luhn-algorithm

Luhn

This is Luhn algorithm to check the validity of card number

How to use?

const luhn = require("luhn-algorithm");

console.log(luhn("5379-4130-2690-0099")); // true
console.log(luhn("4847-3529-8926-349")); // true

console.log(luhn("1234-1234-349")); // false