Rx.Observable.repeat(value, [repeatCount], [scheduler])
Generates an observable sequence that repeats the given element the specified number of times, using the specified scheduler to send out observer messages.
Arguments
value(Any): Element to repeat.[repeatCount=-1](Number):Number of times to repeat the element. If not specified, repeats indefinitely.[scheduler=Rx.Scheduler.immediate](Scheduler): Scheduler to run the producer loop on. If not specified, defaults to Scheduler.immediate.
Returns
(Observable): An observable sequence that repeats the given element the specified number of times.