# 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.startOnTick

Whether to force the axis to start on a tick. Use this option with the `maxPadding` option to control the axis start.

In Highstock, `startOnTick` is always false when either the navigator or vertical panning is enabled, to prevent jumpy scrolling.