Brent Yorgey wrote:
but isn't there a short text that describes in detail why foldl' is
different from foldl and why foldr is "better" in many cases? I thought
this faq would have been cached already :)
Perhaps you're thinking of http://haskell.org/haskellwiki/Stack_overflow ?
Ah, that looks better, although it's a bit messy for my taste. I've
scribbled a hopefully gentler explanation at
http://en.wikibooks.org/wiki/Haskell/Performance_Introduction .
Regards,
apfelmus
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