Scala can do it, except for // starting a comment, so it would have to be foo ? https:/developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements

Scala can do it, except for // starting a comment, so it would have to be foo ? https:/developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/label which of course isn't as cool. Still pretty close though.