veritatisdoloremque/docs-exp/database.database.useemulator.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/database](./database.md) &gt; [Database](./database.database.md) &gt; [useEmulator](./database.database.useemulator.md)

## Database.useEmulator() method

<b>Signature:</b>

```typescript
useEmulator(host: string, port: number): void;
```

## Parameters

|  Parameter | Type | Description |
|  --- | --- | --- |
|  host | string |  |
|  port | number |  |

<b>Returns:</b>

void