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/manoelcampos/fp-projeto-1-poligonos-flatmap

Um projeto base em OpenJFX para desenhar polígonos na tela e permitir a implementação de algumas funções para descobrir o tipo de cada polígono e calcular seu perímetro usando Stream.map() e flatMap()

fp functional-programming java javafx jdk17 lambda openjfx stream

Last synced: 16 May 2025

https://github.com/rakibhhridoy/predictingsequence-timeseriesanalysis

Time series data easy handling purposes in TensorFlow and python functional programming. Time Series data is handled and pre-processed by different steps,like making window of the data,splitting data for model purpose is also different than other processing methods. All has combined for easy access.

forecasting functional-programming keras lstm lstm-neural-networks moving-average numpy python tensorflow time-series windowed

Last synced: 02 Apr 2026

https://github.com/iosialectus/haskellcipherplay

Implementations of RSA, Blum Blum Shub PRNG, affine and polyalphabetic ciphers, and supporting number theory in Haskell.

cryptography functional-programming haskell number-theory prng rsa

Last synced: 02 Apr 2026

https://github.com/marcelo-gomj/windows-10-calculator

It's the Windows calculator made with pure HTML, CSS and JavaScript. I tried to apply some functional programming concepts.

browser calculator css functional-programming html javascript vanilla-javascript webapp

Last synced: 17 Apr 2026

https://github.com/rvarago/cpp_optional_extras

*EXPERIMENTAL* A handful of C++ utilities I wish std::optional<T> had

cpp cpp20-library functional-programming optional

Last synced: 09 Oct 2025

https://github.com/eckelon/sanctuarycustomtypesexample

Easy example of how to define custom types with Sanctuary and using them in safe functions

functional-js functional-programming javascript sanctuary types

Last synced: 16 Mar 2025

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/milaziabchenko/minimo-website

Stylish photodiary | lifestyle | travel multi-page website created with modern features of HTML5, CSS3, and JavaScript, combining functional programming and OOP approaches

css-animations css-flexbox css-grid functional-programming html-css-javascript localstorage-api multi-page-application oop responsive ui-design

Last synced: 03 Mar 2026

https://github.com/marinaa13/pairing-heaps-racket

Functional implementation of pairing heaps and their applications in Racket, including sorting, movie ranking, and stream-based median computation, using recursion, higher-order functions, and pure functional design

functional-programming heap higher-order-functions pairing-heap racket recursion

Last synced: 22 Jun 2026

https://github.com/lucasamiranda/atividade-2

imersao-tecnicasdeinvasao-python(Bruno-Fraga)

functional-programming python3

Last synced: 08 Jun 2026

https://github.com/akotronis/dit280

Advanced Languages and Programming Techniques

functional-programming haskell

Last synced: 09 Apr 2025

https://github.com/kevindasilvas/comments-kanban

Haskell microservice to add comments to a task in mini kanban project

conduit docker docker-compose functional-programming haskell mongo mongodb rabbitmq redis spock spock-framework uuid

Last synced: 11 Apr 2026

https://github.com/lordgoatius/comonad_rust

Attempt at encoding comonadic effects in Rust (inspired by @SheafificationOfG )

functional-programming rust

Last synced: 27 Mar 2025

https://github.com/guibrandt/higher-kt

Some experiments with annotation processors, code generation, higher kinded types (sort of) and typeclasses (sort of) in Kotlin

annotation-processor category-theory code-generation functional-programming higher-kinded-types kotlin typeclasses

Last synced: 28 Feb 2025

https://github.com/v-spassky/drainage

🚿 Implementation of pipe expressions for Python.

functional-programming pipe python

Last synced: 04 Jul 2025

https://github.com/dhershman1/mondrian-elm

Elm rebuild of my mondrian idea

elm fun functional-programming mondrian

Last synced: 04 Jun 2026

https://github.com/filiprd/monet

Online paintings retailer platform implemented in functional Scala 3

cats cats-effect functional-programming http4s scala typelevel

Last synced: 29 May 2026

https://github.com/slava0135/stg-example

Example Haskell program translated to STG and compiled to C

compiler functional-programming haskell lazy-evaluation stg

Last synced: 20 Apr 2026

https://github.com/dragos-tudor/frontend-rendering

Rewritten React core library [functional principles].

functional functional-components functional-programming react rendering-engine

Last synced: 10 May 2026

https://github.com/ethowitz/sruby

An increasingly less miniature implementation of Ruby in Scala

functional-programming programming-languages ruby scala

Last synced: 21 Apr 2026

https://github.com/martianoff/gala-team

Multi-agent Claude CLI orchestrator -- a Team Lead delegates to Engineers and QAs, reviews their work, and hands you a PR for sign-off. Written in GALA with gala_tui.

agent-orchestration ai-agents anthropic claude claude-ai claude-code cli developer-tools functional-programming gala multi-agent orchestrator tui

Last synced: 05 Jun 2026

https://github.com/divyanshu-rawat/a-react-game

A kuch bhi (Game) built using react.js

functional-programming reactjs

Last synced: 09 Apr 2025

https://github.com/dhruvsrikanth/climbingeverestgame

Climb the treacherous Mount Everest in this exciting text-based adventure game! A game through which you can experience a pure (Haskell) climb!

c climbing everest functional-programming game-development games gaming haskell monad text-based-adventure text-based-game trekking

Last synced: 19 Apr 2026

https://github.com/oelin/hyper-reducer

A generalization of reduce() to arbitrary arity.

functional-programming reduce reduction

Last synced: 24 Apr 2026

https://github.com/zhangchiqing/nnmap

Map a function over nullable value

curry functional-programming map nullable

Last synced: 13 Jun 2026

https://github.com/dotpep/restaurant-api

Restaurant API using DRF, with Authentication, Menu, Cart and Order management systems and etc.

api django django-rest-framework drf functional-programming python restaurant

Last synced: 11 May 2026

https://github.com/d-plaindoux/promiseme.js

Monadic promise built on top of Promise/A+ specification

async functional-programming monad

Last synced: 02 Apr 2025

https://github.com/tymorrow/elm-dist-demo

Compute Levenshtein distance using dynamic programming in Elm

dynamic-programming elm functional-programming levenshtein-distance

Last synced: 06 Jun 2026

https://github.com/rackspace/maybe-result

Safe handling of null and undefined in Typescript and Javascript

fp functional-programming maybe null optional typescript typescript-library undefined

Last synced: 25 Apr 2026

https://github.com/kamranikramofficial/portfolio

A clean and responsive personal portfolio website built using HTML, CSS, and JavaScript. It showcases my skills, projects, education, and contact information.

cascading-style-sheets css css-flexbox css3 functional-programming fundamentals htmk5 html html-css-javascript hypertext-markup-language intoduction javascript js js5 js6 project

Last synced: 25 Apr 2026

https://github.com/mateogiuffra/estrd2024s1

trabajos prácticos realizados en la materia Estructura de Datos de la Universidad Nacional de Quilmes (UNQ)

c cpp data data-structures-and-algorithms eficiency functional-programming haskell unq

Last synced: 12 May 2026

https://github.com/luizcalaca/ts-node-joi-api

Typescript API with Joi validations, Express.js and MySQL. The project has the main branch to show the solutions with functions and the change-oop-api-ts to show with Object oriented programming.

api-rest functional-programming joi-validation mysql2 nodejs oop oriented-object-programming programming typescript

Last synced: 13 Apr 2026

https://github.com/zlovtnik/frontend

A TypeScript/Bun/React frontend application for the Actix Web REST API backend with JWT authentication, multi-tenant support, and comprehensive functional programming patterns.

actix-web ant-design bun fp-ts functional-programming multi-tenancy pattern-matching railway-oriented-programming react rest-api-jwt-authentication result-types tailwindcss typescript validation zod

Last synced: 13 Apr 2026

https://github.com/victorlga/payment-webhook-handler

A Clojure webhook handler for processing and validating payment events with SQLite persistence and HTTP callbacks for confirmation/cancellation.

backend clojure functional-programming payment webhook

Last synced: 23 Jun 2026

https://github.com/martianoff/gala-acp

Transport-neutral Agent Communication Protocol for GALA: content-hash message identity, idempotent dedup, a delivery/liveness FSM, and a generic agent-run contract — with a Claude backend.

acp agent-communication-protocol agent-orchestration claude functional-programming gala immutable llm-agents

Last synced: 07 Jun 2026

https://github.com/rcardin/functional-portfolio

A toy implementation of a portfolio application that uses functional domain modeling and functional programming

cats domain-driven-design functional-programming scala

Last synced: 07 Jun 2026

https://github.com/gregros/naff

Client-side DOM swiss army knife and switchblade.

dom functional-programming incomplete javascript library package typescript

Last synced: 27 Apr 2026

https://github.com/yuriykravets/rockpaperscissors

Simple app from Kotlin - Head First book

functional-programming functions

Last synced: 23 Jun 2026

https://github.com/sftsrv/parz

A simple parser combinator library

functional-programming gleam gleam-lang parser parser-combinators

Last synced: 05 Feb 2026

https://github.com/zyad-eltayabi/atm-system

💵 The system allows users to quickly withdraw predefined or custom amounts, deposit funds, check their balance, and securely log out.

cpp filesystem functional-programming

Last synced: 11 Jun 2026

https://github.com/olivier-boudeville/ceylan-curry

Curry: a Haskell Cookbook

functional-programming haskell

Last synced: 09 Apr 2025

https://github.com/p7g/some-functional-functions

some haskell-wannabe functions in JS (typescript)

functional-programming javascript typescript

Last synced: 27 Apr 2026

https://github.com/faylina/spellbound-treasures

First project utilizing JavaScript to create a shopping cart

functional-programming html-css javascript localstorage responsive shop

Last synced: 25 Oct 2025

https://github.com/nkcoder/bondi

Scala scripts with functional programming in Scala 3 (Cats Effect, ZIO, Skunk etc.)

aws-sdk functional-programming postgresql scala3 skunk

Last synced: 01 Mar 2025

https://github.com/sami-ul-haq/xord-myreads

My Reads App For XORD Internship

context-api functional-programming react

Last synced: 14 Jun 2026

https://github.com/nthportal/euler-n-scala

Project Euler Solutions (in Scala)

functional-programming project-euler scala

Last synced: 16 Mar 2025

https://github.com/dashkite/joy

The simplicity of Lodash with the functional flair of Rambda.

browser functional-programming javascript nodejs

Last synced: 13 Apr 2026

https://github.com/gonturri/tp-tadp-hibrido-objetos-funcional

Trabajo práctico de asignatura técnicas avanzadas de programación de UTN donde el objetivo sumergirse en el paradigma hibrido de objetos y funcional

functional-programming monads object-oriented-programming parser-combinators pattern-matching scala

Last synced: 05 Oct 2025

https://github.com/paudirac/fsharp-introduction-slides

Introductory F# presentation for workmates (kind of trying to conquer the world)

f-sharp functional-programming presentation

Last synced: 06 Jul 2025

https://github.com/ronanyeah/ramda-workshop

FAC Workshop - March 2017

functional-programming javascript ramda

Last synced: 11 Jun 2025

https://github.com/theosorus/syntacticanalyzer

Build a simple Syntactic Analyzer in Haskell to discover Functional programming

functional-programming haskell reverse-polish-notation shunting-yard-algorithm syntaxic-analysis

Last synced: 14 Jun 2025

https://github.com/brunomontezano/r-workshop-intermediario

📚 Course material for the R Intermediate workshop. The website and all presentations are in Brazilian Portuguese.

brazilian-portuguese data-wrangling functional-programming intermediate pt-br r r-course tidy-data tidyverse workshop workshop-materials

Last synced: 13 May 2026

https://github.com/isaac-alencar/turing_machine_simulation

Turin Machine simulation to add one bit to a binary number

alan-turing computer-science elixir functional-programming

Last synced: 17 Mar 2025

https://github.com/asterinos1/movie-preference-analyzer

INF424 Project 2025: Movie Preference Analyzer. Big Data analytics tool using Apache Spark, developed in Scala. adhering to functional programming rules.

analytics functional-programming hadoop-hdfs scala spark

Last synced: 03 Jul 2025

https://github.com/firestone82/mazelib-gui

VŠB-TUO - School project in SKJ

functional-programming gui thinker

Last synced: 22 Apr 2025

https://github.com/otbivnoe/haskell-time

Functional programming seems really interesting. Change your imperative mind and take over the world!

functional-programming haskell

Last synced: 06 Oct 2025

https://github.com/kattulib/yay

[IN DEVELOPMENT] Yay is a functional simple http server

functional-programming http-client http-library http-server scala scala3

Last synced: 24 Mar 2025

https://github.com/kathleenwest/advancedconsoleapplicationi

This is a very simple windows console application that I completed for a class assignment. It is shown here to illustrate my coding style, structure, and commenting. This example is considered Level 3 – Advanced. Objectives: Events Functional Programming Custom EventArgs IList<> Interface Indexer Delegates Anonymous Methods Event Handlers

anonymous-functions console-application csharp csharp-code custom-event custom-events delegates event-handler event-handlers event-handling event-management events functional-programming ilist ilist-interface indexer indexing

Last synced: 17 Mar 2025

https://github.com/aravindraj777/streamdream

A dedicated space for mastering Java Stream API with hands-on workouts and exercises. Exploring the art of functional programming through practical examples and challenges.

functional-programming functionalinterfaces java8-stream lambda-functions streamapi

Last synced: 16 Mar 2025

https://github.com/bertrand31/data-structures-javascript

Collection of data structures implemented in a functional fashion in JavaScript

functional-programming javascript nodejs

Last synced: 28 Apr 2026

https://github.com/kiwamizamurai/miso-numeron

A Bulls and Cows number guessing game built with Haskell and Miso framework, compiled to WebAssembly

functional-programming game haskell miso nix wasm webassembly

Last synced: 21 Apr 2026

https://github.com/milaziabchenko/custom-music-player-with-dropdown-select

Custom music player coupled with custom-made dropdown select, built with HTML, CSS, and JavaScript, combining FP and OOP approaches, and using the Web Audio API functionality

audio-player customization events functional-programming html-css-javascript oop ui-design web-audio-api

Last synced: 13 May 2026

https://github.com/phantie/pipe-forward

A tiny functional composition utility for Python. It allows you to create pipelines of functions using the | operator. Similar to |> (pipe forward) operator in F#.

fsh functional-programming pipe-forward python

Last synced: 07 Oct 2025

https://github.com/courses-at-nju-by-hfwei/learning-haskell

Learn Haskell and Generally Functional Programming

functional-programming haskell learning-haskell self-learning sicp

Last synced: 09 Jun 2026

https://github.com/moonfloof/CMP6090

Functional Programming - University Coursework/Homework

coursework fsharp functional-programming university

Last synced: 07 Oct 2025

https://github.com/tsheporamantso/oop-projects

These are practice projects on JavaScript Object Oriented Programming

classes-and-inheritance construtor functional-programming html-css-javascript oop

Last synced: 07 Oct 2025

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/zeucxb/alura-functional-js

Curso de javascript funcional da Alura.

functional-programming javascript

Last synced: 20 Apr 2026

https://github.com/saidali-ibn-zafar/hard-parts-of-functional-js-fundamentals

Explore the increasingly popular paradigm of functional programming in JavaScript! You’ll learn how to wield and manipulate functions to develop more readable, maintainable and manageable codebases. You’ll go under the hood of powerful techniques like: Higher Order Functions, Function Composition, Pure Functions, and Immutability of State.

closure functional-programming functions-javascript higher-order-functions immutability purity

Last synced: 27 Feb 2026

https://github.com/farynaio/object-dot-notation

Simple object to object dot notation converter in Node.js.

bdd chai chaijs ecmascript2016 es6 functional-programming mocha mochajs node nodejs tdd

Last synced: 06 Jan 2026

https://github.com/profjordanov/scheme-prolog

'Logical and Functional Programming' & 'Intelligent Systems' practices of courses in University of economics - Varna

economics functional-programming logic scheme university varna

Last synced: 22 Feb 2026