import { Observable } from '../Observable'; import { SchedulerLike } from '../types'; import { subscribeToPromise } from '../util/subscribeToPromise'; import { schedulePromise } from '../scheduled/schedulePromise'; export function fromPromise<T>(input: PromiseLike<T>, scheduler?: SchedulerLike) { if (!scheduler) { return new Observable<T>(subscribeToPromise(input)); } else { return schedulePromise(input, scheduler); } }