broo the extended class approach is genius

@MonsterlessonsAcademy

Жыл бұрын

Thank you!

@programmistka_v_amerike

28 күн бұрын

Until for some reason we need to extend another class and TS doesn't support multiple inheritance. All the other solutions are indeed most used to avoid memory leakage. Also, multiple subscriptions can be also pushed to an array and looped through to unsubscribe from in the ngOnDestoy hook.

Excellent short and consolidated walkthrough. Thanks for posting.

@MonsterlessonsAcademy

Жыл бұрын

Glad to hear that!

High quality information as always. Many thanks Oleksandr!

@MonsterlessonsAcademy

2 жыл бұрын

My pleasure!

You are awesome sir, keep making videos like this !!! You are teaching a lot of newbies and experienced programmers!!

@MonsterlessonsAcademy

11 ай бұрын

Thank you, I will

superb explanation of all possible ways of avoiding memory leaks for RxJS subscriptions. Thank you so much ! 🙂

@MonsterlessonsAcademy

Жыл бұрын

You're welcome!

This is pretty awesome! Love that's it's so easy to implement but so valuable. Thanks!

@MonsterlessonsAcademy

2 жыл бұрын

Glad you like it!

The last part at 09:12 is very nice indeed. I really like this kind of work. A great solution for many applications. Once again, great content my friend. 👍

@MonsterlessonsAcademy

11 ай бұрын

Thank you very much!

Brilliant! Thank you.

@MonsterlessonsAcademy

Ай бұрын

You're very welcome!

Thank you ! Very useful information !

@MonsterlessonsAcademy

Жыл бұрын

You are welcome!

amazing explanation. super helpful!

@MonsterlessonsAcademy

11 ай бұрын

Glad it was helpful!

You provide very valuable content, thank you Olexander PS Olexander, consider creating new angular course but even more advanced than medium one - by saying more advanced i mean using bigger spectrum of RxJs operators, change detection strategy, NG rx, using facade pattern, and such tricks like this one with extending abstract class, strict mode, use of firebase? This is just my idea, but knowing your skills as a teacher and experienced developer it would be Very valuable and helpful for developers on any 'level', best regards and stay healthy!

@MonsterlessonsAcademy

2 жыл бұрын

Thank you for the idea. I will add it to the list of future courses!

This channel is underrated.

@MonsterlessonsAcademy

2 жыл бұрын

Thank you!

Amazing post. Maybe you'll make more with RxJS and also with complex Directives. Thank you!

@MonsterlessonsAcademy

2 жыл бұрын

Thank you for the idea!

Thank for your awesome content

@MonsterlessonsAcademy

Жыл бұрын

Glad you like it!

Legend! Thanks for the awesome content especially the custom takeUntil(), pretty useful

@MonsterlessonsAcademy

2 жыл бұрын

Glad you like them!

Дякую! Дуже круте відео, все чітко і зрозуміло!) Thanks a lot!)

@MonsterlessonsAcademy

Жыл бұрын

Glad to hear that!

Many Many Thanks to you sir, You make my day

@MonsterlessonsAcademy

10 ай бұрын

It's my pleasure

Thank you for the good content 🤩

@MonsterlessonsAcademy

2 жыл бұрын

Glad you enjoy it!

Best and straightforward...but i just see in my navbar one of your videos.. that async pipe is broken in Angular

@MonsterlessonsAcademy

10 ай бұрын

Yes, you are right kzread.info/dash/bejne/jG2Jm4-PgrHFiLg.htmlsi=WUum9t-zTDwQ078W

You re the best! Tnxx!

@MonsterlessonsAcademy

2 жыл бұрын

Thank you!

Excellent video, I think I'm gonna stick to async pipe and avoid suscriptions, Oninit and Ondestroy altogether in my code...

@MonsterlessonsAcademy

Жыл бұрын

Yeap. Or look into Signals if you use Angular 16

Thanks!

@MonsterlessonsAcademy

2 жыл бұрын

Thank you so much for your support! It means a lot to me.

Very nice video man, congrats! Could you make a video talking about the new operator released in Angular 16, the "takeUntilDestroyed()"

@MonsterlessonsAcademy

Жыл бұрын

Where did you find such method. Can you give a link?

Hello! I love your video so much. Where is the best place to support you? On your platform or udemy (as far as I know udemy takes some commission)?

@MonsterlessonsAcademy

2 жыл бұрын

Comission is everywhere -_-. Buying my courses or subscription on the website has the smallest comission and gives you knowledge in return. monsterlessons-academy.com/courses If you don't need a course but just want to support me there is a membership on youtube channel.

Hi, i find this approach very interesting also. DO you might wanna do a short video about that option too. takeUntilDestroyed with destroyRef which close "Automatically" the sub.

@MonsterlessonsAcademy

6 ай бұрын

Hi, I already did that kzread.info/dash/bejne/lpit2q2tlrKzobg.htmlsi=iAcYmh8rOUI-w6ZX

Awesome content on unsubscribe

@MonsterlessonsAcademy

Жыл бұрын

Happy to hear that!

Крутотень)

Nice video 👍 I would just like to mention that since version 16, Angular has introduced the "takeUntilDestroyed()" operator, which solves this problem. One question, why did you decorate the parent class "Unsub" with "@Injectable()"? In your example, it is not used as a service provided via dependency injection. Thanks!

@MonsterlessonsAcademy

5 ай бұрын

I covered takeUntilDestroyed in a separate video kzread.info/dash/bejne/lpit2q2tlrKzobg.htmlsi=i1RHZVQud8YKES4A Yes Unsub doesn't need injectable. It's just a habbit.

how would you call abstract unsub class while your component already extends other class? in typescript you cant extend two class. do you have any thoughts about that?

@MonsterlessonsAcademy

Жыл бұрын

You can't do that. Extend approach is not that popular in Angular at all. Typically you just inject services and use them.

amazing stuff, we need to call super right if we use this class as a common for all components ?

@MonsterlessonsAcademy

Жыл бұрын

Yes of course

@chagamajaykumarreddy1897

Жыл бұрын

Is this possible way of avoiding super inside constructor

@MonsterlessonsAcademy

Жыл бұрын

@@chagamajaykumarreddy1897 no, it's how prototypes are working in js

Sorry for the dumb question, but what if I have: data$ = interval(1000); const x$ = this.data$.pipe(take(1)); x$.subscribe((data) => console.log('data', data)); Which of the observables does the take(1) operator specifically complete?

@MonsterlessonsAcademy

11 ай бұрын

It's not dumb. x$ is a new observable based on data$. As you subscribe to x$ it has a take function

What should we do if we need ngOnDestory in the child component or how we can override it?

@MonsterlessonsAcademy

6 күн бұрын

override it an call super

you'll need a super() call in the component's constructor using / extending this class, otherwise TS will complain?

@MonsterlessonsAcademy

2 жыл бұрын

You are totally right. If you need to do anything in contructor you must call super.

Is it correct that we should use ReplaySubject, NOT Subject for unsubscription? After component destroyed it is possible that Subject is destroyed too, but subscription NOT. And subscription survive after destroy. But ReplaySubject can "shot" one more time after component destroy and subscription will be completed.

@MonsterlessonsAcademy

Жыл бұрын

You can but there is no memory leak is subscribes if you use takeUntil or unsubscribe. Doesn't matter if it is subject, behaivourSubject or replaySubject.

Premium content, useful information. Thank you

@MonsterlessonsAcademy

5 ай бұрын

Glad it was helpful!

Hi, can you tell us which IDE you are using? :)

@MonsterlessonsAcademy

8 ай бұрын

It's Vim

@candyroll7894

8 ай бұрын

@@MonsterlessonsAcademy Okie I am little confused as I am learning angular,should I use vscode or vim? I know it is just IDE but still which has better support?

@MonsterlessonsAcademy

8 ай бұрын

@@candyroll7894 You should use vscode and focus on learning programming and not configuring the editor which with vim will take a lot of time.

@candyroll7894

8 ай бұрын

@@MonsterlessonsAcademy thank you 😁

I still remember several projects where the people forgot to close subscriptions...

@MonsterlessonsAcademy

Жыл бұрын

Yeap. Happens all the time.

Should i unsubscribe route change as well

@MonsterlessonsAcademy

5 ай бұрын

Angular does it for us but I prefer to just unsub for every subscribe I see

Monster! 😂

Wait what? I was sure the component is destroy when not in the view anymore and by consequence all subscribe are unsubscribed…

@MonsterlessonsAcademy

Ай бұрын

Destroying doesn't have anything to do with the in view or not. Also you need to unsubscribe manually.

why don't we just use a promise for queries? this sounds like a potential problem in your app to troubleshoot.

@MonsterlessonsAcademy

Жыл бұрын

It's architecture of Angular team. I didn't have any problems or need to use promises in Angular.

I don’t feel like the video is useful at all, this can be found in angular doc and this is far from real life situation (interval really ? ..)

@MonsterlessonsAcademy

6 ай бұрын

It's the example to see that stream was canceled.

Last one approach is nice but it does not allow to use "ngOnDestroy" in the "Postscomponent" as it is already declared in "Unsub".

@mkrzyzowski

Жыл бұрын

but we can add "public unsubscribe(): void {" in "Unsub" and call it from "public override ngOnDestroy() {", "this.unsubscribe();" to solve it.

@MonsterlessonsAcademy

Жыл бұрын

exactly