title: clear selected option by button event in angular js
body: <p>I have select box and have default value is text "please select one", I need solution while if any other option is selected (eq. abc) and user need to clear what he has selected(important is getting default value selected again) with button("Clear and go Next") event.</p>
  
  <p><a href="http://plnkr.co/edit/HIOOHBHaibHmDtiLdGfh?p=preview" rel="nofollow">http://plnkr.co/edit/HIOOHBHaibHmDtiLdGfh?p=preview</a></p>
  
  <pre><code>&lt;select ng-model="item" ng-options="item.name for item in options"
      ng-change="doSomething()"&gt;
      &lt;option value=""&gt;Please select one&lt;/option&gt;
  &lt;/select&gt;
  </code></pre>