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Diffstat (limited to 'client/elm/battlemap/src/Util/List.elm')
| -rw-r--r-- | client/elm/battlemap/src/Util/List.elm | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/client/elm/battlemap/src/Util/List.elm b/client/elm/battlemap/src/Util/List.elm new file mode 100644 index 0000000..c4db397 --- /dev/null +++ b/client/elm/battlemap/src/Util/List.elm @@ -0,0 +1,12 @@ +module Util.List exposing (pop) + +import List + +pop : List a -> (Maybe (a, List a)) +pop l = + case + ((List.head l), (List.tail l)) + of + (Nothing, _) -> Nothing + (_ , Nothing) -> Nothing + ((Just head), (Just tail)) -> (Just (head, tail)) |