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https://github.com/puppeteer/puppeteer
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31 lines
693 B
Markdown
31 lines
693 B
Markdown
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---
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sidebar_label: EventEmitter.addListener
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---
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# EventEmitter.addListener() method
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> Warning: This API is now obsolete.
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>
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> please use [EventEmitter.on()](./puppeteer.eventemitter.on.md) instead.
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Add an event listener.
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**Signature:**
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```typescript
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class EventEmitter {
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addListener(event: EventType, handler: Handler): EventEmitter;
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}
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```
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## Parameters
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| Parameter | Type | Description |
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| --------- | ------------------------------------- | ----------- |
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| event | [EventType](./puppeteer.eventtype.md) | |
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| handler | [Handler](./puppeteer.handler.md) | |
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**Returns:**
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[EventEmitter](./puppeteer.eventemitter.md)
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