// Die Component ersetzt die Direktive <myApp> durch die eigentliche Anwendung
 import { Component, OnInit } from '@angular/core';
 import { Weather }      from './weather';
 import { StackService } from './stack.service';

 @Component({
   selector: 'myApp',
   templateUrl: 'app/app.component.html',
 })
 export class AppComponent implements OnInit {
   datas: Weather[] = [];
   model: Weather = new Weather(8, 1080);
   constructor(private stackService: StackService) {}
   avg(field: string): number { return this.stackService.avg(field); };
   add(): void { this.stackService.add(new Weather(this.model.temp, this.model.press)); };
   ngOnInit(): void { this.datas = this.stackService.datas}
 }