Two functions on Object.prototype

sugar.js

Object.prototype.values = function() {
  return Object.getOwnPropertyNames(this).reduce(function(values, property) {
    values.push(this[property]);
    return values;
  }.bind(this), []);
};

Object.prototype.forEach = function(callback) {
  Object.keys(this).forEach(function(key) {
    callback.call([], key, this[key]);
  }.bind(this));
};

Since Object has Object.keys(object), maybe it should be Object.values(object) instead?