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/a248/jdbcaesar

Conquer the verbosity of plain JDBC.

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Last synced: 13 Oct 2025

https://github.com/john-cd/deduplicator

a tool to identify duplicate files

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https://github.com/smachave/some

`unless var.nil?` as a block

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https://github.com/kdungs/go-result

Result types for Go; because (T, error) can be considered a ✨ monad ✨.

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https://github.com/tomsquest/mediathequeroubaix.py

Python CLI for the library of Roubaix (Médiathèque Roubaix)

functional-programming

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https://github.com/jericirenej/typescript-monads-chaining

Chain callbacks in Typescript with integrated nullish checks and strong typing using the monad design pattern

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https://github.com/rxtoolkit/stt-ibm

👂 An RxJS operator for real-time speech-to-text (STT/S2T) streaming using the IBM Watson.

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https://github.com/sidmishraw/fjava

FJava, Java for functional programming

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https://github.com/thma/clean-architecture-with-functions

Clean Architecture in Haskell. Using higher order functions for 'dependency injection'

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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/michalzalecki/monadsjs

Ready to use monads in examples

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https://github.com/matbesancon/pagerank

A functional, parallel PageRank implementation in Scala

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https://github.com/rjrudman/tslinq

ES5 compatible implementation of LINQ and lazily executed enumerables for typescript.

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https://github.com/etacassiopeia/datachefanalytics

ZIO, One Monad to rule them all !!!

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https://github.com/leejss/funtional-ts

It's a functional programming playground.

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https://github.com/memowe/aoc2023

My advent of code 2023 solutions

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https://github.com/dyalog/presentations

Presentation materials

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https://github.com/ladroid/mathelogos

The Mathelogos library is designed to introduce functional programming constructs to Rust.

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https://github.com/shahabganji/funx

A robust and useful library to use functional programming in C#

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https://github.com/vgalvoso/phunctional-php

A functional programming PHP framework.

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https://github.com/skulltech/programming-languages-assignments

Assignments and code written for course COL226 (Programming Languages) of IIT Delhi.

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https://github.com/patrixr/capacitor.js

Functional utility method: a capacitor concept

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https://github.com/abengl/ntt-project1

Primer projecto en Java para el Bootcamp Tech Girls de NTT Data Perú. Inicia el desarrollo de una aplicación para el manejo de cuentas bancarias de usuarios.

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https://github.com/fresult/task-mgmt

My Reactive Programming learning using Spring Boot Webflux, and Kotlin.

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https://github.com/paudirac/cassiopeia

A turtle, what else?

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https://github.com/firaja/identicon

Elixir implementation of Identicon

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https://github.com/gailo22/myproject

sample java project

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https://github.com/n1nj4t4nuk1/storable-functions.js

λ Storable and executable functions using array based simple syntax and functional programming.

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https://github.com/joaocarvoli/scala-course

A 6-week course from École Polytechnique Fédérale de Lausanne (EPFL) about the fundamentals of scala functional programming language

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Training Scala 💥💥

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https://github.com/joao-coimbra/failcraft

Functional error handling for TypeScript — Either-based error handling with full type inference, chainable transforms, and async support

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https://github.com/khc-zhihao/packhouse

Packhouse is a function wrapper based on the concept of functional programming

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https://github.com/almayor/ft_turing

A Turing Machine simulator written in Haskell

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https://github.com/zerotohero-dev/delgado

Delgado is your functional handyman.

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https://github.com/abdull121/javascript-games-project

JavaScript-Games

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Functional Programming basics in Javascript workshop for Iterate Hackerspace

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https://github.com/federicobruzzone/setup-ocaml-project-with-dune

This repository provides a basic setup for an OCaml project with using Dune as the build system. It aims to provide a simple and straightforward structure for your OCaml project, allowing you to focus on writing code without the complexities of a build system.

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https://github.com/mahmoudhanafy/scala-specialization

my solutions to assignments

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https://github.com/hernancerm/closures

My understanding of closures

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https://github.com/wislertt/functional-programming-with-python

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https://github.com/jin-sungdae/javastream

Functional Programming in Java && Stream

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https://github.com/albertllousas/auctions-microservice

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🛠️ RxJS operators for very common data transformation tasks

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https://github.com/gardncl/functional_programming_javascript

All the exercises from http://reactivex.io/learnrx/

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https://github.com/unacorbatanegra/tie_fp

FP opinionated in Flutter & Dart

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https://github.com/hwang-fu/rv32emu

Fully emulating the RISC-V Base Integer Instruction Set (WIP)

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https://github.com/soloalex1/functional-snake

A simple snake game to learn and practice functional programming. Testing a tutorial from YouTube.

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https://github.com/mainro/cyclotron-std

Python standard library drivers and components for Cyclotron

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https://github.com/zkfmapf123/go-js-utils

Using js method in golang

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https://github.com/pzuehlke/hutton

Contains solutions to all of the exercises in and some scripts related to the book: Hutton, G. — Programming in Haskell (2nd ed.)

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https://github.com/joaopaulopmedeiros/learning-functional-programming

Repository for learning functional programming with JS.

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https://github.com/ernyoke/snake-js

Terminal based snake written in functional style.

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https://github.com/alejogs4/church-encoding-javascript

Church encoding to represent typical programming structures on Javascript

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https://github.com/joelburget/hazel

functional-programming language

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https://github.com/jaypmorgan/dfp

A suite of functional tools for all your functional programming

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https://github.com/karmakaze/monadts

Fun with flatMap - Now I know My ADTs (or How to Learn Monads by Accident)

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https://github.com/dsoaress/node-clean-arch-with-fp

POC of Clean Architecture with a functional programming approach

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https://github.com/maximkrouk/swift-udf-tutorial

UDF Tutorial for Swift

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https://github.com/davidgfolch/shop

Customer & order management

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https://github.com/pavulonx/faker

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https://github.com/atticuskuhn/typescript-lens

lens library in typescript

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https://github.com/akabe/ocaml-js-boilerplate

A template repository for OCaml and JavaScript

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https://github.com/frootlab/hup

Multi-purpose Python library

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https://github.com/savaged/funinjection

Some fun with function injection in C#

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https://github.com/rurumimic/haskell

functional programming language

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https://github.com/henriquelimas/sample-feed-pwa

🗞 A sample feed pwa

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https://github.com/shlinkio/data-manipulation

Userland implementations of some data manipulation helpers extracted from ramda

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https://github.com/horothesun/advent-of-code-2024

Advent of Code 2024 with Scala 3 and the FP Typelevel stack.

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https://github.com/ayrtonbsouza/elixir-fundamentals-list-length-challenge

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

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https://github.com/alizabatool4268/personal-library-manager-cli

__This is a command line based library management system. Built using higher versions of python

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https://github.com/asbhogal/time-tracking-dashboard

A time tracking dashboard created as for a Frontend Mentor challenge, coded using vanilla HTML5, CSS3 (SCSS) and JS.

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https://github.com/eilvelia/contravariant

Contravariant functors in JavaScript + Flow with correct type inference

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https://github.com/swissmanu/react-rxjs-typescript

An experiment to implement a React user interface using TypeScript that leverages RxJS.

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https://github.com/rsachdeva/reactnd-mobile-flashcards

React Native based Deck and Cards App from Scratch with Quiz, Scoring, Seeing Answers Support

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https://github.com/alseinx/alsein.algorithms

Some algorithm features in addition to LINQ.

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https://github.com/helins/fn.cpp

Pass around c++ fns and methods, get performance

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https://github.com/mmzk1526/haskell-blockchain-tutorial

A simple blockchain toy example

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https://github.com/willguimont/pipeline

Lightweight pipeline library

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https://github.com/jvrieger/245programminglanguages

BMC CMSC245 Principles of Programming Languages Assignments and Labs with Geoffrey Towel

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https://github.com/carlosrberto/lazy-list

LazyList implements map, filter and reduce in JavaScript Arrays with lazy evaluation.

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https://github.com/xiel/outer-hooks

Powerful and composable hooks that work in Node & Browser.

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https://github.com/gustavodiasag/simpler

Interpreter for a functional, expression-based programming language

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https://github.com/ist-dsi/scala-keystone-client

A pure functional Scala client for Openstack Keystone implemented using Http4s client.

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https://github.com/itemconsulting/enonic-wizardry

Functional utility library for Enonic XP

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

:notes: notes/code/thoughts

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https://github.com/abengl/ntt-project2-customerms

This microservice is part of the second project deliverable for the NTT Data Tech Girls program. It provides a CRUD API for managing customer banking management.

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