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: 2026-06-30 00:12:00 UTC
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https://github.com/david2261/python_lessons

Rules and examples of various built-in functions in Python

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https://github.com/benjaminangafua/rock-paper-scissor

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https://github.com/rshindo/jfunc

Sealed sum types for Java: Option/Either/Result/Try. Minimal, pattern-matching-first APIs.

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https://github.com/lamdalib/skachuler

Functional job scheduling library for Scala3

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https://github.com/aliariff/fp19

Functional Programming Class - RWTH Aachen University

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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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Full day Scala workshop.

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🎚️ Functional audio mixer with hardware control for Linux

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This is not mine. It's an orphan fork

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Sample add, delete, edit list Reactjs

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

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ES6 Defender

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A cool tool for functional programming

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https://github.com/kikytokamuro/futils

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https://github.com/critocrito/namefn

Set the name property of a function.

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https://github.com/Shohail-Ismail/Haskell-Texas-HoldEm

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https://github.com/tejanhu/freecodecamp-code-collection

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https://github.com/xkaunanx/functional-haskell-zone

UTN - 2nd Year Engineering: Functional Programming

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https://github.com/cmattinson/advent-of-code

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https://github.com/vastavikadi/haskell

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https://github.com/vastavikadi/elixir

A personal journey into learning Elixir covering basics, functional programming concepts, and small hands-on projects. Scale to billions, real-time and what not.

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https://github.com/deepakbhalla/java8-new-features

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https://github.com/rcardin/functional-error-handling-in-kotlin

Day by day examples of how we can handle error in Kotlin using functional programming

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App displays constantly changing patterns

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https://github.com/mohamed-taha-essa/programming-in-python-week3

Learn about the paradigms of procedural programming and the associated logical concepts. You'll explore functional and object-oriented programming, and get an introduction to algorithms

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https://github.com/xkrejc70/mit-flp-project1

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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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Functional go library to make function composition simple

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

An implementation of the Reader Monad in Kotlin

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https://github.com/jungstershark/clojurecipe

ClojuRecipe is a Clojure-based command-line tool that suggests recipes using the Edamam API. It leverages functional programming principles to provide reliable recipe suggestions based on the ingredients you have available.

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https://github.com/414owen/life-hs

Conway's Game of Life in Haskell

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https://github.com/hamidurrahman1/interpreter-part-2

Implementation of an interpreter (i.e., evaluator) for the expressions with user-defined functions.

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