Adding Stripline to the last dataPoint of the dataSeries | CanvasJS JavaScript Charts

Adding Stripline to the last dataPoint of the dataSeries | 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>

JavaScript

var chart = new CanvasJS.Chart("chartContainer", {
  title: {
    text: "Add Stripline to the last datapoint of the series"
  },
  data: [
    {
      type: "spline",
      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 }
      ]
    }					
  ]
});

updateStripline(chart);
chart.render();

function updateStripline(chart){
  if(!chart.options.axisY)
    chart.options.axisY = {stripLines: []};

  if(!chart.options.axisY.stripLines)
    chart.options.axisY.stripLines = [];

  for(var i = 0; i < chart.options.data.length; i++){    
    if(!chart.options.axisY.stripLines[i])
      chart.options.axisY.stripLines[i] = {
        value: chart.options.data[i].dataPoints[chart.options.data[i].dataPoints.length - 1].y,
        label: chart.options.data[i].dataPoints[chart.options.data[i].dataPoints.length - 1].y
      }
  }
}