ComputedSignal<T, V> class

A read-only signal whose value is derived from another signal.

Use this when you need a computed/derived value from a signal that lives in the same node, without the verbosity of TransformBridgeSignal.

late final total = registerSignal(
  ComputedSignal(products, (list) => list.fold<double>(
    0.0, (prev, e) => prev + e.price,
  )),
);

Inheritance

• Object
• BaseSignal<V>
• ComputedSignal

Constructors

ComputedSignal(BaseSignal<T> _source, V _transform(T))

Properties

attachedNode ↔ Node

late, final, inherited

controller → StreamController<V>

final, inherited

hashCode → int

The hash code for this object.

no setter, inherited

readable → ReadableSignal<V>

Readable proxy for use with generated Readable* classes.

late, final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

stream → Stream<V>

no setter, inherited

streamTriggerImmediatly → Stream<V>

no setter, inherited

unsafeValue ↔ V

getter/setter pair, inherited

value → V

no setter, inherited

Methods

dispose() → void

override

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