interval method
inherited
Creates an Observable that emits each item in the Stream after a given duration.
Example
new Observable.fromIterable([1, 2, 3])
.interval(new Duration(seconds: 1))
.listen((i) => print("$i sec"); // prints 1 sec, 2 sec, 3 sec
Implementation
Observable<T> interval(Duration duration) =>
transform(IntervalStreamTransformer<T>(duration));