Sorting $q.all() responses not working

问题

My $q.all() is working fine. The below code is in my primary service and when done everything is returned to the controller correctly. However I am trying to pre-sort the final array returned to the controller its not working. The sort function itself works - its the identical function in my controller that I use to manually sort the results on my template page. Its just the initial results don't come back sorted.

I know its an async issue, but can't figure out where the sort needs to go before the results are returned.

// SERVICE
var groups = [] ; 
$q.all([promise1(),promise2(),promise3(),promise4(),promise5(),promise6()]).then(function(response){  
    var z=0 ;
    for (var y=0;y<response.length;y++) {  
          // process each promise as a complete 
          //     value: [0][{a:1,b:2,c:3},{a:4,b:5,c:6}],
          //            [1]:[{a:7,b:8,c:9},{a:10,b:11,c:12}]
       for (var x=0;x<response[y].length;x++) {  
          // process the components of each promise 
          // value [{a:1,b:2,c:3},{a:4,b:5,c:6}]
          response[y][x].ID = z++ ;  // reassign primary 'list' ID
          groups.push(response[y][x]) ;  // push preformatted component
                                         // to 'groups' to be passed
                                         // back to controller
       }
    }
    var sortType = getDB("sortOption") ;
    sortGroups(sortType) ;  // global 'groups' is already 
                            //   in 'sortGroups()'
});

return {
  all: function() {
    return [groups,sortType] ;
  }

// CONTROLLER
$scope.groups = ServiceGroups.all() ;

In the controller, 'groups' is always returned, just not sorted.

来源：https://stackoverflow.com/questions/46494215/sorting-q-all-responses-not-working