title: Question mark syntax from CoffeeScript without CoffeeScript
body: <p>CoffeeScript has such syntax sugar:</p>
  
  <pre><code>item.getFoo?().fooParam?.bar
  </code></pre>
  
  <p>Which translates into long javascript equivalent with <code>getFoo==null</code> and <code>fooParam==null</code> checks. The question is: are there any ways to use this syntax in vanilla javascript with a library/translator/compiler other than CoffeeScript? We use Traceur in our project, but it doesn't have such syntax because it is not ES6 compliant (although I wish it to). Maybe some way to implement it within Traceur fork?</p>