Which of the following is the correct way to unsubscribe from a subscription in Angular's ngOnDestroy method?

easy📝 Syntax Q12 of 15

Angular - RxJS and Observables Fundamentals

Which of the following is the correct way to unsubscribe from a subscription in Angular's ngOnDestroy method?

Athis.subscription.unsubscribe();

Bthis.subscription.stop();

Cthis.subscription.close();

Dthis.subscription.cancel();

Step-by-Step Solution

Solution:

Step 1: Recall Subscription API
The Subscription object has an unsubscribe() method to stop listening.
Step 2: Identify correct method name
Only unsubscribe() is valid; others do not exist on Subscription.
Final Answer:
this.subscription.unsubscribe(); -> Option A
Quick Check:
Use unsubscribe() to stop subscription = D [OK]

Quick Trick: Use unsubscribe() method to stop subscriptions [OK]

Common Mistakes:

MISTAKES

Master "RxJS and Observables Fundamentals" in Angular

9 interactive learning modes - each teaches the same concept differently

Want More Practice?

15+ quiz questions · All difficulty levels · Free

More Angular Quizzes