luhn-generator/update/node_modules/array.prototype.flat/shim.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 define = require('define-properties');
var getPolyfill = require('./polyfill');

module.exports = function shimFlat() {
	var polyfill = getPolyfill();
	define(
		Array.prototype,
		{ flat: polyfill },
		{ flat: function () { return Array.prototype.flat !== polyfill; } }
	);
	return polyfill;
};