Google just release tensorflow support javascript and swift. I don't understand why would somebody go with swift for this, if javascript is the language for the web. with javascript you could not just make a web app but also potentially like almost native app using frameworks. so, where is the use case for swift? probably running on IOT devices? or is swift is faster than javascript?

Javascript should just upgraded its syntax to be more swift syntax in the near future, that would be a game changer.