3 Jan
2006
3 Jan
'06
12:42 p.m.
On Tuesday 03 Jan 2006 5:37 pm, Christian Maeder wrote:
Daniel Carrera wrote:
Question: What do you call a function that has side-effects? (like putStr) I know that "function" is the wrong term.
"action", "command", "program", etc.
Actually (at the risk of appearing pedantic), I think it's important to make clear that "function" *is* the correct term for putStr.. putStr :: String -> IO () It's expressions like (putStr "Hello World") of type IO <something> that are (what I would call) "actions". Haskell has no name for "functions that have side-effects". They don't exist (well not unless you're grossly abusing unsafePerformIO). Regards -- Adrian Hey