23 lines
485 B
Markdown
23 lines
485 B
Markdown
---
|
|
sidebar_label: Page.once
|
|
---
|
|
# Page.once() method
|
|
|
|
**Signature:**
|
|
|
|
```typescript
|
|
class Page {once<K extends keyof PageEventObject>(eventName: K, handler: (event: PageEventObject[K]) => void): EventEmitter;}
|
|
```
|
|
|
|
## Parameters
|
|
|
|
| Parameter | Type | Description |
|
|
| --- | --- | --- |
|
|
| eventName | K | |
|
|
| handler | (event: [PageEventObject](./puppeteer.pageeventobject.md)\[K\]) => void | |
|
|
|
|
**Returns:**
|
|
|
|
[EventEmitter](./puppeteer.eventemitter.md)
|
|
|