# 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.dependencywheel.stack

This option allows grouping series in a stacked chart. The stack option can be a string or anything else, as long as the grouped series' stack options match each other after conversion into a string.