1 files changed, 13 insertions, 0 deletions
diff --git a/src/Utils/Maybe.elm b/src/Utils/Maybe.elm
new file mode 100644
index 0000000..25d02e7
--- /dev/null
+++ b/src/Utils/Maybe.elm
@@ -0,0 +1,13 @@
+module Utils.Maybe
+  ( filterMaybe
+  ) where
+
+filterMaybe : (a -> Bool) -> Maybe a -> Maybe a
+filterMaybe cond maybe =
+  case maybe of
+    Just x ->
+      if cond x
+        then Just x
+        else Nothing
+    Nothing ->
+      Nothing