From 9130810c9837ace8dd3683b6be074b0b27d4fa50 Mon Sep 17 00:00:00 2001
From: Abhinav Kumar <68495520+abhinav2712@users.noreply.github.com>
Date: Mon, 24 Oct 2022 00:56:57 +0530
Subject: [PATCH 1/3] Create factorial.js

---
 Math/Problems/Javascript/factorial.js | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
 create mode 100644 Math/Problems/Javascript/factorial.js

diff --git a/Math/Problems/Javascript/factorial.js b/Math/Problems/Javascript/factorial.js
new file mode 100644
index 0000000..5c3d090
--- /dev/null
+++ b/Math/Problems/Javascript/factorial.js
@@ -0,0 +1,23 @@
+// program to find the factorial of a number
+
+// take input from the user
+const number = parseInt(prompt('Enter a positive integer: '));
+
+// checking if number is negative
+if (number < 0) {
+    console.log('Error! Factorial for negative number does not exist.');
+}
+
+// if number is 0
+else if (number === 0) {
+    console.log(`The factorial of ${number} is 1.`);
+}
+
+// if number is positive
+else {
+    let fact = 1;
+    for (i = 1; i <= number; i++) {
+        fact *= i;
+    }
+    console.log(`The factorial of ${number} is ${fact}.`);
+}

From a4635a61c357977f54670da9152391325d6f6258 Mon Sep 17 00:00:00 2001
From: Abhinav Kumar <68495520+abhinav2712@users.noreply.github.com>
Date: Tue, 25 Oct 2022 01:01:00 +0530
Subject: [PATCH 2/3] Update factorial.js

---
 Math/Problems/Javascript/factorial.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Math/Problems/Javascript/factorial.js b/Math/Problems/Javascript/factorial.js
index 5c3d090..954d621 100644
--- a/Math/Problems/Javascript/factorial.js
+++ b/Math/Problems/Javascript/factorial.js
@@ -5,12 +5,12 @@ const number = parseInt(prompt('Enter a positive integer: '));
 
 // checking if number is negative
 if (number < 0) {
-    console.log('Error! Factorial for negative number does not exist.');
+   return -1;
 }
 
 // if number is 0
 else if (number === 0) {
-    console.log(`The factorial of ${number} is 1.`);
+    return 1;
 }
 
 // if number is positive
@@ -19,5 +19,5 @@ else {
     for (i = 1; i <= number; i++) {
         fact *= i;
     }
-    console.log(`The factorial of ${number} is ${fact}.`);
+    return fact;
 }

From 2b8ead74237bbf38830efc3b7c3ae372a8d23512 Mon Sep 17 00:00:00 2001
From: Abhinav Kumar <68495520+abhinav2712@users.noreply.github.com>
Date: Tue, 25 Oct 2022 12:40:16 +0530
Subject: [PATCH 3/3] Update factorial.js

---
 Math/Problems/Javascript/factorial.js | 30 +++++++--------------------
 1 file changed, 8 insertions(+), 22 deletions(-)

diff --git a/Math/Problems/Javascript/factorial.js b/Math/Problems/Javascript/factorial.js
index 954d621..cb53c9d 100644
--- a/Math/Problems/Javascript/factorial.js
+++ b/Math/Problems/Javascript/factorial.js
@@ -1,23 +1,9 @@
-// program to find the factorial of a number
-
-// take input from the user
-const number = parseInt(prompt('Enter a positive integer: '));
-
-// checking if number is negative
-if (number < 0) {
-   return -1;
-}
-
-// if number is 0
-else if (number === 0) {
-    return 1;
-}
-
-// if number is positive
-else {
-    let fact = 1;
-    for (i = 1; i <= number; i++) {
-        fact *= i;
-    }
-    return fact;
+function factorial(num) {
+  if (num < 0) 
+        return -1;
+  else if (num == 0) 
+      return 1;
+  else {
+      return (num * factorial(num - 1));
+  }
 }