QueryFieldFilterConstraint class

A QueryFieldFilterConstraint is used to narrow the set of documents returned by a Firestore query by filtering on one or more document fields. QueryFieldFilterConstraints are created by invoking where() and can then be passed to query() to create a new query instance that also contains this QueryFieldFilterConstraint.

Signature:

export declare class QueryFieldFilterConstraint extends QueryConstraint 

Extends: QueryConstraint

Properties

Property Modifiers Type Description
type (not declared) The type of this query constraint

QueryFieldFilterConstraint.type

The type of this query constraint

Signature:

readonly type = "where";