ember dev helpers question

dev.js

// app/helpers/dev.js

  Object.defineProperty(window, 'ac', {
    get: function () {
      return window.container.lookup('controller:application');
    }
  });

  // CurrentRoute - NOT WORKING (WHYYYYY?)
  Object.defineProperty(window, 'currentRouteNotWorking', {
    get: function () {
      return window.container.lookup('route:'+window.container.lookup('controller.application').currentRouteName);
    }
  });

  // this works, but jshint complains about 'ac' not being defined
  Object.defineProperty(window, 'currentRoute', {
    get: function () {
      return window.container.lookup('route:'+ac.currentRouteName);
    }
  });

  // currentModel - not working (wtf?)
  Object.defineProperty(window, 'currentModelNotWorking', {
    return currentRoute.get('currentModel');
  });

  // and this one does work
  Object.defineProperty(window, 'currentModel', {
    get: function () {
      return window.container.lookup('route:'+ac.currentRouteName).get('currentModel');
    }
  });