Update

Update events are triggered when the value of a property or a state changes.
It's important to note that unlike interaction events, update events do not follow a propagation system.

Event	Description	Parameters
positionchange	Triggered when the object's position changes.
scalechange	Triggered when the object's scale changes.
rotationchange	Triggered when the object's rotation changes.
enabledchange	Triggered when the object's enabled state changes (either its own or the parent's enabled property).	PropertyChangeEvent
visiblechange	Triggered when the object's visibility changes (either its own or the parent's visible property).	PropertyChangeEvent

Example

const box = new Mesh(new BoxGeometry(), new MeshLambertMaterial());

box.on('positionchange', () => console.log('position changed'));

box.on('scalechange', () => console.log('scale changed'));

box.on('rotationchange', () => console.log('rotation changed'));

box.on('enabledchange', (e) => {
    console.log(`enabled state changed. Parent: ${e.target.name}, value: ${e.value}`)
});

box.on('visiblechange', (e) => {
    console.log(`visibility state changed. Parent: ${e.target.name}, value: ${e.value}`)
});