We also plan to use Scala.js in our next brand-new UI of ChatWork (<a href="https:&#x2F;&#x2F;www.chatwork.com" rel="nofollow">https:&#x2F;&#x2F;www.chatwork.com</a>).<p>Please be noted that we won&#x27;t use scala-react because Scala.js can communicate with React by postMessage.<p>disclosure: I work for chatwork as chief front-end engineer.