Rxjs 6 equivalent of Observable.create(subscriber -> {...}).share()
You need to pipe share() as follows instead of chaining:
const myObservable = Observable.create(subscriber => { // do something with the subscriber}).pipe(share());
Also make sure you import share as follows:
import {share} from 'rxjs/operators';
import { Observable } from "rxjs";...let obs$ = new Observable(...);...
Above code should do the trick