diff --git a/codewars/8kyu/what-s-the-real-floor/koronya.js b/codewars/8kyu/what-s-the-real-floor/koronya.js
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+++ b/codewars/8kyu/what-s-the-real-floor/koronya.js
@@ -0,0 +1,18 @@
+// [JS][8kyu] What's the real floor?
+// what-s-the-real-floor
+// https://www.codewars.com/kata/574b3b1599d8f897470018f6/train/javascript
+
+const getRealFloor = (n) => {
+  if (n <= 0) {
+    return n
+  }
+  if (n >= 13) {
+    return n - 2
+  }
+  return n - 1
+}
+
+getRealFloor(1) === 0
+getRealFloor(5) === 4
+getRealFloor(15) === 13
+getRealFloor(-2) === -2