如何将merge和fromEvent运算符导入Angular 6，rxjs 6.2.0？

Question

I have a project written on Angular 5 and rxjs 5.5.5. how to correctly import it into Angular 6, rxjs 6.2.0? I can just write 'import {Observable,of, from } from 'rxjs';', but then i have a problem with 'merge' and 'fromEvent'

import {Observable} from 'rxjs/Observable';
import 'rxjs/add/observable/merge';
import 'rxjs/add/observable/fromEvent';

Please help me solve this problem

Answer 1

Checkout this migration document . Correct imports are:

import {
    Observable,
    fromEvent,
    merge
} from 'rxjs';