Angular2 rxjs missing observable.interval method

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';

If you want to create an interval (Observable) with rxjs v6.2.1:

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

const counter = interval(1000); 

// instead of:
// const counter = Observable.interval(1000);

It's possible too, for:

"rxjs": "6.3.3"
"rxjs-compat": "^6.5.5"

import { Component, OnInit } from '@angular/core';
import { interval } from 'rxjs';

@Component({
  selector: 'app-home',
  templateUrl: './home.component.html',
  styleUrls: ['./home.component.css']
})
export class HomeComponent implements OnInit {

  constructor() { }

  ngOnInit() {
    const myNumber = interval(1000);
    myNumber.subscribe(
      (number: number) => {
        console.log(number);
      }
    );
  }

}