JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://cdn.kendostatic.com/2012.1.515/js/kendo.all.min.js"></script>
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.1.322/styles/kendo.common.min.css">
<link rel="stylesheet" href="http://cdn.kendostatic.com/2012.1.322/styles/kendo.default.min.css">
<div id="grid"></div>
<button onclick="FilterClicked(this)">Click for only farmers</button>

JavaScript

//Our static datasource
var allRecords = [{
    "Job": "Worker",
    "Name": "Joe Smith",
    "Age": 30},
{
    "Job": "Farmer",
    "Name": "Old McDonald",
    "Age": "62",
    "Crops": 5000000},
{
    "Job": "Manager",
    "Name": "Donald Trump",
    "Age": 66},
{
    "Job": "Worker",
    "Name": "Bob Northrup",
    "Age": 22},
{
    "Job": "Farmer",
    "Name": "Slappy Joe",
    "Age": 33,
    "Crops": 10000}];

//Kendo column helper
function newColumn(field, title, width) {
    var myColumn = {};
    myColumn.field = field;
    myColumn.title = title;
    if (width !== undefined) {
        myColumn.width = width;
    }
    return myColumn;
}

//Columns for all people
function PeopleColumnPopulation() {
    var columns = [];
    var field = "Job";
    var title = "job";
    var width = "100px";
    columns[0] = newColumn(field, title, width);
    field = "Name";
    title = "name";
    width = undefined;
    
    columns[2] = newColumn(field, title, width);
    return columns;
}

//The column variable for the grid. Initialized to all people
var gridColumns = PeopleColumnPopulation();

//The data source of the grid. Initialized to all people
var dataSource = new kendo.data.DataSource({
    data: allRecords
});

//Helper method to build Kendo filter object
function newFilter(field, op, val) {
    var myFilter = {};
    myFilter.field = field;
    myFilter.operator = op;
    myFilter.value = val;
    return myFilter;
}

//Function which will build columns for a farmer
function FarmerColumnPopulation() {
    var columns = [];
    var field = "Job";
    var title = "Job";
    var width = "100px";
    columns[0] = newColumn(field, title, width);
    field = "Name";
    title = "Name";
    width = undefined;
    columns[1] = newColumn(field, title, width);
    field = "Age";
    title = "Age";
    width = "50px";
    columns[2] = newColumn(field, title, width);
    field = "Crops";
    title = "# of Crops";
    width = "100px";
    columns[3] = newColumn(field,...