Simple Google Piechart

How to use google piechart. P.S.: Don't forget about using jsapi.js

HTML

<script src="http://www.google.com/jsapi?ext.js"></script>
<div id="chart"></div>

JavaScript

function drawChart() {
    var data = google.visualization.arrayToDataTable([
        ['Genre','RM1',{ role: 'annotation' }, { role: 'style' },
        				 'RM2',{ role: 'annotation' }, { role: 'style' }],
        ['22 Sep 2018',	32,'RM1','3366cc',	33,'RM2','ff9900'],
        ['23 Sep 2018',	30,'RM1','3366cc',	31,'RM2','ff9900']
      ]);

    var chart = new google.visualization.ColumnChart(document.getElementById('chart'));
    chart.draw(data, {
        width: 650,
        height: 500,
        isStacked: true, 
        fontSize: 11,
        chartArea:{
            top:20,
            left:100
        },   
        sliceVisibilityThreshold: 0
    });
  }      

google.load('visualization', '1', {packages: ['corechart']});
google.setOnLoadCallback(drawChart);