voluptasmollitia/docs-exp/firestore_.documentreference.id.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/firestore](./firestore.md) &gt; [/](./firestore_.md) &gt; [DocumentReference](./firestore_.documentreference.md) &gt; [id](./firestore_.documentreference.id.md)

## DocumentReference.id property

The document's identifier within its collection.

<b>Signature:</b>

```typescript
get id(): string;
```