FormCheckboxDirective.
<input type="checkbox" formControlName="privacy" [value]="true" requiredTrue />
<input type="checkbox" [formControl]="control" [value]="true" requiredTrue />
FormCheckboxDirective.
<input type="checkbox" formControlName="privacy" [value]="true" requiredTrue />
<input type="checkbox" [formControl]="control" [value]="true" requiredTrue />