[bnb]

I don't think it's right for you to call what he said crap without backing it up with any evidence. Node.js is essentially the modern poster child of modularity. JavaScript doesn't have inherent modularity--but the devs of Node have made some choices that make it possible to have an extensive module ecosystem for Node. npm is probably one of the best package managers for development right now, as it comes with one of the most popular platforms and is inherently flexible.

[rubiquity]

Package managers have nothing to do with modularity. You're confusing modules, a thing, with modularity, a property. How you write and design your systems is how you get (and don't get) modularity, not by having a service you upload and download packaged code to.

Again, modularity has nothing to do with the quality of your package manager.