message: docs(core): describe your change...
  According to
  "Put cleanup logic in ngOnDestroy(), the logic that must run before Angular destroys the directive."
  PR Close
diff: @@ -116,7 +116,7 @@ export interface DoCheck {
  export interface OnDestroy {
  /**
  * A callback method that performs custom clean-up, invoked immediately
  - * after a directive, pipe, or service instance is destroyed.
  + * before a directive, pipe, or service instance is destroyed.
  */
  ngOnDestroy(): void;
  }
  