AngularJS Mixins - By passing a scope to a mixin you can keep your controllers simple and reuse mixin code through out your app.

app.ctrl.coffee

window.AppCtrl = ($scope, $route, $timeout) ->
  # mixins
  mixin_generic($scope) # setup $scope.generic()
  # now we can...
  $scope.generic() 
  

mixins.coffee

# a safer version of $scope.$apply()... It will tame exceptions if $apply() or $digest() is already called. 
window.mixin_generic = ($scope) ->
  $scope.generic = () -> 
    console.log 'inside mixin'