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Version: 21.3.1

EventEmitter.listenerCount() method

Gets the number of listeners for a given event.

Signature:​

class EventEmitter {
  listenerCount(type: keyof EventsWithWildcard<Events>): number;
}

Parameters​

ParameterTypeDescription
typekeyof EventsWithWildcard<Events>the event to get the listener count for

Returns:

number

the number of listeners bound to the given event