close a modal while openning a new modal in angular code example

Example 1: angular modal dismisss

export class ModalPage {
  ...

  dismiss() {
    // using the injected ModalController this page
    // can "dismiss" itself and optionally pass back data
    this.modalCtrl.dismiss({
      'dismissed': true
    });
  }
}

Example 2: my angular modal popup is not closing automatically

<button type="button" class="close" data-dismiss="modal" #closeAddExpenseModal>×</button>