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/pouria-mirebrahimi/ts-mapper

You can map a flat object into fully structured object.

functional-programming javascript mapper typescript

Last synced: 05 May 2026

https://github.com/supermacro/elm-todo-mvc

Reimplementation of Elm's TodoMVC using Elm v0.18

elm elm-todo functional-programming todomvc

Last synced: 17 May 2026

https://github.com/sgb-io/functional-algos

A utility library containing algorithm implementations, using functional TypeScript.

algorithms data-structures functional-programming javascript javascript-algorithms typescript

Last synced: 06 Mar 2026

https://github.com/badeend/result

For failures that are not exceptional: `Result<T,E>` for C#.

csharp error-handling functional-programming monad

Last synced: 03 Aug 2025

https://github.com/mrcaidev/design-patterns

Design patterns written in TypeScript, under both OOP and FP paradigm.

design-patterns fp functional-programming object-oriented-programming oop typescript

Last synced: 27 Sep 2025

https://github.com/0xleif/closure

Define and chain Closures with Inputs and Outputs

chain closure closures functional-programming functions scope state swift then thenable

Last synced: 05 Apr 2025

https://github.com/luhring/funky

A Go (golang) linter that finds mutations.

ast functional-programming golang linter mutations

Last synced: 12 Jun 2026

https://github.com/sciexp/python-nix-template

❄️ (om)nix template for python workspace monorepos +/- pyo3 extension modules with uv2nix and flake-parts 🐍

conda containers devcontainer functional-programming just monorepo nix nix-flake oci pixi pyo3 python python3 railway-oriented-programming runtime-typechecking static-typechecking template-project uv

Last synced: 17 Feb 2026

https://github.com/sylphlab/media-curator

Intelligently organizes and deduplicates large digital photo and video collections using metadata and content analysis (perceptual hashing, LSH).

bun cli deduplication exiftool ffmpeg functional-programming image-processing js lmdb media-organizer nodejs organizer perceptual-hashing photo sharp sqlite typescript video-processing

Last synced: 12 Apr 2025

https://github.com/georgesittas/monads-presentation

Presentation about the role of monads in Functional Programming

functional-programming haskell latex monads presentation

Last synced: 17 May 2026

https://github.com/matthewsecrist/fxnk

A functional programming library for Elixir inspired by Ramda.

elixir functional-programming

Last synced: 13 Apr 2025

https://github.com/ubugeeei/tnix

[WIP] tnix (typed-nix) is gradual type system for nix

checker functional-programming gradual-typing haskell nix types

Last synced: 07 Apr 2026

https://github.com/owainlewis/hof

Higher order functions for Golang

collections functional-programming golang higher-order-functions

Last synced: 26 Mar 2025

https://github.com/duboviy/funpy

:snake: A sandbox for trying out functional programming in Python

functional functional-programming lambda lambda-calculus lambda-expressions lambda-functions

Last synced: 07 Sep 2025

https://github.com/surovv/pnmg

Powerful and lightweight deep pattern matching for Javascript

fp functional-programming javascript js match matcher matching pattern pattern-matching pattern-recognition patterns

Last synced: 10 Jun 2026

https://github.com/winston0410/ramda-dom-utilities

An utility library that enables currying and piping for DOM manipulation functions with Ramda

dom functional-programming ramda utilities-library

Last synced: 09 May 2025

https://github.com/coderitual/round-royale

My entry for the js13k 2017 game jam

functional-programming game gamedev js13k js13kgames

Last synced: 10 Jul 2025

https://github.com/yornaath/fp-ts-http

Opinionated, strongly typed http middleware library using fp-ts fp-ts-routing and io-ts for decoding of io

fp-ts functional functional-programming http io-ts koa koa2 rest routing types

Last synced: 19 May 2026

https://github.com/laserdisc-io/stream-it

An integration test library for end-to-end testing of streaming applications

end-to-end-testing functional-programming scala smoke-test test

Last synced: 23 Jun 2025

https://github.com/khalyomede/monad

Maybe, Option and Result monads for PHP.

adt functional-programming monad

Last synced: 05 Apr 2025

https://github.com/jaydenfyi/tinyresult

A tiny, zero-dependency library for handling synchronous and asynchronous results with robust error handling

algebraic-data-types either fp functional-programming result result-type

Last synced: 25 May 2026

https://github.com/connor-makowski/pamda

Functional programming for python

functional-programming python

Last synced: 14 Apr 2025

https://github.com/michalzalecki/paradajs

Monads implementation targeting compliance with Fantasy Land

functional-programming monads

Last synced: 04 Jul 2026

https://github.com/patrimart/ngix-store

IxJS augmented state management for Angular applications, inspired by Redux and built upon @ngrx.

angular functional-programming ixjs ngix ngrx redux rxjs5

Last synced: 07 May 2026

https://github.com/ilxqx/go-streams

A lazy, type-safe stream processing library for Go 1.25+ with parallel execution, collectors, and iter.Seq support.

functional-programming go golang iter-seq lazy-evaluation parallel-processing streams

Last synced: 17 Feb 2026

https://github.com/halogenandtoast/mirin

A tiny redirection server in Spock backed by MySQL.

functional-programming haskell spock

Last synced: 06 Apr 2025

https://github.com/mkulke/hyper-ts-playground

A typescript express app with monadic middlewares and typestates.

fp-ts functional-programming typescript typestate

Last synced: 11 Jun 2026

https://github.com/leostera/zazen

:pray: sit, breathe, code.

arrow functional-programming minimal

Last synced: 04 Apr 2025

https://github.com/fastai/fastdispatch

Wrapper for plum dispatch to make it more compatible with fastcore's typedispatch

fastai functional-programming multiple-dispatch plum python

Last synced: 18 Apr 2026

https://github.com/constantiner/fun-ctional

The library brings most of the familiar functional techniques (like functional composition) to asynchronous world with shining Promises

async asynchronous asynchronous-functions asynchronous-programming client-side functional functional-composition functional-programming javascript javascript-library library mapreduce nodejs promise promise-handling promises server-side

Last synced: 11 Apr 2025

https://github.com/eloyekunle/haskell_snippets

Useful snippets and algorithms in Haskell

algorithms functional-programming hackerrank haskell

Last synced: 17 May 2026

https://github.com/zrosenbauer/massaman

Functional programming utilities for TypeScript. Result types, pattern matching, async pipelines.

es-toolkit functional-programming pattern-matching result-type ts-pattern typescript

Last synced: 19 May 2026

https://github.com/jaalonso/exercitium

Ejercicios de programación funcional con Haskell

functional-programming haskell

Last synced: 02 Aug 2025

https://github.com/lukechu10/nopo

An interpreted functional programming language

functional-programming interpreter language

Last synced: 14 Apr 2025

https://github.com/fehu/opentracing-scala

Functional interface for opentracing and its implementation, based on cats.data.StateT.

cats-effect functional-programming opentracing scala

Last synced: 24 Dec 2025

https://github.com/tjmaynes/shopping-cart-service-py

Sample shopping cart CRUD service using Python3/FastAPI and Kubernetes

crud-service fastapi functional-programming kubernetes python3

Last synced: 11 Sep 2025

https://github.com/shahroz16/tilde

A functional tool-belt for Kotlin Language similar to Lo-Dash or Underscore.js in Javascript and Dollar in Swift

belt dollar functional-programming java-8 kotlin lodash underscore

Last synced: 20 May 2026

https://github.com/claeusdev/l-lang

A very minimal functional programming language implementation

functional-programming haskell math

Last synced: 18 Jun 2025

https://github.com/jahed/promises

Composable Functions for Promises

async functional-programming javascript promise

Last synced: 17 Mar 2025

https://github.com/urbint/extra

A collection of extra utilities and extensions to the Elixir standard library

elixir functional-programming utilities

Last synced: 20 Feb 2026

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

🎄 Solutions to Advent of Code problems in whatever language I feel like using (mirror)

advent-of-code christmas contest functional-programming puzzles

Last synced: 10 Mar 2026

https://github.com/stevemao/composition-trace

Impure trace function to see what's going on in a composition

composition debug debugger debugging debugging-tool fp functional-programming

Last synced: 11 Nov 2025

https://github.com/hbomb79/advent-of-code

Advent of Code solutions in Scala3 (2022), OCaml (2023) and Elixir (2024)

advent-of-code advent-of-code-2022 advent-of-code-scala elixir functional-programming ocaml scala scala3

Last synced: 01 Mar 2025

https://github.com/muhammadhassanraza25/quiz-app

I made this Quiz App using HTML, CSS & JavaScript. In end of the quiz this Quiz App also shows user's result.

css-flexbox css-grid css3 functional-programming html5 javascript quiz quiz-application

Last synced: 15 Feb 2026

https://github.com/mbarcia/pipelineframework

The Pipeline Framework is a powerful framework for building reactive pipeline processing systems. It simplifies the development of distributed systems by providing a consistent way to create, configure, and deploy pipeline steps with automatic gRPC and REST adapter generation.

functional-programming grpc microservices quarkus-extension reactive-programming rest

Last synced: 14 Jan 2026

https://github.com/brauliov/logica-y-programacion

Prácticas de la asignatura de Lógica y Programación del curso 2015-2016

criptography functional-programming haskell lambda-calculus

Last synced: 31 Jan 2026

https://github.com/danrigsby/redux-reducer-side-effects

Easy to follow side effect library for redux reducers

functional-programming middleware react redux side-effects

Last synced: 07 May 2026

https://github.com/mallozup/blacktango

console client for software maintainers

api-client elixir erlang functional-programming github graphql

Last synced: 06 May 2026

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

Primitives for functional programming in PHP

functional-programming php

Last synced: 14 Jan 2026

https://github.com/laurabeatris/odd-list-filter

Elixir algorithm exercise to filter odd numbers from a given string list and return its quantity

algorithms-and-data-structures elixir enumerable functional-programming

Last synced: 07 Apr 2025

https://github.com/bobgodwinx/coordinatorpattern

Coordinator pattern combined with MVVM architecture, functional programming supported by RxSwift in iOS Swift App

coordinator design-patterns functional-programming ios mvvm-architecture rxcocoa rxswift swift

Last synced: 09 Jun 2026

https://github.com/federicobruzzone/caml-writer

CamlWriter is a terminal-based text editor developed using the OCaML.

functional-programming ocaml terminal-based text-editor

Last synced: 07 Feb 2026

https://github.com/gibbok/files-importer

files-importer is a Node.js command line tool, written in functional programming style, which synchronously copy the contents of a directory (include subdirectories recursively) to another location without creating duplicate files. It can be used to import only images and videos that have not already been imported from a camera or a memory card.

compare-data compare-files diff filesystem functional-programming

Last synced: 31 Jan 2026

https://github.com/bohdanmoroziuk/code-snippets

This is my personal knowledge-base. Here you'll find code-snippets, technical documentation, and command reference for various tools, and technologies.

cheat-sheets code-snippets front-end-development functional-programming knowledge-base oop react rest-api software-architecture software-development testing typescript vue3

Last synced: 13 Apr 2026

https://github.com/sczyh30/samsara-aquarius

:zap:Samsara Aquarius - a technology sharing web application written in Scala

akka functional-programming play-framework scala slick web-application

Last synced: 06 Feb 2026

https://github.com/12joan/rubio

Write pure, functional code that encapsulates side effects using the IO monad (and friends) in Ruby

functional-programming io-monad maybe-monad state-monad

Last synced: 28 Jan 2026

https://github.com/improveTheWorld/DataFlow.NET

Unified sync/async stream processing with category-based filtering. Single API for IEnumerable/IAsyncEnumerable with Cases/SelectCase/ForEachCase pattern. Eliminates Rx complexity, enables elegant pipeline composition for real-time data processing.

async-await async-enumerable category-filtering csharp data-streaming dotnet event-processing fluent-api functional-programming linq-extensions observables-alternative pipeline-composition- reactive-programming stream-processing

Last synced: 17 Jul 2025

https://github.com/amitayh/monadic-parser

Example parsers in Scala with monadic composition

functional-programming parser-combinators scala

Last synced: 10 Jan 2026

https://github.com/tralahm/iot-system

A complete hardware agnostic IoT system for monitoring home temperatures written in scala

akka-actors functional-programming iot-application sbt scala tralahm tralahtek

Last synced: 31 May 2026

https://github.com/naamanu/l-lang

A very minimal functional programming language implementation

functional-programming haskell math

Last synced: 26 Feb 2026

https://github.com/mallozup/doghub

a functional stale bot for Github Issue and PRs.

bot clojure data-driven functional-programming github monitor stale

Last synced: 09 Feb 2026

https://github.com/danielres/mytribe

a directory of friends for local/remote communities | highly experimental | ORM-less | nodejs + react + redux | docker-cloud CD + CI | lean event-sourcing

ci create-react-app docker docker-cloud docker-compose droplet functional functional-programming jest knexjs nodejs orm-less react redux

Last synced: 11 Apr 2026

https://m-aminalizadeh.github.io/Awesome-books-collection/

This project is about building a web-app to store your books collection in browser's local storage with CRUD feature.

bootstrap5 crud-application es6-javascript eslint functional-programming gh-pages html-css-javascript javascript lighthouse localstorage npm oop responsive-website routes spa ux-ui

Last synced: 02 Apr 2025

https://github.com/okmttdhr/fp-minimal

Minimal typed functional programming in TypeScript

functional-programming typescript

Last synced: 22 Apr 2025

https://github.com/mooerslab/emacsatx4may2022

Brief introduction to functional programming in Emacs Lisp

elisp emacs functional-programming

Last synced: 08 Jan 2026

https://github.com/mamal72/ifexpr

Simple functional library to offer if conditions as expressions, not statements

functional-programming typescript typescript-library

Last synced: 31 Mar 2025

https://github.com/andreacrotti/lambda

Talk about functional programming

functional-programming lambda python talk

Last synced: 28 Apr 2026

https://github.com/adam-rocska/invertible-typescript

A library for creating and managing invertible functions and type-safe pipelines in TypeScript.

composition compositionality functional functional-programming inverse invertible pipe pipeline proverse pure stateless strict typesafe typescript

Last synced: 09 Apr 2025

https://github.com/neverendingqs/pyiterable

Python comes with some nice built-in methods for operating on iterables, but it can get messy really quickly if you want to transform an iterable multiple times. Write more expressive code by chaining built-in transformations with this module.

functional-programming python

Last synced: 24 Apr 2025

https://github.com/nevrome/r.futhark.example

Very basic test package to explore how one could run and develop Futhark code through Rcpp in an R package

functional-programming futhark r rcpp

Last synced: 27 Apr 2026

https://github.com/curiosity/yunobuiltin

python functions that we often ask "y u no builtin?!?"

functional-programming python utility-library

Last synced: 19 Jun 2026

https://github.com/guillempuche/effect_server_react

Clean architecture using the Effect library: domain, usecase, repositories, SQL, Node server

clean-architecture ddd-architecture domain-driven-design effect functional-programming nodejs server sql

Last synced: 26 Apr 2026