How to use $http or equivalent in Angular's “Controller as” syntax?

Question

Angular

What are the analogues, or how to include $http in Controller as syntax?
In the old version, I did this:

example.controller('exampleCtrl', [ $scope, $http, function($scope, $http) {
$http.get('/json').success(function(data, status, headers, config) {
     $scope.example = data;
   });
}]);

Answer 1

example.controller('exampleCtrl', ['$http', function($http) {
var vm = this;
$http.get('/json').success(function(data, status, headers, config) {
     vm.example = data;
   });
}]);