Prompt Title: Unsubscribing in TypeScript

Yes, you can keep track of all the Subscription objects in your component and then unsubscribe from them in the ngOnDestroy method. Here's an example:

kotlinCopy code
import { Component, OnDestroy } from '@angular/core';
import { Subscription } from 'rxjs';

@Component({
  selector: 'app-my-component',
  templateUrl: './my-component.component.html',
  styleUrls: ['./my-component.component.css']
})
export class MyComponent implements OnDestroy {

  private subscriptions: Subscription[] = [];

  constructor(private myService: MyService) {
    this.subscriptions.push(this.myService.observable1.subscribe());
    this.subscriptions.push(this.myService.observable2.subscribe());
    this.subscriptions.push(this.myService.observable3.subscribe());
  }

  ngOnDestroy() {
    this.subscriptions.forEach(sub => sub.unsubscribe());
  }
}

In this example, the MyComponent class keeps track of all the Subscription objects by pushing them into an array called subscriptions. In the ngOnDestroy method, we loop through all the Subscription objects in the array and unsubscribe from them using the unsubscribe() method.