Promise callback not called in Angular JS

Question

If I call connect from doStuff, I get the message that \"the socket is connected\", but the callback is not called. What am I

Answer 1

In AngularJS promise results are propagated asynchronously, inside a $digest cycle. So, your callback function registered with then() will only be called upon entering a $digest cycle.

So, when your socket connects, we are in a digest cycle. then() creates a new promise, but the results of that then() will not be propagated until the next digest cycle, which never comes (because there is no $timeout, or $http, or DOM event to trigger one). As @Ajay just posted, if you add $scope.$apply(), it will cause a digest cycle and you'll see the results.