[Home](./index.md) > [@firebase/firestore](./firestore.md) > [lite](./firestore_lite.md) > [snapshotEqual](./firestore_lite.snapshotequal.md) ## snapshotEqual() function Returns true if the provided snapshots are equal. Signature: ```typescript export declare function snapshotEqual(left: DocumentSnapshot | QuerySnapshot, right: DocumentSnapshot | QuerySnapshot): boolean; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | left | [DocumentSnapshot](./firestore_lite.documentsnapshot.md)<T> \| [QuerySnapshot](./firestore_lite.querysnapshot.md)<T> | A snapshot to compare. | | right | [DocumentSnapshot](./firestore_lite.documentsnapshot.md)<T> \| [QuerySnapshot](./firestore_lite.querysnapshot.md)<T> | A snapshot to compare. | Returns: boolean true if the snapshots are equal.