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: 2026-06-24 00:08:05 UTC
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https://github.com/tkshill/elm-rpg-session

A session manager, ttrpg character builder, and dice roller built with Elm and Lamdera

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Jadwal sholat menggunakan API myquran dan elm language

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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/azzaxy1/dasar-pemrograman-javascript

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https://github.com/deeagirl1/fp-exercises

Functional programming assignments done in Elm

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https://github.com/jungstershark/clojurecipe

ClojuRecipe is a Clojure-based command-line tool that suggests recipes using the Edamam API. It leverages functional programming principles to provide reliable recipe suggestions based on the ingredients you have available.

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My Short Resume using ELM Language 0.18

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A game engine targeted for procedural content coded in a functional style

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https://github.com/adityaathalye/slideware

Where the conference talk slides are...

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https://github.com/wanjinyoo/sml

Functional programinng

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~~ Elm / Browser Game ~~ This is a snake game written in Elm. The language itself is a functional language. I learned many declarative concepts while developing this project. This game was a task in my studies.

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Functional programming in Python using Monadic types

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Closures & Prototypal Inheritance, Object Oriented Programming, Functional Programming, Asynchronous Javascript, Error Handling, Modules

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Everything is streams.

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Generative or property based testing for Ruby

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Make your objects act like procs!

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https://github.com/federicobruzzone/99-ocaml-problems

Implementations of the 99 problems in OCaml.

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

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https://github.com/alex11br/myfsharpsnake

Yet another snake game witten in F#. This one has 2 versions: one that runs in the terminal, and a webapp.

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https://github.com/mode89/fdtrie-js

Persistent data structures with fast diff

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https://github.com/wilberquito/johntheartist

Template John the artist

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https://github.com/olekscode/montecarlointegration

Scala implementation of sequential and parallel Monte Carlo method for computing a deterministic numerical integration of functions

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https://github.com/leostera/restruct

💾 Purely Functional and Compact Data Structures for ReasonML

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https://github.com/erwin-kok/result-monad

Explicit success/failure modeling for Kotlin using a Result monad. Favors explicit control flow and predictable error handling over exceptions.

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https://github.com/nestarz/pipe

TypeScript Pipe Operator with Async Support

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https://github.com/king-prawns/ramda-sfs

Ramda - Start from scratch

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https://github.com/chrisbenincasa/pure-redis

Pure functional Redis protocol implementation using Cats

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Automatic runtime impure ruby methods invocation detection

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https://github.com/tristanpenman/haskell-exercises

Stuff I've worked through while learning Haskell

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cultivate HTML | monadic DOM tree transformer | frontend generation | library & command line tool | Node.js

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a collection of Java 8+ samples

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https://github.com/khaledashrafh/petpal-simulation

The PetPal Simulation is a console-based application that simulates the experience of adopting and taking care of a pet. Users can adopt a pet, feed it, play with it, and check its status. The game tracks the pet's hunger and happiness levels, and it ends if these levels drop to critical values.

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https://github.com/bcherny/mapf

Ergonomic Promise.all

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https://github.com/bennypowers/power-functions

A wee functional library intended half for entertainment, half for personal edification.

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https://github.com/tmccombs/rust-cons

A persistent single-linked list for Rust

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Bot API for customized Telegram alerts, developed for AWS Lambda and API Gateway (https://bot.suddi.io)

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Iterator building blocks for Go, based on Go 1.23+ iterators

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Simple and very modest library written based on functional programming inspired Underscore.js library

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Javascript Programming Essentials

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iterator composition in lua

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

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A bunch of code that I used to learn the topic of functional programming in Scala.

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https://github.com/cryptocraigo/programming-for-kids

🚀 Explore programming with this guide for kids. Discover languages like Python and JavaScript, and start your journey in IT careers today.

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A calculator for arithmetic mathematical expressions, developed from scratch with lexer, parser and evaluater

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https://github.com/keidrun/fantasy-utils

Small utils for Functional Programming with Promise.

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https://github.com/deepakbhalla/java8-new-features

Examples to cover new features added in Java 8

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https://github.com/denisshevchenko/pyerevan2019

Presentation for PYerevan meetup 2019

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Notes on Category Theory, taken while trying to understand the Functional Programming

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Code and exercises of the book Implementing Functional Languages: a tutorial by S.P. Jones and D. Lester

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https://github.com/jaandrle/jaajsu

JavaScript Utils

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Rewritten React redux library [functional principles].

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C++ turing machine in templates

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Array extensions for async and concurrent operations.

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https://github.com/bramirez96/functional-state-no-react-exploration

An exploration into persisting state in a functional programming environment, and how one might implement a simple state-driven rendering engine like React with low overhead and specifically defined "hook" subscriptions. Also includes a custom webpack setup that allows for some really clean project architecture and reduced bundle size.

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https://github.com/shahaf-f-s/multithreading

A python module for creating multithreading processes easily, in a more Pythonic way.

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A Haskell board game where the goal is to flip all black pegs to white, demonstrating recursion and immutability.

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Util library for functional programming in Deno

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Refactoing code using Lambdas, Funtional Programming and Java 8.

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Partial application of functions and method names, supporting placeholder values for positional arguments.

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Assignments done as a part of the course Functional Programming (CS653).

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Some functional programs.

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Second degree polynomial solver.

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