ScanStreamTransformer<T, S> class

Applies an accumulator function over an observable sequence and returns each intermediate result. The optional seed value is used as the initial accumulator value.

Example

new Stream.fromIterable([1, 2, 3])
   .transform(new ScanStreamTransformer((acc, curr, i) => acc + curr, 0))
   .listen(print); // prints 1, 3, 6
Inheritance

Constructors

ScanStreamTransformer(_ScanStreamTransformerAccumulator<T, S> accumulator, [ S seed ])

Properties

accumulator → _ScanStreamTransformerAccumulator<T, S>
final
seed → S
final
hashCode int
The hash code for this object. [...]
read-only, inherited
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited

Methods

bind(Stream<T> stream) Stream<S>
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 non-existent method or property is accessed. [...]
inherited
toString() String
Returns a string representation of this object.
inherited

Operators

operator ==(dynamic other) bool
The equality operator. [...]
inherited