[Jacobi]

JavaScript lacks a real library/module system, namespaces and OOP facilities. I usually spend more time maintaining a JavaScript program than a program written in Java/C# with equivalent size. That being said, my skills in JavaScript are limited.

[factorialboy]

Umm .. On the server, node_modules / NPM driven modular system (AMD) works quite well. RequireJS can be used on the client as well.

[ajuc]

I especially like the fact, that "importing" module in node returns imported module, instead of putting it into namespace like it does in Java. It's much better design.

   var myModule = require('./module');

instead of

   import com.company.module.Sth;

[yaz]

What's wrong with using dojo for a module system, namespaces and OOP?

[Jacobi]

You can do OOP in any langage and there is nothing wrong with dojo. But from my limited experience, maintaining large programs written in JavaScript is a tedious job (each program reinvent it's own OOP semantics)