title: Set default value in select when the ng-model is null
body: <p>I'm new to angular and i'm trying to set a default state to select when my ng-model is null. Basically I want to set it to 'None' if the model is empty. I tried the below code but it's not working.</p>
  
  <pre><code>&lt;select ng-init="item.carType | item.carType='none'" ng-model="item.carType"&gt;
      &lt;option value="none"&gt;None&lt;/option&gt;
      &lt;option value="manual"&gt;Manual&lt;/option&gt;
      &lt;option value="auto"&gt;Auto&lt;/option&gt;                      
  &lt;/select&gt;
  </code></pre>