title: convert css unicode to js
body: <p>I have a couple of emoji  unicodes that works well in css:</p>
  <pre class="lang-css prettyprint-override"><code>    content: &quot;\f410&quot;
      content: &quot;\f2d1&quot;
  </code></pre>
  <p>I tries to <a href="https://www.educative.io/edpresso/how-to-insert-unicode-in-javascript" rel="nofollow noreferrer">output it with javascript</a>, but I failed, I will be so grateful for any suggestion you may offer.</p>
  <pre class="lang-js prettyprint-override"><code>console.log('\f410');
  console.log('\Uf410');
  </code></pre>