# JS API Reference

# Welcome to the Highcharts JS Options Reference

These pages outline the chart configuration options, and the methods and properties of Highcharts objects.

Feel free to search this API through the search bar or the navigation tree in the sidebar.

# plotOptions.windbarb.pointInterval

If no x values are given for the points in a series, `pointInterval` defines the interval of the x values. For example, if a series contains one value every decade starting from year 0, set `pointInterval` to `10`. In true `datetime` axes, the `pointInterval` is set in milliseconds.

It can be also be combined with `pointIntervalUnit` to draw irregular time intervals.

Please note that this options applies to the series data, not the interval of the axis ticks, which is independent.