Using Next.js with Suspense to create a loading component

Next.js 13.4 introduced production-ready support for React Suspense, a feature that allows for asynchronous loading of components, improving both developer experience and app performance. This tutorial demonstrates how to use Suspense in a Next.js project to create effective loading screens, which are crucial for user engagement by reducing frustration during data fetching. Suspense, which was added to React in version 16.6, delays the display of a component until its children have finished loading, thus enhancing the user experience and performance of web applications. The article guides readers through setting up a Next.js project, including creating loading components and handling asynchronous data fetching using Suspense. It emphasizes the importance of integrating Suspense with error boundaries to manage errors effectively and discusses optimizing loading components using strategies like lazy loading and efficient data fetching with libraries like SWR. Additionally, the text highlights the benefits of concurrent rendering introduced in React 18, which allows for better management of loading states by selectively suspending parts of the component tree instead of blocking the entire UI.