export class StarterorderPage implements OnInit {
  $orders: [
    { id: number, description: string }
  ];
  constructor( public http: HttpClient, private route: ActivatedRoute) { }

  ngOnInit() {
  }

  MyFunction() {
    this.$orders[0].id = 230;
    this.$orders[0].description = 'descricao numero duzentos e trinta ';
    console.log('->', this.$orders[0].id, this.$orders[0].description);
  }