Adding Datapoints dynamically on click of button - CanvasJS JavaScript Charts

Adding Datapoints dynamically on click of button - CanvasJS JavaScript Charts

by canvasjs

HTML

<script src="https://canvasjs.com/assets/script/canvasjs.min.js"></script>
<br/><!-- Just so that JSFiddle's Result label doesn't overlap the Chart -->
<div id="chartContainer" style="height: 360px; width: 100%;"></div>
<button id="addDps">Add Datapoints</button>

JavaScript

var chart = new CanvasJS.Chart("chartContainer",
                               {
  title:{
    text: "Add Datapoints Dynamically"
  },
  data: [
    {
      type: "column",
      dataPoints: []
    },
    {
      type: "line",
      dataPoints: [
        { x: 10, y: 71 },
        { x: 20, y: 55 },
        { x: 30, y: 50 },
        { x: 40, y: 65 },
        { x: 50, y: 95 },
        { x: 60, y: 68 },
        { x: 70, y: 28 },
        { x: 80, y: 34 },
        { x: 90, y: 14 }
      ]
    },

  ]
});
chart.render();

document.getElementById("addDps").addEventListener("click", function() {
  chart.options.data[0].dataPoints = [
    { x: 10, y: 171 },
    { x: 20, y: 155 },
    { x: 30, y: 150 },
    { x: 40, y: 165 },
    { x: 50, y: 195 },
    { x: 60, y: 168 },
    { x: 70, y: 128 },
    { x: 80, y: 134 },
    { x: 90, y: 114 }
  ]
  chart.render();

});