# 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.pane

Refers to the index in the panes array. Used for circular gauges and polar charts. When the option is not set then first pane will be used.