'use strict';

var HelloWorld = function () {};

HelloWorld.prototype.hello = function (name) {
  name = name || 'World';
  return 'Hello, ' + name + '!';
};

module.exports = HelloWorld;

'use strict';

var HelloWorld = function () {};

HelloWorld.prototype.hello = function () {
  return 'Hello, World!';
};

module.exports = HelloWorld;

Fix hello-world code (#421)