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QueryDocumentSnapshot class
A QueryDocumentSnapshot contains data read from a document in your Firestore database as part of a query. The document is guaranteed to exist and its data can be extracted with .data() or .get(<field>) to get a specific field.
A QueryDocumentSnapshot offers the same API surface as a DocumentSnapshot. Since query results contain only existing documents, the exists property will always be true and data() will never return 'undefined'.
Signature:
export declare class QueryDocumentSnapshot<AppModelType = DocumentData, DbModelType extends DocumentData = DocumentData> extends DocumentSnapshot<AppModelType, DbModelType>
Extends: DocumentSnapshot<AppModelType, DbModelType>
Methods
| Method | Modifiers | Description |
|---|---|---|
| data() | Retrieves all fields in the document as an Object. |
QueryDocumentSnapshot.data()
Retrieves all fields in the document as an Object.
Signature:
/** @override */
data(): AppModelType;
Returns:
AppModelType
An Object containing all fields in the document.