Function cleanUpFormContainer

packages/forms/src/directives/shared.ts:332–337

(
  control: FormGroup | FormArray,
  dir: AbstractFormGroupDirective | FormArrayName,
)

 * @returns true if a control was updated as a result of this action.
 */
export function cleanUpFormContainer(
  control: FormGroup | FormArray,
  dir: AbstractFormGroupDirective | FormArrayName,
): boolean {
  return cleanUpValidators(control, dir);
}

function _noControlError(dir: NgControl) {
  return _throwError(dir, 'There is no FormControl instance attached to form control element with');