Function emailValidator

packages/forms/src/validators.ts:519–524

(control: AbstractControl)

 * See `Validators.email` for additional information.
 */
export function emailValidator(control: AbstractControl): ValidationErrors | null {
  if (isEmptyInputValue(control.value)) {
    return null; // don't validate empty values to allow optional controls
  }
  return EMAIL_REGEXP.test(control.value) ? null : {'email': true};
}

/**
 * Validator that requires the number of items in the control's value to be greater than or equal