Observable.of is not a function

Question

I am having issue with importing Observable.of function in my project. My Intellij sees everything. In my code I have:

import {Observable} from          


        

Answer 1

Just to add,

if you're using many of them then you can import all using

import 'rxjs/Rx'; 

as mentioned by @Thierry Templier. But I think If you are using limited operator then you should import individual operator like

import 'rxjs/add/operator/filter';
import 'rxjs/add/operator/mergeMap';
import 'rxjs/add/observable/of';

as mentioned by @uksz.

Because 'rxjs/Rx' will import all the Rx components which definitely cost performance.