Question

I have the following structure:

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?

Answer 1

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);