@omneedia/socketcluster/sample/node_modules/rxjs/src/add/operator/mergeMap.ts

SocketCluster - A Highly parallelized WebSocket server cluster to make the most of multi-core machines/instances.

import { Observable } from '../../Observable';
import { mergeMap } from '../../operator/mergeMap';

Observable.prototype.mergeMap = <any>mergeMap;
Observable.prototype.flatMap = <any>mergeMap;

declare module '../../Observable' {
  interface Observable<T> {
    flatMap: typeof mergeMap;
    mergeMap: typeof mergeMap;
  }
}