Many a times we need a functionality where we need series of dropdowns which are depended on each other to populate. So today we will se how to acheive this task using AngularJs.
The Code is very easy. Firstly we will take 3 dropdowns say country, state, city in view of HTML page. In controller we will have country, state and city information in an array, which will be hooked to $scope as shown below:

In view, we will define the behaviour of dropdowns for populating next dropdown in ng-options.

Complete code is as follows:

Live Demo:

Live Demo