Angular: $q's short methods which might help you delete some code

$q_all.js

//Creating promise which resolves after all promises are resolved
var deferrable = $q.defer();
var promises = [];
promises.push(fooPromise);
promises.push(barPromise);
$q.all(promises).then(function(){
  deferrable.resolve();
})
return deferrable.promise;

// Can be changed to
return $q.all([fooPromise, barPromise]);

$q_reject.js

//Creating promise which resolves as rejected
var deferrable = $q.defer();
deferrable.reject({errors: ["Oops!", "Oh!"]});
return deferrable.promise;

// Can be changed to
return $q.reject({data: [1, 2, 3]});

$q_when.js

//Creating promise which resolves some data
var deferrable = $q.defer();
deferrable.resolve({data: [1, 2, 3]});
return deferrable.promise;

// Can be changed to
return $q.when({data: [1, 2, 3]});