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Layer.on() method

Registers a handler for the given lifecycle event.

Signature:

on(eventKey: LifecycleEventKey, handler: LifecycleHandler<TData> | TransitionHandler<TData>): this;

Parameters

Parameter	Type	Description
eventKey	LifecycleEventKey
handler	LifecycleHandler<TData> | TransitionHandler<TData>

Returns:

this