Re:Haskell in Production
by nightski on Friday October 18, 2019 @04:49PM
(#21294961)
The entire point of monadic (do) syntax in Haskell is to make this convenient. I'm not following you exactly.
[ Parent
| on HN ]
runeks mentioned
print “Enter name:”
print (“Hello “ ++ readStdinLine ++ “!”)
which can't be written like that with do notation. It's also pretty confusing code to write in any language, so maybe that's not a problem.True, do notation does require you to add a line -
main = do
print "Enter name:"
name <- getLine
print ("Hello " ++ name ++ "!")
But I only said that it makes this convenient not that it allowed you to write any statement you want. It still makes it easy to intersperse pure and non-pure code.