https://www.voguefabricsstore.com/assets/web/common/js/xcart.extend.js?tstamp=1790373892

1/* vim: set ts=2 sw=2 sts=2 et: */
2
3/**
4 * Copyright (c) 2001-present X-Cart Holdings LLC. All rights reserved.
5 * See https://www.x-cart.com/license-agreement.html for license details.
6 */
7
8Object.getOwnPropertyDescriptors = function getOwnPropertyDescriptors(obj) {
9    var descriptors = {};
10    for (var prop in obj) {
11        if (obj.hasOwnProperty(prop)) {
12            descriptors[prop] = Object.getOwnPropertyDescriptor(obj, prop);
13        }
14    }
15    return descriptors;
16};
17
18Function.prototype.extend = function (proto) {
19    var superclass = this;
20    var constructor;
21
22    if (!proto.hasOwnProperty('constructor')) {
23        Object.defineProperty(proto, 'constructor', {
24            value: function () {
25                // Default call to superclass as in maxmin classes
26                superclass.apply(this, arguments);
27            },
28            writable: true,
29            configurable: true,
30            enumerable: false
31        });
32    }
33    constructor = proto.constructor;
34
35    constructor.prototype = Object.create(this.prototype, Object.getOwnPropertyDescriptors(proto));
36
37    constructor.superclass = superclass.prototype;
38
39    return constructor;
40};