veritatisdoloremque/docs-exp/firestore_lite.updatedata.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/firestore](./firestore.md) &gt; [lite](./firestore_lite.md) &gt; [UpdateData](./firestore_lite.updatedata.md)

## UpdateData interface

Update data (for use with ) consists of field paths (e.g. 'foo' or 'foo.baz') mapped to values. Fields that contain dots reference nested fields within the document.

<b>Signature:</b>

```typescript
export declare interface UpdateData 
```