New Post: Trying to use SPServices Promise with AngularJS Promise

I solved the issue.

  var addUserToGroup = function (selectedUser, selectedAvailableGroups, assignedGroups, availableGroups) {
    var deferred = $q.defer();

    var addPromise = [];
    var selectLength = selectedAvailableGroups.length;

    //Add user to selected groups on server
    deferred.promise.then( function () {alert('testing')})
      .then( function () {
        for (var i = 0; i < selectLength; i++) {
          addPromise[i] = $().SPServices({
            operation: "AddUserToGroup",
            groupName: selectedAvailableGroups[i].name,
            userLoginName: selectedUser.domain
          });      
        };
      })
      .then(function (){
          for (var i = 0; i < selectLength; i++) {
            assignedGroups.push(selectedAvailableGroups[i]);
            //availableGroups.pop(selectedAvailableGroups[i]);
          };
          console.log(selectedUser.name + " added to: " + JSON.stringify(selectedAvailableGroups));             
      })
    //when all users added, update dom
    deferred.resolve();
  }

If I was going to use promises from AngularJs, it didn't seem to make sense to me to also have a promise handler like:

$.when.apply($,addPromise).done();

So I got rid of that and it worked perfectly.