title: convert time stamp to Date inside angular expression like {{new Date(timestamp)}}
body: <p>Today I found that's it's not working to convert for a date inside angular expression.</p>
  
  <p>So I just making something like </p>
  
  <pre><code>&lt;th&gt;{{new Date(elem.timestamp}}&lt;/th&gt;
  </code></pre>
  
  <p>But it fails with internal angular error.</p>
  
  <p>So why it's not possible to cast to Date inside angular expression?</p>