api-docs/docs/browser-tracker/markdown/browser-tracker.browsertracker.getuserid.md
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[Home](./index.md) > [@snowplow/browser-tracker](./browser-tracker.md) > [BrowserTracker](./browser-tracker.browsertracker.md) > [getUserId](./browser-tracker.browsertracker.getuserid.md)
## BrowserTracker.getUserId property
Get the current user ID (as set previously with setUserId()).
<b>Signature:</b>
```typescript
getUserId: () => string | null | undefined;
```