Changing the input programmatically does not trigger an update in the Angular model

I am currently facing a challenge where I have a text input that is connected to a model value in my application. However, I am struggling to programmatically change the input value and ensure that this change reflects in the model.

My understanding is that due to updating the value outside of the angular scope, I need to explicitly invoke $scope.$apply(), but for some reason, it does not seem to be working as expected.

Snippet from HTML file:

<input id="test_input" ng-model="test_value">

Code snippet from Controller:

$scope.test_value = 'abc'; // initial value

Results in Console:

$('#test_input').val('xyz');
$('#test_input').scope().$apply();
$('#test_input').scope().test_value;
-> 'abc';

Answer №1

The ngModel component is designed to listen for the "input" event, therefore it is necessary to manually trigger that event after updating the value:

$('#example_input').val('abc');
$('#example_input').trigger('input'); 
$('#example_input').scope().example_value;

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