Question

 import { Observable, of } from "rxjs";

// And if I try to return like this
  return Observable.of(this.purposes);

我收到一条错误声明，“属性''在类型'上不存在'typeof Observable'

Answer 1

看起来cartant的评论是正确的，RxJS upgrade guide没有特别涵盖该方法，但确实说“对可观察对象进行操作的类已被函数替换”

这似乎意味着所有或大多数类方法，如.of，.throw等已被函数替换

所以而不是

import { Observable, of } from "rxjs";
Observable.of(this.purposes);

DO

import { of } from "rxjs";
of(this.purposes);

Answer 2

rxjs 6

import { PreloadingStrategy, Route } from '@angular/router';
import { Observable, of } from 'rxjs';

export class SelectivePreloadingStrategy implements PreloadingStrategy {
    preload(route: Route, load: Function): Observable<any> {
       return route.data && route.data.preload === false ? of(null) : load();
    }

 }

Answer 3

为避免使用black-list linting of the rxjs，请像这样导入它们：

import { Observable } from 'rxjs/Observable';
import { of } from 'rxjs/observable/of';

无法在RxJs 6和Angular 6中使用Observable.of

3 个答案: