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: 2026-06-23 00:11:56 UTC
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https://github.com/aravindraj777/streamdream

A dedicated space for mastering Java Stream API with hands-on workouts and exercises. Exploring the art of functional programming through practical examples and challenges.

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https://github.com/kattulib/yay

[IN DEVELOPMENT] Yay is a functional simple http server

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https://github.com/NashTech-Labs/fp-scala

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https://github.com/isaquielfernandes/java-functional-programming

Functional Programming

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https://github.com/firestone82/mazelib-gui

VŠB-TUO - School project in SKJ

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https://github.com/asterinos1/movie-preference-analyzer

INF424 Project 2025: Movie Preference Analyzer. Big Data analytics tool using Apache Spark, developed in Scala. adhering to functional programming rules.

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https://github.com/ronanyeah/ramda-workshop

FAC Workshop - March 2017

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https://github.com/chriso345/pipette

Functional programming for Python

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

Array utilities

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Composite Utilities

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https://github.com/ghivert/papers

All articles published both on Medium or on my blog!

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Simple object to object dot notation converter in Node.js.

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Key utilities that will simplify your work with Javascript

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Learn fxjs based on functional-programming concept

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Option pricing application written in F# and C#.

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Switch as a function

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Code from the Programming Reactive System in Scala course from Edx (EPFL)

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https://github.com/int64ago/mutate

Modify object and return immutable object.

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https://github.com/kanitsharma/monad-fantasy

A collection of monads implemented in javascript

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Lightweight monadic abstraction to "purely" handle side effects in javascript.

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A library which calculates a bowling score, written in Haskell

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TreeDict - Implementation of Dict based on Red Black Tree in Elixir

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Gendo Lang

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Online paintings retailer platform implemented in functional Scala 3

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Core Java 8 Programs

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Lessons from Meta certification

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Scala simple validation library

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Scala course programming exercises from Coursera.

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Kata to practice functional programming with Ramda

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https://github.com/qrailibs/functir

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

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My solutions in F#

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This is an application developed as a challenge for Elixir Ignite Bootcamp, proposed by RocketSeat.

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Functional Programming subject of @CMDA-TT

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https://github.com/mdb/funcy

A minimal Go package providing a few functional utilities.

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https://github.com/jjteoh-thewebdev/html-canvas-snake

Nokia classic Snake game built with HTML Canvas

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https://github.com/sekky61/rust-iterator-aoc

Advent of Code challanges solved using Rust's iterators and functional programming

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Gympass alike API

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Development of bioinformatics tools/software related to P2M2 metabolomics platform activities

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Short talk (pecha kucha style) on functional programming

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'Logical and Functional Programming' & 'Intelligent Systems' practices of courses in University of economics - Varna

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functional cpp at compile time, the compiler turns to the perfectly slow interpreter XD

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https://github.com/eckelon/sanctuarycustomtypesexample

Easy example of how to define custom types with Sanctuary and using them in safe functions

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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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https://github.com/niuiic/fx-flow

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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/przucidlo/serverless-todo

Feature and infrastructure complete serverless app example.

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https://github.com/theosorus/syntacticanalyzer

Build a simple Syntactic Analyzer in Haskell to discover Functional programming

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https://github.com/paudirac/fsharp-introduction-slides

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https://github.com/nthportal/euler-n-scala

Project Euler Solutions (in Scala)

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https://github.com/sftsrv/parz

A simple parser combinator library

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Javascript applications with FP

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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/stackbuilders/refactoring-legacy-code

Refactoring Legacy Code using FP

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Code snippets used during the presentation

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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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Reactive programming for UI (ReactJS mostly)

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Help AI coding agents use Java Optional well in new code and cleanup, without replacing one antipattern with another.

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A blog about programming.

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Porting of the Raise DSL from the Arrow Kt Kotlin library

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Solutions to the exercises proposed during the courses on RockTheJvm site

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Repositório para o curso JavaScript Funcional e Reativo - PENSE como um Dev JS da Cod3r

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

Homework repo for functional programming

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https://github.com/GrahamStrickland/functional_lean

Examples and exercises from "Functional Programming in Lean" - David Thrane Christiansen

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https://github.com/kathleenwest/advancedconsoleapplicationi

This is a very simple windows console application that I completed for a class assignment. It is shown here to illustrate my coding style, structure, and commenting. This example is considered Level 3 – Advanced. Objectives: Events Functional Programming Custom EventArgs IList<> Interface Indexer Delegates Anonymous Methods Event Handlers

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Turin Machine simulation to add one bit to a binary number

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Scala scripts with functional programming in Scala 3 (Cats Effect, ZIO, Skunk etc.)

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The simplicity of Lodash with the functional flair of Rambda.

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https://github.com/sgon4arov/plato

🤖 Enhance coding with Plato, a CLI-compatible AI assistant that streamlines coding tasks while integrating seamlessly with GitHub Copilot.

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https://github.com/phantie/pipe-forward

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