[littlestymaar]

Go misses almost all tools a functional programming language offers (no iterator or combinators of any kind) and even if you really wanted and decided the verbosity wasn't a problem for you, I'm pretty sure the compiler doesn't optimize it well (it does a lot less optimisations than LLVM for instance).

[Insanity]

But those things don't make a language functional. It's like saying there are no lambda statements as there is no lambda syntax, but syntax != feature.

I mean I see your point, and if I really wanted to be fully functional I'd use a language _with_ those things like Haskell. But not being mutable is easy in Go too.