So what you basically want is to spread the arg before you call the func?

Yup. Just wondering if it's something JB considered to make possible.

{ (str, int) -> func(str, int) }

seems verbose compared to

(::func)

.

It would be a nice feature if you ask me, but not sure how easy it would be to implement

Sure it is possible. This is programming 😉

I'd rather not have

arg.key

and

arg.value

instead of nicely named params inside the function.