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.

GitHub: https://github.com/topics/functional-programming
Wikipedia: https://en.wikipedia.org/wiki/Functional_programming
Related Topics: oop, declarative-programming, procedural-programming, event-driven-programming,
Last updated: 2026-06-26 00:08:19 UTC
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https://github.com/dominicegginton/functional-reader

A purely functional, dependency-free dependency injection library for TypeScript based on the Reader Monad.

dependency-injection functional-programming typescript

Last synced: 04 Jun 2026

https://github.com/developeromarfaruk/react-authentication

Simple React Authentication Project with Firebase.

bootstrap5 conditional-statements css3 firebase-auth functional-programming hookstate html5 ractjs state-management

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https://github.com/palutz/scalaexercises

Notes, code and worksheets from scala-exercises training (scala-exercises.org)

functional-programming scala

Last synced: 04 Jun 2026

https://github.com/skippia/starter-templates

Production-ready set of templates for smooth DX (Typescript / FP-TS / Nest.js)

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Last synced: 05 Apr 2026

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.

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https://github.com/hareeshreddi/programming-languages-lab

My attempts for the Programming Languages Lab (CS 431 Course) Assignments at IITG

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https://github.com/dzangfan/evason

A lighweight programming language mixing JSON and functional features together

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https://github.com/johnpaulada/maybe

A simple, lightweight, Maybe implementation in JavaScript.

functional-programming maybe monad

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

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

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https://github.com/dhershman1/mondrian-elm

Elm rebuild of my mondrian idea

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https://github.com/lorenzleutgeb/fp

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https://github.com/fkoler/js-advanced-concepts

ZTM - JavaScript The Advanced Concepts

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https://github.com/rcardin/raise-scala-example

direct-style error-handling functional-programming raise scala-3

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https://github.com/slava0135/stg-example

Example Haskell program translated to STG and compiled to C

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

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

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https://github.com/ethowitz/sruby

An increasingly less miniature implementation of Ruby in Scala

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https://github.com/wanjinyoo/csc330

Functional programming

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https://github.com/team846/code-2017

Code base for our 2017 robot - Punk Monkey

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https://github.com/foxfriends/svelte-io

IO monad for Svelte

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https://github.com/martianoff/rules-gala

Bazel rules, a bzlmod extension, and a gazelle plugin for building, testing, and transpiling the GALA language — plus a Bazel module registry that publishes rules_gala.

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https://github.com/martianoff/gala-team

Multi-agent Claude CLI orchestrator -- a Team Lead delegates to Engineers and QAs, reviews their work, and hands you a PR for sign-off. Written in GALA with gala_tui.

agent-orchestration ai-agents anthropic claude claude-ai claude-code cli developer-tools functional-programming gala multi-agent orchestrator tui

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https://github.com/anicolaspp/nsource

A composable library for collections

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Last synced: 22 Apr 2026

https://github.com/beyondnetperu/js-functional

A simple samples applying functional programming with JS

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Last synced: 05 Jun 2026

https://github.com/oelin/hyper-reducer

A generalization of reduce() to arbitrary arity.

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https://github.com/danieljharvey/website-face

Hakyll site for danieljharvey.github.io about mostly Haskell shit at the moment.

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https://github.com/anicolaspp/gnsource

Experimenta Lazy Streams for Go

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https://github.com/tymorrow/elm-dist-demo

Compute Levenshtein distance using dynamic programming in Elm

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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

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https://github.com/kamranikramofficial/portfolio

A clean and responsive personal portfolio website built using HTML, CSS, and JavaScript. It showcases my skills, projects, education, and contact information.

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https://github.com/chriniko13/scala-simple-tutorial

Inspired from official Tour of Scala (https://docs.scala-lang.org/tour/tour-of-scala.html)

functional-programming scala

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https://github.com/martianoff/gala-acp

Transport-neutral Agent Communication Protocol for GALA: content-hash message identity, idempotent dedup, a delivery/liveness FSM, and a generic agent-run contract — with a Claude backend.

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https://github.com/rcardin/functional-portfolio

A toy implementation of a portfolio application that uses functional domain modeling and functional programming

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https://github.com/gregros/naff

Client-side DOM swiss army knife and switchblade.

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https://github.com/maxbarsukov-itmo/functional-programming-0

🧪λ Функциональное программирование: Лабораторная работа №0

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https://github.com/p7g/some-functional-functions

some haskell-wannabe functions in JS (typescript)

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https://github.com/milaziabchenko/vanilla-javascript-playground

JavaScript theory and code snippets, using functional and OOP, prototypes, higher-order array methods, regular expressions, DOM, events, and asynchronous JS

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https://github.com/shybyte/rusty-13-ways-of-looking-at-a-turtle

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

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https://github.com/raiondesu/if-const

New word in javascript conditionals!

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

Utilities for interoperating with Android

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https://github.com/bertrand31/data-structures-javascript

Collection of data structures implemented in a functional fashion in JavaScript

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

Limit the chaos while doing FP in JS

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https://github.com/codeconscious/unique-file-generator-fsharp

Create an arbitrary number of random, unique (by name and content) files.

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https://github.com/sigmasoldi3r/ts-option

Optional values for typescript

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https://github.com/kash1444/py_files

Here are some of my beginner codes to upskill my knowledge in python

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https://github.com/hamidhosen42/functional-banking-website-js

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https://github.com/clifftech123/ts_fun_practice

Collection of small and enjoyable functional programming exercises in TypeScrip

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https://github.com/deepcloudlabs/dcl165-2020-jan-02

Lab Projects studied in the training: DCL-165: Fundamentals of Scala Programming

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https://github.com/alvarogarcia7/2048-kotlin

Practiced OOP+FP creating a clone of the 2048 game

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https://github.com/thautwarm/xylearn

the way to fewer tasks and more convincing products.

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https://github.com/recursivelogic/haskell-bot

Haskell Discord bot for the FP Discord server

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https://github.com/darren277/haskell-blockchain

A simple blockchain written in Haskell along with a Haskell web server for interacting with it along with Postgres interactivity.

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https://github.com/ahlusar1989/spark2sfoverflow

StackOverFlow K-Means Analysis

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https://github.com/constantiner/sibylla

Asynchronous Promise based functional style utilities with full TypeScript support

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https://github.com/mhashim6/kotlinheroes

My solutions for some of KotlinHeroes' problems.

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https://github.com/davidboers/elmeither

Implements the Either declaration in Elm.

either elm functional-programming package

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https://github.com/woutervanbakel/try

Try class for C++

cpp cpp11 functional-programming try

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https://github.com/sash-ua/gen_drift_monad-ts_a4

The simple web application Modeling Genetic drift. Used: Angular4 + Angust+ TypeScript, Angular material, Rollup, D3, HammerJS, SCSS, Gulp, HTML5, CSS3.

angular functional-programming js monad-ts redux redux-store state-machine typescript

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https://github.com/joebobmiles/joebobmiles

My user readme.

front-end functional-programming react typescript web

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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/rtorr/ts-fp

Typescript, eslint-plugin-fp, and vscode example

functional-programming typescript vscode

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https://github.com/qard/potentially

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

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https://github.com/kczulko/astar

A* algorithm

algorithm functional-programming monad-transformers monads referentially-transparent scala

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https://github.com/jaandrle/fpubsub

PubSub pattern library with types support

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https://github.com/sgbasaraner/aoc2018

my advent of code 2018 solutions

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https://github.com/chocolacula/donotcopyanalyser

Roslyn analyzer for prevention of copying certain data

csharp functional-programming roslyn-analyzer

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https://github.com/oniani/purity

A collection of various algorithms and data structures

algorithms data-structures functional-programming haskell

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https://github.com/ethern-myth/javascript

OOP, Arrays and Objects and more

arrays functional-programming javascript oop

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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

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https://github.com/mthadley/aoc2017

Advent of Code 2017

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

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

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https://github.com/nshkrdotcom/gemini_cli_sdk

An Elixir SDK for the Gemini CLI — Build AI-powered applications with Google Gemini via a robust, idiomatic wrapper around the Gemini CLI. Features streaming, structured output, session management, model selection, and OTP supervision tree integration for production-grade Gemini-powered Elixir apps.

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Last synced: 01 May 2026

https://github.com/tricinel/cuddy

An aggregation pipeline built in a functional programming style that lets you search, group, order and transform a collection.

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Last synced: 01 May 2026

https://github.com/agapas/images-switcher

React app to switch images on toggle, on mouse hover or touch and by scrolling the page, made to practice React Hooks.

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Last synced: 01 May 2026

https://github.com/ardywsptr/phpdasar

Materi PHP dasar playlist youtube channel Web Programming Unpas

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https://github.com/running-grass/grass-js

自用的js库

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https://github.com/quacksouls/jaf

Adventures in functional JavaScript

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

Intro talk on functional programming

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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/zhongzc/gparser

A naive parser combinator library

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https://github.com/barcek/aqfr

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

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Last synced: 02 May 2026

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

Refinement and functional value types for Java 8+

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Last synced: 02 May 2026

https://github.com/guibrandt/persistentarray

Persistent array data structure in JS

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Last synced: 09 Jun 2026

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

Vector and complex math for graphics. Unfinished.

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Last synced: 03 May 2026

https://github.com/stuartdaniells/portfolio-website

React

ajax functional-programming react state-management

Last synced: 03 May 2026

https://github.com/didier/functional-programming

Functional Programming subject of @CMDA-TT

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Last synced: 03 May 2026

https://github.com/reshiadavan/catena

simple, lightweight, actor-based distributed blockchain

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Last synced: 03 May 2026

https://github.com/arodriguezfontana/functional-programming-unq

Prácticas realizadas para Programación Funcional de la UNQ.

functional-programming

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https://github.com/armadacore/essentials

TypeScript essentials for explicit error and absence handling - Option, Result, typed Exceptions and optional Callbacks the compiler actually enforces.

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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.

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Last synced: 04 May 2026

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

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

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

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

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https://github.com/plave0/pp

Programming paradigms course material.

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https://github.com/ryanhill1/command-line-checkers

Checkers with AI.

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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.

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Last synced: 06 May 2026