Haskell rocks

In this thread we praise the awesome Haskell and extol on its glorious features

for instance, say you have an arbitrarily complex data type, if you add
          deriving (Show, Read, Eq)
to the definition

Haskell will automatically figure out how to 1) convert it into a string 2) parse a string into data 3) compare for equality

How fucking awesome is that! Automatic hassle-free serialisation!

No more fucking around with how to parse a matrix! read m :: Matrix yay!

I'd rather praise Qbasic. I use to program with it when I was twelwe and, oh golly, I was quite impressed. You don't even have to declare your variables, how timesaving!