import { Component , NgZone } from '@angular/core' ; import { DemoSharedFirebaseDatabase } from '@demo/shared' ; import { } from '@nativescript/firebase-database' ; @ Component ( { selector : 'demo-firebase-database' , templateUrl : 'firebase-database.component.html' , } ) export class FirebaseDatabaseComponent { demoShared : DemoSharedFirebaseDatabase ; constructor ( private _ngZone ) { } ngOnInit ( ) { this . demoShared = new DemoSharedFirebaseDatabase ( ) ; } }