luhn-generator/update/node_modules/core-js/fn/regexp/to-string.js

A generator of numbers that passes the validation of Luhn algorithm or Luhn formula, also known as the 'modulus 10' or 'mod 10' algorithm

'use strict';
require('../../modules/es6.regexp.to-string');
module.exports = function toString(it) {
  return RegExp.prototype.toString.call(it);
};