@reactivex/rxjs/src/add/operator/exhaustMap.ts

Reactive Extensions for modern JavaScript

import {Observable} from '../../Observable';
import {exhaustMap, SwitchFirstMapSignature} from '../../operator/exhaustMap';

Observable.prototype.exhaustMap = exhaustMap;

declare module '../../Observable' {
  interface Observable<T> {
    exhaustMap: SwitchFirstMapSignature<T>;
  }
}