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Although, this is pretty advanced since we're making use of higher order functions already.
Deriving the 'inefficient' solution first, before learning why it's inefficient is the way to go.
yet I read on haskell.org/prelude, "Also note that if you want an efficient left-fold, you probably want to use foldl' instead of foldl." So maybe this isn't that efficient? Can you say a word about this? (I'm a complete newbie... :-))
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Or, with
flip:Although, this is pretty advanced since we're making use of higher order functions already. Deriving the 'inefficient' solution first, before learning why it's inefficient is the way to go.
yet I read on haskell.org/prelude, "Also note that if you want an efficient left-fold, you probably want to use
foldl'instead offoldl." So maybe this isn't that efficient? Can you say a word about this? (I'm a complete newbie... :-))