Using $watch on complex objects causing slow UI
In AngularJS, $watch is used to observe changes in model data. However, watching complex objects (like deep-nested objects or large arrays) can significantly slow down the UI due to excessive….
Tag: AngularJS performance
Excessive digest cycles causing UI lag
In AngularJS, the digest cycle is responsible for updating the UI when model data changes. However, if too many digest cycles are triggered, it can cause severe UI lag, slow….
ng-repeat performance issues with large datasets
ng-repeat is one of the most powerful directives in AngularJS, but when working with large datasets (1000+ items), it can cause serious performance issues. Each item in an ng-repeat list….
Too many watchers slowing down the app
In AngularJS, each ng-model, ng-repeat, ng-if, and ng-show creates a watcher that Angular evaluates during the digest cycle. When an application has too many watchers, performance degrades, making the app….
Custom directive does not update DOM
If your custom directive is not updating the DOM, it’s likely due to scope binding issues, incorrect directive configurations, or digest cycle problems. Below, I’ll explain step by step how….
Conflicting directive priority issue
If you’re experiencing conflicting directive priority issues, it means multiple directives are competing to control the same DOM element, and AngularJS doesn’t know which one to apply first. 1️⃣ What….
[$rootScope:infdig] Infinite digest cycle detected
The error [$rootScope:infdig] Infinite digest cycle detected in AngularJS occurs when the AngularJS $digest cycle goes into an infinite loop. This happens when Angular’s change detection mechanism continuously re-evaluates the….
Using track by in ng-repeat for better performance
Using track by in ng-repeat is an important optimization technique in AngularJS to improve the performance of rendering lists, particularly when dealing with large datasets. By default, AngularJS uses object….
How to restrict directives (E, A, C, M)
In AngularJS, directives are a powerful feature that allow developers to create reusable components. When defining directives, AngularJS offers different directive restrictions that determine how the directive should be used….
Avoiding excessive $watch usage for performance
AngularJS’s $watch() is powerful for tracking changes in scope variables, but excessive use can significantly impact performance. Since AngularJS runs a digest cycle to check for changes, having too many….