Is there a specific event in Angular.js that triggers when the $scope digest cycle is completed or when the view is refreshed?

Currently, I am making an AJAX request to retrieve data that is needed in the view to generate a list. My goal is to determine when the $scope has been updated and when the view has finished rendering after receiving a successful response. This will allow me to dynamically set initial values and event handlers for the list.

The code I am using at the moment is not achieving the desired outcome:

responsePromise.success(function (data, status, headers, config) {
    var slideInfos = data;
    $scope.slideInfos = slideInfos;
    setInitialSliderValues();
});

When I call setInitialSliderValues(), the view is still not refreshed.

Attempting the following code leads to an error stating "$digest already in progress":

responsePromise.success(function (data, status, headers, config) {
    var slideInfos = data;
    $scope.$apply(function () {
        $scope.slideInfos = slideInfos ;
        setInitialSliderValues();
    }
});

I am seeking advice on how to ensure that changes to the data have been applied to the page without resorting to using a timer to check for expected changes.

Answer №1

Implement the use of $timeout() to ensure it runs in the following digest cycle. Remember to include the $timeout dependency in the controller.

$timeout(function () {
    $scope.slideInfos = slideInfos ;
    setInitialSliderValues();
});

Answer №2

If you're looking to improve performance, consider using $evalAsync:

responsePromise.success(function (data, status, headers, config) {
    $scope.slideInfos = data;
    $scope.$evalAsync(function () {        
        setInitialSliderValues();
    }
});

$evalAsync differs from $timeout as it attempts to execute within the current digest cycle whenever possible, falling back to the next cycle if necessary.

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