Fibers (coroutines) solves most of the criticism for JS. Although not part of the language and you need to extend v8, it's a viable option for webservers. I bel

Fibers (coroutines) solves most of the criticism for JS. Although not part of the language and you need to extend v8, it's a viable option for webservers. I believe that's how the Meteor framework has been doing it years before async/await or even promises was a thing.