Use takeUntilDestroyed to Unsubscribe from Angular's Observables

The takeUntilDestroyed operator, introduced in Angular version 16, automatically unsubscribes from an observable when its component or service is destroyed. This prevents the need to manually unsubscribe.

In this video, we examine the takeUntilDestroyed operator and how it can prevent memory leaks. We resolve a common error ("takeUntilDestroyed can only be used within an injection context") and discover DestroyRef. And we look at some caveats with the order of RxJS operations when using takeUntilDestroyed.

Links
Code: https://stackblitz.com/~/edit/takeunt...

Documentation: https://angular.dev/api/core/rxjs-int...

Content
00:00 takeUntilDestroyed
00:18 Rule of Subscriptions
00:38 Memory leak in action
02:36 Manually unsubscribing
03:19 Unsubscribing with takeUntilDestroyed
04:12 Error: Only available within an injection context
06:10 Using DestroyRef
07:10 Caveat: Order of operations
10:08 Wrap up

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😊About Me
Hey! I'm Deborah Kurata
I'm a software developer and YouTube content creator. I speak at conferences such as VSLive and ng-conf. I write articles for freeCodeCamp. And I'm a Pluralsight author with courses in the top 10 most popular (out of 7,000+) for over 5 years. For my work in support of software developers, I've been recognized with the Microsoft Most Valuable Professional (MVP) award, and I'm a Google Developer Expert (GDE).

View my YouTube content:    / @deborah_kurata  
Contact me on Twitter:   / deborahkurata  
Find my Pluralsight courses: https://www.pluralsight.com/profile/a...
Access my freeCodeCamp articles: https://www.freecodecamp.org/news/aut...

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