javascript - Why use $http in Angular instead of jquery's ajax? -

i don't understand when use angular on jquery ajax requests.

for example, why should use:

function itemlistctrl ($scope, $http) {     $http.get(‘example.com/items').success(function (data) {     $scope.items = data;   } } 

instead of

  function itemlistctrl ($scope) {         $.ajax({type: "get", url: 'example.com/items',         success: function (result) {                                                  $scope.items = data;                     }     });    } 

??

my understanding there couple reasons first preferred:

• $http testable. it's possible stub out backend uses , test $http requests without actually sending requests.
• $http common "stuff" you, such setting content type 'application/json' on post requests.
• $http returns "promise" similar other areas in angular, means .success, .done consistent angular. jquery allows similar, syntax different.
• $http success , error callbacks execute inside of angular. if use jquery, might necessary call $apply, can tricky in cases.
• $http works without jquery. if don't have other reason include jquery, possibly save few k using $http.
• $http shorter. subjective, personally, reads better me.

aside those, though, should able either.