From 1c25e9b03ee4f6b436c4a993a7f1fc82c271ea4f Mon Sep 17 00:00:00 2001
From: koronya <koronya@hanmail.net>
Date: Wed, 18 Mar 2026 05:11:37 +0900
Subject: [PATCH] [JS][7kyu] Get decimal part of the given number

---
 .../koronya.js                                     | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 codewars/7kyu/get-decimal-part-of-the-given-number/koronya.js

diff --git a/codewars/7kyu/get-decimal-part-of-the-given-number/koronya.js b/codewars/7kyu/get-decimal-part-of-the-given-number/koronya.js
new file mode 100644
index 000000000..47f57ffa7
--- /dev/null
+++ b/codewars/7kyu/get-decimal-part-of-the-given-number/koronya.js
@@ -0,0 +1,14 @@
+// [JS][7kyu] Get decimal part of the given number
+// get-decimal-part-of-the-given-number
+// https://www.codewars.com/kata/586e4c61aa0428f04e000069/train/javascript
+
+const getRoundNumber = (num, n) => Math.round(num * 10 ** n) / 10 ** n
+
+const getDecimal = (n) => {
+  const afterDotLength = String(n).split('.')[1]?.length || 0
+  return getRoundNumber(Math.abs(n) % 1, afterDotLength)
+}
+
+getDecimal(10) === 0
+getDecimal(-1.2) === 0.2
+getDecimal(4.5) === 0.5