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puppeteer/docs/api/puppeteer.eventemitter.listenercount.md
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sidebar_label
EventEmitter.listenerCount

EventEmitter.listenerCount() method

Gets the number of listeners for a given event.

Signature:

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

Parameters

Parameter

Type

Description

type

keyof EventsWithWildcard<Events>

the event to get the listener count for

**Returns:**

number

the number of listeners bound to the given event