layerIndex(): number | null

Get the index of the current layer the object is assigned to.

returnsThe index of the layer the object is assigned to, or `null` if the layer does not exist.

layer(): string | null

Get the name of the current layer the object is assigned to.

returnsThe name of the layer the object is assigned to.

layer(name: string):

Set the name of the layer the object should be assigned to.