如何使用Angular 2将选定的p-下拉项添加到原始p-datatable列表中？

<p-dropdown [options]="dropdownOptions" [(ngModel)]="selectedOption"></p-dropdown>

dropdownOptions: any[] = [
  { label: 'Option 1', value: 'option1' },
  { label: 'Option 2', value: 'option2' },
  { label: 'Option 3', value: 'option3' }
];

selectedOption: any;

<p-dataTable [value]="originalList">
  <p-column field="name" header="Name"></p-column>
  <p-column field="age" header="Age"></p-column>
</p-dataTable>

originalList: any[] = [
  { name: 'John', age: 25 },
  { name: 'Jane', age: 30 },
  { name: 'Bob', age: 35 }
];

ngOnInit() {
  this.selectedOption.subscribe((option) => {
    if (option) {
      this.originalList.push(option);
    }
  });
}