How to cancel a subscription in Angular2

Question

How does one cancel a subscription in Angular2? RxJS seems to have a dispose method, but I can\'t figure out how to access it. So I have code that has access to an EventEm

Answer 1

ngOnDestroy(){
   mySubscription.unsubscribe();
}

Prefer unsubscribing rxjs unsubscribe's while destroying the component i.e., removing from DOM for avoiding unecessary memory leaks

Answer 2

Use

if(mySubscription){
  mySubscription.unsubscribe();
}