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: 2026-03-27 00:12:01 UTC
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https://github.com/axionbuster/varcomp

Variadic function composition (without hacks)

design-patterns functional-programming haskell

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https://github.com/barcek/aqfr

run deeper | multipath piping | command-line tool | Elixir + Mix, w/ POSIX shell

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

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https://github.com/apulbere/lagos

a collection of Java 8+ samples

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https://github.com/harlockofficial/functionalprogrammingtutoringmaterial

All material that will be used during the tutoring sessions for the Functional Programming module of the Programming Methodologies course

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https://github.com/rajasegar/effpy

My own Functional Programming utilities in Javascript

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https://github.com/surjoyday/functional-procedural-objectoriented-programming

Code examples illustrating different programming paradigms: Object-Oriented Programming (OOP), Procedural Programming (PP), and Functional Programming (FP).

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Ingenieria en Informatica - UMSS

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DeBruijn in Haskell

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https://github.com/turbaszek/haskell-labs

Notes from lectures and Haskell code from labs.

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https://github.com/prncss-xyz/flua

iterator composition in lua

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Automatic runtime impure ruby methods invocation detection

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https://github.com/zhongzc/gparser

A naive parser combinator library

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https://github.com/rcardin/road-to-fp-in-scala

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

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

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https://github.com/aayushyadavz/keeper-app-react

Created a Keeper App using React in which we can add our notes.

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

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Array extensions for async and concurrent operations.

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https://github.com/denisshevchenko/pyerevan2019

Presentation for PYerevan meetup 2019

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https://github.com/jaandrle/jaajsu

JavaScript Utils

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https://github.com/jiriklepl/cpp-turing-machine-in-templates

C++ turing machine in templates

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https://github.com/olaven/fun

Util library for functional programming in Deno

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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/salespaulo/poc-refactory

Refactoing code using Lambdas, Funtional Programming and Java 8.

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https://github.com/lpld/func-prog-scala

Assignments from the book "Functional programming in Scala": https://www.manning.com/books/functional-programming-in-scala

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https://github.com/taimoorzaeem/functional-stuff

Some functional programs.

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https://github.com/m1kc3b/explicitly

A TypeScript library inspired by Rust’s Option<T> and Result<T, E>, providing safe and expressive error handling. Avoid null, undefined, and exceptions with explicit, functional-style handling of missing values and errors. 🚀

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https://github.com/hugojosefson/fns

Utility functions.

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https://github.com/shivansh/fp-assignments

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

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https://github.com/stereobooster/zipper

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https://github.com/supermacro/hangman

Hangman game

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https://github.com/mertturkmenoglu/f-sharp-examples

F# Language Examples

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https://github.com/xaaria/javastreams_sandbox

Just playing around with Java 8+ Streams

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https://github.com/stefantagarski/np

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Combination of object-oriented and functional programming in one concise, high-level language

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https://github.com/leodiegues/unwrappy

Yet another Rust-inspired Result and Option ergonomics brought to Python, enabling safe, expressive error handling with errors as values.

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https://github.com/xfali/stream

A sequence of data values supporting sequential aggregate operations.

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https://github.com/markjamesbutler/functional-programming-principles-scala

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https://github.com/reubano/devcraft-workshop

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https://github.com/mqtth3w/paradigmilinguaggianalisidati-unipr

Paradigms and languages for data analysis (Haskell, Python, Rust). 2024.

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https://github.com/georg-wolflein/impartial

A lightweight extension of functools.partial.

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https://github.com/imteekay/jobs-algorithm

Jobs Algorithm

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https://github.com/geekeast/intro-to-lodash-fp

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https://github.com/geektimus/haskell-challenges

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https://github.com/marcbudd/functionalfibuautomat

Projekt für Vorlesung "Moderne Programmierkonzepte"

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https://github.com/wayneseymour/learnyouahaskell

Trying to learn Haskell again :)

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Small project to recap Scala concepts and practice FP with some libraries

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Introduction to functional programming in Elixir

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Finance Management App A powerful and intuitive finance management app built with Rails 7 and Bootstrap 5.

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https://github.com/apfohl/go-monadic

A functional programming library for Go

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https://github.com/foxfriends/raiser

Raise multiple errors without throwing

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https://github.com/pmuens/htdp

How to Design Programs

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https://github.com/oelin/hyper-reducer

A generalization of reduce() to arbitrary arity.

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https://github.com/asarkar/fp-scala

Functional Programming in Scala

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https://github.com/lamdalib/skachuler

Functional job scheduling library for Scala3

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https://github.com/himal28924/pcl

PCL course from VIA University

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https://github.com/rtorr/ts-fp

Typescript, eslint-plugin-fp, and vscode example

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https://github.com/amboxer21/custompythondecorators

Custom Python decorators I wrote to restrict method arguments to a specific type. I also added an encrypt/decrypt decorator as well.

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https://github.com/g0mb4/funcpp

Functional C++, it's fun.

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https://github.com/c-akhil/java-interview-guide

A comprehensive repository for Java and Spring Boot interview preparation. This repository includes detailed questions and answers covering Core Java Concepts, OOP, Collections & Data Structures, Java 8 & Functional Programming, Spring Boot & Microservices, and Spring Boot Security & Optimization

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https://github.com/mrgravity817/ruckpal

Mini Paypal clone, written in Rust for practicing domain modeling with clean architecture

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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/plave0/pp

Programming paradigms course material.

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https://github.com/mikejeuga/fonctionnelle

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https://github.com/mohamedismail37/bank-system

Console-based bank management system in C++ featuring file I/O, authentication, and permission levels,etc

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https://github.com/kash1444/py_files

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https://github.com/barbixxxa/functional-programming-language

Disciplina de Linguagem de Programação Funcional com o Professor Luis Menezes - POLI/UPE 2016.2

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https://github.com/i7t5/pagerank

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https://github.com/nicklatch/blog_generator

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https://github.com/sanghviharshit/config-parser-sml

Class Project - Implementation of a configuration parser using Standard ML of NJ (SML).

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https://github.com/itsonkar-dev/scaler-javascript-certification

Unlock the Power of JavaScript: A Comprehensive Collection of Detailed Modules from Scalar Topics'. This repository serves as a centralized hub for all the notes and concepts I've compiled throughout my journey in mastering JavaScript, ensuring a seamless learning experience.

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Last synced: 26 Jun 2025