title: EmberJS Template concatenate
body: <p>How can I can concatenate strings( or how to add classes ) on templates on EmberJs?</p>
  
  <p>ex.</p>
  
  <pre><code>&lt;script type="text/x-handlebars"&gt;
  // This div I want to add a class go, Is this the right way to do it?
  &lt;div class="fly {{isGo}}"&gt;Fly now&lt;/div&gt;
  
  // Or it's something like this?
  &lt;div class="fly "{{isGo}} &gt;Fly now&lt;/div&gt;
  &lt;/script&gt;
  </code></pre>