Responsibilities of Controllers in Angularjs | Angularjs Interview Question | Angularjs Tutorial | Angularjs Programmer Guide

Angularjs works on model-view-controller pattern. Angularjs Controllers have three responsibilities in your app:

1. Set up the initial state in your application’s model
2. Expose model and functions to the view (UI template) through $scope
3. Watch other parts of the model for changes and take action