# 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.scatter3d.events.checkboxClick

Fires when the checkbox next to the series' name in the legend is clicked. One parameter, `event`, is passed to the function. The state of the checkbox is found by `event.checked`. The checked item is found by `event.item`. Return `false` to prevent the default action which is to toggle the select state of the series.