/TypeScript/Angular/RxJs When should I unsubscribe from `Subscription`

Angular/RxJs When should I unsubscribe from `Subscription`

// You don't need to have bunch of subscriptions and unsubscribe manually.
// Use Subject and takeUntil combo to handle subscriptions like a boss:


import { Subject } from "rxjs"
import { takeUntil } from "rxjs/operators"

export class ViewRouteComponent implements OnInit, OnDestroy {
  componentDestroyed$: Subject<boolean> = new Subject()

  constructor(private titleService: TitleService) {}

  ngOnInit() {
    this.titleService.emitter1$
      .pipe(takeUntil(this.componentDestroyed$))
      .subscribe((data: any) => { /* ... do something 1 */ })

    this.titleService.emitter2$
      .pipe(takeUntil(this.componentDestroyed$))
      .subscribe((data: any) => { /* ... do something 2 */ })

    //...

    this.titleService.emitterN$
      .pipe(takeUntil(this.componentDestroyed$))
      .subscribe((data: any) => { /* ... do something N */ })
  }

  ngOnDestroy() {
    this.componentDestroyed$.next(true)
    this.componentDestroyed$.complete()
  }
}

Source: stackoverflow.com

Similar codes

0 vote143 views2 answers
Enter into postgresql database,create user and grant Access
TypeScript
0 vote107 views1 answer
Mongodb nest.js
TypeScript
21 votes111 views2 answers
Npm typescript package
TypeScript
21 votes128 views4 answers
Can't bind to 'ngmodeloptions' since it isn't a known property of 'input'
TypeScript
0 vote118 views1 answer
Typescript import particular class from file
TypeScript
0 vote114 views1 answer
How to check if folder already exists in google drive python
TypeScript
1 vote130 views1 answer
Gets ents within range gmod lua
TypeScript
-1 vote119 views1 answer
Importhtml google sheets multiple tables
TypeScript
0 vote129 views1 answer
Clone object in typescript
TypeScript
0 vote135 views1 answer
Jupyter notebook create table
TypeScript