Chart.js v2 stacked bar chart

by shamaleyte

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/Chart.js/2.7.2/Chart.min.js"></script>
<canvas id="bar-chart" width="600" height="350"></canvas>

JavaScript

// Return with commas in between
  var numberWithCommas = function(x) {
    return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
  };

var dataPack1 = [40, 47, 44, 38, 27];
var dataPack2 = [10, 12, 7, 5, 4];
var dataPack3 = [17, 11, 22, 18, 12];
var dates = ["Some l-o-o-o-o- label", "AAA", "BBB", "CCC", "DDDDDDDDD"];

var bar_ctx = document.getElementById('bar-chart');

var bar_chart = new Chart(bar_ctx, {
    type: 'bar',
    data: {
        labels: dates,
        datasets: [
        {
            label: 'Bad Style',
            data: dataPack1,
						backgroundColor: "#512DA8",
						hoverBackgroundColor: "#7E57C2",
						hoverBorderWidth: 0
        },
        {
            label: 'Warning',
            data: dataPack2,
						backgroundColor: "#FFA000",
						hoverBackgroundColor: "#FFCA28",
						hoverBorderWidth: 0
        },
        {
            label: 'Error',
            data: dataPack3,
						backgroundColor: "#D32F2F",
						hoverBackgroundColor: "#EF5350",
						hoverBorderWidth: 0
        },
        ]
    },
    options: {
     		animation: {
        	duration: 10,
        },
        tooltips: {
					mode: 'label',
          callbacks: {
          label: function(tooltipItem, data) { 
          	return data.datasets[tooltipItem.datasetIndex].label + ": " + numberWithCommas(tooltipItem.yLabel);
          }
          }
         },
        scales: {
          xAxes: [{ 
          	stacked: true, 
            gridLines: { display: false },
            }],
          yAxes: [{ 
          	stacked: true, 
            ticks: {
        			callback: function(value) { return numberWithCommas(value); },
     				}, 
            }],
        },
        legend: {display: true}
    },
  
   }
);