title: Jade template to jQuery
body: <p>In a Jade file, how can I write something like this:</p>
  
  <pre><code>script. // Jade
   $('button').on('cick', function(){
    $('div').append(
     extend template // Jade
    );
   });
  </code></pre>
  
  <p>Where "template" is a block saved in a separate file somehow?</p>