ngstyle

Useage of Ngstyle using methods 

@Component({

  selector: 'ngstyle-example',
  template: `<h4>NgStyle</h4>
<ul *ngFor="let person of people">
  <li [ngStyle]="{'color':getColor(person.country)}"> {{ person.name }} ({{ person.country }}) (1)
  </li>
</ul>
 `
})
class NgStyleExampleComponent {

  getColor(country) { (2)
    switch (country) {
      case 'UK':
        return 'green';
      case 'USA':
        return 'blue';
      case 'HK':
        return 'red';
    }
  }

  people: any[] = [
    {
      "name": "Douglas  Pace",
      "country": 'UK'
    },
    {
      "name": "Mcleod  Mueller",
      "country": 'USA'
    },
    {
      "name": "Day  Meyers",
      "country": 'HK'
    },
    {
      "name": "Aguirre  Ellis",
      "country": 'UK'
    },
    {
      "name": "Cook  Tyson",
      "country": 'USA'
    }
  ];
}