#21 React js Challenge: Day 21 | useCallback react hook challenge

Welcome to day 21 of the React js Challenge! Today, we will be taking on a
challenge that involves using the useCallback react hook. This hook is
invaluable when it comes to optimizing performance in our React
applications.

The useCallback hook is used to memoize functions so that they are not
re-created every time a component re-renders. This can be especially
useful when passing functions down to child components as props, as it can
prevent unnecessary re-renders of those components.

Your challenge for today is to refactor a React component using the
useCallback hook to optimize its performance. You will need to identify
which functions in the component can be memoized using useCallback, and
then implement the hook to do so.

As with all challenges in this series, you are encouraged to share your
solution with the community and engage in discussions about different
approaches and best practices. This is a great opportunity to learn from
others and improve your own skills as a React developer.

Remember to think about how the useCallback hook fits into the larger
picture of optimizing performance in React applications. Consider other
tools and techniques that can be used in conjunction with useCallback to
further enhance the performance of your application.

We hope you enjoy today’s challenge and find it to be a valuable
learning experience. Happy coding, and we look forward to seeing your
solutions!