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: 2026-03-31 00:11:49 UTC
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https://github.com/pavelannin/monadic-kotlin

Monadic is a distributed multiplatform Kotlin framework that provides a way to write code from functional programming

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https://github.com/ItsOnkar-dev/SCALER-JAVASCRIPT-CERTIFICATION

Unlock the Power of JavaScript: A Comprehensive Collection of Detailed Modules from Scalar Topics'. This repository serves as a centralized hub for all the notes and concepts I've compiled throughout my journey in mastering JavaScript, ensuring a seamless learning experience.

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https://github.com/darren277/lisp-music-gen

A very basic melody generation tool written in Lisp. There is also Postgres interactivity.

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https://github.com/i-walker/fp-ts-slides

Slides for Typed FP in TS

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

Practiced OOP+FP creating a clone of the 2048 game

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

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Day by day examples of how we can handle error in Kotlin using functional programming

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https://github.com/kubepay/java-cs-to-enterprise

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

A practical functional library for Python Lovers.

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

Intro talk on functional programming

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Example of REST APIs service using http4s library

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https://github.com/riiswa/scala2haskell

A detailed comparison between the programming languages language and Haskell by presenting equivalent code.

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

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First project utilizing JavaScript to create a shopping cart

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https://github.com/nkcoder/bondi

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

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https://github.com/nkcoder/byronbay

Playground for functional programming with Scala

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https://github.com/beyondnetperu/net-functional-sample

A simple sample applying functional programming with dotnet

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Examples of some use cases of the doobie library

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Challenges and Guided Projects from ZTM Python Course

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Safe handling of null and undefined in Typescript and Javascript

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Solutions to the exercises proposed during the courses on RockTheJvm site

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https://github.com/gonturri/tp-tadp-hibrido-objetos-funcional

Trabajo práctico de asignatura técnicas avanzadas de programación de UTN donde el objetivo sumergirse en el paradigma hibrido de objetos y funcional

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Utility for working with streams (iterables).

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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/mahi97/numex-lang

~ The pure functional Interpreter for NUMEX Language Based on Racket

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A simple mail server that stores emails and users. This behaves more like a conventional JSON backend API

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Exercises for Functional Programming in Scala

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Functional programming seems really interesting. Change your imperative mind and take over the world!

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Advent of Code solutions in Elixir.

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https://github.com/filiprd/monet

Online paintings retailer platform implemented in functional Scala 3

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Code snippets used during the presentation

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Refactoring Legacy Code using FP

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PrimeFuncPack Core.Func is a core library set for .NET consisting of functional interfaces (SAM interfaces) and the extensions targeted for use in functional programming. There are both asynchronous (Task and ValueTask based) and synchronous interfaces and the extensions in the set - IAsyncFunc/IAsyncValueFunc and IFunc.

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🚨 Errors as values for Python.

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

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https://github.com/roxtra1/citytowers

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https://github.com/kiwamizamurai/miso-numeron

A Bulls and Cows number guessing game built with Haskell and Miso framework, compiled to WebAssembly

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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

A simple parser combinator library

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https://github.com/rolangom/rolads

Monads implementation by @rolangom

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

A tiny functional composition utility for Python. It allows you to create pipelines of functions using the | operator. Similar to |> (pipe forward) operator in F#.

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https://github.com/lucasamiranda/atividade-1

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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/nthportal/euler-n-scala

Project Euler Solutions (in Scala)

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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/jferard/yamft

YAMFT (Yet another `more-functools`) is another functional library for Python

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https://github.com/moonfloof/CMP6090

Functional Programming - University Coursework/Homework

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https://github.com/tsheporamantso/oop-projects

These are practice projects on JavaScript Object Oriented Programming

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https://github.com/asarkar/fp-course-haskell

Haskell Functional Programming Course

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

IO monad for Svelte

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https://github.com/twilkinson3421/flec-pipe

Brings support for piping to JavaScript, with full TypeScript integration

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https://github.com/zeucxb/alura-functional-js

Curso de javascript funcional da Alura.

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

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

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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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