Doughnut exploded chart

<!DOCTYPE HTML>
<html>
<head>
  <script type="text/javascript">
  window.onload = function () {
    var chart = new CanvasJS.Chart("chartContainer",
    {
        title:{
        text: "Label 1 Explodes"
      },

      data: [
      {
       indexLabelPlacement: "outside",
       type: "doughnut",
        indexLabelPlacement: "inside",
       dataPoints: [
       {  y: 8, indexLabel:"label1", exploded: true },
       {  y: 3, indexLabel:"label2" },


       ]
     }
     ]
   });

    chart.render();
  }
  </script>
  <script type="text/javascript" src="/assets/script/canvasjs.min.js"></script></head>
  <body>
    <div id="chartContainer" style="height: 300px; width: 100%;">
    </div>
  </body>
  </html>