Which of the following is the correct syntax to implement the OnDestroy lifecycle hook in an Angular component?

easy📝 Syntax Q12 of 15

Angular - Components

Which of the following is the correct syntax to implement the OnDestroy lifecycle hook in an Angular component?

Aclass MyComponent implements OnDestroy { ngDestroy() { } }

Bclass MyComponent implements OnDestroy { ngOnDestroy() { } }

Cclass MyComponent { onDestroy() { } }

Dclass MyComponent implements OnDestroy { destroy() { } }

Step-by-Step Solution

Solution:

Step 1: Recall correct method name
The lifecycle hook method for destruction is ngOnDestroy().
Step 2: Check interface implementation
Implementing OnDestroy requires defining ngOnDestroy() exactly.
Final Answer:
class MyComponent implements OnDestroy { ngOnDestroy() { } } -> Option B
Quick Check:
OnDestroy method = ngOnDestroy() [OK]

Quick Trick: Method name must be ngOnDestroy() exactly [OK]

Common Mistakes:

Master "Components" 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