-import { Route, PreloadingStrategy } from '@angular/router';
-import { Observable } from 'rxjs/Observable';
-import 'rxjs/add/observable/timer';
-import 'rxjs/add/operator/switchMap';
+import { Observable, timer as observableTimer, of as ofObservable } from 'rxjs'
+import { switchMap } from 'rxjs/operators'
+import { PreloadingStrategy, Route } from '@angular/router'
export class PreloadSelectedModulesList implements PreloadingStrategy {
- preload(route: Route, load: Function): Observable<any> {
- if (!route.data || !route.data.preload) return Observable.of(null);
+ preload (route: Route, load: Function): Observable<any> {
+ if (!route.data || !route.data.preload) return ofObservable(null)
if (typeof route.data.preload === 'number') {
- return Observable.timer(route.data.preload).switchMap(() => load());
+ return observableTimer(route.data.preload).pipe(switchMap(() => load()))
}
- return load();
+ return load()
}
}