Implementing Namespaces in CoffeeScript and JavaScript

namespace.coffee

# Define the global namespace as 'root'.

root = module?.parent?.exports ? window

###
  @fn namespace
  Allows you to implement a namespace of objects to the global namespace.
###
root.namespace = ->
  separator = "."
  base = root
  for own key, value of arguments[0]
    components = key.split separator

    if components.length isnt 1
      for component in components
        if !base[component]
          base[component] = {}

        base = base[component]
    else
      base[key] = {}
      base = base[key]

    for own propertyName, propertyValue of value
      base[propertyName] = propertyValue
  base

namespace.js

var root, _ref, _ref1,
  __hasProp = {}.hasOwnProperty;

root = (_ref = typeof module !== "undefined" && module !== null ? (_ref1 = module.parent) != null ? _ref1.exports : void 0 : void 0) != null ? _ref : window;

/*
  @fn namespace
  Allows you to implement a namespace of objects to the global namespace.
*/


root.namespace = function() {
  var base, component, components, key, propertyName, propertyValue, separator, value, _i, _len, _ref2;
  separator = ".";
  base = root;
  _ref2 = arguments[0];
  for (key in _ref2) {
    if (!__hasProp.call(_ref2, key)) continue;
    value = _ref2[key];
    components = key.split(separator);
    if (components.length !== 1) {
      for (_i = 0, _len = components.length; _i < _len; _i++) {
        component = components[_i];
        if (!base[component]) {
          base[component] = {};
        }
        base = base[component];
      }
    } else {
      base[key] = {};
      base = base[key];
    }
    for (propertyName in value) {
      if (!__hasProp.call(value, propertyName)) continue;
      propertyValue = value[propertyName];
      base[propertyName] = propertyValue;
    }
  }
  return base;
};