title: Choose multiple options from select box using ng-options in angularjs
body: <p>Assume my html looks like:</p>
  
  <pre><code>&lt;div&gt;
  &lt;select  class="topcoat-select"  ng-model="myselect" ng-options="o.cost as (o.attr_value+'-$'+' '+o.cost) group by o.attribute_text for o in options" ng-change="itemchange()" &gt;  
      &lt;option  value=""&gt;--Select Options--&lt;/option&gt;
  &lt;/select&gt;
  &lt;/div&gt;
  </code></pre>
  
  <p>Now I am able to select only single option and I get the value of that single option in the ng-model. But I want to select multiple options and I want to get the value of selected options in ng-model. </p>
  
  <p>Is it possible to select multiple options from a single select box in angularjs?</p>