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: 2026-04-02 00:07:52 UTC
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https://github.com/denisdubochevalier/monad

Implementation of monads in go with generics

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Scala simple validation library

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Mädūl is the fun way to write functional code in TypeScript!

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Swift solutions to the exercises in "Functional Programming in Scala, 2nd Edition" (WIP).

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play with your spotify playlists using a Node.js cli

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Category theory definitions for the working programmer

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A library which calculates a bowling score, written in Haskell

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Functional Programming Gym with Java 8 and Scala

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Simple Minesweeper game written in ISL with lambdas (a functional programming variant of Racket).

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A functional ETL pipeline in OCaml that processes order data from CSV files hosted online using map, reduce, and filter, producing aggregated results and storing into a database.

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Structuring data from .txt file to JavaScript object literal using higher-order functions.

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Notes on functional programing techniques with Perl 6

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Library providing common functional utilities for the Lua programming language. Development of the library is currently frozen

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Type-safe pattern matching for TypeScript with exhaustiveness checking and zero dependencies

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https://github.com/isaacvando/functionalprogrammingsig

Resources for MCA Functional Programming SIG including Haskell Jupyter notebooks

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https://github.com/johnpaulada/maybe

A simple, lightweight, Maybe implementation in JavaScript.

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

We want to process a set of organizations from different industries to perform various queries about them using concepts from the functional paradigm. For each organization we know its name, website and other important fields. The main goal is to focus on modeling the data types and writing the necessary functions to perform the required analysis.

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https://github.com/exbotanical/heuristics

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

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