Using $emit in angular 1.5 component

Question

I am using angular 1.5 component and need to call function in parent controller from when $emit in child component. How we can do this?

Example:

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Answer 1

I prefer working with a separate event service that exposes subscribe and notify functions. But if you prefer to emit from the child component then it would look like this:

Child Component

    (function (angular) {
    'use strict';

      function childController($scope) {
       $scope.$emit("someEvent", args); 
      }

      angular.module('childModuleName', [
      ]).component('childComponent', {
        templateUrl: 'templateUrl',
        controller: ['$scope', childController]
      });

    })(angular);

Parent Component

    (function (angular) {
    'use strict';


      function controllerName($scope) {
         var _this = this;

         function toBeCalledOnEmit(event, args) {
            //some code
         }
         $scope.on('someEvent', toBeCalledOnEmit);

         var vm = {
            toBeCalledOnEmit: toBeCalledOnEmit
         }
         angular.extend(_this, vm);
      }

      angular.module('moduleName', [
      ]).component('parentComponent', {
          templateUrl: 'templateUrl',
          controller: ['$scope', controllerName]
      });

    })(angular);