import { NgModule, ApplicationRef } from '@angular/core'; import { AppComponent } from './app.component'; import { AppRoutingModule } from './app-routing.module'; import { CoreModule } from './core/core.module'; import { ServiceWorkerModule } from '@angular/service-worker'; import { environment } from '../environments/environment'; @NgModule({ imports: [ AppRoutingModule, CoreModule.forRoot(), ServiceWorkerModule.register('/sw-app.js', { enabled: environment.production }) ], declarations: [ AppComponent ], providers: [], bootstrap: [AppComponent] }) export class AppModule { }