MapToStreamTransformer<S, T> class

Emits the given constant value on the output Stream every time the source Stream emits a value.

Example

Stream.fromIterable([1, 2, 3, 4])
  .mapTo(true)
  .listen(print); // prints true, true, true, true

Inheritance

• Object
• StreamTransformerBase<S, T>
• MapToStreamTransformer

Constructors

MapToStreamTransformer(T value)

Constructs a StreamTransformer which always maps every event from the source Stream to a constant value.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

value → T

A constant value which will always be returned when using this transformer.

final

Methods

bind(Stream<S> stream) → Stream<T>

Transforms the provided stream.

override

cast<RS, RT>() → StreamTransformer<RS, RT>

Provides a StreamTransformer<RS, RT> view of this stream transformer.

inherited

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