| FluentUI Compat

EventGroup.on() method

Adds an event listener to the specified target.

This method registers an event listener and tracks it for automatic cleanup. Multiple listeners can be added to the same target/event combination.

Signature:

on(target: IEventTarget, eventName: string, callback: EventListener | ((...args: any[]) => void), options?: EventListenerOptions): EventGroup;

Parameter	Type	Description
target	IEventTarget	The event target (element, window, document, etc.)
eventName	string	The name of the event to listen for
callback	EventListener \| ((...args: any[]) => void)	The callback function to invoke when the event fires
options	EventListenerOptions	(Optional) Optional event listener options (capture, passive, once, etc.)

Returns:

EventGroup

This EventGroup instance for method chaining