<!-- #docplaster -->
<!-- #docregion formgroup -->
<form [formGroup]="profileForm">
  
  <label>
    First Name:
    <input type="text" formControlName="firstName">
  </label>

  <label>
    Last Name:
    <input type="text" formControlName="lastName">
  </label>

<!-- #enddocregion formgroup -->
  <!-- #docregion formgroupname -->
  <div formGroupName="address">
    <h3>Address</h3>

    <label>
      Street:
      <input type="text" formControlName="street">
    </label>

    <label>
      City:
      <input type="text" formControlName="city">
    </label>
    
    <label>
      State:
      <input type="text" formControlName="state">
    </label>

    <label>
      Zip Code:
      <input type="text" formControlName="zip">
    </label>
  </div>
  <!-- #enddocregion formgroupname -->

  <div formArrayName="aliases">
    <h3>Aliases</h3> <button (click)="addAlias()">Add Alias</button>

    <div *ngFor="let address of aliases.controls; let i=index">
      <!-- The repeated alias template -->
      <label>
        Alias:
        <input type="text" [formControlName]="i">
      </label>
    </div>
  </div>
<!-- #docregion formgroup -->  
</form>
<!-- #enddocregion formgroup -->

<p>
  Form Value: {{ profileForm.value | json }}
</p>

<!-- #docregion patch-value -->
<p>
  <button (click)="updateProfile()">Update Profile</button>
</p>
<!-- #enddocregion patch-value -->