Overriding Service Implementation

We learned that a component could share its dependencies with its child components. Consider the FavoritesComponent, where we used the slice pipe to display a list of favorite products in its template. What if it needs to get data through a trimmed version of ProductsService and not directly from the service instance of ProductListComponent? We could create a new FavoritesService that would extend the ProductsService class and filter out data using the native slice method of the array instead of the pipe. The favorites.service.ts file would look like the following: