AngularJS -
1. be able to write a simple angular app from scratch with controller and scope.
2. know the version of angular you have used.Angular 2 have came out but alot of companies are still using angular 1.3, 1.4. Angular 1.x is based on Javascript and Angular 2 is based on typescript.
3. how many ways can you bind data from controller to view? using {{}}, ng-model, ng-bind
4. diff between using ng-bind and {{}}
5. Difference between service and factory
6. what built-in services have you used? http service is one example
7. can you do dependency injection in Angular?
8. be able to write a custom directives.
9. how is mvc used in Angular?
10. how to make asynchronous call in angular?
11. what is apply() and digest() functions ?
12. what is watch() function?
13. how to improve performance in ANGULAR?
14. diff between angular.copy() and assignment (=)

Bootstrap:
1. why to use bootstrap and how is it better?
2. what is grid system in bootstrap?
3. be able to layout div with bootstrap classes. like using span in bootstrap 2 and col-md-xx in 3




There are the question I have asked candidates before.