WhereTypeStreamTransformer<S, T> class

This transformer is a shorthand for Stream.where followed by Stream.cast.

Events that do not match T are filtered out, the resulting Stream will be of Type T.

Example

Stream.fromIterable([1, 'two', 3, 'four'])
  .whereType<int>()
  .listen(print); // prints 1, 3

// as opposed to:

Stream.fromIterable([1, 'two', 3, 'four'])
  .where((event) => event is int)
  .cast<int>()
  .listen(print); // prints 1, 3
Inheritance

Constructors

WhereTypeStreamTransformer()
Constructs a StreamTransformer which combines Stream.where followed by Stream.cast.

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

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