What is the correct method for retrieving values from a JSON array?

To extract information from a JSON file, I have created a function as shown below:

function getarray(){
  $http.get('http://localhost/prebuilt/countries.json')
  .success(function(data) {
    $scope.countries = data;
  });
  return data;
} 

However, the issue I am facing is that the function does not return any values. I require these return values to be utilized in another function within the same control block.

The beginning of my controller looks like this:

angular.module('theme.charts-flot', [])
       .controller('FlotChartsController', 
                   ['$scope', 
                    '$timeout', 
                    '$http',
                    '$parse',
                    function ($scope, $timeout, $http, $parse) {

Moreover, I am using a template. This controller is responsible for updating the chart in real time.

Answer №1

One of the advantages of AngularJS is its utilization of data binding, eliminating the need to explicitly return data. By simply assigning the data to $scope.countries, the value will automatically be updated. However, in cases where custom data parsing is required from an HTTP response, you can use JSON.parse(data) as shown below:

$scope.countries = JSON.parse(data);

Should you wish to explicitly return a value, $scope.countries can always be returned. It's important to note that the data is not within the local scope of the success function, resulting in it being undefined at the return statement.

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