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getDocFromCache() function

Reads the document referred to by this DocumentReference from cache. Returns an error if the document is not currently cached.

Signature:

export declare function getDocFromCache<T>(reference: DocumentReference<T>): Promise<DocumentSnapshot<T>>;

Parameters

Parameter	Type	Description
reference	DocumentReference<T>

Returns:

Promise<DocumentSnapshot<T>>

A Promise resolved with a DocumentSnapshot containing the current document contents.