OpenLayersApplications do not normally create event instances. They register (and
unregister) event listener functions, which, when called by the library as
the result of an event being dispatched, are passed event instances as their
first argument. Listeners can be registered and unregistered on all objects
descending from ol.Observable. All event instances have a target
property, which corresponds to the object on which the event was dispatched.
By default, this within the listener also refers to the target, though
this can be configured in the listener registration function.
Some classes have their own event type, which return additional
properties; see the specific event class page for details.
Namespace: events
ol.events
import events from 'ol/events';