export class Appchild2Component implements OnInit { count: number; constructor(private appsevice: AppService) { } ngOnInit() { this.appsevice.count.subscribe(c => { this.count = c; }); } nextCount() { this.appsevice.nextCount(); } }
export class Appchild2Component implements OnInit { count: number; constructor(private appsevice: AppService) { } ngOnInit() { this.appsevice.count.subscribe(c => { this.count = c; }); } nextCount() { this.appsevice.nextCount(); } }