hytopia/docs/server.eventrouter.haslisteners.md

The HYTOPIA SDK makes it easy for developers to create massively multiplayer games using JavaScript or TypeScript.

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[Home](./index.md) &gt; [server](./server.md) &gt; [EventRouter](./server.eventrouter.md) &gt; [hasListeners](./server.eventrouter.haslisteners.md)

## EventRouter.hasListeners() method

Check if there are listeners for a specific event type.

**Signature:**

```typescript
hasListeners<TEventType extends keyof EventPayloads>(eventType: TEventType): boolean;
```

## Parameters

<table><thead><tr><th>

Parameter


</th><th>

Type


</th><th>

Description


</th></tr></thead>
<tbody><tr><td>

eventType


</td><td>

TEventType


</td><td>

The type of event to check for listeners.


</td></tr>
</tbody></table>
**Returns:**

boolean

`true` if listeners are found, `false` otherwise.