Show Indicator at last point on Highchart spline chart

Question

I know how to show marker at last point like this.

When the data is dynamic, don\'t know how to mark the last point.

plotOptions: {
        column: {         


        

Answer 1

When you are adding new points dynamically you can simultaneously remove the marker from the current last point (Point.update), while adding a new point with marker enabled (Series.addPoint).

For example (JSFiddle):

// get the series
series = $('#container').highcharts().series[0]

// remove marker from last point
series.points[series.points.length-1].update({
    marker: {
        enabled:false
    }
}, false);

// add new point with marker
series.addPoint({
    y: Math.random()*100,
    marker: {
        enabled: true
    }
});

The false parameter for the Point.update is to prevent redrawing, as you are going to redraw after the Series.addPoint anyway, which should save some processing.