AngularJS 1.8: Issue with $watch on Complex Object Properties Not Triggering for Nested Changes
I've looked through the documentation and I'm still confused about I'm working on a project and hit a roadblock. I'm stuck on something that should probably be simple. This might be a silly question, but I'm facing an issue with `$watch` in AngularJS 1.8 where changes to nested properties of a complex object are not triggering the digest cycle as expected. I have a service that returns a deeply nested object, and I want to watch for changes on one of its properties, but only the first-level properties seem to trigger the `$watch`. Here’s a simplified version of my code: ```javascript angular.module('myApp', []) .controller('MyController', ['$scope', 'MyService', function($scope, MyService) { $scope.data = MyService.getData(); $scope.$watch('data.someNestedObject.someProperty', function(newVal, oldVal) { console.log('Nested property changed from', oldVal, 'to', newVal); }); }]) .service('MyService', function() { this.getData = function() { return { someNestedObject: { someProperty: 'initial value' } }; }; }); ``` I expected the console log to display changes when `someProperty` is updated. However, when I modify it directly like this: ```javascript $scope.data.someNestedObject.someProperty = 'new value'; ``` There’s no output in the console. I've also tried using a deep watch with `$watch` like this: ```javascript $scope.$watch('data.someNestedObject', function(newVal, oldVal) { console.log('Nested object changed'); }, true); ``` This seems to trigger the watcher when I make changes to the entire `someNestedObject`, but not for changes to `someProperty` itself. I've verified that the model is being updated correctly by adding a button to change the property manually and logging the value before and after. Still, it doesn’t seem to notify the watcher. Is there a way to effectively watch nested object properties in this scenario, or is there something I am missing? Any insights would be greatly appreciated! I've been using Javascript for about a year now. Thanks for any help you can provide! My team is using Javascript for this desktop app. Any ideas what could be causing this? Has anyone dealt with something similar?