Which of the following is the correct syntax to define the ngOnDestroy method in an Angular component?

easy📝 Syntax Q3 of 15

Angular - Lifecycle Hooks

Which of the following is the correct syntax to define the ngOnDestroy method in an Angular component?

AngOnDestroy() => { /* cleanup code here */ }

Bdestroy() { /* cleanup code here */ }

Cfunction ngOnDestroy() { /* cleanup code here */ }

DngOnDestroy(): void { /* cleanup code here */ }

Step-by-Step Solution

Solution:

Step 1: Recall Angular lifecycle method syntax
Lifecycle hooks are class methods with specific names and signatures.
Step 2: Identify correct method signature for ngOnDestroy
ngOnDestroy is a method with no parameters and returns void, defined as ngOnDestroy(): void { }.
Final Answer:
ngOnDestroy(): void { /* cleanup code here */ } -> Option D
Quick Check:
ngOnDestroy syntax = method with void return [OK]

Quick Trick: Use method syntax with void return for ngOnDestroy [OK]

Common Mistakes:

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