Is there any lifecycle hook like [removed] in Angular2?

Question

Is there any lifecycle hook like window.onbeforeunload in Angular2? I already googled and searched on stackoverflow, but found nothing

Answer 1

Günter Zöchbauer's answer is slightly wrong on two one count, this is what worked for me:

@Component({ 
  selector: 'xxx',
  ..
)}
class MyComponent {
  @HostListener('window:beforeunload', ['$event'])
  doSomething($event) {
    if(this.hasChanges) $event.returnValue='Your data will be lost!';
  }
}

There are two main differences from Günter's answer:

1. The argument to @HostListener should be window:beforeunload and not window:onbeforeunload
2. The handler shouldn't return the message, but should assign it into $event.returnValue instead