Prefetching Data for Future Use

Explain how to prefetch data that will be needed in the future using React Query's prefetchQuery method, to improve user experience by loading data before it's requested.
import { useQueryClient } from 'react-query';

function prefetchTodos() {
  const queryClient = useQueryClient();
  // Prefetch the data
  queryClient.prefetchQuery('todos', fetchTodos);
This piece of code demonstrates how to use React Query's prefetchQuery method to prefetch data that will be needed in the future. Here, 'todos' is the unique key associated with the query, and fetchTodos is the function that fetches the data. This function can be called before the actual request for the 'todos' data happens, ensuring the data is already loaded and cached by the time it's requested by the user.