Again, all the IO still has to be done in javascript, you can only do raw processing in web assembly right now. If you try to write the web assembly part in ru

Again, all the IO still has to be done in javascript, you can only do raw processing in web assembly right now. If you try to write the web assembly part in ruby, you are sending your users a run time and using an interpreter that is itself being JITed, purely to transform some amounts of data between IO from the user, including any information to and from the DOM.