# Welcome to the Highcharts Gantt JS (gantt) 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.animation

Set the overall animation for all chart updating. Animation can be disabled throughout the chart by setting it to false here. It can be overridden for each individual API method as a function parameter. The only animation not affected by this option is the initial series animation, see plotOptions.series.animation.

The animation can either be set as a boolean or a configuration object. If `true`, it will use the 'swing' jQuery easing and a duration of 500 ms. If used as a configuration object, the following properties are supported:

- `defer`: The animation delay time in milliseconds.

- `duration`: The duration of the animation in milliseconds.

- `easing`: A string reference to an easing function set on the `Math` object. See the easing demo.

When zooming on a series with less than 100 points, the chart redraw will be done with animation, but in case of more data points, it is necessary to set this option to ensure animation on zoom.