# 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.

# chart.parallelAxes.reversedStacks

If `true`, the first series in a stack will be drawn on top in a positive, non-reversed Y axis. If `false`, the first series is in the base of the stack.