isObservable.ts
380 Bytes
import { Observable } from '../Observable';
import { ObservableInput } from '../types';
/**
* Tests to see if the object is an RxJS {@link Observable}
* @param obj the object to test
*/
export function isObservable<T>(obj: any): obj is Observable<T> {
return !!obj && (obj instanceof Observable || (typeof obj.lift === 'function' && typeof obj.subscribe === 'function'));
}