luhn-generator/update/node_modules/core-js/modules/_date-to-primitive.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';
var anObject = require('./_an-object');
var toPrimitive = require('./_to-primitive');
var NUMBER = 'number';

module.exports = function (hint) {
  if (hint !== 'string' && hint !== NUMBER && hint !== 'default') throw TypeError('Incorrect hint');
  return toPrimitive(anObject(this), hint != NUMBER);
};