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A comment on It never makes sense to use foldl on lists in Haskell (2019). Parent comment

Re:It never makes sense to use foldl on lists in Haskell (2019) by mrkeen on Saturday March 21, 2020 @04:05AM (#22645253)
If it's immutable there's no need to copy.
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Re:It never makes sense to use foldl on lists in Haskell (2019) by didibus on Saturday March 21, 2020 @05:46PM (#22650460)
That's true of any data-structure though.
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