# Welcome to the Highcharts Maps JS (highmaps) 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.

# xAxis

The X axis or category axis. Normally this is the horizontal axis, though if the chart is inverted this is the vertical axis. In case of multiple axes, the xAxis node is an array of configuration objects.

See the Axis class for programmatic access to the axis.