mirror of
https://github.com/puppeteer/puppeteer
synced 2024-06-14 14:02:48 +00:00
23 lines
483 B
Markdown
23 lines
483 B
Markdown
---
|
|
sidebar_label: CommonEventEmitter.once
|
|
---
|
|
# CommonEventEmitter.once() method
|
|
|
|
**Signature:**
|
|
|
|
```typescript
|
|
interface CommonEventEmitter {once(event: EventType, handler: Handler): CommonEventEmitter;}
|
|
```
|
|
|
|
## Parameters
|
|
|
|
| Parameter | Type | Description |
|
|
| --- | --- | --- |
|
|
| event | [EventType](./puppeteer.eventtype.md) | |
|
|
| handler | [Handler](./puppeteer.handler.md) | |
|
|
|
|
**Returns:**
|
|
|
|
[CommonEventEmitter](./puppeteer.commoneventemitter.md)
|
|
|