This property fromEvent does not exist on type 'typeof Observable' Angular 6

Question

I am having a problem trying to create to turn the keyup events into an observable stream.

I am following the Ng-book version 6. I am stuck in an ex

Answer 1

In RxJS 5, you were writing

import { Observable } from 'rxjs/Observable';
import 'rxjs/add/observable/of';
import 'rxjs/add/operator/map';

The imports changed for RxJS 6

import { Observable, of, Subject, Subscription } from 'rxjs';
import { map, filter, debounceTime, distinctUntilChanged } from 'rxjs/operators';

For more information, have a look at the RxJS migration guide.