QueryConstraint class

A QueryConstraint is used to narrow the set of documents returned by a Firestore query. QueryConstraints are created by invoking where(), orderBy(), startAt(), startAfter(), endBefore(), endAt(), limit(), limitToLast() and can then be passed to query() to create a new query instance that also contains this QueryConstraint.

Signature:

export declare abstract class QueryConstraint 

Properties

QueryConstraint.type

The type of this query constraint

Signature:

abstract readonly type: QueryConstraintType;