voluptasmollitia/docs-exp/database.datasnapshot.size.md

Monorepo for the Firebase JavaScript SDK

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[Home](./index.md) &gt; [@firebase/database](./database.md) &gt; [DataSnapshot](./database.datasnapshot.md) &gt; [size](./database.datasnapshot.size.md)

## DataSnapshot.size property

Returns the number of child properties of this `DataSnapshot`<!-- -->.

<b>Signature:</b>

```typescript
get size(): number;
```