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/iepathos/premortem

Premortem for your app's config—finds all the ways it would die before it ever runs.

config configuration error-handling functional-programming rust serde settings type-safety validation

Last synced: 13 Jan 2026

https://github.com/itsdanieldk/fio-chat

💜 Scalable and feature-rich chat server and client built with FIO, designed for high-performance asynchronous communication

application chat chat-application chat-system concurrent-systems distributed-systems dotnet fiber fio fsharp functional-programming messaging-app

Last synced: 08 Oct 2025

https://github.com/willguimont/pipeline

Lightweight pipeline library

arrow functional-programming lambda pipeline python

Last synced: 08 Oct 2025

https://github.com/hernancerm/closures

My understanding of closures

closures functional-programming

Last synced: 01 Apr 2025

https://github.com/joaocarvoli/scala-course

A 6-week course from École Polytechnique Fédérale de Lausanne (EPFL) about the fundamentals of scala functional programming language

coursera functional-programming scala

Last synced: 03 Jun 2026

https://github.com/n1nj4t4nuk1/storable-functions.js

λ Storable and executable functions using array based simple syntax and functional programming.

function functional-programming functions json language nodejs storable-functions

Last synced: 04 Apr 2026

https://github.com/sidmishraw/fjava

FJava, Java for functional programming

fjava functional-programming java8

Last synced: 29 May 2026

https://github.com/joao-coimbra/failcraft

Functional error handling for TypeScript — Either-based error handling with full type inference, chainable transforms, and async support

bun either-monad error-handling functional-programming typescript

Last synced: 04 Apr 2026

https://github.com/mehmet-github06/find-country

An application where you can find the country information you want

api async bootstrap functional-programming html-css-javascript try-catch

Last synced: 17 Apr 2026

https://github.com/sopherapps/funml

A collection of utilities to help write python as though it were an ML-kind of functional language like OCaml

functional-programming pattern-matching python

Last synced: 24 Jan 2026

https://github.com/cicovic-andrija/scala-image-editor

Image editing desktop application written in Scala

desktop-app functional-programming image-editor

Last synced: 01 Apr 2025

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/savaged/funinjection

Some fun with function injection in C#

functional-programming reflection

Last synced: 17 Jun 2025

https://github.com/fantiga/github-query-react-ts

This is a demo of implementing GitHub repository search functionality with React and the GitHub REST API.

functional-programming material-ui react react18 typescript webpack webpack5

Last synced: 02 Apr 2026

https://github.com/abengl/ntt-project1

Primer projecto en Java para el Bootcamp Tech Girls de NTT Data Perú. Inicia el desarrollo de una aplicación para el manejo de cuentas bancarias de usuarios.

fun functional-programming mysql oop spring-boot

Last synced: 17 Apr 2026

https://github.com/mystpi/spark

Compile-to-JS language built in Gleam.

functional-programming gleam langdev language

Last synced: 19 Mar 2026

https://github.com/parmentf/penser-ramda

Traduction de la série d'articles "Thinking in Ramda" du blog de Randy Coulman

book functional-programming javascript ramdajs translation

Last synced: 12 Apr 2025

https://github.com/javanile/boor

🐮 Use only if you hate good manners

boorish foreach functional-programming nodejs statements

Last synced: 16 Apr 2026

https://github.com/a248/jdbcaesar

Conquer the verbosity of plain JDBC.

functional-programming java jdbc jdbc-utilities sql sql-builder

Last synced: 13 Oct 2025

https://github.com/delonnewman/atomjs

Clojure Atoms for Javascript. Shared, synchronous, independent state. A fork of https://github.com/cjohansen/js-atom.

atom clojure concurrency concurrent-programming functional functional-programming javascript javascript-library state synchronous

Last synced: 06 Feb 2026

https://github.com/markhaehnel/resolver-pipe

A functional pipe with validators for TypeScript

functional-programming typescript validator

Last synced: 19 Jan 2026

https://github.com/raedaddala/advent-of-code

My solutions for Advent of Code starting from 2015

advent-of-code functional-programming optimization problem-solving scala

Last synced: 20 Apr 2026

https://github.com/aganglada/reswitcher

🍭 Functional switch case for redux reducers

functional-programming javascript reducer redux switch-case

Last synced: 19 Apr 2026

https://github.com/ist-dsi/scala-nova-client

A pure functional Scala client for Openstack Nova implemented using Http4s client.

functional-programming http4s openstack-clients scala

Last synced: 14 Jan 2026

https://github.com/mattiamtzlr/epfl-cs214-course

Course notes for EPFL CS-214: Software Construction

functional-programming scala university-course

Last synced: 24 Mar 2025

https://github.com/essencemike/ramda-ts

使用 typescript 重构 ramda 工具库

functional-programming lerna library r ramda typescript

Last synced: 09 May 2026

https://github.com/hwang-fu/rv32emu

Fully emulating the RISC-V Base Integer Instruction Set (WIP)

byte-code dune emulator functional-programming ocaml risc-v virtual-machine

Last synced: 21 Apr 2026

https://github.com/nkz-soft/nkzsoft.fluentresults.extensions.functional

It is a library that extends the popular FluentResults library and helps you write code in a more functional way.

csharp dotnet fluentresults functional-programming result result-pattern

Last synced: 24 Nov 2025

https://github.com/codecop/fizzbuzz-with-nothing-kata

Exercise to practice working with functions.

exercise functional-programming kata lambda-calculus

Last synced: 24 Jul 2025

https://github.com/rxtoolkit/stt-gcp

👂 RxJS operator for realtime speech-to-text (STT/S2T) using GCP speech-to-text

fp functional-programming observables package reactive-programming rxjs speech-to-text stt transcription

Last synced: 04 Jul 2025

https://github.com/emphori/compose

A featherweight Promise composition and error handling library for JavaScript

functional functional-programming javascript nodejs promise promise-chain typescript

Last synced: 12 Apr 2026

https://github.com/davestewart/collection-fns

A set of flexible, type-safe functions to manipulate arrays of models

collections functional functional-programming models typescript

Last synced: 11 Feb 2026

https://github.com/ayrtonbsouza/elixir-fundamentals-list-length-challenge

This is an application developed as a challenge for Elixir Ignite Bootcamp, proposed by RocketSeat.

elixir functional-programming fundamentals recursive

Last synced: 10 Jul 2025

https://github.com/damiisdandy/snake-game

snake game built with just react hooks

functional-programming game-development react typescript

Last synced: 16 Jan 2026

https://github.com/gabrielseibel1/fungo

FunGo stands for Functional (programming in) Go(lang)

fp function functional-programming go golang

Last synced: 23 Jan 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/jvrieger/245programminglanguages

BMC CMSC245 Principles of Programming Languages Assignments and Labs with Geoffrey Towel

closures-and-scopes dynamic-programming functional-programming golang parallel-programming rust

Last synced: 14 Jan 2026

https://github.com/svozza/functionalish-refactor

A non-trivial asynchronous code example that interacts with multiple AWS services implemented in imperative, promise-based and purely functional style.

functional functional-programming

Last synced: 18 Mar 2025

https://github.com/atomicptr/php-functional

A set of tools to enable a more functional style of programming in PHP, inspired by OCaml

functional-programming php php-library

Last synced: 27 Feb 2026

https://github.com/gustavodiasag/simpler

Interpreter for a functional, expression-based programming language

functional-programming interpreter lambda-calculus ocaml programming-language

Last synced: 10 Oct 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/ruilopesm/block-knight-li1

A recreation of the "Block Dude" old game made in Haskell using Gloss

functional-programming game-development gloss haskell

Last synced: 23 Aug 2025

https://github.com/alizabatool4268/personal-library-manager-cli

__This is a command line based library management system. Built using higher versions of python

functional-programming logicbuilding python

Last synced: 13 Jun 2025

https://github.com/carlosrberto/lazy-list

LazyList implements map, filter and reduce in JavaScript Arrays with lazy evaluation.

array filter functional-programming javascript lazy-evaluation map reduce

Last synced: 23 Feb 2026

https://github.com/coderynx/functional

A simple .NET functional library

csharp functional-programming option result

Last synced: 13 May 2025

https://github.com/1602/pure-ish

Side-effects manager for backend Javascript apps.

functional-programming side-effects state-machine state-management

Last synced: 21 Jul 2025

https://github.com/alejogs4/church-encoding-javascript

Church encoding to represent typical programming structures on Javascript

church-encoding functional-programming javascript lambda-calculus

Last synced: 06 Jun 2026

https://github.com/diegovdc/trd

A function for composing, inspired by Clojure's thread macro.

clojure functional-programming thread-macro

Last synced: 12 May 2026

https://github.com/dsoaress/node-clean-arch-with-fp

POC of Clean Architecture with a functional programming approach

clean-architecture functional-programming nodejs typescript

Last synced: 26 Apr 2026

https://github.com/qilicoh/curve-tool

Curve-Tool 是一个轻量级数据曲线计算工具,使用函数式编程的方式实现自定义公式计算、多曲线叠加计算、分组计算等,一些场景可提高开发效率,简化代码,使开发者专注核心计算而非维护数据关系。

curve functional-programming java tool

Last synced: 04 Apr 2025

https://github.com/steventimes/fpstreams

functional programming library for Python

functional-programming python

Last synced: 08 Feb 2026

https://github.com/atticuskuhn/typescript-lens

lens library in typescript

fp functional-programming haskell lens

Last synced: 27 Apr 2026

https://github.com/asbhogal/time-tracking-dashboard

A time tracking dashboard created as for a Frontend Mentor challenge, coded using vanilla HTML5, CSS3 (SCSS) and JS.

css3 dashboard front-end-development frontend-mentor functional-programming html5 json sass scss vite

Last synced: 18 Apr 2026

https://github.com/mooseman/minifpl

A lexer (and soon a parser and interpreter) for a small functional programming language. Public domain.

functional-programming public-domain unlicense

Last synced: 16 Mar 2025

https://github.com/yurkimus/types

JavaScript-oriented type utilities

deno functional-programming javascript node utilities

Last synced: 08 Feb 2026

https://github.com/gvoz-dev/fprog

Functional programming

clojure functional-programming racket scala

Last synced: 04 Mar 2026

https://github.com/pzuehlke/hutton

Contains solutions to all of the exercises in and some scripts related to the book: Hutton, G. — Programming in Haskell (2nd ed.)

exercises-solutions functional-programming graham-hutton haskell programming-in-haskell pure-functional

Last synced: 16 Mar 2025

https://github.com/jaypmorgan/dfp

A suite of functional tools for all your functional programming

functional-programming python

Last synced: 16 Mar 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/eilvelia/contravariant

Contravariant functors in JavaScript + Flow with correct type inference

fantasy-land functional-programming

Last synced: 04 Mar 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/akabe/ocaml-js-boilerplate

A template repository for OCaml and JavaScript

functional-programming javascript ocaml

Last synced: 27 Apr 2026

https://github.com/foyez/fp

Functional Programming

functional-programming programming-paradigms

Last synced: 07 Feb 2026

https://github.com/swissmanu/react-rxjs-typescript

An experiment to implement a React user interface using TypeScript that leverages RxJS.

functional-programming react rxjs typescript

Last synced: 17 Apr 2026

https://github.com/alansastre/java-functional-advanced

Programación funcional en Java. Procesamiento de datos con la API Stream en Java. Interfaz funcional Comparator.

collector comparator flatmap functional-programming java java-stream-api java11 java17 java8 reduce sorted stream-api stream-java stream-processing

Last synced: 20 Sep 2025

https://github.com/tosun-si/bees-demo-fp

This project shows some legacy code and patterns and a refactoring for each of them with Functional Programming, lambda and functions composition

functional-programming functions-composition java lambda refactoring

Last synced: 01 Feb 2026

https://github.com/federicobruzzone/software-foundations

Solutions (in Coq) of the exercises in the software foundation books.

coq coq-library functional-programming ocaml software-foundations

Last synced: 04 Feb 2026

https://github.com/awinogradov/condicom

Apply React component enhancements by condition

component enhancement functional-programming hoc react

Last synced: 28 Apr 2026

https://github.com/b-gran/promise-plumbing

Functional, Promise-based control flow primitives inspired by async

async control control-flow flow functional functional-programming promise

Last synced: 06 Jul 2025

https://github.com/rizkimufrizal/docker-spring-cloud-gateway

This project was created to learn reactive programming, functional programming and custom api gateway with Spring Cloud Gateway

api-gateway cloud functional-programming gateway reactive-programming spring

Last synced: 29 Apr 2026

https://github.com/retheviper/gotlin

Some Kotlin-like functions.

functional-programming go golang kotlin

Last synced: 29 Apr 2026