# 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.

# annotations.labels.point.yAxis

This number defines which yAxis the point is connected to. It refers to either the axis id or the index of the axis in the yAxis array. If the option is not configured or the axis is not found the point's y coordinate refers to the chart pixels.