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/drmarjanovic/msc

An example of using telemetry in a system built on microservices-based architecture.

functional-programming microservices scala telemetry zio-telemetry

Last synced: 01 Apr 2025

https://github.com/maksim-ilin-f25/f

The F language can be considered as a reduced version of the Lisp language with some simplifications and modifications. It takes the basic syntax and semantics from Lisp.

cli functional-programming gradle interpreter kotlin lisp programming-language

Last synced: 19 Apr 2026

https://github.com/dzangfan/evason

A lighweight programming language mixing JSON and functional features together

functional-programming json programming-language

Last synced: 19 Apr 2026

https://github.com/johnpaulada/maybe

A simple, lightweight, Maybe implementation in JavaScript.

functional-programming maybe monad

Last synced: 20 Apr 2026

https://github.com/asarkar/udemy-complete-haskell

https://www.udemy.com/course/the-complete-haskell-course-from-zero-to-expert

functional-programming haskell udemy

Last synced: 15 Jul 2025

https://github.com/mearns/fp-try

A Try encapsulates the result of an operation that may have failed.

either error error-handling errors failure functional functional-programming javascript optional scala try try-catch typescript

Last synced: 20 Apr 2026

https://github.com/bee-produced/bee-built

A collection of modular libraries tailor-made for Kotlin enthusiasts.

dgs functional-programming graphql hibernate immutable jpa kotlin monolith spring-boot

Last synced: 21 Apr 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/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/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/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/mobiwn/programming-language-design

💻 Dive into a curated collection of programming language comparisons, exercises, and detailed slides in this repository for Urmia University students.

functional-programming haskell object-oriented-programming oop procedural-programming programming-language-concepts programming-language-theory programming-languages racket racket-lang racket-language urmia-university

Last synced: 05 Feb 2026

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/epicallan/p2h-ui

Front end Test for a pdf to html service on steroids :ok_woman: :ok_woman: in purescript-pux

frontend functional-programming pdf purescript pux

Last synced: 16 Mar 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/int64ago/mutate

Modify object and return immutable object.

functional-programming immutable

Last synced: 07 Jan 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/palutz/programmingreactivesystem_course

Code from the Programming Reactive System in Scala course from Edx (EPFL)

actor-model akka fp functional-programming reactive-programming reactive-streams scala

Last synced: 29 May 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/ricardorobledo/programacionfuncional-python

Recopilación de ejercicios de programación funcional en Python

functional-programming pyrsistent python3

Last synced: 11 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/jtberglund/snowballr

A simple library for composing error messages

composition functional-programming validation

Last synced: 28 Feb 2025

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/olhkyle/fxjs-verstenden

Learn fxjs based on functional-programming concept

functional-programming fxjs javascript

Last synced: 16 Mar 2025

https://github.com/dboyliao/learnhaskell

Notes and codes for learning Haskell.

functional-programming

Last synced: 13 May 2026

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/shybyte/rusty-13-ways-of-looking-at-a-turtle

Thirteen different ways of implementing a LOGO-style turtle in Rust

functional-programming programming-paradigms rust

Last synced: 30 Jun 2026

https://github.com/nerac/keyu

Key utilities that will simplify your work with Javascript

concurrency conversion fp functional-programming javascript logic utilities utils

Last synced: 18 Jan 2026

https://github.com/jyothsnasrinivas/eta-android-interop

Utilities for interoperating with Android

android eta functional-programming haskell

Last synced: 28 Apr 2026

https://github.com/dictybase-docker/crusher

CLI tool for building OCI images, creating Crush sandbox containers, and packing Docker Sandbox agent kits — powered by fp-go functional programming combinators.

cli container crush docker docker-sandbox fp-go functional-programming go oci sandbox

Last synced: 23 Jun 2026

https://github.com/scmorrison/perl6-fp-notes

Notes on functional programing techniques with Perl 6

functional-programming perl6

Last synced: 03 Jul 2025

https://github.com/xodio/eslint-plugin-xod-fp

Limit the chaos while doing FP in JS

eslint eslint-rules functional-programming ramda

Last synced: 28 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/clifftech123/ts_fun_practice

Collection of small and enjoyable functional programming exercises in TypeScrip

functional-programming javascript typescript

Last synced: 29 Apr 2026

https://github.com/shubhangdutta96/neetcode_150

This repository contains a collection of Data Structures and Algorithms implemented in Scala, utilizing the principles of functional programming. The aim is to provide efficient and clean solutions for common computational problems. In addition, this repository includes solutions to the NeetCode 150 DSA problems series.

data-structures functional-programming scala

Last synced: 24 Mar 2025

https://github.com/palutz/calculateseries

A simple F# solution, with tests and console app to calculate a series of numbers

fsharp functional-programming math

Last synced: 29 May 2026

https://github.com/thautwarm/xylearn

the way to fewer tasks and more convincing products.

concurrency csharp functional-programming machine-learning toolbox

Last synced: 29 Apr 2026

https://github.com/matt-mcmahon/functional

A learning-friendly functional library with a focus on clear source-code and readable function signatures.

experimental functional-programming learn-to-code

Last synced: 11 Jun 2025

https://github.com/ahlusar1989/spark2sfoverflow

StackOverFlow K-Means Analysis

functional-programming k-means scala spark

Last synced: 29 Apr 2026

https://github.com/woutervanbakel/try

Try class for C++

cpp cpp11 functional-programming try

Last synced: 08 Jun 2026

https://github.com/meragix/calx

⏱️ A lightweight, immutable, and fully tree-shakeable date manipulation library for Dart & Flutter. Functional-first core with zero-allocation opt-in extensions.

dart date-fns date-manipulation flutter functional-programming immutable performance tree-shaking

Last synced: 12 Jun 2026

https://github.com/sergeysolovev/cs-operations

LINQ/monadic extensions for async operations in .net

csharp functional-programming linq monads

Last synced: 10 Jun 2025

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

Vertx-MongoDB-Effect enables interaction with MongoDB in a purely functional and reactive style, seamlessly integrating with Vertx-effect. This library requires familiarity with Vertx-effect, as both frameworks share a foundational reliance on immutability and persistent data structures provided by json-values.

functional-programming javascript json-values mongodb persistent-data-structure reactive-programming vertx vertx-effect

Last synced: 30 Apr 2026

https://github.com/qard/potentially

A maybe/option type implementation with separate derived types to reduce branching

fp functional-programming maybe monad nodejs option

Last synced: 30 Apr 2026

https://github.com/kanitsharma/elm-giphy

Single Page Application with Elm Architecture

elm elm-architecture functional-programming single-page-app

Last synced: 17 Jun 2025

https://github.com/asarkar/thinking-functionally-with-haskell

https://www.amazon.com/Thinking-Functionally-Haskell-Richard-Bird/dp/1107452643

functional-programming haskell

Last synced: 08 Dec 2025

https://github.com/ghivert/papers

All articles published both on Medium or on my blog!

articles functional-programming programming

Last synced: 20 Jan 2026

https://github.com/chocolacula/donotcopyanalyser

Roslyn analyzer for prevention of copying certain data

csharp functional-programming roslyn-analyzer

Last synced: 08 Jun 2026

https://github.com/al-ghaly/ruleengineusingscala

A Rule-Based discount calculating engine for a retail store. The engine reads transaction data, applies various discount rules based on the product, date, and other criteria, and writes the results back to a database.

database etl etl-automation functional-programming jdbc oracle programming scala

Last synced: 01 May 2026

https://github.com/leovido/fp-casestudy-swift

Swift version of the original 13 ways of looking at a turtle in F# by Scott Wlaschin

dependency-injection functional functional-programming functional-programming-examples ios-swift refactoring swift swift5

Last synced: 08 Jun 2026

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

FAC Workshop - March 2017

functional-programming javascript ramda

Last synced: 11 Jun 2025

https://github.com/kiquetal/fsharp-workout

Hands-on F# training — 6 hyperfocus sessions covering type-driven design, pipelines, pattern matching, domain modeling, async, and integration

domain-modeling dotnet fsharp functional-programming hyperfocus-training type-driven-design

Last synced: 13 Jun 2026

https://github.com/ardywsptr/phpdasar

Materi PHP dasar playlist youtube channel Web Programming Unpas

arrray crud database functional-programming mysql php wpu-channel

Last synced: 01 May 2026

https://github.com/quacksouls/jaf

Adventures in functional JavaScript

functional-programming javascript

Last synced: 01 May 2026

https://github.com/lechindianer/fp-talk

Intro talk on functional programming

functional-programming javascript lisp talk typescript

Last synced: 01 May 2026

https://github.com/riiswa/scala2haskell

A detailed comparison between the programming languages language and Haskell by presenting equivalent code.

functional-programming haskell scala

Last synced: 01 May 2026

https://github.com/barcek/aqfr

run deeper | multipath piping | command-line tool | Elixir + Mix, w/ POSIX shell

beam command-line-tool dx elixir functional-programming pipes shell

Last synced: 02 May 2026

https://github.com/JunggiKim/java-refined

Refinement and functional value types for Java 8+

functional-programming java java8 maven-central non-empty refinement-types validation

Last synced: 02 May 2026

https://github.com/gregros/dropin-geometry

Vector and complex math for graphics. Unfinished.

functional-programming graphics incomplete javascript math obsolete package typescript

Last synced: 03 May 2026

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/reshiadavan/catena

simple, lightweight, actor-based distributed blockchain

actor-model akka blockchain docker docker-compose functional-programming scala

Last synced: 03 May 2026

https://github.com/youstinus/toolsgo

Tools with utilities, transformers, generators and other useful functions.

functional-programming functions go golang tools

Last synced: 24 Mar 2025

https://github.com/will-1-am/stanford

Stanford cs193p Spring 2020 course led by Paul Hegarty illustrating MVVM architecture, generics, functional programming using SwiftUI and Xcode. Homework assignments are included as separate git branches.

cs193p-spring-2020 functional-programming generics hacktoberfest mvvm-architecture swiftui

Last synced: 04 May 2026

https://github.com/lpld/real-world-haskell

Assignments from the book "Real World Haskell" (http://book.realworldhaskell.org/)

functional-programming haskell

Last synced: 09 Jun 2026

https://github.com/aayushyadavz/keeper-app-react

Created a Keeper App using React in which we can add our notes.

components-react filtering functional-programming mapping material-ui reactjs

Last synced: 05 May 2026

https://github.com/plave0/pp

Programming paradigms course material.

functional-programming haskell prolog python scala spark

Last synced: 05 May 2026

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/akimichi/kansuu.js

Yet another functional programming library for node.js

functional-programming javascript nodejs

Last synced: 01 May 2026

https://github.com/mihailtd/functional-programming-comparison-go-js-python

Code examples for the Functional Programming Face-Off video on the Let's Talk Dev YouTube channel, comparing functional programming in Python, JavaScript, and Go.

functional-programming golang javascript python

Last synced: 05 May 2026

https://github.com/turbaszek/ct4cs

Challenges from Category Theory for Programmers

category-theory functional-programming

Last synced: 16 Mar 2025

https://github.com/sderosiaux/zio-story

🎯 Interactive, gamified learning platform for mastering ZIO - Scala's powerful library for async and concurrent programming

concurrent-programming education functional-programming gamification interactive-learning learning-platform nextjs programming scala tutorial typescript zio

Last synced: 07 May 2026

https://github.com/ghillairet/frdomain-kt

Kotlin version of code from the book Functional and Reactive Domain Modeling

functional-programming kotlin reactive

Last synced: 23 Nov 2025

https://github.com/pixcai/hscheme

Write Yourself a Scheme in 48 Hours

functional-programming haskell scheme

Last synced: 20 Oct 2025

https://github.com/sidmishraw/gunc

Golang functional programming library

functional-programming go higher-order-functions

Last synced: 19 Oct 2025