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: 2026-06-29 00:11:58 UTC
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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/mathemage/fup-programming-exam

Programming exams for B4B36FUP Functional Programming

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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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Advent of Code challanges solved using Rust's iterators and functional programming

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https://github.com/mdb/funcy

A minimal Go package providing a few functional utilities.

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https://github.com/wdalmut/curry

An example of currying and partial application

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https://github.com/zhangchiqing/nnmap

Map a function over nullable value

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https://github.com/mobiwn/programming-language-design

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Functional Programming subject of @CMDA-TT

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Functional programming toolkit for Go

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✨ Functional programming library for JavaScript. Fully type-safe.

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

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

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Private blog & cv

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Github default profile image generator written in elixir

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Master Thesis work

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A spreadsheet application, features parsing and evaluating mathematical expressions, implementing spreadsheet functions, handling cell references, and creating interactive web interfaces with dynamic updates.

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Y combinator and fixed-point recursion exploration across Scheme dialects with formal verification

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Ocaml interpreter (Sedlex tokenizer + Menhir parser) of modularized classes with two means of inheritance.

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Implementations of the 99 problems in Erlang.

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

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https://github.com/p-obrthr/functional-csharp

functional experimentation with C#

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OOP PHP Fundamental

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Yet another functional programming library for node.js

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https://github.com/smsraj2001/java-workspace

A basic foundation learnings on java and its features.

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https://github.com/agapas/react-carousel

Image carousel made with React and TypeScript

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A Clojure webhook handler for processing and validating payment events with SQLite persistence and HTTP callbacks for confirmation/cancellation.

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https://github.com/fantiga/ticf-ic.com

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Challenges from Category Theory for Programmers

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https://github.com/those-otter-programs/functional_interface_bean_mapper

Sampling the use of functional interfaces to create bean mappers.

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https://github.com/lucas-nelson-uiuc/tidy_tools

Declarative programming for PySpark workflows.

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https://github.com/ghillairet/frdomain-kt

Kotlin version of code from the book Functional and Reactive Domain Modeling

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🎯 A reactive browser game built with RxJS Observables. Practice event streams, state management, and DOM updates in real time.

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NPM module to perform object to object mapping using reusable, composable filter functions (https://www.npmjs.com/package/object-to-object-mapper)

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https://github.com/thoughtfool/c-h-a-z

Hello, C.H.a.Z. (Cyborgs, Humans, ampersand Zombies): A simple strategy game demonstrating how enemies can become potential allies, where the balance between forces can shift in/out of your favor. Enemy of my enemy is my friend!

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https://github.com/giljr/turbo-todos

Turbo Todos is a simple To-Do List application built with Rails 8 and Tailwind CSS. This app demonstrates the use of Turbo Streams for dynamic, real-time updates without requiring full-page reloads.

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https://github.com/aviabird/elixir-beginner

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https://github.com/anurag1101/the_perfect_guess

Perfect Guess is a simple number guessing game built with Python. Players try to guess a randomly generated number between 1 and 100, receiving feedback on whether their guesses are too high or too low. The game continues until the correct number is guessed, with an option to play again. Enjoy testing your guessing skills!

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