How to prevent excessive digest cycles in AngularJS when dynamically updating a large list?
I'm working on a project and hit a roadblock. I'm maintaining legacy code that I'm working with AngularJS v1.7.9 and have a scenario where I'm dynamically updating a large list of items based on user interactions. I've noticed that my application performance degrades significantly when the list gets larger because AngularJS seems to trigger multiple digest cycles. For instance, when I add or remove an item from the list, it feels like the UI is lagging behind and occasionally throws a `Maximum call stack size exceeded` behavior. Here's a simplified version of my code: ```javascript angular.module('myApp', []) .controller('MyController', function($scope) { $scope.items = []; $scope.addItem = function(item) { $scope.items.push(item); }; $scope.removeItem = function(index) { $scope.items.splice(index, 1); }; // Simulating a large list for (let i = 0; i < 10000; i++) { $scope.items.push('Item ' + i); } }); ``` I've tried wrapping my updates in `$timeout` to manage the digest cycle better, but it doesn't seem to help much. Here's an example of how I've implemented it: ```javascript $scope.addItem = function(item) { $timeout(function() { $scope.items.push(item); }); }; ``` However, even with `$timeout`, I still face performance optimization when the list size increases. What strategies can I employ to handle this situation more efficiently? Could using `track by` in my `ng-repeat` help, or should I look into implementing pagination or virtualization? I'd appreciate any insights or best practices on managing large lists in AngularJS without running into performance bottlenecks. I recently upgraded to Javascript 3.9. Any help would be greatly appreciated!