Call function from another Controller Angular Js

Question

I am new to using angular js and i have declare many controller and now i want to user function of one controller into another controller. here is my sample code.

app.controller('Controller1',function($scope,$http,$compile){
    $scope.test1=function($scope)
    {
          alert("test1");
    }
});

app.controller('Controller2',function($scope,$http,$compile){
    $scope.test2=function($scope)
    {
          alert("test1");
    }
});
app.controller('Controller3',function($scope,$http,$compile){
  ///
});

Now i want to call test2 function inside controller3. Can anybody help.. Thanks in Avance... :)

Answer 1

You can't call a method from a controller within a controller. You will need to extract the method out, create a service and call it. This will also decouple the code from each other and make it more testable

(function() {
    angular.module('app', [])
        .service('svc', function() {
            var svc = {};

            svc.method = function() {
                alert(1);
            }

            return svc;
        })
        .controller('ctrl', [
            '$scope', 'svc', function($scope, svc) {
                svc.method();
            }
        ]);
})();

Example: http://plnkr.co/edit/FQnthYpxgxAiIJYa69hu?p=preview