import { Component ,ViewEncapsulation, OnInit, OnDestroy} from '@angular/core'; import { Router, ActivatedRoute, Params } from '@angular/router'; import { SharedService } from '../shared/shared.service'; @Component({ selector: 'upgrade-cmp', moduleId: module.id, encapsulation: ViewEncapsulation.None, templateUrl: './upgrade.component.html', styleUrls: ['./upgrade.component.css'] }) export class UpgradeComponent implements OnInit, OnDestroy { constructor( private route: ActivatedRoute, public router: Router, public sharedService: SharedService, ) {} ngOnInit() { // initialize catalog data console.log('initialize catalog data'); this.sharedService.initializeDevices(); } ngOnDestroy() { } }