Angular Select

my.component.html

<select [(ngModel)]="myValue">
  <option *ngFor="let s of stuff" [value]="s.value">{{s.key}}</option>
</select>

my.component.ts

import { Component } from '@angular/core';

export interface MyStuff {
  key: string;
  value: number;
}

@Component({
  selector: 'app-my',
  templateUrl: './my.component.html'
})
export class MyComponent {
  public stuff = [
    new <MyStuff>({key: 'Unknown', value: 0}),
    new <MyStuff>({key: 'Primary', value: 1}),
    new <MyStuff>({key: 'Secondary', value: 2})
  ];
  
  public myValue: number;      
}