puppeteer/website/versioned_docs/version-21.1.1/api/puppeteer.commoneventemitter.md

---
sidebar_label: CommonEventEmitter
---

# CommonEventEmitter interface

#### Signature:

```typescript
export interface CommonEventEmitter
```

## Methods

| Method                                                                             | Description |
| ---------------------------------------------------------------------------------- | ----------- |
| [addListener(event, handler)](./puppeteer.commoneventemitter.addlistener.md)       |             |
| [emit(event, eventData)](./puppeteer.commoneventemitter.emit.md)                   |             |
| [listenerCount(event)](./puppeteer.commoneventemitter.listenercount.md)            |             |
| [off(event, handler)](./puppeteer.commoneventemitter.off.md)                       |             |
| [on(event, handler)](./puppeteer.commoneventemitter.on.md)                         |             |
| [once(event, handler)](./puppeteer.commoneventemitter.once.md)                     |             |
| [removeAllListeners(event)](./puppeteer.commoneventemitter.removealllisteners.md)  |             |
| [removeListener(event, handler)](./puppeteer.commoneventemitter.removelistener.md) |             |