demo/src/app/components/+typeahead/demos/reactive-form/reactive-form.html
<pre class="card card-block card-header">Model: {{myForm.value.state | json}}</pre>
<form [formGroup]="myForm">
<input formControlName="state"
[typeahead]="states"
[typeaheadOptionsLimit]="7"
[typeaheadMinLength]="0"
placeholder="Typeahead inside a form"
class="form-control">
</form>