update property
dynamic
update
getter/setter pair
Fires when the point is updated programmatically through the
.update() method. One parameter, event, is passed to the
function. The new point options can be accessed through
event.options. Returning false cancels the operation.
API Docs: https://api.highcharts.com/highcharts/series.arearange.data.events.update
Implementation
dynamic update;