当一个angular组件订阅了一次路由更改事件时，它会被销毁吗？

import { Component, OnDestroy } from '@angular/core';
import { Router, NavigationEnd } from '@angular/router';
import { Subscription } from 'rxjs';

@Component({
  selector: 'app-my-component',
  template: '...',
})
export class MyComponent implements OnDestroy {
  private routerSubscription: Subscription;

  constructor(private router: Router) {
    this.routerSubscription = this.router.events.subscribe((event) => {
      if (event instanceof NavigationEnd) {
        // 处理路由更改事件
      }
    });
  }

  ngOnDestroy(): void {
    if (this.routerSubscription) {
      this.routerSubscription.unsubscribe();
    }
  }
}