Error: Property timer doesn't exist on type typeof Observable

Question

The code is below

import {Component} from \'angular2/core\';
import {Observable} from \'rxjs/Rx\';

@Component({
selector: \'my-app\',
template: \'Ticks (every s         


        

Answer 1

Thats because you havent patched the timer method into the Observable prototype.

Update: Rxjs 6.0.0

Import the creation method as a static pure function:

import { timer } from 'rxjs';
let timer$ = timer(2000,1000);

Original answer:

You have 2 options:

1) Patch the method with:

import 'rxjs/add/observable/timer';

2) Import the operator as a static pure function:

import { timer } from 'rxjs/observable/timer';
let timer$ = timer(2000,1000);

Personally I would recommend the 2nd approach.