var app = angular.module("app", []);

​

app.directive("server", function() {

  return {    

    controller: function($element) {                 

      count = $element.find("client").length;

      this.call = function() {

        console.log("Server has been called");

​

        count --;

        if (count === 0) {

          console.log("All of them are initialized");

        }

      };

    }

  };

});

​

app.directive("client", function() {

  return {

    require: "^server",

    link: function($scope, $elem, $attrs, serverCtrl) {

      serverCtrl.call();

    }

  };

});