title: template string of es6 in attribute of react component
body: <p>I can use a double and single quote to concatenate my dynamic variable but template string is cleaner. I got an unexpected token, any clue why? </p>
  
  <pre><code>...
  return (&lt;UserList id={subactions} key=`applications${query.status}` /&gt;)
  ...
  </code></pre>