Readonly
isWhether or not this is the initial event being delivered.
Optional
Readonly
oldThe old representation of the document with the relveant document ID.
Returns a hash that represents the set of matching documents.
use Document.hash() instead.
Returns a pattern of words that together create a mnemonic, which represents the set of matching documents.
use Document.hashMnemonic() instead.
Provides information about a live query event relating to a single document live query.