At the risk of sounding inflammatory... I would be willing to believe that purely functional languages are the "one true way" if there were even the slightest bit of empirical evidence to support it. But where are all the successful large scale projects built with Haskell (or Clojure or whatever)?
The biggest FP project I was aware of was Twitter using Scala and they ended up completely backing away from it. Yikes.
The only other popular site that springs to mind is Hacker News, and frankly, it sucks. It's practically the Hello World of discussion forums.
The truth is, at the end of the day almost everything is being built with Java, Python, Ruby, or JavaScript. Can you really blame the product owners for being wary of writing their whole product in a functional language?
The biggest FP project I was aware of was Twitter using Scala and they ended up completely backing away from it. Yikes.
The only other popular site that springs to mind is Hacker News, and frankly, it sucks. It's practically the Hello World of discussion forums.
The truth is, at the end of the day almost everything is being built with Java, Python, Ruby, or JavaScript. Can you really blame the product owners for being wary of writing their whole product in a functional language?