Was istchange event in Angular 2? Wann wird es verschickt und wie kann ich es verwenden?
ICH. e. Was habe ich in folgendem Code über @ abonnier(change)="update()"?

http: //plnkr.co/edit/mfoToOSLU6IU2zr0A8OB? p = preview

import {Component, View, Input, Output, EventEmitter, OnChanges} from '@angular/core'

@Component({
  selector: 'inner-component',
  template: `
    <label><input type="checkbox" [(ngModel)]="data.isSelected"> Selected</label>
  `
})
export class InnerComponent {
  data = { isSelected: false };
}

@Component({
  selector: 'my-app',
  template: `
    <p><inner-component (change)="update()"></inner-component></p>
    <p>The component was updated {{count}} times</p>
  `,
  directives: [InnerComponent]
})
export class AppComponent {
  count = 0;

  update() {
    ++this.count;
  }
}

PS: Dieselbe Frage auf Russisch.