juniorAngularJS
What is AngularJS ng-app directive?
Updated Apr 28, 2026
Short answer
ng-app bootstraps AngularJS application.
Deep explanation
It initializes AngularJS app and defines root element.
Real-world example
Starting AngularJS app in HTML.
Common mistakes
- Multiple ng-app usage.
Follow-up questions
- What is bootstrap?
- Why single ng-app?