Another advantage of this, at last for the backend, is that Node itself has a small footprint. Compared to the JVM, Node is tiny. It does some IO stuff and some

Another advantage of this, at last for the backend, is that Node itself has a small footprint. Compared to the JVM, Node is tiny. It does some IO stuff and some eventing stuff and not much else. For the front end, ideally tree shaking is used, and even fancier build systems create code that doesn't pull down dependencies until they are actually needed at runtime.