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: 2025-11-16 00:11:48 UTC
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https://github.com/mhenderson/squarelimit

Escher's Square Limit in R with funcgeo.

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

A practical functional library for Python Lovers.

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https://github.com/blissd/scala-redbook

Exercises for Functional Programming in Scala

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https://github.com/shogunpurple/elmcohol

App that allows you to view information about alcohol of the world - Type in and find a country or city from the search bar and see all the drinks from there.

elm fp functional-programming

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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.

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https://github.com/stereobooster/zipper

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

ZTM - JavaScript The Advanced Concepts

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https://github.com/clitetailor/tokenize-monster

Yet another powerful tokenizer in js.

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https://github.com/dhruvsrikanth/climbingeverestgame

Climb the treacherous Mount Everest in this exciting text-based adventure game! A game through which you can experience a pure (Haskell) climb!

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My implementation of the Peg Thing game in Clojure for the Brave and True

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Tutorial Series From (https://www.youtube.com/@webvv)

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Homeworks for math logic course in ITMO University

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This repository acts as standalone or upcoming book for educating interested Computer Science students to Data Structures, Algoritms, Design Pattersn on Java 8.

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https://github.com/unmango/go

Random Go crap

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https://github.com/jakubriegel/geffe-generator

Functional style implemented Geffe cryptographic stream generator

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Resolve fizzbuzz problem with a functional programming approach

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https://github.com/bmmunga/terminal-screen

Program reads a binary encoded stream of bytes supplied as input and generates a graphical representation of the bytes in a terminal window.

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https://github.com/davidboers/elmeither

Implements the Either declaration in Elm.

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https://github.com/dotoscat/pyfunstream

Allow to chain functions with the | operator through streams

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https://github.com/max-sir/kotlintraining_koans

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

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https://github.com/lit-forest/pure-fantasy

常用的monad集合

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https://github.com/numq/fn

Golang functional components

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https://github.com/mariajbp/cp1920

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https://github.com/lukehansell/redux-token-passing-example

using Redux and Auth0 together with Zeit Next.js

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https://github.com/skippia/fp-playground

Explore opportunities of functional programming through the prism of typescript and `fp-ts`

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SQLTemplate implements a fluent interface for executing SQL statements

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Elixir workshop for Lambdup conference

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https://github.com/adzz/ex-ample

Repo for Elixir By Example - practical examples of Elixir code

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https://github.com/armadacore/fnt

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

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Lessons from Meta certification

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Linear Algebra refresh using fsharp

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

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Functional Programming in Scala

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https://github.com/alessandrokuz/proverbio

Python program to split a proverb in even and odd characters (and to merge them back together).

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🎁 A monad transformer to wrap any Try[A] with another Monad and conveniently operate on the nested result

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Haskell, Erlang, Reactive functional programming

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Functional Programming using Dart language

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https://github.com/saber2pr/ts-monad

TS-Monad inspired from Haskell-Monad.

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https://github.com/json2d/validium

a functional library for creating validators in Python

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https://github.com/marcbudd/functionalfibuautomat

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Jobs Algorithm

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https://github.com/lpld/func-prog-scala

Assignments from the book "Functional programming in Scala": https://www.manning.com/books/functional-programming-in-scala

functional-programming scala

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https://github.com/artificial-sapience/clearflow

Correctness-first orchestration for emergent AI. Type-safe, deeply immutable, 100% code coverage.

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https://github.com/supermacro/hangman

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https://github.com/geekeast/intro-to-lodash-fp

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https://github.com/reubano/devcraft-workshop

Materials for the DevCraft workshop on stream processing

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https://github.com/geektimus/haskell-challenges

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https://github.com/mrseanryan/scala-learning-public

Links, notes and experiments related to the Scala Coursera course. Does NOT include course assignments!

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https://github.com/agapas/react-carousel

Image carousel made with React and TypeScript

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

A functional programming library for Go

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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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Scala course programming exercises from Coursera.

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https://github.com/milaziabchenko/custom-music-player-with-dropdown-select

Custom music player coupled with custom-made dropdown select, built with HTML, CSS, and JavaScript, combining FP and OOP approaches, and using the Web Audio API functionality

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https://github.com/milaziabchenko/minimo-website

Stylish photodiary | lifestyle | travel multi-page website created with modern features of HTML5, CSS3, and JavaScript, combining functional programming and OOP approaches

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https://github.com/0xdsqr/ts-match

Type-safe pattern matching for TypeScript with exhaustiveness checking and zero dependencies

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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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Beginner's guide to Haskell

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https://github.com/wdalmut/fn

An example of how a group of tiny functions can finally resolve complex problems

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https://github.com/lordgoatius/comonad_rust

Attempt at encoding comonadic effects in Rust (inspired by @SheafificationOfG )

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https://github.com/victorlga/functional-etl

A functional ETL pipeline in OCaml that processes order data from CSV files hosted online using map, reduce, and filter, producing aggregated results and storing into a database.

etl functional-programming ocaml pipeline

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