From 435797134b1b37e674720b6fbab4105ac7972f61 Mon Sep 17 00:00:00 2001
From: koddi-volenday <koddi.evangelista@volenday.com>
Date: Tue, 4 Oct 2022 20:31:00 +0800
Subject: [PATCH] feat: add javascript rounding of number algorithm

---
 Javascript/Numbers/roundNumber.js | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 Javascript/Numbers/roundNumber.js

diff --git a/Javascript/Numbers/roundNumber.js b/Javascript/Numbers/roundNumber.js
new file mode 100644
index 0000000..24eccb9
--- /dev/null
+++ b/Javascript/Numbers/roundNumber.js
@@ -0,0 +1,10 @@
+// Round a number based on a given number of digits
+const round = (n, decimals = 0) => {
+  // firstly, check that input is a number or not.
+  if (typeof n !== 'number') {
+    return 'not a number.'
+  }
+  return Number(`${Math.round(`${n}e${decimals}`)}e-${decimals}`)
+}
+
+console.log(round(1.234567, 4))