https://nationaltrailraceway.com/modules/custom/trackside_point_of_sale/js/trackside.pos.default.js?tlv2c6

1const posGlobal = (function() {
2  "use strict";
3
4  const _this = {
5    user: "Trackside.point_of_sale.user",
6    items: "Trackside.point_of_sale.items",
7    total: "Trackside.point_of_sale.total",
8    tab: "Trackside.point_of_sale.tab",
9    tabDirtyFlag: "Trackside.point_of_sale.tab_dirty_flag",
10
11    initialize() {
12      _this.setUser(null);
13      _this.setItems([]);
14      _this.setTotal(0.00);
15
16      // We set this last so the "dirty tab" flag gets (and stays) set properly
17      _this.setTab(null);
18    },
19
20    getValue(index, shouldParse = true) {
21      const stringValue = localStorage.getItem(index);
22      return shouldParse ? JSON.parse(stringValue) : stringValue;
23    },
24    getUser(shouldParse = true) {
25      return _this.getValue(_this.user, shouldParse);
26    },
27    getItems(shouldParse = true) {
28      return _this.getValue(_this.items, shouldParse);
29    },
30    getTotal(shouldParse = true) {
31      return _this.getValue(_this.total, shouldParse);
32    },
33    getTab(shouldParse = true) {
34      return _this.getValue(_this.tab, shouldParse);
35    },
36
37    isTabDirty() {
38      return _this.getValue(_this.tabDirtyFlag, true);
39    },
40
41    setValue(index, newValue) {
42      localStorage.setItem(index, typeof newValue !== "string" ? JSON.stringify(newValue) : newValue);
43
44      if (index !== _this.tab && index !== _this.tabDirtyFlag && !_this.isTabDirty() && _this.getTab() !== null)
45      {
46        // Since we have a current tab and we've changed some of our cart data, mark the tab as dirty
47        _this.setValue(_this.tabDirtyFlag, true);
48      }
49    },
50    setUser(newValue) {
51      _this.setValue(_this.user, newValue);
52    },
53    setItems(newValue) {
54      _this.setValue(_this.items, newValue);
55    },
56    setTotal(newValue) {
57      _this.setValue(_this.total, newValue);
58    },
59    setTab(newValue) {
60      _this.setValue(_this.tab, newValue);
61
62      // Reset our tracking of whether the tab is dirty
63      _this.setValue(_this.tabDirtyFlag, false);
64    },
65  };
66
67  return _this;
68})();