Code splitting is a crucial optimization technique in modern web applications where the application's JavaScript bundle is divided into smaller, manageable chunks. Instead of delivering a single, large file containing all the application's code, it allows browsers to download only the necessary code for the initial view or current route. This process significantly improves `initial page load performance` and `Time To Interactive (TTI)`, as users don't have to wait for the entire application to download before interacting. It's commonly implemented using `dynamic import()` syntax or `route-based splitting` with bundlers like Webpack, Rollup, or Parcel. By loading parts of the application `on demand` or `lazily`, code splitting reduces the amount of data transferred and parsed, leading to a much smoother user experience. More details: https://termobud.com.ua/