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  1. import { Observable } from '../Observable';
  2. import { SchedulerLike } from '../types';
  3. import { Subscription } from '../Subscription';
  4. export function scheduleArray<T>(input: ArrayLike<T>, scheduler: SchedulerLike) {
  5. return new Observable<T>(subscriber => {
  6. const sub = new Subscription();
  7. let i = 0;
  8. sub.add(scheduler.schedule(function () {
  9. if (i === input.length) {
  10. subscriber.complete();
  11. return;
  12. }
  13. subscriber.next(input[i++]);
  14. if (!subscriber.closed) {
  15. sub.add(this.schedule());
  16. }
  17. }));
  18. return sub;
  19. });
  20. }