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

​

app.directive('testD',function() {

  'use strict';

  return {

        restrict: 'E',

        scope: {

            myTest: '=of',

        },

        template: '<input ng-model=h>',

        replace: true,

        link: function (scope) {

           scope.h = "dd";

           console.log(scope.h);

        }

    };

});