Антон Цепковский

// js/controller/MainController'.js
app.controller('MainController', ['$scope', 'someService', function($scope, someService) { 
$scope.title = someService.title = 0;

// обработчик
$scope.clickFn = someService.nameFuncion;

}]);

app.service('someService', [function() {

  var title;
  function  nameFuncion(){
    title = 1;
  }

  return {
    title: title,
    nameFunction: nameFunction
  }
}]);