Method push

packages/forms/src/model/form_array.ts:184–196

* Insert a new `AbstractControl` at the end of the array. * * @param control Form control to be inserted * @param options Specifies whether this FormArray instance should emit events after a new * control is added. * * `emitEvent`: When true or not supplied (the default), both the

(control: TControl | Array<TControl>, options: {emitEvent?: boolean} = {})

   * NOTE: Pushing to the FormArray will not mark it dirty. If you want to mark if dirty, call `markAsDirty()`.
   */
  push(control: TControl | Array<TControl>, options: {emitEvent?: boolean} = {}): void {
    if (Array.isArray(control)) {
      control.forEach((ctrl) => {
        this.controls.push(ctrl);
        this._registerControl(ctrl);
      });
    } else {
      this.controls.push(control);
      this._registerControl(control);
    }
    this.updateValueAndValidity({emitEvent: options.emitEvent});
    this._onCollectionChange();
  }

  /**
   * Insert a new `AbstractControl` at the given `index` in the array.