shimObjectCreate.js

if(!Object.create) {
  Object.create = function (o, prop) {
    'use strict';
    var keys = Object.keys(prop);
    o['__propertiesObject__'] = o['__propertiesObject__'] || {};
    keys.map(function(key) {
      if (key in o) {
        if (o['__propertiesObject__']['virtual'] !== true) {
          throw new TypeError("Cannot overide property '"+ key +"' of #<Object>'");
        }
      }
      o['__propertiesObject__'][key] = {
        'writable': prop[key]['writable'] || false,
        'configurable': prop[key]['configurable'] || false,
        'enumerable': prop[key]['enumerable'] || false,
        'virtual': prop[key]['writable'] || false
      };
      o[key] = prop[key]['value'];
    });
    return o;
  };
}
 
 
// e.g
(function (global) {
  'use strict';
  var modName = 'foo';
  var globalMod = global[modName] || {};
  var mod = Object.create(globalMod, {
    newOne: {
      writable: false,
      configurable: false,
      enumerable: true,
      value: function () {return 'Hello World!'; }
    }
  });
  global[modName] = mod;
}(this));