# 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.

# plotOptions.organization.dataLabels

Options for the data labels appearing on top of the nodes and links. For sankey charts, data labels are visible for the nodes by default, but hidden for links. This is controlled by modifying the `nodeFormat`, and the `format` that applies to links and is an empty string by default.