From ac6884f28b7d49157dc9f136b8e066deb1e21820 Mon Sep 17 00:00:00 2001
From: Farhan Ghumra <Xyroid@users.noreply.github.com>
Date: Tue, 2 Oct 2018 01:41:48 +0530
Subject: [PATCH] Create factorial.js

added JS file for example of finding factorial of given number

https://github.com/As2771/Hacktoberfest-2k18/issues/14
---
 factorial.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 factorial.js

diff --git a/factorial.js b/factorial.js
new file mode 100644
index 0000000..1c3349c
--- /dev/null
+++ b/factorial.js
@@ -0,0 +1,15 @@
+function fact(x) {
+   if (x === 0) {
+      return 1;
+   }
+   return x * fact(x - 1);  // recursion
+}
+
+function run(number) {
+  if (typeof number === "number") // validation
+    alert(fact(number));
+  else
+    alert('Enter number');
+}
+
+run(5) // returns 120