From 0b4a5785361a1f23dbba060127b252cc5e99e0cc Mon Sep 17 00:00:00 2001
From: Gian Vallejos <gian.vallejos92@gmail.com>
Date: Tue, 5 Sep 2023 16:29:13 -0500
Subject: [PATCH 1/2] Module of Power of Two

---
 Bit-Manipulation/ModuleOfPowerOfTwo.js        | 10 +++++
 .../test/ModuleOfPowerOfTwo.test.js           | 37 +++++++++++++++++++
 2 files changed, 47 insertions(+)
 create mode 100644 Bit-Manipulation/ModuleOfPowerOfTwo.js
 create mode 100644 Bit-Manipulation/test/ModuleOfPowerOfTwo.test.js

diff --git a/Bit-Manipulation/ModuleOfPowerOfTwo.js b/Bit-Manipulation/ModuleOfPowerOfTwo.js
new file mode 100644
index 0000000000..30802e858e
--- /dev/null
+++ b/Bit-Manipulation/ModuleOfPowerOfTwo.js
@@ -0,0 +1,10 @@
+/**
+ * @author: gianvallejos92
+ * This script will find the module of S % N using bitmask
+ * N is power of 2. E.g: 1, 2, 4, 8, 16, 32...
+ * Reference: https://www.geeksforgeeks.org/compute-modulus-division-by-a-power-of-2-number/
+ */
+
+export const ModuleOfPowerOfTwo = (s, n) => {
+  return (s & (n - 1))
+}
\ No newline at end of file
diff --git a/Bit-Manipulation/test/ModuleOfPowerOfTwo.test.js b/Bit-Manipulation/test/ModuleOfPowerOfTwo.test.js
new file mode 100644
index 0000000000..e7b641693a
--- /dev/null
+++ b/Bit-Manipulation/test/ModuleOfPowerOfTwo.test.js
@@ -0,0 +1,37 @@
+import { ModuleOfPowerOfTwo } from '../ModuleOfPowerOfTwo'
+
+test('Check 7 module 4', () => {
+  const res = ModuleOfPowerOfTwo(7, 4)
+  expect(res).toBe(3)
+})
+
+test('Check 150 module 4', () => {
+  const res = ModuleOfPowerOfTwo(150, 4)
+  expect(res).toBe(2)
+})
+
+test('Check 155 module 2', () => {
+  const res = ModuleOfPowerOfTwo(155, 2)
+  expect(res).toBe(1)
+})
+
+test('Check 150 module 16', () => {
+  const res = ModuleOfPowerOfTwo(150, 16)
+  expect(res).toBe(6)
+})
+
+test('Check 6 module 4', () => {
+  const res = ModuleOfPowerOfTwo(6, 4)
+  expect(res).toBe(2)
+})
+
+test('Check 12 module 8', () => {
+  const res = ModuleOfPowerOfTwo(12, 8)
+  expect(res).toBe(4)
+})
+
+test('Check 10 module 2', () => {
+  const res = ModuleOfPowerOfTwo(10, 2)
+  expect(res).toBe(0)
+})
+

From f6c42bb28d7c26f50f0eb5ff07f52e71139fce72 Mon Sep 17 00:00:00 2001
From: Gian Vallejos <gian.vallejos92@gmail.com>
Date: Tue, 5 Sep 2023 16:42:20 -0500
Subject: [PATCH 2/2] fix standard style

---
 Bit-Manipulation/ModuleOfPowerOfTwo.js           | 2 +-
 Bit-Manipulation/test/ModuleOfPowerOfTwo.test.js | 1 -
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/Bit-Manipulation/ModuleOfPowerOfTwo.js b/Bit-Manipulation/ModuleOfPowerOfTwo.js
index 30802e858e..5d83c1571b 100644
--- a/Bit-Manipulation/ModuleOfPowerOfTwo.js
+++ b/Bit-Manipulation/ModuleOfPowerOfTwo.js
@@ -7,4 +7,4 @@
 
 export const ModuleOfPowerOfTwo = (s, n) => {
   return (s & (n - 1))
-}
\ No newline at end of file
+}
diff --git a/Bit-Manipulation/test/ModuleOfPowerOfTwo.test.js b/Bit-Manipulation/test/ModuleOfPowerOfTwo.test.js
index e7b641693a..9502061afc 100644
--- a/Bit-Manipulation/test/ModuleOfPowerOfTwo.test.js
+++ b/Bit-Manipulation/test/ModuleOfPowerOfTwo.test.js
@@ -34,4 +34,3 @@ test('Check 10 module 2', () => {
   const res = ModuleOfPowerOfTwo(10, 2)
   expect(res).toBe(0)
 })
-