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/zx80live/gofp

Go for Scala developers

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https://github.com/jaalonso/logica-en-haskell

Desarrollo de la lógica con Haskell.

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https://github.com/mrandl/satsolver

A toy functional and parallel SAT solver implementation in Scala

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https://github.com/jordanblakey/ffjs

Lightweight, modular utility functions for arrays, browser, dates, strings, math, and more.

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https://github.com/drag13/whendo

Small function that can be used instead if-then statement in functional style programming with JavaScript

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https://github.com/ashwinvis/experiments-with-haskell

A journal for the journey to enlightenment

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https://github.com/ramortegui/talks

Talks

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https://github.com/zhibirc/dev-random

:notes: notes/code/thoughts

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QiCore v4.0 Foundation - Mathematical foundation types and core modules for modern applications

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https://github.com/mattdean1/functional-programming

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My Haskell solutions for Project Euler problems.

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[O]Caml compiler

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A performant and flexible reactive programming framework for Dart

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:mag_right: My experiments

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Functional Programming Practice.

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https://github.com/seb-bizeul/fp-flow

Collection of algebraic data types to use with Flow

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https://github.com/sword-smith/hfasto

Implementing a compiler for the fuctional programming language fasto in Haskell

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https://github.com/rubada/learn-python-professionally-part-one

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https://github.com/slowli/curry-chain

Chainable function currying

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PrimeFuncPack Dependency Registry is a library for .NET providing a dependency registrar intended for registering services, including dependency trees built by PrimeFuncPack Dependency, in the .NET dependency injection mechanism.

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

Homework repo for functional programming

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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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https://github.com/paulpdaniels/streamish

A simple Functional Reactive Streaming library

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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/dashkite/joy

The simplicity of Lodash with the functional flair of Rambda.

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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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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/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/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/jferard/yamft

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

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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/zeucxb/alura-functional-js

Curso de javascript funcional da Alura.

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https://github.com/therealkoedev/railway-results

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

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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/fresult/just-reactive-web

My learning path to be a Backend Developer (Spring Boot)

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

Functional design in Java

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https://github.com/lotusirous/functional-pearls

Pearls of Functional Algorithm Design by Richard Bird - ocaml

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https://github.com/teemu/superpowers

Sane map() for unsane Python users

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https://github.com/samuelastech/invoices

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https://github.com/jul10l1r4/contador

Um simples contador de views 🎩

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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/anvell/result-extensions

Additional extensions and imperative bindings for Kotlin's 'Result' type

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https://github.com/vitorribe/erlang_paradigmas

Repositório para atividades relacionadas ao paradigma funcional com o uso da linguagem Erlang.

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https://github.com/juop12/exactas-plp-cnil

Implementaciones de trabajos prácticos para Paradigmas de Lenguajes de Programación - 2do cuatrimestre 2025. TP1: Calculadora Incierta en Haskell con manejo de incertidumbre estadística.

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https://github.com/tdibacco/fp

Functional Programing constructs for Go.

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https://github.com/leavers/fluentmap

A drop-in Python map replacement featuring parallel and batch processing

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https://github.com/afsalthaj/easyalgebird

Big Data: A simple code to make things easy to aggregate a scalding typedpipe

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https://github.com/noxecane/pyfunk

An exploration of functional programming in python

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https://github.com/rolangom/rolads

Monads implementation by @rolangom

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https://github.com/tralahm/scala-by-example

Scala is a tastefully typed language: it is statically typed, but explicit types appear in just the right places. Scala takes powerful features from object-oriented and functional languages, and combines them with a few novel ideas in a beautifully coherent whole. The syntax is so lightweight, and its primitives so expressive, that APIs can be used with virtually no syntactic overhead at all. Examples can be found in standard libraries such as parser combinators and actors. In this sense Scala supports embedded domain-specific languages.

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https://github.com/daggerok/functional-and-reactive-principles-in-scala

Never too late! My learning process for 'Functional Programming Principles in Scala' and 'Principles of Reactive Programming in Scala' courses!

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https://github.com/denisdubochevalier/monad

Implementation of monads in go with generics

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https://github.com/nikvoronin/funsokoban

Minimalistic functional Sokoban (console, no mutable vars). Initially vibe coded with ChatGPT 5. Brought to working condition by Human Being 45.

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A library which calculates a bowling score, written in F#

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https://github.com/mrbrunelli/curso-elixir

Meus estudos da Linguagem Elixir

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https://github.com/wdalmut/curry

An example of currying and partial application

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Structuring data from .txt file to JavaScript object literal using higher-order functions.

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

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https://github.com/exbotanical/heuristics

Useful heuristics, type checks, and validation helpers for JavaScript and TypeScript

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https://github.com/juthawong/jquery-oddeven.js

Simplify Even and Odd HTML DOM Element Stuff , Save Time and Make Coding Easier and Fun. Just for fun

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https://github.com/sharpmiind/erlang-1em

🛠️ Develop and test Erlang applications effortlessly with erlang-1em, simplifying deployment and enhancing productivity for developers.

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https://github.com/marcin-chwedczuk/fpinscala

My solutions to the exercises from "Functional Programming in Scala" book.

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