Yes, you can use React hooks in existing projects. React hooks generally provide a more concise and functional way to manage state and side effects in your components. To use React hooks in an existing project, you need to ensure that your project is using React version 16.8 or later. Then, you can start using hooks in your functional components by importing them from the 'react' package and using them within your component's body. Hooks allow you to easily manage state, handle side effects, and reuse logic across components, making them a valuable addition to any React project.
Do check out the below video to learn more about React hooks -