From 9600a1501a66683a47ce1a3dca80bc8473a90959 Mon Sep 17 00:00:00 2001
From: koronya <koronya@hanmail.net>
Date: Mon, 13 Apr 2026 03:47:08 +0900
Subject: [PATCH] [JS][7kyu] Sum of a Beach

---
 codewars/7kyu/sum-of-a-beach/koronya.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 codewars/7kyu/sum-of-a-beach/koronya.js

diff --git a/codewars/7kyu/sum-of-a-beach/koronya.js b/codewars/7kyu/sum-of-a-beach/koronya.js
new file mode 100644
index 000000000..a53bd2ea9
--- /dev/null
+++ b/codewars/7kyu/sum-of-a-beach/koronya.js
@@ -0,0 +1,15 @@
+// [JS][7kyu] Sum of a Beach
+// sum-of-a-beach
+// https://www.codewars.com/kata/5b37a50642b27ebf2e000010/train/javascript
+
+const sumOfABeach = (beach) => {
+  const lowerBeach = beach.toLowerCase()
+  const pattern = /sand|water|fish|sun/g
+  const result = lowerBeach.match(pattern)
+  return result ? result.length : 0
+}
+
+sumOfABeach('WAtErSlIde') === 1
+sumOfABeach('GolDeNSanDyWateRyBeaChSuNN') === 3
+sumOfABeach('gOfIshsunesunFiSh') === 4
+sumOfABeach('cItYTowNcARShoW') === 0