$q.now() - an immediately resolved promise oneliner for Angular.js

q_now.js

module.config(['$provide', function($provide) {
 
  // Add a method to $q that returns a promise resolved to
  // the given value. Use as: $q.now(42)
  $provide.decorator('$q', ['$delegate', function($delegate) {
    $delegate.now = function(value) {
      var d = $delegate.defer();
      d.resolve(value);
      return d.promise;
    };
    return $delegate;
  }]);
  
}]);

Or, as it turns out, you could just use when