dap formal-methods formal-verification functional-programming lean lean4 lsp tooling ux-research

Last synced: 09 Mar 2026

https://github.com/franciscomsm/fp-in-js

Functional programming in JS - talk assets

es6 functional-programming javascript

Last synced: 03 Apr 2025

https://github.com/gabrielczar/functional

Exercises using functional language

exercises functional-programming haskell python

Last synced: 17 May 2026

https://github.com/brettm12345/spatulafoods-product-tabs

A dire flow component for displaying product nutritional info, ingredients and cooking instructions on Spatula Foods

direflow functional-programming tailwindcss

Last synced: 09 Apr 2026

https://github.com/matthewstyler/chain_lua

A small simple functional programming library for Lua

functional-programming functional-programming-in-lua lua lua-library lua-script

Last synced: 03 Aug 2025

https://github.com/mrtkp9993/funcproggo

Functional Programming in Go.

functional-programming golang

Last synced: 15 May 2026

https://github.com/maxbarsukov-itmo/functional-programming-3

🧪λ Функциональное программирование: Лабораторная работа №3

command-line computational-math elixir functional-programming itmo laboratory-work maxbarsukov

Last synced: 03 Aug 2025

https://github.com/okyungjin/fx-playground

Playground for FxJS, FxDOM

functional-programming fxdom fxjs javascript

Last synced: 17 May 2026

https://github.com/mattpolzin/mayberequired

This library introduces the Required and MaybeRequired types as companions to the built-in Optional type

functional-programming swift swift-framework

Last synced: 29 Sep 2025

https://github.com/muhammadmoeezkhan/erlang-parallel-algorithm-performance

Erlang Powered Analysis of Sorting Algorithms Using Parallel Processing And Performance Tracking!

erlang functional-programming parrallel-computing sorting-algorithms-implemented

Last synced: 01 Mar 2026

https://github.com/eloyhere/semantic-java

Semantic-Java is a modern, maven Java stream processing framework with zero dependencies. It elegantly blends the fluency of Java Streams, the laziness of JavaScript generators, and intelligent index-based control inspired by database indexing — perfect for time-series, event streams, and high-performance data pipelines as a maven pendency.

data functional functional-programming java pipeline stream

Last synced: 07 Apr 2026

https://github.com/stevenchen3/ragdoll

Learning Typelevel's Cats library

functional-programming scala typelevel

Last synced: 12 Jan 2026

https://github.com/catseye/deturgenchry

MIRROR of https://codeberg.org/catseye/Deturgenchry : An OO language where `self` is a continuation (sort of)

esolang experimental-language functional-programming object-oriented unfinished unimplemented

Last synced: 05 Mar 2025

https://github.com/snowdutra/python_funcional

Aqui você vai encontrar todos os meus projetos em programação funcional em Python em andamento e concluídos. 😊

functional-programming jupyter python

Last synced: 04 Aug 2025

https://github.com/aloussase/jwt-auth

Sample project showing how to implement authentication with JSON Web Tokens

authentication fp-ts functional-programming jwt

Last synced: 13 Apr 2025

https://github.com/mpellouin/wolfram

Epitech second year project part of the functional programming module. Wolfram is an implementation of elementary cellular automaton written in Haskell

2nd-year epitech functional functional-programming haskell imagecompressor wolfram

Last synced: 17 Mar 2025

https://github.com/kamalfarahani/katharos

A library providing useful types and functions for functional programming in Python

functional-programming monads python

Last synced: 02 Feb 2026

https://github.com/youz/honestb

The Honest B programming language

armoredcore6 esolang functional-programming lazy-k ruby

Last synced: 02 Feb 2026

https://github.com/youz/lazyk-collection

Writing Lazy K interpreters in various languages

esolang functional-programming lazy-k

Last synced: 02 Feb 2026

https://github.com/endou-mame/php-monad

📦 Implemented the concept of monads in functional programming in PHP.

functional-programming option-type php result-type

Last synced: 07 Mar 2026

https://github.com/robertdp/engineering-test-api

Minimalistic API made for an engineering test

functional-programming purescript

Last synced: 25 Jan 2026

https://github.com/tomiok/rosetta

Library with many utility methods.

algortithms datetime functional-programming java-8 library strings

Last synced: 07 Aug 2025

https://github.com/max-sir/kotlintraining_koans

Solution for all tasks from Kotlin Koans https://play.kotlinlang.org/koans/overview

algorithms datastructures functional-programming koans kotlin learning-kotlin-for-android oop-in-kotlin solutions-for-kotlin-koans tasks

Last synced: 15 Jan 2026

https://github.com/fabriziomettini/dsa-ii

Resources about my DS&A II course (FCEIA - UNR)

algorithms college datastructures functional-programming

Last synced: 17 Mar 2025

https://github.com/bmmunga/BrainCaml

An OCaml-based interpreter for the Brainf*ck esoteric programming language.

brainfuck functional-programming ocaml ocaml-program

Last synced: 02 Oct 2025

https://github.com/chrismichaelps/computer-science-problem-solving

Learning haskell Language solving computer science programming problem. This implies having a better knowledge about how language works and how to understand better how functional languages work.

algorithm computer-science functional-programming haskell math solving-algorithm

Last synced: 11 Jun 2026

https://github.com/kattulib/katip

[IN DEVELOPMENT] Katip is a minimal functional logger library

functional-programming logger scala scala3

Last synced: 08 Aug 2025

https://github.com/TheAlexLichter/fp-in-php

A talk about functional programming in PHP

functional functional-programming php

Last synced: 08 Aug 2025

https://github.com/heitorgandolfi/elm-todo-list

Simple ToDo list application built in Elm for study purposes

elm functional-programming

Last synced: 02 Jan 2026

https://github.com/github-dev12345/dom-manipulation-crud-operation-app

Finally i make a CRUD-Operation APP,😉😎 with the help of JavaScript, To learn the CRUD System ( Create, Read, Update, Delete), )

bootstrap5 component crud-application es6 functional-programming javascript operation

Last synced: 09 Apr 2026

https://github.com/calvinlfer/dag-validator

A simple Directed Acyclic Graph validator that detects if cycles are present

dag fp functional-programming scala

Last synced: 01 Jul 2025

https://github.com/liitfr/sort-my-items

Sort an array's (or anything else's) items by defining a hierarchical set of criterias, à la FP

array criteria functional-programming hierarchical items ordering sorting

Last synced: 25 Jul 2025

https://github.com/catseye/sally

MIRROR of https://codeberg.org/catseye/Sally : A cute but naïve functional language - "upside-down Forth cake".

esolang experimental-language functional-programming minimalistic stack-based

Last synced: 05 Mar 2025

https://github.com/tsuberim/fun

A purely fun-ctional language with amazing performance

functional-programming haskell hindley-milner python

Last synced: 14 May 2026

https://github.com/nicklatch/ocaml_learn_exercises

My solutions to the ocaml.org exercises

functional-programming ocaml practice

Last synced: 03 Jan 2026

https://github.com/gokselgoktas/hotline

A simple and straightforward utility library for Lua

functional-programming lua luarocks utility-library

Last synced: 20 Jul 2025

https://github.com/delonnewman/monad-maybe

A Ruby implementation of Haskell's Maybe Monad

functional-programming haskell monad ruby

Last synced: 03 Oct 2025

https://github.com/milandjurdjevic/either

Functional-style error handling in C# using a simple Either implementation.

csharp error-handling functional-programming monads

Last synced: 24 Jun 2025

https://github.com/aygp-dr/jwt-parsing-examples

A cross-language exploration of JWT header parsing techniques across multiple programming paradigms

clojure examples functional-programming hy javascript jwt lisp parsing python racket rust scheme shell tutorial typescript

Last synced: 30 Apr 2025

https://github.com/oliver021/helppad-net

Versatile .NET Toolkit: A Comprehensive Set of Miscellaneous Helpers, Classes, and Utilities

assert async checks cryptographic-algorithms data date dotnet fluent functional functional-programming hash helpers parallel pipe pipeline pointers review supports tasks

Last synced: 15 Jun 2026

https://github.com/ythecombinator/jaspion

Practical java 8 utility belt for you projects.

functional-programming java

Last synced: 30 Oct 2025

https://github.com/separatrixxx/fp_labs_6_sem

👓 Laboratory work for the 6th semester of MAI on functional programming

functional-programming

Last synced: 10 Aug 2025

https://github.com/sandromaglione/nextjs_pokemon_memory_card_game

Memory Card Game using nextjs, typescript, jest, react-testing library, and fetching Pokemon from pokeAPI

card-game fp-ts functional-programming functional-typescript jest memory memory-card-game nextjs pokeapi pokemon pokemon-game react-testing-library typescript

Last synced: 02 May 2026

https://github.com/cuchi/turmite

Chaotic two-dimensional Turing machine

elixir functional-programming turing-machine

Last synced: 23 Mar 2025

https://github.com/exbotanical/goldmund-sh-ii

Personal website :: Vue 3 | Go | Postgres | GraphQL

blog composition-api functional-programming golang graphql pug scss serverless vite vue vue3

Last synced: 09 Apr 2026

https://github.com/thoughtfool/pocket-squatch

A simple game concept to practice design and logic principles within the 2D world. This was a project that was developed in close partnership with my school-age daughter. She is the inspirational project-manager and creative-director that helped guide the development process.

functional-programming handlebarsjs javascript-game keyframes-animation mongoosejs

Last synced: 04 Jan 2026