angularjs - call method from directive to controller -

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i want call function in controller directive.

my directive

.directive('multecs', ['$http', function($http){     return{         restrict: 'a',         replace:false,         link: function(scope, elem, attr){             scope.addtoarray();         }     } }]);

method in controller

$scope.addtoarray = function(){     console.log('method called'); }

try passing in function want call directive.

 .directive('multecs', ['$http', function($http){      return{          restrict: 'a',          replace:false,          scope : {              myfunctiontocall : '='          },          link: function(scope, elem, attr){              scope.myfunctiontocall();          }      }  }]);

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