app.controller('tableDataController', function ($scope, $filter, ngTableParams,$http){
$scope.dataList = [];
$http.get("fetchJsonData").success(function (res) {
$scope.dataList = res; //ajax request to retrieve and store data in $scope.userList
});
console.log($scope.dataList); // The value is not updated here since it needs to be passed to another function
});
When using the success function as a callback after a call is complete, you will need to invoke other functions or pass values inside the callback in order to see the desired result.
For example:
$scope.users = [];
$http.get("getjsondata").success(function (response) {
$scope.users = response;
console.log($scope.users);
});
Immediately following the Http Request, the console.log statement is executed.
To interact with or log the response data, make sure to do so within the success callback function.
$http.get("getjsondata").success(function (response) {
$scope.users = response;
console.log($scope.users);
});
Furthermore, it is recommended to avoid using $scope in your controllers. Please refer to John Papa's Angular.js style guide for best practices.
It appears that your log message is placed outside of the success promise, potentially causing it to be executed prior to your assignment. Consider the following solution:
$scope.users = [];
$http.get("retrievejsondata").success(function (response) {
$scope.users = response;
console.log($scope.users);
});
Remember, promises operate asynchronously, meaning they may be executed after statements following the console.log.
The main issue here is that in the code snippet, console.log($scope.users); will be triggered before the completion of the $http.get().success() function call;
$http.get() in AngularJS returns a promise which needs to be resolved.
To troubleshoot this problem, you can follow this approach:
$http.get("getjsondata").success(function (response) {
console.log('This message appears after resolving the promise');
$scope.users = response; // This line fetches data from an Ajax request and assigns it to $scope.data
});
console.log('This message is executed first');
console.log($scope.users);
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