foldr

lib.foldr

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fold is an alias of foldr for historic reasons

(lib.lists.fold)

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Aliases

lib.fold
lib.lists.fold
lib.lists.foldr

Implementation

The following is the current implementation of this function.

foldr = op: nul: list:
    let
      len = length list;
      fold' = n:
        if n == len
        then nul
        else op (elemAt list n) (fold' (n + 1));
    in fold' 0;