mirror of
https://github.com/puppeteer/puppeteer
synced 2024-06-14 14:02:48 +00:00
ddc567a4b6
* chore(main): release 18.0.5 * chore: generate versioned docs Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
29 lines
847 B
Markdown
29 lines
847 B
Markdown
---
|
|
sidebar_label: EventEmitter.on
|
|
---
|
|
|
|
# EventEmitter.on() method
|
|
|
|
Bind an event listener to fire when an event occurs.
|
|
|
|
**Signature:**
|
|
|
|
```typescript
|
|
class EventEmitter {
|
|
on(event: EventType, handler: Handler): EventEmitter;
|
|
}
|
|
```
|
|
|
|
## Parameters
|
|
|
|
| Parameter | Type | Description |
|
|
| --------- | ------------------------------------- | ------------------------------------------------------------------ |
|
|
| event | [EventType](./puppeteer.eventtype.md) | the event type you'd like to listen to. Can be a string or symbol. |
|
|
| handler | [Handler](./puppeteer.handler.md) | the function to be called when the event occurs. |
|
|
|
|
**Returns:**
|
|
|
|
[EventEmitter](./puppeteer.eventemitter.md)
|
|
|
|
`this` to enable you to chain method calls.
|