import { NgModule } from '@angular/core' ; import { BrowserModule } from '@angular/platform-browser' ; import { NgbModule } from '@ng-bootstrap/ng-bootstrap' ; import { ToastrModule } from 'ngx-toastr' ; export function getRootModule ( plugins ) { const imports = [ BrowserModule , ... plugins , NgbModule , ToastrModule . forRoot ( { positionClass : 'toast-bottom-center' , toastClass : 'toast' , preventDuplicates : true , extendedTimeOut : 1000 , } ) , ] ; const bootstrap = [ ... plugins . filter ( x => x . bootstrap ) . map ( x => x . bootstrap ) , ] ; if ( bootstrap . length === 0 ) { throw new Error ( 'Did not find any bootstrap components. Are there any plugins installed?' ) ; } @ NgModule ( { imports , bootstrap , } ) class RootModule { } return RootModule ; }