[Solved] Why should Angular developers implement the ngOnDestroy lifecycle hook in their components? — Ans: To release resources like subscriptions and timers before the component is... | Angular

Angular - Lifecycle Hooks

Why should Angular developers implement the ngOnDestroy lifecycle hook in their components?

ATo handle user input events during component interaction

BTo initialize component data after the view is rendered

CTo release resources like subscriptions and timers before the component is removed

DTo define the component's template and styles

Step-by-Step Solution

Solution:

Step 1: Understand ngOnDestroy's role
The ngOnDestroy hook is called just before Angular destroys the component.
Step 2: Purpose of ngOnDestroy
It is used to clean up resources such as subscriptions, timers, or event listeners to prevent memory leaks.
Final Answer:
To release resources like subscriptions and timers before the component is removed -> Option C
Quick Check:
Cleanup before destruction [OK]

Quick Trick: Use ngOnDestroy to clean resources before component removal [OK]

Common Mistakes:

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Why should Angular developers implement the ngOnDestroy lifecycle hook in their components?