# 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.

# series.areaspline.showCheckbox

If true, a checkbox is displayed next to the legend item to allow selecting the series. The state of the checkbox is determined by the `selected` option.

Note that if a `colorAxis` is defined, the color axis is represented in the legend, not the series.