JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://igniteui.com/js/modernizr.min.js"></script>
<script src="https://code.jquery.com/jquery-1.9.1.min.js"></script>
<script src="https://code.jquery.com/ui/1.10.3/jquery-ui.min.js"></script>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/infragistics.core.js"></script>
<script src="https://cdn-na.infragistics.com/igniteui/latest/js/infragistics.lob.js"></script>
<script src="https://igniteui.com/js-data/northwind"></script>
<link href="https://cdn-na.infragistics.com/igniteui/latest/css/themes/infragistics/infragistics.theme.css" rel="stylesheet"></link>
<link href="https://cdn-na.infragistics.com/igniteui/latest/css/structure/infragistics.css" rel="stylesheet"></link>

<table id="grid3">
    </table>

JavaScript

$(function () {
// the JavaScript function used for the formula property
        function CalculateFreightExpence(data, grid) {
            return 2.95 * data["Freight"];
        }

        $(function () {

            /*----------------- Event Examples -------------------------*/

            $("#grid3").on("iggriddatabound", function (event, ui) {
                var i, grid = ui.owner,
                     ds = grid.dataSource,
                     data = ds.data(),
                     dataLength = data.length;

                for (i = 0; i < dataLength; i++) {
                    if (data[i]["Country"] === "USA") {
                        data[i]["IsUSA"] = true;
                    }
                    else {
                        data[i]["IsUSA"] = false;
                    }
                }
            });

            /*----------------- Instantiation -------------------------*/

            $("#grid3").igHierarchicalGrid({
                features: [
                    {
                        name: "Responsive",
                        enableVerticalRendering: false,
                        columnSettings: [
                            {
                                columnKey: "Title",
                                classes: "ui-hidden-phone"
                            },
                            {
                                columnKey: "Region",
                                classes: "ui-hidden-phone"
                            },
                            {
                                columnKey: "City",
                                classes: "ui-hidden-phone"
                            }
                        ]
                    }
                ],
                width: "100%",
                dataSource: northwind,
                dataSourceType: "json",
                responseDataKey: "results",
                autoGenerateColumns: false,
                autofitLastColumn: false,
                primaryKey:...