Object.mixin impl from https://mail.mozilla.org/pipermail/es-discuss/2012-December/027039.html

object.mixin.js

Object.mixin = function( receiver, supplier ) {
  return Object.getOwnPropertyNames( supplier ).reduce(function( receiver, property ) {
    return Object.defineProperty(
      receiver, property, Object.getOwnPropertyDescriptor( supplier, property )
    );
  }, receiver );
};



var a = {}, name = "Rick";

var b = Object.mixin(a, {
  get name() {
    return name;
  }
});

console.log( a.name ); // "Rick"
console.log( b.name ); // "Rick"
console.log( a === b ); // true