We also plan to use Scala.js in our next brand-new UI of ChatWork (https://www.chatwork.com https://www.chatwork.com). Please be noted that we won't use scala-

We also plan to use Scala.js in our next brand-new UI of ChatWork (https://www.chatwork.com https://www.chatwork.com). Please be noted that we won't use scala-react because Scala.js can communicate with React by postMessage. disclosure: I work for chatwork as chief front-end engineer.