类型'Observable <string []>'上不存在属性'延迟'

Question

使用rxjs后升级到angular6少数问题

import {
  Observable,
  Subject,
  asapScheduler,
  pipe,
  of,
  from,
  interval,
  merge,
  fromEvent
} from "rxjs";

import { delay } from "rxjs/operators";

let obser = from([ 1, 2, 3 ]).delay( 3000 );

"可观察"类型上不存在"延迟"属性

在角度5这工作正常

  import { Observable } from 'rxjs/Observable';
  let obser = Observable.from([ 1, 2, 3 ]).delay(3000);

Answer 1

Angular 6附带rxjs 6,它们有一些不同之处.在rxjs 6中,您通过管道链接运算符:

let obser = from([ 1, 2, 3 ])
    .pipe(
        delay( 3000 )
    );