javascript - Undefined variable passing data using service -

i have declared app , have 1 controller (for demonstration purposes):

    var module = angular.module("app", [])       module.controller("modalctrl", ["$scope", function ($scope, dataservice) {       $scope.printentity = function () {          console.log(dataservice.getentityarray());     }  }]); 

and service:

module.factory("dataservice", function () {  var entityarrayservice = [1,2];  return {      getentityarray: function () {         return entityarrayservice;     }  };  }); 

when call $scope.printentity view, i'm told dataservice.getentityarray() undefined.

i've loaded service dependency , declared entityarrayservice array outside of return statement. i've looked high , low answer no avail. goal share piece of data between 2 controllers, @ minute can't use 1 controller retrieve data.

the service isn't loaded dependency. change line:

module.controller("modalctrl", ["$scope", function ($scope, dataservice) { 

to this:

module.controller("modalctrl", ["$scope", "dataservice", function ($scope, dataservice) {