What can make scala more popular?

[AMatveev]

@tarsa

All I see is mutable HTML DSLs
…
Here you have your killer feature In FP

I have never said that it is killer feature for FP. I have thought it is obvious.

@AMatveev

It is not problem for json, it is not big problem for html(Html has a very flexible structure).
But for many dsl which have a lot of context dependent grammar.(sql,xml[with xsd],etc)

@tarsa

type HtmlChild = ElemHead | ElemBody

I have not seen simple scope management here.