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dispatchEvent - Events - Web documentation
function dispatchEvent
dispatchEvent(event: Event): boolean

Dispatches an event in the global scope, synchronously invoking any registered event listeners for this event in the appropriate order. Returns false if event is cancelable and at least one of the event handlers which handled this event called Event.preventDefault(). Otherwise it returns true.

dispatchEvent(new Event('unload'));

Parameters

event: Event

Return Type

boolean