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: 2026-04-06 00:11:36 UTC
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https://github.com/prabhakar-naik/python-core

learn python core concepts

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https://github.com/endygamedev/learn-haskell

λ Haskell and Lambda Calculus.

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Last synced: 17 Jun 2025

https://github.com/mooseman/minifpl

A lexer (and soon a parser and interpreter) for a small functional programming language. Public domain.

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https://github.com/jharrilim/single-expression-shunting-yard-interpreter

shunting yard interpreter written in a single expression

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https://github.com/michalspano/func-prog

My take on Functional Programming.

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https://github.com/gvoz-dev/fprog

Functional programming

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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/murat/elixir-practices

Some Elixir practices for the newbies...

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

Delgado is your functional handyman.

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https://github.com/b-gran/promise-plumbing

Functional, Promise-based control flow primitives inspired by async

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

🗞 A sample feed pwa

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https://github.com/pfpack/pfpack-core-unit

PrimeFuncPack Core.Unit is a core library for .NET consisting of Unit type targeted for use in functional programming. The Core.Unit is shipped as a part of PrimeFuncPack Core - a functional programming framework for .NET

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https://github.com/mehmet-github06/find-country

An application where you can find the country information you want

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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/albertllousas/auctions-microservice

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

Some algorithm features in addition to LINQ.

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https://github.com/davidgfolch/spring-mongo-reactive

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https://github.com/palutz/monads-gym

Stretching the muscles with monads...

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https://github.com/singuerinc/slot-machine

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https://github.com/rcardin/reader-monad

A simple implementation of the Reader monad

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https://github.com/bertrand31/pandore

📦 The functional files manipulation library Scala was missing

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https://github.com/neshkeev/avaj

Haskell influenced Category Theory patterns implemented in Java

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https://github.com/tripolskypetr/functools-kit

A library with helpers for react-declarative app backend development

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https://github.com/davidmarne/functional_flutter

Tools for composing flutter widget trees in a functional manner.

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https://github.com/dracotmolver/quartz-js

QuartzJS - A set of useful small functions

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

Chainable function currying

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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/duruii/course-ucb-cs61a-spring2021

🪁Structure and Interpretation of Computer Programs, delivered by Paul N. Hilfinger & Pamela Fox

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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/arindas/lazy-prime-sieve

Lazy Sieve of Eratosthenes for infinitely generating primes lazily in Rust.

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https://github.com/vitorluizc/immutable-collection

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https://github.com/kshirish/reactivexio

Learning functional programming concepts from `http://reactivex.io/learnrx/`

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

A simple blockchain toy example

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https://github.com/itsdanieldk/fio-chat

💜 Scalable and feature-rich chat server and client built with FIO, designed for high-performance asynchronous communication

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https://github.com/willguimont/pipeline

Lightweight pipeline library

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https://github.com/markhaehnel/resolver-pipe

A functional pipe with validators for TypeScript

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https://github.com/astrolabsoftware/astrolabsoftware.github.io

Website for AstroLab

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https://github.com/ist-dsi/scala-openstack-common-clients

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https://github.com/skykanin/coding-test

Online coding test

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

Functional utility library for Enonic XP

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https://github.com/dhodgson615/lintomatic

A basic linter for Python projects written in Haskell

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https://github.com/zx80live/gofp

Go for Scala developers

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https://github.com/akinozgen/alternatives

Some alternative implementations for common interfaces, classes etc.

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https://github.com/junaidzm13/sigma-calculus-interpreter

A sigma calculus based interpreter implemented using Haskell and related underlying programming concepts.

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https://github.com/a248/jdbcaesar

Conquer the verbosity of plain JDBC.

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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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https://github.com/michalzalecki/monadsjs

Ready to use monads in examples

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https://github.com/psygo/haskell_lab

An environment for accelerated learning of Haskell.

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https://github.com/vickvey/complex_numbers

I have implemented Complex Numbers and some of the basic operations on them.

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https://github.com/firaja/identicon

Elixir implementation of Identicon

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https://github.com/valentindeaconu/terraform-provider-func

Supercharge Terraform with functional programming. 🚀

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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/rudini/node_ports_adapters

Ports and adapter implementation of a restaurant reservation

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https://github.com/mnikander/cpp_sequence

Sequence pipelines in C++. A functional programming-inspired approach to processing data with map, filter, reduce, and more.

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Last synced: 19 Oct 2025

https://github.com/mariomarton/racket-sudoku-solver

Sudoku solver in Racket for any board size (including hexadoku & larger), built without constraint solvers or mutations. It solves any legal puzzle and detects invalid ones.

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Last synced: 15 Mar 2026

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/mstniy/computed.dart

A performant and flexible reactive programming framework for Dart

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https://github.com/critocrito/curry

Named curry functions for fixed arities.

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

Desarrollo de la lógica con Haskell.

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https://github.com/filipbolt/hackerrank_functional

Haskell solutions hackerrank functional challenges

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https://github.com/dnlowman/result-ts

A minimal Result type for TypeScript.

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https://github.com/yurrriq/vfp-in-agda

:book: Verified Functional Programming in Agda

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https://github.com/ruferdz/cards

A simple card game to learn Elixir programming language 🃏

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https://github.com/prrromanssss/thebasicsofcs-labs

Laboratory works for the basics of computer science for MSTU

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https://github.com/helton/labs

:mag_right: My experiments

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

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Last synced: 25 Feb 2026

https://github.com/steventimes/fpstreams

functional programming library for Python

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Last synced: 08 Feb 2026

https://github.com/pyccel/lampy

Extension of Pyccel for functional programming

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Last synced: 26 Feb 2026

https://github.com/perkss/perkss.github.io

My fun super interesting blog take a read

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https://github.com/davestewart/collection-fns

A set of flexible, type-safe functions to manipulate arrays of models

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Last synced: 11 Feb 2026

https://github.com/kaliv0/fumus

Functional musings in Python

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https://github.com/rxtoolkit/socketio

🚰 RxJS operators for working with Socket.io (v4 or lower) servers

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https://github.com/olemb/livemidi

MIDI messages for Python

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Last synced: 14 Feb 2026

https://github.com/airsequel/airscript

[WIP] A scripting language for spreadsheet formulas, CLI tools, ETL pipelines

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Last synced: 19 Mar 2026

https://github.com/monashcoding/intro-to-haskell

Introduction to Haskell Workshop

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https://github.com/jharrilim/adventofcode2019

Advent of Code 2019

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https://github.com/dyalog/presentations

Presentation materials

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https://github.com/mystpi/spark

Compile-to-JS language built in Gleam.

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

Exercises in Agda

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https://github.com/fantiga/github-query-react-ts

This is a demo of implementing GitHub repository search functionality with React and the GitHub REST API.

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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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Last synced: 04 Apr 2026

https://github.com/samedfft2634/qr_generator

QR generator working with API. It is a practice to improve my skills in JavaScript

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https://github.com/ohmic-guy/mnemosyne

An experimental Python library exploring persistent and versioned data structures.

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https://github.com/p2m2/p2m2tools

Development of bioinformatics tools/software related to P2M2 metabolomics platform activities

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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/lmarzocchetti/wangtiles-ml

Wang Tiles generator in Ocaml

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https://github.com/denieler/angular-sequence-events

Sequential code and chained execution of events, handlers, etc.

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https://github.com/lukemorales/ignite.gympass-api

Gympass alike API

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https://github.com/derektypist/build-a-spreadsheet

In this spreadsheet application project, learn about parsing and evaluating mathematical expressions, implementing spreadsheet functions, handling cell references, and creating interactive web interfaces.

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