A lifecycle hook that is called when a directive, pipe, or service is destroyed. Use for any custom cleanup that needs to occur when the instance is destroyed.

interface OnDestroy {
  ngOnDestroy(): void
}

See also

• Lifecycle hooks guide

Methods

Usage notes

The following snippet shows how a component can implement this interface to define its own custom clean-up method.

@Component({selector: 'my-cmp', template: `...`})
class MyComponent implements OnDestroy {
  ngOnDestroy() {
    // ...
  }
}