Inheritable static methods in Node.js?

I have the following structure:

开发者_StackOverflow中文版First file:

Base = function() {
};

Base.something = function() {
  return "bla";
};

if (typeof module !== 'undefined' && "exports" in module) {
  module.exports = Base;
}

Second file:

var
  util = require('util'),
  Base = require('./base.js');

FooBar = function() {
};
util.inherits(FooBar, Base);

But FooBar.something is undefined. How can I inherit static methods in node.js?

util.inherits operates on the prototype of a constructor function.

You need to use a simple mixin, commonly referred to as extend. It basically just copies all the properties of one (or many) objects into a "destination" object. (in this case, your constructor function)

If you're using underscore.js, you can use _.extend(FooBar, Base);

I've found an another solution which is better, because I would use only one library to achieve the same functionality.

This library is the oop by Felix Geisendörfer, he also wrote a tutorial at nodeguide.com but it's outdated a bit. But here is a working example for the same problem:

var
  oop = require('oop'),

  Base = require('./base.js');

FooBar = function() {
  oop.mixin(this, Base);
};
oop.extend(FooBar, Base);

To export static functions in Base, add:

module.exports = Base;

inside Base.js.