From d83f34c463f4b51c868f8be5d97f9d986c320086 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Tue, 22 Sep 2026 17:17:31 +0100
Subject: [PATCH 01/20] Fix capitalise function

---
 Sprint-3/1-key-errors/0.js | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/Sprint-3/1-key-errors/0.js b/Sprint-3/1-key-errors/0.js
index 653d6f5a0..dbdb8825f 100644
--- a/Sprint-3/1-key-errors/0.js
+++ b/Sprint-3/1-key-errors/0.js
@@ -1,13 +1,22 @@
 // Predict and explain first...
-//  =============> write your prediction here
+// I believe this will cause an error because str is declared twice
 
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
 
-function capitalise(str) {
+/* function capitalise(str) {
   let str = `${str[0].toUpperCase()}${str.slice(1)}`;
   return str;
 }
+*/
+
+// The error happens because str is declared twice, once as a parameter & again with let
+// If I give the new variable a different name, I hope it should work :) 
+
+
+function capitalise(str) {
+  let newString = `${str[0].toUpperCase()}${str.slice(1)}`;
+  return newString;
+}
 
-// =============> write your explanation here
-// =============> write your new code here
+console.log(capitalise("frumentius"));
\ No newline at end of file

From dc3752d79fbb84f69ddbb7b9b5a37998f3eca2b0 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Tue, 22 Sep 2026 18:58:51 +0100
Subject: [PATCH 02/20] Fix % conversion

---
 Sprint-3/1-key-errors/1.js | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/Sprint-3/1-key-errors/1.js b/Sprint-3/1-key-errors/1.js
index f2d56151f..4a69d5c76 100644
--- a/Sprint-3/1-key-errors/1.js
+++ b/Sprint-3/1-key-errors/1.js
@@ -1,10 +1,12 @@
 // Predict and explain first...
 
 // Why will an error occur when this program runs?
-// =============> write your prediction here
+// Because decimalNumber is declared twice, once as a parameter and again with const
 
 // Try playing computer with the example to work out what is going on
 
+/*
+
 function convertToPercentage(decimalNumber) {
   const decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
@@ -12,9 +14,19 @@ function convertToPercentage(decimalNumber) {
   return percentage;
 }
 
-console.log(decimalNumber);
+console.log(convertToPercentage(decimalNumber)); */
 
-// =============> write your explanation here
+// decimalNumber is already a parameter, so declaring it again with const causes an error
+// decimalNumber has already been declared as a parameter in the same function scope
+// console.log(decimalNumber) is wrong because decimalNumber is not defined outside the function,
+// so we need to call the function with a value
 
 // Finally, correct the code to fix the problem
-// =============> write your new code here
+
+function convertToPercentage(decimalNumber) {
+  const percentage = `${decimalNumber * 100}%`;
+
+  return percentage;
+}
+
+console.log(convertToPercentage("26"));
\ No newline at end of file

From 53921fe9a9c992177303d0056d90d9036ee6846a Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Wed, 23 Sep 2026 22:18:08 +0100
Subject: [PATCH 03/20] Fix parameter name

---
 Sprint-3/1-key-errors/2.js | 21 +++++++++++++++++----
 1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/Sprint-3/1-key-errors/2.js b/Sprint-3/1-key-errors/2.js
index aad57f7cf..b78aebccf 100644
--- a/Sprint-3/1-key-errors/2.js
+++ b/Sprint-3/1-key-errors/2.js
@@ -4,17 +4,30 @@
 // this function should square any number but instead we're going to get an error
 
 // =============> write your prediction of the error here
+// I think using 3 will cause an error as parameter
+// A parameter must be a valid variable name, not a number 
 
-function square(3) {
-    return num * num;
-}
+ /* function square(3){
+   return  num * num;
 
-// =============> write the error message here
+}
+   */
+ 
+// =============> write the error message here 
+// SyntaxError: Unexpected number
 
 // =============> explain this error message here
+// The parser sees the number 3 where it expects a valid parameter name,
+// so it cannot understand the structure of the function
+// It means we cannot use a number as a parameter name
+
 
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
+function square(num){
+   return  num * num;
 
+}
+console.log(square(7));
\ No newline at end of file

From 62255c066b58f44d6fc8a9a4904d8630a5b874ac Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Thu, 24 Sep 2026 00:14:56 +0100
Subject: [PATCH 04/20] Debug return value

---
 Sprint-3/2-mandatory-debug/0.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Sprint-3/2-mandatory-debug/0.js b/Sprint-3/2-mandatory-debug/0.js
index b27511b41..2d11688cc 100644
--- a/Sprint-3/2-mandatory-debug/0.js
+++ b/Sprint-3/2-mandatory-debug/0.js
@@ -1,14 +1,25 @@
 // Predict and explain first...
 
 // =============> write your prediction here
+// I believe the function will calculate 10 x 32 
 
 function multiply(a, b) {
   console.log(a * b);
+
 }
 
 console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
 // =============> write your explanation here
 
+// After calling multiply(10, 32), the result is undefined because there is no return statement 
+// It can still print 320 because console.log() prints the result inside the function
+
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+
+function multiply(a, b) {
+  console.log(a * b);
+  return a * b;
+}
+console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
\ No newline at end of file

From d423953790abe53860668a0443b524e63109efc3 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Thu, 24 Sep 2026 00:31:13 +0100
Subject: [PATCH 05/20] Debug return statement

---
 Sprint-3/2-mandatory-debug/1.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/Sprint-3/2-mandatory-debug/1.js b/Sprint-3/2-mandatory-debug/1.js
index 37cedfbcf..94152f639 100644
--- a/Sprint-3/2-mandatory-debug/1.js
+++ b/Sprint-3/2-mandatory-debug/1.js
@@ -1,13 +1,22 @@
 // Predict and explain first...
 //  =============> write your prediction here
+// I guess the function will return error or undefined because the return; 
 
-function sum(a, b) {
+/*function sum(a, b) {
   return;
   a + b;
 }
 
-console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
+console.log(`The sum of 10 and 32 is ${sum(10, 32)}`); */
 
 // =============> write your explanation here
+// The problem is the semicolon immediately after return that prevent to reach out to a + b
+
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+
+function sum(a, b) {
+  return a + b;
+}
+
+console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);

From 47e5c24c58ea321d6bf36db2098e54bbc0d42200 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Thu, 24 Sep 2026 02:02:48 +0100
Subject: [PATCH 06/20] Debug last digit function

---
 Sprint-3/2-mandatory-debug/2.js | 23 +++++++++++++++++++++--
 1 file changed, 21 insertions(+), 2 deletions(-)

diff --git a/Sprint-3/2-mandatory-debug/2.js b/Sprint-3/2-mandatory-debug/2.js
index 57d3f5dc3..71ba07caa 100644
--- a/Sprint-3/2-mandatory-debug/2.js
+++ b/Sprint-3/2-mandatory-debug/2.js
@@ -2,8 +2,9 @@
 
 // Predict the output of the following code:
 // =============> Write your prediction here
+// The output will be the same because we don't give the function a parameter 
 
-const num = 103;
+/*const num = 103;
 
 function getLastDigit() {
   return num.toString().slice(-1);
@@ -11,14 +12,32 @@ function getLastDigit() {
 
 console.log(`The last digit of 42 is ${getLastDigit(42)}`);
 console.log(`The last digit of 105 is ${getLastDigit(105)}`);
-console.log(`The last digit of 806 is ${getLastDigit(806)}`);
+console.log(`The last digit of 806 is ${getLastDigit(806)}`); */
 
 // Now run the code and compare the output to your prediction
 // =============> write the output here
+// The output is the same but the last digit is 3
+
 // Explain why the output is the way it is
 // =============> write your explanation here
+// Because of the global variable and also because the function has no parameter
+
+
 // Finally, correct the code to fix the problem
 // =============> write your new code here
 
+const num = 103;
+
+function getLastDigit(num) {
+  return num.toString().slice(-1);
+}
+
+console.log(`The last digit of 42 is ${getLastDigit(42)}`);
+console.log(`The last digit of 105 is ${getLastDigit(105)}`);
+console.log(`The last digit of 806 is ${getLastDigit(806)}`);
+
+
 // This program should tell the user the last digit of each number.
 // Explain why getLastDigit is not working properly - correct the problem
+
+// Because the function was using the global variable, it ignored the arguments passed to it outside of the function box 

From 6189cca8484771a0748629cb8c0264461416742f Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Thu, 24 Sep 2026 12:39:01 +0100
Subject: [PATCH 07/20] Complete BMI function

---
 Sprint-3/3-mandatory-implement/1-bmi.js | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/Sprint-3/3-mandatory-implement/1-bmi.js b/Sprint-3/3-mandatory-implement/1-bmi.js
index 58b1085f1..3156afcaa 100644
--- a/Sprint-3/3-mandatory-implement/1-bmi.js
+++ b/Sprint-3/3-mandatory-implement/1-bmi.js
@@ -15,5 +15,12 @@
 // It should return a string of their Body Mass Index to 1 decimal place
 
 function calculateBMI(weight, height) {
-  // return the BMI of someone based off their weight and height
+  let BMI = weight / (height * height)
+ 
+  return BMI.toFixed(1);
+
+  
 }
+console.log(calculateBMI(62, 1.67));
+
+// return the BMI of someone based off their weight and height
\ No newline at end of file

From d8b60b7b558c58a13beab38adca0977f4e120a32 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Thu, 24 Sep 2026 14:11:42 +0100
Subject: [PATCH 08/20] Complete uppercase conversion

---
 Sprint-3/3-mandatory-implement/2-cases.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Sprint-3/3-mandatory-implement/2-cases.js b/Sprint-3/3-mandatory-implement/2-cases.js
index 5b0ef77ad..825e82582 100644
--- a/Sprint-3/3-mandatory-implement/2-cases.js
+++ b/Sprint-3/3-mandatory-implement/2-cases.js
@@ -14,3 +14,10 @@
 // You will need to come up with an appropriate name for the function
 // Use the MDN string documentation to help you find a solution
 // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
+
+function toUpper(input) {
+    return input.replaceAll(" ", "_").toUpperCase();
+
+}
+
+console.log(toUpper("alpha and omega"));

From 20b12f0dce14dd551fe3d83f9b29f78f57a16ac2 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Thu, 24 Sep 2026 15:14:47 +0100
Subject: [PATCH 09/20] =?UTF-8?q?Complete=20=C2=A3=20function?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 Sprint-3/3-mandatory-implement/3-to-pounds.js | 28 +++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/Sprint-3/3-mandatory-implement/3-to-pounds.js b/Sprint-3/3-mandatory-implement/3-to-pounds.js
index 10754da73..015428437 100644
--- a/Sprint-3/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-3/3-mandatory-implement/3-to-pounds.js
@@ -4,3 +4,31 @@
 // You will need to declare a function called toPounds with an appropriately named parameter.
 
 // You should call this function a number of times to check it works for different inputs
+
+
+
+
+
+function toPounds(amount) {
+    const amountWithoutTrailingP = amount.substring(
+  0,
+  amount.length - 1
+);
+
+const paddedPenceNumberString = amountWithoutTrailingP.padStart(3, "0");
+const pounds = paddedPenceNumberString.substring(
+  0,
+  paddedPenceNumberString.length - 2
+);
+
+const pence = paddedPenceNumberString
+  .substring(paddedPenceNumberString.length - 2)
+  .padEnd(2, "0");
+
+  return (`£${pounds}.${pence}`)
+}
+
+
+console.log(toPounds("1250p"));
+
+

From 706a763d8b69a14e0043b18d547d13fe1d1ebaec Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Thu, 24 Sep 2026 21:24:04 +0100
Subject: [PATCH 10/20] Complete function tracing exercise

---
 Sprint-3/4-mandatory-interpret/time-format.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/Sprint-3/4-mandatory-interpret/time-format.js b/Sprint-3/4-mandatory-interpret/time-format.js
index c0dd9c9a5..07d82a99e 100644
--- a/Sprint-3/4-mandatory-interpret/time-format.js
+++ b/Sprint-3/4-mandatory-interpret/time-format.js
@@ -14,6 +14,7 @@ function formatTimeDisplay(seconds) {
 
   return `${pad(totalHours)}:${pad(remainingMinutes)}:${pad(remainingSeconds)}`;
 }
+console.log(formatTimeDisplay(61));
 
 // You will need to play computer with this example - use the Python Visualiser https://pythontutor.com/visualize.html#mode=edit
 // to help you answer these questions
@@ -27,6 +28,7 @@ function formatTimeDisplay(seconds) {
 
 // b) What is the value assigned to num when pad is called for the first time?
 // =============> write your answer here
+// 3
 
 // c) What is the return value of pad when it is called for the first time?
 // =============> write your answer here

From 7d4385b3de42ba72e0aa743c3fdccdffc90883a3 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Thu, 24 Sep 2026 22:38:29 +0100
Subject: [PATCH 11/20] Complete function tracing answers

---
 Sprint-3/4-mandatory-interpret/time-format.js | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/Sprint-3/4-mandatory-interpret/time-format.js b/Sprint-3/4-mandatory-interpret/time-format.js
index 07d82a99e..4e775e407 100644
--- a/Sprint-3/4-mandatory-interpret/time-format.js
+++ b/Sprint-3/4-mandatory-interpret/time-format.js
@@ -22,19 +22,18 @@ console.log(formatTimeDisplay(61));
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
-// =============> write your answer here
+// 3
 
 // Call formatTimeDisplay with an input of 61, now answer the following:
 
 // b) What is the value assigned to num when pad is called for the first time?
-// =============> write your answer here
-// 3
+// 0
 
 // c) What is the return value of pad when it is called for the first time?
-// =============> write your answer here
+// 00
 
 // d) What is the value assigned to num when pad is called for the last time in this program?  Explain your answer
-// =============> write your answer here
+// 1
 
 // e) What is the return value of pad when it is called for the last time in this program?  Explain your answer
-// =============> write your answer here
+// 01

From 107eaf263be4a5a93efd94d043545a762a6d2a14 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Fri, 25 Sep 2026 10:16:44 +0100
Subject: [PATCH 12/20] Format Sprint 3 with Prettier

---
 Sprint-3/1-key-errors/0.js                    |  5 ++--
 Sprint-3/1-key-errors/1.js                    |  2 +-
 Sprint-3/1-key-errors/2.js                    | 17 +++++------
 Sprint-3/2-mandatory-debug/0.js               |  7 ++---
 Sprint-3/2-mandatory-debug/1.js               |  2 +-
 Sprint-3/2-mandatory-debug/2.js               |  6 ++--
 Sprint-3/3-mandatory-implement/1-bmi.js       |  8 ++---
 Sprint-3/3-mandatory-implement/2-cases.js     |  3 +-
 Sprint-3/3-mandatory-implement/3-to-pounds.js | 30 +++++++------------
 Sprint-3/5-stretch-extend/format-time.js      |  4 +--
 10 files changed, 32 insertions(+), 52 deletions(-)

diff --git a/Sprint-3/1-key-errors/0.js b/Sprint-3/1-key-errors/0.js
index dbdb8825f..9c862b436 100644
--- a/Sprint-3/1-key-errors/0.js
+++ b/Sprint-3/1-key-errors/0.js
@@ -11,12 +11,11 @@
 */
 
 // The error happens because str is declared twice, once as a parameter & again with let
-// If I give the new variable a different name, I hope it should work :) 
-
+// If I give the new variable a different name, I hope it should work :)
 
 function capitalise(str) {
   let newString = `${str[0].toUpperCase()}${str.slice(1)}`;
   return newString;
 }
 
-console.log(capitalise("frumentius"));
\ No newline at end of file
+console.log(capitalise("frumentius"));
diff --git a/Sprint-3/1-key-errors/1.js b/Sprint-3/1-key-errors/1.js
index 4a69d5c76..cb9c2a3f9 100644
--- a/Sprint-3/1-key-errors/1.js
+++ b/Sprint-3/1-key-errors/1.js
@@ -29,4 +29,4 @@ function convertToPercentage(decimalNumber) {
   return percentage;
 }
 
-console.log(convertToPercentage("26"));
\ No newline at end of file
+console.log(convertToPercentage("26"));
diff --git a/Sprint-3/1-key-errors/2.js b/Sprint-3/1-key-errors/2.js
index b78aebccf..c0330bf46 100644
--- a/Sprint-3/1-key-errors/2.js
+++ b/Sprint-3/1-key-errors/2.js
@@ -1,19 +1,18 @@
-
 // Predict and explain first BEFORE you run any code...
 
 // this function should square any number but instead we're going to get an error
 
 // =============> write your prediction of the error here
 // I think using 3 will cause an error as parameter
-// A parameter must be a valid variable name, not a number 
+// A parameter must be a valid variable name, not a number
 
- /* function square(3){
+/* function square(3){
    return  num * num;
 
 }
    */
- 
-// =============> write the error message here 
+
+// =============> write the error message here
 // SyntaxError: Unexpected number
 
 // =============> explain this error message here
@@ -21,13 +20,11 @@
 // so it cannot understand the structure of the function
 // It means we cannot use a number as a parameter name
 
-
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
-function square(num){
-   return  num * num;
-
+function square(num) {
+  return num * num;
 }
-console.log(square(7));
\ No newline at end of file
+console.log(square(7));
diff --git a/Sprint-3/2-mandatory-debug/0.js b/Sprint-3/2-mandatory-debug/0.js
index 2d11688cc..50956778d 100644
--- a/Sprint-3/2-mandatory-debug/0.js
+++ b/Sprint-3/2-mandatory-debug/0.js
@@ -1,18 +1,17 @@
 // Predict and explain first...
 
 // =============> write your prediction here
-// I believe the function will calculate 10 x 32 
+// I believe the function will calculate 10 x 32
 
 function multiply(a, b) {
   console.log(a * b);
-
 }
 
 console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
 // =============> write your explanation here
 
-// After calling multiply(10, 32), the result is undefined because there is no return statement 
+// After calling multiply(10, 32), the result is undefined because there is no return statement
 // It can still print 320 because console.log() prints the result inside the function
 
 // Finally, correct the code to fix the problem
@@ -22,4 +21,4 @@ function multiply(a, b) {
   console.log(a * b);
   return a * b;
 }
-console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
\ No newline at end of file
+console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
diff --git a/Sprint-3/2-mandatory-debug/1.js b/Sprint-3/2-mandatory-debug/1.js
index 94152f639..45d4b156f 100644
--- a/Sprint-3/2-mandatory-debug/1.js
+++ b/Sprint-3/2-mandatory-debug/1.js
@@ -1,6 +1,6 @@
 // Predict and explain first...
 //  =============> write your prediction here
-// I guess the function will return error or undefined because the return; 
+// I guess the function will return error or undefined because the return;
 
 /*function sum(a, b) {
   return;
diff --git a/Sprint-3/2-mandatory-debug/2.js b/Sprint-3/2-mandatory-debug/2.js
index 71ba07caa..6eed48426 100644
--- a/Sprint-3/2-mandatory-debug/2.js
+++ b/Sprint-3/2-mandatory-debug/2.js
@@ -2,7 +2,7 @@
 
 // Predict the output of the following code:
 // =============> Write your prediction here
-// The output will be the same because we don't give the function a parameter 
+// The output will be the same because we don't give the function a parameter
 
 /*const num = 103;
 
@@ -22,7 +22,6 @@ console.log(`The last digit of 806 is ${getLastDigit(806)}`); */
 // =============> write your explanation here
 // Because of the global variable and also because the function has no parameter
 
-
 // Finally, correct the code to fix the problem
 // =============> write your new code here
 
@@ -36,8 +35,7 @@ console.log(`The last digit of 42 is ${getLastDigit(42)}`);
 console.log(`The last digit of 105 is ${getLastDigit(105)}`);
 console.log(`The last digit of 806 is ${getLastDigit(806)}`);
 
-
 // This program should tell the user the last digit of each number.
 // Explain why getLastDigit is not working properly - correct the problem
 
-// Because the function was using the global variable, it ignored the arguments passed to it outside of the function box 
+// Because the function was using the global variable, it ignored the arguments passed to it outside of the function box
diff --git a/Sprint-3/3-mandatory-implement/1-bmi.js b/Sprint-3/3-mandatory-implement/1-bmi.js
index 3156afcaa..3bde88c40 100644
--- a/Sprint-3/3-mandatory-implement/1-bmi.js
+++ b/Sprint-3/3-mandatory-implement/1-bmi.js
@@ -15,12 +15,10 @@
 // It should return a string of their Body Mass Index to 1 decimal place
 
 function calculateBMI(weight, height) {
-  let BMI = weight / (height * height)
- 
-  return BMI.toFixed(1);
+  let BMI = weight / (height * height);
 
-  
+  return BMI.toFixed(1);
 }
 console.log(calculateBMI(62, 1.67));
 
-// return the BMI of someone based off their weight and height
\ No newline at end of file
+// return the BMI of someone based off their weight and height
diff --git a/Sprint-3/3-mandatory-implement/2-cases.js b/Sprint-3/3-mandatory-implement/2-cases.js
index 825e82582..738bdf228 100644
--- a/Sprint-3/3-mandatory-implement/2-cases.js
+++ b/Sprint-3/3-mandatory-implement/2-cases.js
@@ -16,8 +16,7 @@
 // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
 
 function toUpper(input) {
-    return input.replaceAll(" ", "_").toUpperCase();
-
+  return input.replaceAll(" ", "_").toUpperCase();
 }
 
 console.log(toUpper("alpha and omega"));
diff --git a/Sprint-3/3-mandatory-implement/3-to-pounds.js b/Sprint-3/3-mandatory-implement/3-to-pounds.js
index 015428437..ee41cc557 100644
--- a/Sprint-3/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-3/3-mandatory-implement/3-to-pounds.js
@@ -5,30 +5,20 @@
 
 // You should call this function a number of times to check it works for different inputs
 
-
-
-
-
 function toPounds(amount) {
-    const amountWithoutTrailingP = amount.substring(
-  0,
-  amount.length - 1
-);
+  const amountWithoutTrailingP = amount.substring(0, amount.length - 1);
 
-const paddedPenceNumberString = amountWithoutTrailingP.padStart(3, "0");
-const pounds = paddedPenceNumberString.substring(
-  0,
-  paddedPenceNumberString.length - 2
-);
+  const paddedPenceNumberString = amountWithoutTrailingP.padStart(3, "0");
+  const pounds = paddedPenceNumberString.substring(
+    0,
+    paddedPenceNumberString.length - 2,
+  );
 
-const pence = paddedPenceNumberString
-  .substring(paddedPenceNumberString.length - 2)
-  .padEnd(2, "0");
+  const pence = paddedPenceNumberString
+    .substring(paddedPenceNumberString.length - 2)
+    .padEnd(2, "0");
 
-  return (`£${pounds}.${pence}`)
+  return `£${pounds}.${pence}`;
 }
 
-
 console.log(toPounds("1250p"));
-
-
diff --git a/Sprint-3/5-stretch-extend/format-time.js b/Sprint-3/5-stretch-extend/format-time.js
index 32a32e66b..f86d01511 100644
--- a/Sprint-3/5-stretch-extend/format-time.js
+++ b/Sprint-3/5-stretch-extend/format-time.js
@@ -14,12 +14,12 @@ const currentOutput = formatAs12HourClock("08:00");
 const targetOutput = "08:00 am";
 console.assert(
   currentOutput === targetOutput,
-  `current output: ${currentOutput}, target output: ${targetOutput}`
+  `current output: ${currentOutput}, target output: ${targetOutput}`,
 );
 
 const currentOutput2 = formatAs12HourClock("23:00");
 const targetOutput2 = "11:00 pm";
 console.assert(
   currentOutput2 === targetOutput2,
-  `current output: ${currentOutput2}, target output: ${targetOutput2}`
+  `current output: ${currentOutput2}, target output: ${targetOutput2}`,
 );

From 9a02929ffc97fc79c3ed302abf6e80abcfaf4e33 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Fri, 25 Sep 2026 22:49:16 +0100
Subject: [PATCH 13/20] Update variable naming

---
 Sprint-3/1-key-errors/0.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-3/1-key-errors/0.js b/Sprint-3/1-key-errors/0.js
index 9c862b436..0c0a8242d 100644
--- a/Sprint-3/1-key-errors/0.js
+++ b/Sprint-3/1-key-errors/0.js
@@ -14,8 +14,8 @@
 // If I give the new variable a different name, I hope it should work :)
 
 function capitalise(str) {
-  let newString = `${str[0].toUpperCase()}${str.slice(1)}`;
-  return newString;
+  let capitalisedString = `${str[0].toUpperCase()}${str.slice(1)}`;
+  return capitalisedString;
 }
 
 console.log(capitalise("frumentius"));

From cf22a5119570fc4c0a4463a10fb7466d39dff6e5 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Fri, 25 Sep 2026 23:03:12 +0100
Subject: [PATCH 14/20] Remove quotes from percentage

---
 Sprint-3/1-key-errors/1.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-3/1-key-errors/1.js b/Sprint-3/1-key-errors/1.js
index cb9c2a3f9..a88da573a 100644
--- a/Sprint-3/1-key-errors/1.js
+++ b/Sprint-3/1-key-errors/1.js
@@ -29,4 +29,4 @@ function convertToPercentage(decimalNumber) {
   return percentage;
 }
 
-console.log(convertToPercentage("26"));
+console.log(convertToPercentage(26));

From d9e2cde20a4781aea75c3332304269bedda07d56 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Fri, 25 Sep 2026 23:09:47 +0100
Subject: [PATCH 15/20] Remove duplicated log

---
 Sprint-3/2-mandatory-debug/0.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-3/2-mandatory-debug/0.js b/Sprint-3/2-mandatory-debug/0.js
index 50956778d..7278cfab1 100644
--- a/Sprint-3/2-mandatory-debug/0.js
+++ b/Sprint-3/2-mandatory-debug/0.js
@@ -18,7 +18,7 @@ console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 //  =============> write your new code here
 
 function multiply(a, b) {
-  console.log(a * b);
+  
   return a * b;
 }
 console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);

From 365fc3aac9b1f0f121f237c57a0d27f85d48a2e7 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Fri, 25 Sep 2026 23:51:16 +0100
Subject: [PATCH 16/20] Clarifing return value types

---
 Sprint-3/4-mandatory-interpret/time-format.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-3/4-mandatory-interpret/time-format.js b/Sprint-3/4-mandatory-interpret/time-format.js
index 4e775e407..a99388fa0 100644
--- a/Sprint-3/4-mandatory-interpret/time-format.js
+++ b/Sprint-3/4-mandatory-interpret/time-format.js
@@ -30,10 +30,10 @@ console.log(formatTimeDisplay(61));
 // 0
 
 // c) What is the return value of pad when it is called for the first time?
-// 00
+// "00"
 
 // d) What is the value assigned to num when pad is called for the last time in this program?  Explain your answer
 // 1
 
 // e) What is the return value of pad when it is called for the last time in this program?  Explain your answer
-// 01
+// "01"

From 0c6b70470f5c4fe1144b53fd8fc81aec7f9a6468 Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Mon, 28 Sep 2026 16:03:49 +0100
Subject: [PATCH 17/20] Update to uppersnamecase

---
 Sprint-3/3-mandatory-implement/2-cases.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-3/3-mandatory-implement/2-cases.js b/Sprint-3/3-mandatory-implement/2-cases.js
index 738bdf228..605ce8295 100644
--- a/Sprint-3/3-mandatory-implement/2-cases.js
+++ b/Sprint-3/3-mandatory-implement/2-cases.js
@@ -15,8 +15,8 @@
 // Use the MDN string documentation to help you find a solution
 // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
 
-function toUpper(input) {
+function toUpperSnakeCase(input) {
   return input.replaceAll(" ", "_").toUpperCase();
 }
 
-console.log(toUpper("alpha and omega"));
+console.log(toUpperSnakeCase("alpha and omega"));

From da302ee21812db5e3ca10522a7cdd3b1ceedf4ec Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Mon, 28 Sep 2026 16:14:30 +0100
Subject: [PATCH 18/20] Update Convert decimal to percentage

---
 Sprint-3/1-key-errors/1.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-3/1-key-errors/1.js b/Sprint-3/1-key-errors/1.js
index a88da573a..af93577c1 100644
--- a/Sprint-3/1-key-errors/1.js
+++ b/Sprint-3/1-key-errors/1.js
@@ -29,4 +29,4 @@ function convertToPercentage(decimalNumber) {
   return percentage;
 }
 
-console.log(convertToPercentage(26));
+console.log(convertToPercentage(0.7));

From bc5bd0e35836ede601991011372cea6256dcc6fe Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Mon, 28 Sep 2026 16:18:46 +0100
Subject: [PATCH 19/20] Update add comments

---
 Sprint-3/2-mandatory-debug/0.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-3/2-mandatory-debug/0.js b/Sprint-3/2-mandatory-debug/0.js
index 7278cfab1..e2679cf2e 100644
--- a/Sprint-3/2-mandatory-debug/0.js
+++ b/Sprint-3/2-mandatory-debug/0.js
@@ -3,11 +3,11 @@
 // =============> write your prediction here
 // I believe the function will calculate 10 x 32
 
-function multiply(a, b) {
+/* function multiply(a, b) {
   console.log(a * b);
 }
 
-console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
+console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`); */
 
 // =============> write your explanation here
 

From 9723adba9e42ad149a267ed821c6499a04345c9d Mon Sep 17 00:00:00 2001
From: Frumentius-Rev <tesfaybh@gmail.com>
Date: Mon, 28 Sep 2026 16:23:49 +0100
Subject: [PATCH 20/20] Remove unused const num

---
 Sprint-3/2-mandatory-debug/2.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-3/2-mandatory-debug/2.js b/Sprint-3/2-mandatory-debug/2.js
index 6eed48426..b10031f3a 100644
--- a/Sprint-3/2-mandatory-debug/2.js
+++ b/Sprint-3/2-mandatory-debug/2.js
@@ -25,7 +25,7 @@ console.log(`The last digit of 806 is ${getLastDigit(806)}`); */
 // Finally, correct the code to fix the problem
 // =============> write your new code here
 
-const num = 103;
+
 
 function getLastDigit(num) {
   return num.toString().slice(-1);