title: How To Concat values in view to href
body: <p>I can set a variable in my controller and assign it to an href like this:</p>
  
  <pre><code>&lt;a ng-href="{{myVar}}" &gt;x&lt;/a&gt;
  </code></pre>
  
  <p>But I can't figure out how to prefix it in my view.  The following does not give my the myVar</p>
  
  <pre><code>&lt;a ng-href="http://{{myVar}}" &gt;x&lt;/a&gt;
  </code></pre>
  
  <p>Thanks for any help on this.</p>