Angular Universal vs Sapling

It executes on the server, generating static application pages that later get bootstrapped on the client. This means that the application generally renders more quickly, giving users a chance to view the application layout before it becomes fully interactive.

It is a convenient way to traverse your React app in VS Code. As your codebase grows, your native file structure becomes less and less intuitive. It is an interactive hierarchical dependency tree that lives directly within your VS Code IDE, as accessible as the native file system. You can build your tree by selecting any component file as the root and get information about the available props at any level. It also provides visual indication of Javascript syntax or import errors in your files, and shows you which components are connected to your Redux store.