How to detect a click outside a React component

The tutorial provides a detailed guide on implementing outside click detection in React components, both functional and class-based, to enhance user interaction with UI elements like tooltips and dropdowns. It explains how to use the `useRef` and `useEffect` hooks in functional components and `createRef` in class-based components to manage DOM references and event listeners, ensuring that an action is triggered when the user clicks outside a specified component. The text also discusses using the popular npm library `react-outside-click-handler` as an alternative approach, which simplifies the process and slightly increases the production bundle size by about 20 kB. The author emphasizes the trade-off between implementing the feature manually to keep the codebase lightweight and maintainable versus using a third-party library for rapid development.