Output of ngResource compilation

Is there a way to retrieve a single result from my array $scope.trailers? I am encountering an issue where accessing the first index using $scope.trailers[0] returns undefined. The API call is made using ngResource.


        function getTrailers(pageNo){
            pageNo = typeof pageNo !== 'undefined' ? pageNo : 1;
            $scope.trailers = apiservice.getTrailers().query({page: pageNo});

            vm.trailer = $scope.trailers[0];
        };

The structure of $scope.trailers: https://i.stack.imgur.com/105uv.jpg

It appears that the issue lies in the asynchronous nature of the call. How can I create a promise for the query within the getTrailers function?

javascriptangularjs

Answer №1

To access the first element in an array, you can use $scope.trailers[0]. However, it's important to check if the array is populated or if it is an associative array.

If the array is associative, you will need to use a string as the key/index instead of a number. For example: $scope.trailers["keyname"]

If you are unsure of the key, you can iterate through the array using the following code:

for (var key in $scope.trailers) {
   console.log($scope.trailers[key]);
}

Answer №2

To fix the issue, I had to utilize the $resource $promise 

           vm.movies = getMovies().$promise.then(function(data){
                vm.movies = data;
                vm.movie = vm.movies[0];
            });

        function getMovies(pageNo){
            pageNo = typeof pageNo !== 'undefined' ? pageNo : 1;
            return apiservice.getMovies().query({page: pageNo});
        }

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