typescript - Angular2 rxjs missing observable.interval method

Question

I'm trying to use the interval method of an observable but I keep getting the error

 Property 'interval' does not exist on type 'Observable<any>'.

I added these imports:

import "rxjs/Rx";
import "rxjs/add/observable/interval";
import "rxjs/observable/IntervalObservable";

Answer 1

You need to import the Observable class this way to be able to use the interval method:

import {Observable} from 'rxjs/Rx';

or

import {Observable} from 'rxjs/Observable';
import 'rxjs/add/observable/interval';