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

app.controller('MainCtrl', function($scope) {
  $scope.name = 'World';
  $scope.isObjValid=function(obj) {
      return !(obj === undefined || obj === null || Object.keys(obj).length === 0)
  };
});
<!DOCTYPE html>
<html ng-app="demoModule">

<head>
  <meta charset="utf-8" />
  <title>AngularJS Plunker</title>
  <script>
    document.write('<base href="' + document.location + '" />');
  </script>
  <link rel="stylesheet" href="style.css" />
  <script data-require="angular.js@1.3.x" src="https://code.angularjs.org/1.3.20/angular.js" data-semver="1.3.20"></script>
  <script src="app.js"></script>
</head>

<body ng-controller="MainCtrl">
  <p>Hello {{name}}!</p>


  <div ng-if="isObjValid(data)">
    Valid data
  </div>
  <div ng-if="!isObjValid(data)">
    In Valid data
  </div>
  <div ng-if="isObjValid(name)">
    Valid name object
  </div>
</body>

</html>
/* Put your css in here */