Method constructor

packages/forms/src/model/form_array.ts:139–157

* Creates a new `FormArray` instance. * * @param controls An array of child controls. Each child control is given an index * where it is registered. * * @param validatorOrOpts A synchronous validator function, or an array of * such functions, or an `AbstractControlOptions` object t

(
    controls: Array<TControl>,
    validatorOrOpts?: ValidatorFn | ValidatorFn[] | AbstractControlOptions | null,
    asyncValidator?: AsyncValidatorFn | AsyncValidatorFn[] | null,
  )

   *
   */
  constructor(
    controls: Array<TControl>,
    validatorOrOpts?: ValidatorFn | ValidatorFn[] | AbstractControlOptions | null,
    asyncValidator?: AsyncValidatorFn | AsyncValidatorFn[] | null,
  ) {
    super(pickValidators(validatorOrOpts), pickAsyncValidators(asyncValidator, validatorOrOpts));
    this.controls = controls;
    this._initObservables();
    this._setUpdateStrategy(validatorOrOpts);
    this._setUpControls();
    this.updateValueAndValidity({
      onlySelf: true,
      // If `asyncValidator` is present, it will trigger control status change from `PENDING` to
      // `VALID` or `INVALID`.
      // The status should be broadcasted via the `statusChanges` observable, so we set `emitEvent`
      // to `true` to allow that during the control creation process.
      emitEvent: !!this.asyncValidator,
    });
  }

  public controls: ɵTypedOrUntyped<TControl, Array<TControl>, Array<AbstractControl<any>>>;