diff --git a/codewars/7kyu/find-the-lucky-numbers/koronya.js b/codewars/7kyu/find-the-lucky-numbers/koronya.js
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+++ b/codewars/7kyu/find-the-lucky-numbers/koronya.js
@@ -0,0 +1,8 @@
+// [JS][7kyu] Find the lucky numbers
+// find-the-lucky-numbers
+// https://www.codewars.com/kata/580435ab150cca22650001fb/train/javascript
+
+const filterLucky = (x) => x.filter((num) => num.toString().includes('7'))
+
+filterLucky([1, 2, 3, 4, 5, 6, 7, 68, 69, 70, 15, 17])
+filterLucky([71, 9907, 69])