api-docs/docs/node-tracker/markdown/node-tracker.adclickevent.bannerid.md
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[Home](./index.md) > [@snowplow/node-tracker](./node-tracker.md) > [AdClickEvent](./node-tracker.adclickevent.md) > [bannerId](./node-tracker.adclickevent.bannerid.md)
## AdClickEvent.bannerId property
Identifier for the ad banner being displayed
<b>Signature:</b>
```typescript
bannerId?: string;
```