React Performance Optimization: Code Splitting

Splitting code at the file level
Splitting individual functions within a file
Splitting at a more detailed level than just routes, like specific features or components
Granular code splitting refers to splitting code at a more detailed level than just routes, such as specific features, components, or functionalities. While route-based splitting is a common starting point, granular splitting goes further by identifying specific parts of your application that aren't needed immediately or are only used by some users. This approach requires more thought but can lead to better performance by ensuring users download only the code they actually need for their specific interactions with your application.
Splitting the application into exactly three chunks