puppeteer/docs/api/puppeteer.eventemitter.listenercount.md

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2022-06-29 13:00:37 +00:00
---
sidebar_label: EventEmitter.listenerCount
---
# EventEmitter.listenerCount() method
Gets the number of listeners for a given event.
**Signature:**
```typescript
class EventEmitter {
listenerCount(event: EventType): number;
}
```
## Parameters
| Parameter | Type | Description |
| --------- | ------------------------------------- | --------------------------------------- |
| event | [EventType](./puppeteer.eventtype.md) | the event to get the listener count for |
**Returns:**
number
the number of listeners bound to the given event