Isomorphic code. Am I doing everything right?

Question

JavaScript

(function (context) {
  var MyClass = function MyClass () {
    // Бла-бла-бла
  };

  MyClass.prototype.myMethod = function myMethod () {
    // Бла-бла-бла
  };

  context.MyClass = MyClass;
})(window || (module.exports = {}));

Answer 1

no window and global objects and everything will be fine. Use modules (es2015, commonjs or amd at worst).