Is it necessary to manually unsubscribe using the ngOnDestroy hook when using the subject in Angular, or does Angular handle the unsubscribing automatically?
Is it necessary to manually unsubscribe using the ngOnDestroy hook when using the subject in Angular, or does Angular handle the unsubscribing automatically?
It is recommended to manually unsubscribe from all subscriptions inside the ngOnDestroy() method in order to follow best practices and avoid potential memory leaks.
The main purpose of the OnDestroy method, as stated in the Angular Docs, is to clean up before Angular destroys the directive/component. This includes unsubscribing Observables and detaching event handlers to avoid memory leaks. It should be called just before Angular destroys the directive/component. So, it is important to manually call the unsubscribe method in ngOnDestroy() to prevent memory leaks.
For more information on this topic, you can check out this article:
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