Common Properties
All events share two common properties.
type: string
A type of the event.
This value is equal to event's name.
Example
viewer.on("ready", evt => {
console.log(evt.type); // "ready"
});
target: View360
An instance of the component that triggered this event.
Example
viewer.on("ready", evt => {
console.log(evt.target); // = viewer
});