The area spline series is an area series where the graph between the points is smoothed into a spline.

In TypeScript the type option must always be set.

Configuration options for the series are given in three levels:

  1. Options for all series in a chart are defined in the plotOptions.series object.
  2. Options for all areaspline series are defined in plotOptions.areaspline.
  3. Options for one single series are given in the series instance array.
Highcharts.chart('container', {
    plotOptions: {
        series: {
            // general options for all series
        areaspline: {
            // shared options for all areaspline series
    series: [{
        // specific options for this series instance
        type: 'areaspline'