5 ms·

I think there's definitely a rule against dismissing Y combinators on news.ycombinator.com.

• derefr 13y ago
  They're important in CS theory, sure, but you sure don't want to encounter one in raw form lurking in a regular codebase. (Just like you wouldn't want to encounter monadic IO in raw >>= form.)
  • maxiepoo 13y ago
    Using the y combinator outside of some ridiculously abstract code would be irritating. Using (>>=) makes sense sometimes though. For instance if you just wanted to echo something you could do do stuff <- getLine putStrLn stuff but the stuff variable is then unnecessarily introduced. You could instead just write getLine >>= putStrLn or the flipped version if you want it to read more like function application putStrLn =<< getLine
    • deleted 13y ago
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    • logicallee 13y ago
      how do neither of you get the obvious joke OP is making with "I think there's definitely a rule against dismissing Y combinators on news.ycombinator.com". (he's making a joke out of the fact that YCombinator is named after the construct.)
      • buu700 13y ago
        That wasn't a joke.. People have been hellbanned for speaking ill of Y combinators.
        • eruditely 13y ago
          Really?
          • thirsteh 13y ago
            Maybe that was the joke.
  • Sssnake 13y ago
    >Just like you wouldn't want to encounter monadic IO in raw >>= form Yes I would. I would much rather see "getLine >>= putStrLn" than a 2 line do block.
• deleted 13y ago
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