Any way to know if a variable is an angularjs promise?

Question

I\'m making a directive that takes a function as a scope parameter (scope: { method:\'&theFunction\' }). I need to know if the result returned by that metho

Answer 1

The $q.when() answer seems like the best answer for most use cases, I used instanceof for mine.

    if(buttonData instanceof $q) {
        buttonData.then(function(actions) {
            $scope.buttonActions = actions;
        });
    } else {
        $scope.button = buttonData;
    }

Alternatively, the following IF worked as well, but I ended up going with the above solution.

if(Object.getPrototypeOf(buttonData) === $q.prototype) {