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.
@riketscience Жыл бұрын
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 Жыл бұрын
Thank you very much!
@izacaqsha3480 Жыл бұрын
You are awesome sir, keep making videos like this !!! You are teaching a lot of newbies and experienced programmers!!
@MonsterlessonsAcademy Жыл бұрын
Thank you, I will
@chinmayapandya8990 Жыл бұрын
superb explanation of all possible ways of avoiding memory leaks for RxJS subscriptions. Thank you so much ! 🙂
@MonsterlessonsAcademy Жыл бұрын
You're welcome!
@bizmarinainfo1808 Жыл бұрын
Excellent short and consolidated walkthrough. Thanks for posting.
@MonsterlessonsAcademy Жыл бұрын
Glad to hear that!
@rizaanjappie2 жыл бұрын
This channel is underrated.
@MonsterlessonsAcademy2 жыл бұрын
Thank you!
@hamza2011832 жыл бұрын
High quality information as always. Many thanks Oleksandr!
@MonsterlessonsAcademy2 жыл бұрын
My pleasure!
@krzaqabc2 жыл бұрын
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!
@MonsterlessonsAcademy2 жыл бұрын
Thank you for the idea. I will add it to the list of future courses!
@lianayukhymchak5328 Жыл бұрын
Дякую! Дуже круте відео, все чітко і зрозуміло!) Thanks a lot!)
@MonsterlessonsAcademy Жыл бұрын
Glad to hear that!
@valikonen2 жыл бұрын
Amazing post. Maybe you'll make more with RxJS and also with complex Directives. Thank you!
@MonsterlessonsAcademy2 жыл бұрын
Thank you for the idea!
@transforgoku Жыл бұрын
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
@kirole738111 ай бұрын
Best and straightforward...but i just see in my navbar one of your videos.. that async pipe is broken in Angular
@MonsterlessonsAcademy11 ай бұрын
Yes, you are right kzfaq.info/get/bejne/kJ-FbJCHt7TDiIk.htmlsi=WUum9t-zTDwQ078W
@mrlindaring2 ай бұрын
Brilliant! Thank you.
@MonsterlessonsAcademy2 ай бұрын
You're very welcome!
@its_vincesanity2 жыл бұрын
This is pretty awesome! Love that's it's so easy to implement but so valuable. Thanks!
@MonsterlessonsAcademy2 жыл бұрын
Glad you like it!
@msiyam Жыл бұрын
Many Many Thanks to you sir, You make my day
@MonsterlessonsAcademy11 ай бұрын
It's my pleasure
@mirodz21 Жыл бұрын
amazing explanation. super helpful!
@MonsterlessonsAcademy Жыл бұрын
Glad it was helpful!
@tarasshevchuk8477 Жыл бұрын
Thank you ! Very useful information !
@MonsterlessonsAcademy Жыл бұрын
You are welcome!
@ugochukwuumerie63782 жыл бұрын
Legend! Thanks for the awesome content especially the custom takeUntil(), pretty useful
@MonsterlessonsAcademy2 жыл бұрын
Glad you like them!
@ndthinh91 Жыл бұрын
Thank for your awesome content
@MonsterlessonsAcademy Жыл бұрын
Glad you like it!
@BennyS65026 ай бұрын
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!
@MonsterlessonsAcademy6 ай бұрын
I covered takeUntilDestroyed in a separate video kzfaq.info/get/bejne/msqpq66ly7WxoYk.htmlsi=i1RHZVQud8YKES4A Yes Unsub doesn't need injectable. It's just a habbit.
@ali.shahnawaz Жыл бұрын
Awesome content on unsubscribe
@MonsterlessonsAcademy Жыл бұрын
Happy to hear that!
@danilo_teixeira Жыл бұрын
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?
@imriharlev51512 жыл бұрын
Thank you for the good content 🤩
@MonsterlessonsAcademy2 жыл бұрын
Glad you enjoy it!
@leiayuri7 ай бұрын
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.
@MonsterlessonsAcademy7 ай бұрын
Hi, I already did that kzfaq.info/get/bejne/msqpq66ly7WxoYk.htmlsi=iAcYmh8rOUI-w6ZX
@rohit369106 ай бұрын
Premium content, useful information. Thank you
@MonsterlessonsAcademy6 ай бұрын
Glad it was helpful!
@fuji91 Жыл бұрын
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 Жыл бұрын
It's not dumb. x$ is a new observable based on data$. As you subscribe to x$ it has a take function
@roman-tp6sd2 жыл бұрын
You re the best! Tnxx!
@MonsterlessonsAcademy2 жыл бұрын
Thank you!
@VasyaFF Жыл бұрын
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.
@serhiitachuk2 жыл бұрын
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)?
@MonsterlessonsAcademy2 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.
@chagamajaykumarreddy1897 Жыл бұрын
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
@dhmilmile1Ай бұрын
What should we do if we need ngOnDestory in the child component or how we can override it?
@MonsterlessonsAcademyАй бұрын
override it an call super
@austinZen88002 жыл бұрын
Thanks!
@MonsterlessonsAcademy2 жыл бұрын
Thank you so much for your support! It means a lot to me.
@letok28712 жыл бұрын
Крутотень)
@austinZen88002 жыл бұрын
you'll need a super() call in the component's constructor using / extending this class, otherwise TS will complain?
@MonsterlessonsAcademy2 жыл бұрын
You are totally right. If you need to do anything in contructor you must call super.
@rohit369106 ай бұрын
Should i unsubscribe route change as well
@MonsterlessonsAcademy6 ай бұрын
Angular does it for us but I prefer to just unsub for every subscribe I see
@LailahaillahChannel2 жыл бұрын
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?
@MonsterlessonsAcademy2 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.
@sergiocebrian85 Жыл бұрын
I still remember several projects where the people forgot to close subscriptions...
@MonsterlessonsAcademy Жыл бұрын
Yeap. Happens all the time.
@candyroll789410 ай бұрын
Hi, can you tell us which IDE you are using? :)
@MonsterlessonsAcademy9 ай бұрын
It's Vim
@candyroll78949 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?
@MonsterlessonsAcademy9 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.
@candyroll78949 ай бұрын
@@MonsterlessonsAcademy thank you 😁
@space-waves2 ай бұрын
Wait what? I was sure the component is destroy when not in the view anymore and by consequence all subscribe are unsubscribed…
@MonsterlessonsAcademy2 ай бұрын
Destroying doesn't have anything to do with the in view or not. Also you need to unsubscribe manually.
@manit77 Жыл бұрын
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.
@lindermannla2 жыл бұрын
Monster! 😂
@iukys38897 ай бұрын
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 ? ..)
@MonsterlessonsAcademy7 ай бұрын
It's the example to see that stream was canceled.
@mkrzyzowski Жыл бұрын
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.