Select Dropdowns in Angular 2 a built with select and option elements. You use *ngFor to loop through your values and create options and use ngModel to keep track of the value as it changes.
<form #formRef="ngForm">
<select name="location" [ngModel]="locations[0]">
<option
*ngFor="let location of locations"
[value]="location"> {{location}} </option>
</select>
</form>