javascript - getting the return data of a async function inside a function

Question

I am having a problem because chrome api functions are async and I cant get its return value. Consider the following code. I am using angularjs

Answer 1

Another way is to use a promise. In this case it might not matter but if you have a a lot of nested callbacks then a promise is better.

$scope.storageGet = function(param) {
    var deferred = $q.defer();

    chrome.storage.local.get(param.storageName, function(data) {
        deferred.resolve(data);
    });

    return deferred.promise;
};

And then you call it like this.

$scope.storageGet(param).then(function (data) {

});