luhn-generator/update/node_modules/core-js-pure/internals/native-weak-map.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

var global = require('../internals/global');
var inspectSource = require('../internals/inspect-source');

var WeakMap = global.WeakMap;

module.exports = typeof WeakMap === 'function' && /native code/.test(inspectSource(WeakMap));