FieldValue class abstract

Constructors

FieldValue.arrayRemove(List<Object?> elements)
Returns a special value that can be used with set(), create() or update() that tells the server to remove the given elements from any array value that already exists on the server. All instances of each element specified will be removed from the array. If the field being modified is not already an array it will be overwritten with an empty array.
const
factory
FieldValue.arrayUnion(List<Object?> elements)
Returns a special value that can be used with set(), create() or update() that tells the server to union the given elements with any array value that already exists on the server. Each specified element that doesn't already exist in the array will be added to the end. If the field being modified is not already an array it will be overwritten with an array containing exactly the specified elements.
const
factory
FieldValue.increment(num n)
Returns a special value that can be used with set(), create() or update() that tells the server to increment the the field's current value by the given value.
const
factory

Properties

hashCode → int
The hash code for this object.
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Constants

delete → const FieldValue
Returns a sentinel for use with update() to mark a field for deletion.
serverTimestamp → const FieldValue
Returns a sentinel used with set(), create() or update() to include a server-generated timestamp in the written data.