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/kevindasilvas/newer

Newer is a haskell cli app to list and search for news using the currents api

aeson chalk cli cli-app currents functional-programming haskell wreq

Last synced: 13 Jun 2025

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/iepathos/mindset

A zero-cost, effect-based state machine library for Rust.

effects functional-programming rust state-machine

Last synced: 13 Jan 2026

https://github.com/rxtoolkit/logs

🗒️ RxJS utilities for backend logging

fp functional-programming logging observables package reactive-programming rxjs

Last synced: 02 Aug 2025

https://github.com/aartaka/lamber

A functional scripting language compiling to pure Lambda Calculus

common-lisp functional-programming haskell lambda-calculus lisp lua scripting wisp

Last synced: 05 May 2026

https://github.com/asbhogal/javascript-algorithms-and-data-structures

Course notes for the JavaScript course provided by freeCodeCamp entitled 'JavaScript Algorithms and Data Structures.' Notes from activites and exercises will be pushed to this repo to serve as a 'bank' of resources and future reference.

algorithms data-structures data-structures-and-algorithms debugging dsa dsa-algorithm dsa-practice es6 freecodecamp functional-programming html5 javascript javascript-algorithms js object-oriented-programming oop

Last synced: 14 Oct 2025

https://github.com/eliasgit2017/clojure_sudoku_game-solver

Sudoku Game (including a simple solver) written in Clojure for the LU3IN020 course "Principes des programmes déclaratifs" at Sorbonne Université.

clojure clojure-library functional-programming leiningen seesaw sudoku sudoku-game sudoku-generator sudoku-puzzle sudoku-solver

Last synced: 31 Mar 2025

https://github.com/sandromaglione/nextjs_search_view_pagination

NextJs application where you can search and view a list of users, implemented with pagination

eslint fp-ts functional functional-programming io-ts next pagination prettier search tailwindcss typescript users

Last synced: 09 Apr 2026

https://github.com/rxtoolkit/ws

🔌 RxJS operators for working with WebSockets

fp functional-programming observables package reactive-programming rxjs websocket websockets

Last synced: 10 Jun 2026

https://github.com/vitorluizc/functional-resources

Some pure-functions to deal with everything.

functional-programming javascript

Last synced: 15 Jan 2026

https://github.com/drag13/whendo

Small function that can be used instead if-then statement in functional style programming with JavaScript

conditional-statements development functional-programming ifthen javascript

Last synced: 25 Oct 2025

https://github.com/valentindeaconu/terraform-provider-func

Supercharge Terraform with functional programming. 🚀

functional-programming javascript terraform terraform-provider

Last synced: 16 Oct 2025

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

Programación funcional e interfaces funcionales en Java 8 y versiones posteriores

consumer functional-interfaces functional-programming functions java java-8 java11 java17 predicate supplier

Last synced: 10 Jun 2026

https://github.com/frantjc/go-fn

Functional stuff for Go.

functional functional-programming go golang

Last synced: 22 Feb 2026

https://github.com/rajasharan/elm-countdown-problem

Solution for the countdown-problem in elm

elm elm-demos elm-lang functional functional-programming

Last synced: 13 Jun 2026

https://github.com/pyccel/lampy

Extension of Pyccel for functional programming

fortran functional-programming hpc lambda-calculus openacc openmp python

Last synced: 26 Feb 2026

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/skykanin/coding-test

Online coding test

clojure functional-programming

Last synced: 24 Oct 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/mollybeach/apetalie

Apetalie Javscript Web3 Application Function Methods Solidity

application context-api functional-programming javscript solidity web3

Last synced: 24 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/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/palutz/monads-gym

Stretching the muscles with monads...

functional-programming monads scala

Last synced: 06 Jun 2026

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/baransu/sugar

Experimental, fuctional language for creating webapps

elixir-lang experiment functional-programming javascript language

Last synced: 25 Apr 2026

https://github.com/dhruvjawalkar/ocpjavase17dev

Reference code files used during practice for newer features in Java SE 17, Lambdas, Functional Programming, Streams, Concurrency, Sealed Classes, LocalDateTime methods, Records ...

concurrent-programming duration functional-programming lambda-functions localdatetime records sealed-classes sealed-interface streams

Last synced: 13 Oct 2025

https://github.com/july541/functional-programming-in-csharp

A practice during learning C# functional programming.

csharp functional-programming

Last synced: 07 Jun 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/didierofrivia/flipcards

Simple memory cards game written in Elm

elm functional functional-programming futurama

Last synced: 26 Apr 2026

https://github.com/noyzys/nautchkafe-rabbit-bridge

Lightweight, flexible, and functional message-passing pubsub system built with RabbitMQ

broker fp functional-programming java message-broker message-queue pubsub rabbit rabbitmq rabbitmq-client vavr

Last synced: 28 Nov 2025

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/eilvelia/contravariant

Contravariant functors in JavaScript + Flow with correct type inference

fantasy-land functional-programming

Last synced: 04 Mar 2026

https://github.com/jordanblakey/ffjs

Lightweight, modular utility functions for arrays, browser, dates, strings, math, and more.

functional-programming javascript library lodash utility-library

Last synced: 28 Jan 2026

https://github.com/federicobruzzone/setup-ocaml-project-with-dune

This repository provides a basic setup for an OCaml project with using Dune as the build system. It aims to provide a simple and straightforward structure for your OCaml project, allowing you to focus on writing code without the complexities of a build system.

functional-programming ocaml ocamlbuild project-template setuptools

Last synced: 19 Feb 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/atticuskuhn/typescript-lens

lens library in typescript

fp functional-programming haskell lens

Last synced: 27 Apr 2026

https://github.com/darky/context-fp-go

Functional programming context for Golang

context dependency-injection di fp funcitonal functional-programming go golang

Last synced: 14 Jun 2026

https://github.com/lazywithclass/project-lamp

Source code for book content and site

book functional-programming haskell purescript

Last synced: 27 Apr 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/ahoward2/easier-nest-server

Functional programming approach to a Nest JS server. ƛ

functional-programming nestjs typescript

Last synced: 13 May 2026

https://github.com/alonsodomin/purerand

Pure functional random generator of data

functional-programming random random-generation scala scalajs

Last synced: 27 Feb 2026

https://github.com/itemconsulting/enonic-wizardry

Functional utility library for Enonic XP

enonic enonic-xp functional-programming typescript

Last synced: 19 Jan 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/lebrancconvas/typescript-functional-programming

Using TypeScript to clarify the concept about "Functional Programming".

functional-programming

Last synced: 05 Sep 2025

https://github.com/mrdimosthenis/creative-elm

Drawing creation in Elm

elm functional-programming

Last synced: 26 Oct 2025

https://github.com/rxtoolkit/utils

🛠️ RxJS operators for very common data transformation tasks

fp functional-programming observables package reactive-programming rxjs

Last synced: 15 Jun 2026

https://github.com/meta-inf/mlc

[O]Caml compiler

compiler functional-programming ocaml

Last synced: 31 May 2026

https://github.com/brettm12345/tailwind-generator

A cli for managing your tailwind setup complete with type generation. WIP

functional-programming optparse-applicative purescript tailwindcss

Last synced: 28 Apr 2026

https://github.com/rcardin/fp-scala

My solutions to exercises of "Functional Programming in Scala".

exercises functional-programming scala

Last synced: 12 Jul 2025

https://github.com/petitviolet/scala_fp_layered

functional layered architecture implementation example

akka-http ddd functional-programming scala scalaz tagless-final

Last synced: 08 Jun 2026

https://github.com/namoshizun/goodjson

Functional validators to check anything about your JSON with ease.

functional-programming json json-schema python validation

Last synced: 09 May 2026

https://github.com/jaalonso/logica-en-haskell

Desarrollo de la lógica con Haskell.

functional-programming haskell logic

Last synced: 26 Oct 2025

https://github.com/rudini/node_ports_adapters

Ports and adapter implementation of a restaurant reservation

adapter functional-programming hexagonal-architecture javascript nodejs ports typescript

Last synced: 16 Apr 2026

https://github.com/twobin/twobin.blog

twobin'blog 爱生活,爱分享,爱前端

es6 functional-programming react redux

Last synced: 29 Apr 2026

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

Functional programming

clojure functional-programming racket scala

Last synced: 04 Mar 2026

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/rabestro/grokking-fp-exercises

Solutions to exercises from the book Grokking Functional Programming. This repository showcases my journey of learning functional programming concepts and applying them in practice, with a focus on Scala.

exercises functional-programming learning-by-doing scala

Last synced: 12 Jun 2025

https://github.com/shanoaice/bethlehem

A minimal functional programming library for JavaScript.

functional-programming ramda typescript

Last synced: 11 Jun 2026

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/rxtoolkit/socketio

🚰 RxJS operators for working with Socket.io (v4 or lower) servers

fp functional-programming observables package reactive-programming realtime rxjs socket-io socketio streaming websocket websockets

Last synced: 12 Feb 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/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/futurum-dev/dotnet.futurum.core.polly

Small dotnet library, allowing you to use Polly with Futurum.Core, based on the concepts behind 'Railway Oriented Programming'.

csharp dotnet functional-programming polly polly-resilience railway-oriented-programming result-type

Last synced: 14 Jan 2026

https://github.com/hd-genius/collection-ops

library that makes collection operations in javascript more functional

collections functional-programming javascript nodejs npm-package

Last synced: 10 May 2026

https://github.com/pfpack/pfpack-dependency-registry

PrimeFuncPack Dependency Registry is a library for .NET providing a dependency registrar intended for registering services, including dependency trees built by PrimeFuncPack Dependency, in the .NET dependency injection mechanism.

csharp dependency-graph dependency-injection dependency-injection-container dependency-injection-framework dependency-injection-library dependency-injection-pattern dependency-tree dotnet dotnet-core functional-programming inversion-of-control inversion-of-control-container pipeline pipeline-framework pipeline-library pipelines

Last synced: 10 May 2026

https://github.com/kalongn/cse-216

Programming Abstraction (College Class).

functional-programming generic java ocaml python recursion type-hierarchies

Last synced: 12 Apr 2026

https://github.com/tbhvishal/js-toolbox

Lightweight JavaScript utilities toolkit: helpers, snippets, and productivity tools. ESM, Node.js, TypeScript-friendly, zero dependencies. Arrays, strings, dates, async, functional programming - perfect for beginners and pros

beginner-friendly best-practices code-snippets-javascript copy-paste developer-tools esm functional-programming hacktoberfest helpers javascript library lightweight nodejs npm-package productivity-tools snippets utilities utils vanilla-js zero-dependencies

Last synced: 29 Apr 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