README.md

Lunh

Simple implementation of the Lunh Algorithm which can be useful to check credit card 💳 before processing.

Get Started

Install

npm i @recodable/lunh

or

yarn add @recodable/lunh

Example

import { lunh } from '@recodable/lunh';
// or `const { lunh } = require('@recodable/lunh');` for Node.js module

lunh('4242424242424242'); // returns true as "4242424242424242" is valid credit card

lunh('4242424242424241'); // returns false for invalid credit card

lunh('4242 4242 4242 4242'); // we also accept spaces

lunh('4242-4242-4242-4242'); // and dashes

lunh('424242424242hello'); // returns false if anything else is pass to the function

Credit

Inspired by DiegoSalazar