From f4a581ab7640aaf26d28b98353cacfb98b6a9286 Mon Sep 17 00:00:00 2001
From: koronya <koronya@hanmail.net>
Date: Sat, 30 May 2026 22:54:18 +0900
Subject: [PATCH] [JS][7kyu] Sum and Length

---
 codewars/7kyu/sum-and-length/koronya.js | 35 +++++++++++++++++++++++++
 1 file changed, 35 insertions(+)
 create mode 100644 codewars/7kyu/sum-and-length/koronya.js

diff --git a/codewars/7kyu/sum-and-length/koronya.js b/codewars/7kyu/sum-and-length/koronya.js
new file mode 100644
index 000000000..40cf5eba2
--- /dev/null
+++ b/codewars/7kyu/sum-and-length/koronya.js
@@ -0,0 +1,35 @@
+// [JS][7kyu] Sum and Length
+// sum-and-length
+// https://www.codewars.com/kata/571965ccdf7fdb10a00000ea/train/javascript
+
+const sumLength = (array) => {
+  if (array.length === 0) {
+    return '0 0'
+  }
+  let isZeroNetgative = true
+  let sumOfPositive = 0
+  let countOfNegative = 0
+  array.forEach((num) => {
+    if (num > 0) {
+      sumOfPositive += num
+    } else if (num < 0) {
+      countOfNegative += 1
+    }
+    if (num === 0) {
+      if (isZeroNetgative) {
+        countOfNegative += 1
+      }
+      isZeroNetgative = !isZeroNetgative
+    }
+  })
+
+  return `${sumOfPositive} ${countOfNegative}`
+}
+
+sumLength([1, 2, 3, 4, -1, -2, -3])
+sumLength([1, 2, 3, 4, 0, -1, -2, -3])
+sumLength([-1, 2, 3, 4, 0, 1, 0, -2, 0, -3])
+sumLength([-1, -2, -3, -4, 0, -1, 0, -2, 0, -3])
+sumLength([1, 2, 3, 4, 1, 2, 3])
+sumLength([0, 0, 0, 0, 0, 0, 0])
+sumLength([])