title: AngularJS Drop down values change Dynamically
body: <p>I have created two drop downs using AngularJS and appended data in them through the controllers. I want to change the second drop down values when a change occurs in first drop down.</p>
  
  <p>I create the <a href="http://addr.pk/a431b" rel="nofollow">example</a>, but when I change value of the first drop down; the second drop down values do not change.</p>