What Is Bundle Splitting in Web Development?

Bundle splitting refers to the process of breaking a large JavaScript bundle into smaller chunks that can be loaded on demand. This technique improves initial page load speed and overall performance. In Next.js, dynamic imports using `next/dynamic` allow developers to split bundles automatically. For example, heavy components like charts or maps can be loaded only when needed. This way, users download only the code required for the current page, resulting in a better user experience.