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Monorepo for the Firebase JavaScript SDK
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[Home](./index.md) > [@firebase/database](./database.md) > [DataSnapshot](./database.datasnapshot.md) > [numChildren](./database.datasnapshot.numchildren.md)
## DataSnapshot.numChildren() method
<b>Signature:</b>
```typescript
numChildren(): number;
```
<b>Returns:</b>
number