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: 2026-04-02 00:07:52 UTC
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https://github.com/alanrsoares/reprocessing-snake

Snake game written entirely in ReasonML with Reprocessing

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A neural networks library for Clojure

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https://github.com/dragos-tudor/backend-security

Rewritten ASPNET security libraries [functional principles].

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https://github.com/d-exclaimation/common-ts

Zero-dependency TypeScript utilties for Node.js, Deno, Web and anything that powered by V8

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https://github.com/coderynx/functional

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https://github.com/francomelandri/lib-tiny-fp

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Python Library for declarative programming.

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This project was created to learn reactive programming, functional programming and custom api gateway with Spring Cloud Gateway

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Functional lab Ramda (https://ramdajs.com) implements in Go.

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Jio is a powerful Java library designed to simplify and enhance input/output operations by leveraging the power of expressions and functions

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https://github.com/rurumimic/haskell

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https://github.com/alexhmelevski/ahfuture

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Course notes for the JavaScript course provided by freeCodeCamp entitled 'JavaScript Algorithms and Data Structures.' Notes from activites and exercises will be pushed to this repo to serve as a 'bank' of resources and future reference.

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https://github.com/adhityaramadhanus/gope

gope (go efpe), functional programming helper in go (for learning purpose)

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https://github.com/bsoptei/photonix

Solutions for functional optics.

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🎮 Fun Math Game in C++ ➗✖️➕➖ Challenge yourself with math problems, track your score, and level up! 🏆

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Extensible rest api for authentication with Mojang and similar services.

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Functional Reactive Programming with BaconJS 🥓

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The library that solves all your data generation problem !

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https://github.com/geirolz/fp-in-a-nutshell

Functional Programming principles in a nutshell

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https://github.com/marcuwynu23/sclib

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https://github.com/tttardigrado/goadt

Algebraic Data Types generator for the Go programming language

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https://github.com/offensiveedge/colors-le

Instantly extract and analyze colors from CSS, HTML, and JavaScript with precision

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https://github.com/manojpawar94/go-lang-fundamental-examples

The repository has the programs on the fundamental concept of the Go Language programming. It covers variable declaration, conditional block, loop, functions, a data structure(array and slice), goroutines, struct, pointers, error handling and file handling.

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https://github.com/brettm12345/tailwind-generator

A cli for managing your tailwind setup complete with type generation. WIP

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https://github.com/ramortegui/talks

Talks

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Solutions for http://adventofcode.com/ 2015 (implemented in functional Scala)

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https://github.com/henryhale/render-functions

♦ A basic implementation of render functions as used in modern JavaScript Frameworks.

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https://github.com/strangepleasures/matchmetender

Pattern matching for Java

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https://github.com/ouerghi01/elixir-99-functional-mastery

A personal journey to master functional programming by solving the classic L-99 problems. No tutorials, no videos—just pure problem-solving and learning.

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https://github.com/shanoaice/bethlehem

A minimal functional programming library for JavaScript.

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https://github.com/dburriss/elevatedexamples

I contain examples in C# and F# of functional programming.

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https://github.com/kalongn/cse-216

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https://github.com/therealklanni/key-mapper

Tiny utility for deeply mapping object keys

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https://github.com/malinatrash/funky

Powerful library for functional programming in Go with modern generics.

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https://github.com/deepcloudlabs/dcl113-2021-sep-16

DCL-113: Functional Programming in C++17

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https://github.com/sagnikc395/parso

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https://github.com/oelin/favl

A purely functional AVL tree implementation in JavaScript.

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https://github.com/delonnewman/atomjs

Clojure Atoms for Javascript. Shared, synchronous, independent state. A fork of https://github.com/cjohansen/js-atom.

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https://github.com/00nevo/uebung-exercises-in-functional-languages

What i am reading regarding functional programming.

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https://github.com/zahidul-islam/ts-fun

Implementing lodash library in typescript for fun :-)

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https://github.com/skarab42/result

Provides a robust and type-safe way to handle success and failure outcomes in TypeScript, utilizing symbolic indexing for clear result differentiation.

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https://github.com/codecop/fizzbuzz-with-nothing-kata

Exercise to practice working with functions.

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📊 RxJS operators for reactive statistics

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📊 RxJS implementation of stochastic gradient descent (SGD) (classifier).

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