title: scala better syntax for map getOrElse
body: <p>is there a better way to write the code below?</p>
  
  <pre><code>val t = map.get('type).getOrElse(""); 
  if (t != "") "prefix" + t;
  </code></pre>
  
  <p>be interested in inline code something like</p>
  
  <pre><code>val t = map.get('type).getOrElse("").????
  </code></pre>