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/mizcausevic-dev/haskell-policy-engine

Type-safe policy DSL in Haskell. Algebraic data type Policy = Allow | Deny | When; predicates compose via And/Or/Not; pure total evaluator; Aeson JSON codec; Hspec + QuickCheck tests. Functional purity flex for the agent-governance theme.

access-control aeson ai-governance dsl functional-programming haskell hspec platform-engineering policy-engine quickcheck

Last synced: 01 Jun 2026

https://github.com/oguzadali/thex

Blog project created with NodeJs. ExpressJs, Handlebars, MongoDB were used in the project.

blog-theme express functional-programming handlebars javascript nodejs

Last synced: 14 Apr 2026

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

imersao-tecnicasdeinvasao-python(Bruno-Fraga)

functional-programming python3

Last synced: 08 Jun 2026

https://github.com/bsgbryan/pug

A game engine targeted for procedural content coded in a functional style

directx functional-programming game-development game-engine

Last synced: 04 Apr 2025

https://github.com/wdalmut/curry

An example of currying and partial application

currying functional-programming

Last synced: 14 Oct 2025

https://github.com/mrbrunelli/curso-elixir

Meus estudos da Linguagem Elixir

elixir elixir-lang erlang functional-programming

Last synced: 19 Apr 2026

https://github.com/stephenombuya/spreadsheetapplication

A simple, interactive spreadsheet web application built using HTML, CSS, and JavaScript. This app allows users to create, modify, and organize data in a grid-like format, mimicking a basic spreadsheet interface.

css3 functional-programming html5 javascript

Last synced: 06 May 2026

https://github.com/jwalsh/simulacra-scheme

Implementation of Jean Baudrillard's simulacra concepts in Guile Scheme, with social media simulation example and visual representations

baudrillard functional-programming guile philosophy scheme simulacra visualization

Last synced: 06 Feb 2026

https://github.com/swirrl/functional-rap

Slides for 2nd half of the talk "The world won't let you RAP and what to do about it" held at DataConnect2022

data-engineering functional-programming reproducible-analytical-pipeline

Last synced: 29 Jan 2026

https://github.com/lapets/course-programming-languages

Lecture notes, assignments, and other materials for a one-semester course on programming language concepts and theory, interpretation and compilation, and programming paradigms.

bnf compilers functional-programming interpreters lecture-notes parsing programming-languages static-analysis syntax type-checking type-systems

Last synced: 14 Jul 2025

https://github.com/joaomilho/presentations

Presentations throughout all these years

craftsmanship functional-programming haskell peg philosophy react ruby

Last synced: 15 Apr 2026

https://github.com/tolikpylypchuk/fsbowling

A library which calculates a bowling score, written in F#

dotnet-core dotnet-standard f-sharp functional-programming

Last synced: 17 May 2026

https://github.com/mansagroup/eslint-config

Sharable ESLint configurations for the coding standards and rules at Mansa.

eslint eslint-config fp functional-programming javascript mansa mansagroup nextjs nodejs react typescript

Last synced: 15 Apr 2026

https://github.com/milandjurdjevic/either

Functional-style error handling in C# using a simple Either implementation.

csharp error-handling functional-programming monads

Last synced: 24 Jun 2025

https://github.com/gokselgoktas/hotline

A simple and straightforward utility library for Lua

functional-programming lua luarocks utility-library

Last synced: 20 Jul 2025

https://github.com/catseye/iphigeneia

A toy hybrid imperative/functional programming language

functional-programming imperative-programming-language toy-language

Last synced: 17 Dec 2025

https://github.com/nikvoronin/funsokoban

Minimalistic functional Sokoban (console, no mutable vars). Initially vibe coded with ChatGPT 5. Brought to working condition by Human Being 45.

console-application fsharp functional-programming game game-development gamedev sokoban sokoban-game vibe-coding

Last synced: 13 Oct 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/robertdober/testdrivingvim

Developping some common patterns in VimL, Test Driven.

functional-programming object-oriented tdd viml

Last synced: 30 Jan 2026

https://github.com/davidlee18/minihaskell

a little, functional, and lazy language

functional-programming lazy programming-language

Last synced: 30 Jan 2026

https://github.com/neelsomani/smart-cache

A Python library that analyzes your module and automatically caches purely functional sections

caching-library functional-programming pure-function side-effects

Last synced: 09 Apr 2025

https://github.com/psenger/functional-programming-examples-and-patterns

This is a set of Functional Programming Examples and Patterns

examples functional-programming javascript

Last synced: 13 Jul 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/kekyo/funcity

A functional language interpreter with text processing, easy embeddable! 📜

embedding functional-programming interpreter javascript text-processor typescript

Last synced: 31 Jan 2026

https://github.com/justdvnsh/func.py

A practical functional library for Python Lovers.

algorithms functional-programming library package pip python python3

Last synced: 07 Sep 2025

https://github.com/aygp-dr/fixed-point-explorer

Y combinator and fixed-point recursion exploration across Scheme dialects with formal verification

functional-programming recursion scheme y-combinator

Last synced: 07 Feb 2026

https://github.com/denisdubochevalier/monad

Implementation of monads in go with generics

functional-programming monad monads

Last synced: 21 Jan 2026

https://github.com/ildella/pipelean

A pragmatic library for sequential async operations with first-class error handling.

function-composition functional-programming javascript javascript-library

Last synced: 06 Jun 2026

https://github.com/daggerok/functional-and-reactive-principles-in-scala

Never too late! My learning process for 'Functional Programming Principles in Scala' and 'Principles of Reactive Programming in Scala' courses!

functional functional-programming functional-reactive-programming functional-testing scala

Last synced: 14 Jun 2026

https://github.com/liitfr/sort-my-items

Sort an array's (or anything else's) items by defining a hierarchical set of criterias, à la FP

array criteria functional-programming hierarchical items ordering sorting

Last synced: 25 Jul 2025

https://github.com/johnnynotsolucky/fu

Ramda, but shitty and without the docs.

functional-programming utilities

Last synced: 13 Oct 2025

https://github.com/tralahm/scala-by-example

Scala is a tastefully typed language: it is statically typed, but explicit types appear in just the right places. Scala takes powerful features from object-oriented and functional languages, and combines them with a few novel ideas in a beautifully coherent whole. The syntax is so lightweight, and its primitives so expressive, that APIs can be used with virtually no syntactic overhead at all. Examples can be found in standard libraries such as parser combinators and actors. In this sense Scala supports embedded domain-specific languages.

functional-programming sbt scala tralahm tralahtek

Last synced: 31 May 2026

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/max-sir/kotlintraining_koans

Solution for all tasks from Kotlin Koans https://play.kotlinlang.org/koans/overview

algorithms datastructures functional-programming koans kotlin learning-kotlin-for-android oop-in-kotlin solutions-for-kotlin-koans tasks

Last synced: 15 Jan 2026

https://github.com/leonardonicola/fp

Utility library for functional programming in Typescript

functional-programming typescript utils

Last synced: 01 Feb 2026

https://github.com/ifkas/mars-dashboard-project

This is the second project that passed the test for the Udacity Intermediate JavaScript nano degree.

api express-js functional-programming javascript node-js vanilla-javascript

Last synced: 10 Apr 2026

https://github.com/sarthakmakhija/joy-of-kotlin

Repository containing solutions for problems in "Joy of Kotlin" book

functional-programming junit5 kotlin

Last synced: 10 Jan 2026

https://github.com/hongchangwu/pfds

Exercises from "Purely Functional Data Structures"

data-structures functional-programming

Last synced: 13 Oct 2025

https://github.com/bensimmers/matchly

TypeScript utility for pattern matching in typescript - Inspired by F# match

functional-programming library typescript

Last synced: 23 Jun 2025

https://github.com/invrtd-h/ffffff

JS의 underscore 라이브러리를 그대로 C++로 구현하는 프로젝트입니다

cpp cpp20 functional-programming

Last synced: 12 Jul 2025

https://github.com/spacesoldier/starty

a lightweight framework which helps building modular and configurable Node.js applications

ddd functional-programming javascript nodejs rapid-development rapid-prototyping rest-api

Last synced: 07 May 2026

https://github.com/federicobruzzone/99-erlang-problems

Implementations of the 99 problems in Erlang.

99problems erlang functional-programming problem-solving

Last synced: 02 Feb 2026

https://github.com/lazywithclass/fp

Notes I take while I study FP, and related subjects

functional-programming study

Last synced: 26 Feb 2026

https://github.com/fantiga/hackernews-list-nextjs-react-ts

This is an infinite loading demo generated from the HackerNews API using NextJS, React and styled-components.

functional-programming nextjs react react18 styled-components typescript

Last synced: 15 Apr 2026

https://github.com/azuobs/naive-workflow-manager

Naive-workflow-manager microservice with akka-http and akka-actors

akka-actors akka-http cron crontab docker example-project functional-programming mysql sbt scala

Last synced: 07 May 2026

https://github.com/youz/lazyk-collection

Writing Lazy K interpreters in various languages

esolang functional-programming lazy-k

Last synced: 02 Feb 2026

https://github.com/primeeagle/concerto

A modern programming language with an advanced type system, supporting both object-oriented and functional programming paradigms.

advanced-types compiled-language functional-programming object-oriented-programming programming-language

Last synced: 08 Feb 2026

https://github.com/youz/honestb

The Honest B programming language

armoredcore6 esolang functional-programming lazy-k ruby

Last synced: 02 Feb 2026

https://github.com/sigurd4/fn_zip

Provides a zip trait for functions, allowing two functions to be combined at compile-time before being called.

fp function functional-programming functions join lambda no-std no-std-alloc rust zip

Last synced: 08 Feb 2026

https://github.com/armadacore/fnt

A collection of utility functions to make your TypeScript code more robust and safer.

functional-programming typesafe typescript utilities

Last synced: 08 Feb 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/arnaudsm/array-deluxe

Superpowers for your JavaScript arrays 🦸

array functional-programming groupby list pipes

Last synced: 22 Jun 2025

https://github.com/forketyfork/learn-you-a-haskell

Code examples and exercises from the "Learn You a Haskell for Great Good!" book

functional-programming haskell learn-you-a-haskell tutorial

Last synced: 26 Feb 2026

https://github.com/th3n0m4d/functional-programming-meetup

Basic functional programming ideas illustrated with (the awesome) Ramda library.

functional-programming presentation slides

Last synced: 09 Feb 2026

https://github.com/kamalfarahani/katharos

A library providing useful types and functions for functional programming in Python

functional-programming monads python

Last synced: 02 Feb 2026

https://github.com/surjoyday/functional-procedural-objectoriented-programming

Code examples illustrating different programming paradigms: Object-Oriented Programming (OOP), Procedural Programming (PP), and Functional Programming (FP).

functional-programming javascript oop paradigms-of-programming procedural-programming

Last synced: 14 Jun 2026

https://github.com/mehmet-github06/shopping-card

Bu depo, basit bir alışveriş sepeti uygulamasını içerir. JavaScript, HTML, ve CSS kullanılarak geliştirilmiştir. Ayrıca, harici bir API'den rastgele ürün verilerini çeker.

api bootstrap dom-manipulation functional-programming html-css-javascript responsive try-catch

Last synced: 15 Apr 2026

https://github.com/missingfaktor/piper

Dead-simple threading with functions, in Clojure

clojure functional-programming

Last synced: 12 Oct 2025

https://github.com/icepanorama/learning-sml

A collection of small programs written as I'm refamiliarizing myself with Standard ML.

functional-programming sml standard-ml

Last synced: 18 Mar 2026

https://github.com/p-obrthr/functional-csharp

functional experimentation with C#

csharp dotnet functional-programming

Last synced: 15 Apr 2026

https://github.com/btylrob/btylrob.github.io

Personal OPAM / Lua Website

blog functional-programming ocaml soupault

Last synced: 29 Apr 2026

https://github.com/eloyhere/semantic-java

Semantic-Java is a modern, maven Java stream processing framework with zero dependencies. It elegantly blends the fluency of Java Streams, the laziness of JavaScript generators, and intelligent index-based control inspired by database indexing — perfect for time-series, event streams, and high-performance data pipelines as a maven pendency.

data functional functional-programming java pipeline stream

Last synced: 07 Apr 2026

https://github.com/ari-s-123/pdp-hw3

A cli tool built with Bun, TypeScript, and Functional Programming to process listings files from the AirBnB Get the Data page.

airbnb bun cli csv fast-csv functional-programming json typescript

Last synced: 07 May 2026

https://github.com/leobenkel/laeta

Agnostic service registry with fully typed retrieval

functional-programming registry scala services typed

Last synced: 26 Feb 2026

https://github.com/borisskert/lazy-stream

A lazy stream implementation with some cool methods known from functional languages

functional-programming lazy-loading object-oriented-programming stream-api

Last synced: 22 Jun 2025

https://github.com/laszlokorte/recursion-schemes

Introduction to recursion schemes (WIP)

functional-programming functors recursion-schemes

Last synced: 10 Feb 2026

https://github.com/stackbuilders/functional-programming-patterns

Code snippets used during the presentation

functional-programming java

Last synced: 16 Mar 2025

https://github.com/geektimus/scala-courses

Small project to recap Scala concepts and practice FP with some libraries

functional-programming recap scala

Last synced: 23 Sep 2025

https://github.com/apfohl/go-monadic

A functional programming library for Go

functional-programming go monads

Last synced: 29 Mar 2025

https://github.com/david2261/python_lessons

Rules and examples of various built-in functions in Python

functional-programming generators oop pep python

Last synced: 08 Apr 2026

https://github.com/rshindo/jfunc

Sealed sum types for Java: Option/Either/Result/Try. Minimal, pattern-matching-first APIs.

either functional-programming java library maven option pattern-matching result rop sealed-interfaces try

Last synced: 19 May 2026

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