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: 2026-06-30 00:12:00 UTC
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https://github.com/jccampagne/stuff

functional-programming haskell learning-by-doing

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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/aajafry/custom-video

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https://github.com/thautwarm/xylearn

the way to fewer tasks and more convincing products.

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StackOverFlow K-Means Analysis

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https://github.com/davidboers/elmeither

Implements the Either declaration in Elm.

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https://github.com/jumpn/utils-promise

Promise Utilities

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https://github.com/joebobmiles/joebobmiles

My user readme.

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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

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https://github.com/nzrsky/funkobjc

Functional and typed extensions for ObjC 🚀

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

OOP, Arrays and Objects and more

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Ocaml interpreter (Sedlex tokenizer + Menhir parser) of modularized classes with two means of inheritance.

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

Introduction to Lodash/fp

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

Intro talk on functional programming

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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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https://github.com/meragix/calx

⏱️ A lightweight, immutable, and fully tree-shakeable date manipulation library for Dart & Flutter. Functional-first core with zero-allocation opt-in extensions.

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https://github.com/wdalmut/kata-example-1

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Um projeto base em OpenJFX para desenhar polígonos na tela e permitir a implementação de algumas funções para descobrir o tipo de cada polígono e calcular seu perímetro usando Stream.map() e flatMap()

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https://github.com/cgyurgyik/caml-pox

Epidemic simulation game.

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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/asarkar/hackerrank-fp-haskell

Functional Programming code challenges on HackerRank

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https://github.com/paulpdaniels/streamish

A simple Functional Reactive Streaming library

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

Homework repo for functional programming

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

A practical functional library for Python Lovers.

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https://github.com/rcardin/doobie-playground

Examples of some use cases of the doobie library

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https://github.com/rcardin/raise4s

Porting of the Raise DSL from the Arrow Kt Kotlin library

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https://github.com/mariankapisinsky/FIT-VUT-NNET

Some of the school assignments from my master's degree study.

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https://github.com/r8vnhill/dibs

Curso sobre diseño e implementación de bibliotecas de software. Incluye sistemas de construcción, testing, OOP, genéricos, programación funcional y más, con Kotlin y Docusaurus.

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https://github.com/faylina/spellbound-treasures

First project utilizing JavaScript to create a shopping cart

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https://github.com/markehost/javascript-exercises

Coding exercises in JavaScript.

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https://github.com/vtramo/java-problems

Solutions for various types of medium-to-challenging level problems.

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https://github.com/alvarogarcia7/numerology-kata-java

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https://github.com/habu-kagumba/functional-programming-js

Javascript applications with FP

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https://github.com/justmegaara/functional-programming.course

This is a repository with an implementation of Conway's Game of Life. The game itself is implemented using several stacks in C#, F# and TypeScript. The purpose behind it is to have a small real-world example to show functional principles and features. Moreover, the repository is organized as 3 different projects an a small book/course in markdown to describe functional programming and reactive programming.

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https://github.com/sftsrv/parz

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Project Euler Solutions (in Scala)

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Build a simple Syntactic Analyzer in Haskell to discover Functional programming

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https://github.com/unosd/unofs

UnoFS is a purely functional semantic file system implemented in F#

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https://github.com/krishnalagad/learn-cpp-with-me

Repository contains C Programs, C++ Programs from difficulty level beginning to advanced. It also contains Modern C++ version 11, 14 and 17 programs.

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Advanced Languages and Programming Techniques

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Keepcoding Master Mobile Engineering Bootcamp - iOS Advanced - Functional programming exercise

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Functional Programming - University Coursework/Homework

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https://github.com/luizcalaca/ts-node-joi-api

Typescript API with Joi validations, Express.js and MySQL. The project has the main branch to show the solutions with functions and the change-oop-api-ts to show with Object oriented programming.

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https://github.com/saidali-ibn-zafar/hard-parts-of-functional-js-fundamentals

Explore the increasingly popular paradigm of functional programming in JavaScript! You’ll learn how to wield and manipulate functions to develop more readable, maintainable and manageable codebases. You’ll go under the hood of powerful techniques like: Higher Order Functions, Function Composition, Pure Functions, and Immutability of State.

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https://github.com/lukemorales/ignite.gympass-api

Gympass alike API

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https://github.com/filipondios/something

something functional

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Programming exams for B4B36FUP Functional Programming

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Monads for easy and compact error handling with Railway Oriented Programming.

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https://github.com/skippia/twin-scanner-cli

Find duplicate files in multiple folder(s) scanning .txt or/and .torrent files and depending on the selected mode (readonly: true | false) get information about duplicated files /+ extract them into new folders

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https://github.com/birdmod/adventofcode2017

My solutions in F#

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https://github.com/sourcevault/flyd-group-within

buffer flyd stream values within x millisecond

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https://github.com/qrailibs/functir

✨ Functional programming library for JavaScript. Fully type-safe.

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https://github.com/sevmardi/functional-design-in-java

Functional design in Java

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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/rvarago/cpp_optional_extras

*EXPERIMENTAL* A handful of C++ utilities I wish std::optional<T> had

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https://github.com/samuelastech/invoices

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https://github.com/jul10l1r4/contador

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https://github.com/sophiecollard/variance

Simple examples to illustrate the differences between invariance, covariance and contravariance in Scala

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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

css-animations css-flexbox css-grid functional-programming html-css-javascript localstorage-api multi-page-application oop responsive ui-design

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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.

css3 functional-programming html5 javascript

Last synced: 06 May 2026