<!-- Do not edit this file. It is automatically generated by API Documenter. --> [`Component`](Component) › [`registerEvent`](Component/registerEvent) ## Component.registerEvent() method Registers an event to be detached when unloading **Signature:** ```typescript registerEvent(eventRef: EventRef): void; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | <code>eventRef</code> | [`EventRef`](EventRef) | | **Returns:** `void`