From b5736342709dd5765223ee4135d51e5bed988bc8 Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Sat, 28 Feb 2026 10:09:00 +0000
Subject: [PATCH 01/11] Fix variable declaration error in capitalise function

---
 Sprint-2/1-key-errors/0.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 653d6f5a0..239991766 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -1,5 +1,6 @@
 // Predict and explain first...
 //  =============> write your prediction here
+// I predict there will be a syntax error but not sure what the error is yet. I think it has something to do with the variable declaration of str.
 
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
@@ -9,5 +10,15 @@ function capitalise(str) {
   return str;
 }
 
+console.log(capitalise("hello world"));
 // =============> write your explanation here
+// it showed SyntaxError: Identifier 'str' has already been declared, this is because we have declared the variable str twice,
+//  once as a parameter and once as a variable inside the function. To fix this error, we can either change the name of the
+//  variable inside the function to something else like newStr.
 // =============> write your new code here
+function capitalise(str) {
+  let newStr = `${str[0].toUpperCase()}${str.slice(1)}`;
+  return newStr;
+}
+
+console.log(capitalise("hello world"));
\ No newline at end of file

From 598232d7ecdf1c13d6b417b2285a6eda9342a093 Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Sat, 28 Feb 2026 12:20:56 +0000
Subject: [PATCH 02/11] convertToPercentage function

---
 Sprint-2/1-key-errors/1.js | 27 +++++++++++++++++++++------
 1 file changed, 21 insertions(+), 6 deletions(-)

diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index f2d56151f..75b3f4582 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -2,19 +2,34 @@
 
 // Why will an error occur when this program runs?
 // =============> write your prediction here
+// I predict that the decimalNumber variable will be timed 100 and will get a percentage value of 50%, but that only my predictions.
 
 // Try playing computer with the example to work out what is going on
 
-function convertToPercentage(decimalNumber) {
-  const decimalNumber = 0.5;
-  const percentage = `${decimalNumber * 100}%`;
+// function convertToPercentage(decimalNumber) {
+//   // const decimalNumber = 0.5;
+//   const percentage = `${decimalNumber * 100}%`;
 
-  return percentage;
-}
+//   return percentage;
+// }
 
-console.log(decimalNumber);
+// console.log(decimalNumber);
 
 // =============> write your explanation here
+// SyntaxError: Identifier 'decimalNumber' has already been declared
+// This error occurs because we have declared the variable decimalNumber twice, 
+// once as a parameter and once as a variable inside the function.
+
+// apparently there is another error that we only console logged the variable decimalNumber which is not declared in the global scope,
+//  to fix this we instead call the function convertToPercentage with a decimal number as an argument and log the result of that function call to the console.
 
 // 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(0.5));

From e3b695c6b6c2e87f530f4b25cacab964f740a243 Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Sat, 28 Feb 2026 12:33:55 +0000
Subject: [PATCH 03/11] Fix function definition to use a parameter instead of a
 direct input

---
 Sprint-2/1-key-errors/2.js | 24 +++++++++++++++++++++---
 1 file changed, 21 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index aad57f7cf..41f4e771a 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -4,17 +4,35 @@
 // this function should square any number but instead we're going to get an error
 
 // =============> write your prediction of the error here
+// I think this is an obvious one because when defining a function you cant give a direct input like 3,
+//  instead you have to give a variable name as a parameter and then use that variable name in the function
+//  body to perform the calculation. So I predict that there will be a syntax error because of the way 
+// the function is defined with a direct input of 3 instead of a variable name.
+
+// function square(3) {
+//     return num * num;
+// }
+
 
-function square(3) {
-    return num * num;
-}
 
 // =============> write the error message here
+// /Users/me/CYF/Module-Structuring-and-Testing-Data/Sprint-2/1-key-errors/2.js:12
+// function square(3) {
+//                 ^
+
+// SyntaxError: Unexpected number
 
 // =============> explain this error message here
+// This error message is saying that there is an unexpected number in the function definition, which is the number 3.
 
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
+function square(num) {
+    return num * num;
+}
+
+console.log(square(3));
+
 

From 471439c560380f2fc714df307a8bc8f78e6eecde Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Sat, 28 Feb 2026 13:55:21 +0000
Subject: [PATCH 04/11] Fix function implementations to return correct values
 in multiply, sum, and getLastDigit functions

---
 Sprint-2/2-mandatory-debug/0.js | 18 ++++++++++++----
 Sprint-2/2-mandatory-debug/1.js | 22 +++++++++++++++-----
 Sprint-2/2-mandatory-debug/2.js | 37 +++++++++++++++++++++++++--------
 3 files changed, 59 insertions(+), 18 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js
index b27511b41..793e948b7 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -1,14 +1,24 @@
 // Predict and explain first...
 
 // =============> write your prediction here
+// I predict that there will be error because the function will not return anything 
+// and when we try to log the result of the function call to the console, it will return undefined.
 
-function multiply(a, b) {
-  console.log(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
+// The function multiply logs in the result of a * b to the console but does not return anything, 
+// so when we try to log the result of the function call to the console, it will return undefined.
 
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+
+function multiply(a, b) {
+  return a * b;
+}
+
+console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
diff --git a/Sprint-2/2-mandatory-debug/1.js b/Sprint-2/2-mandatory-debug/1.js
index 37cedfbcf..a434a6165 100644
--- a/Sprint-2/2-mandatory-debug/1.js
+++ b/Sprint-2/2-mandatory-debug/1.js
@@ -1,13 +1,25 @@
 // Predict and explain first...
 //  =============> write your prediction here
+// I predict there will be a syntax error but not sure what the error is yet. 
+// I think it has something to do with return as it return nothing , so the function was'nt well defined.
 
-function sum(a, b) {
-  return;
-  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 function sum is not returning the result of a + b, instead it is returning undefined 
+// because the return statement is on a separate line and does not include the expression 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)}`);
+
diff --git a/Sprint-2/2-mandatory-debug/2.js b/Sprint-2/2-mandatory-debug/2.js
index 57d3f5dc3..73ea0d64c 100644
--- a/Sprint-2/2-mandatory-debug/2.js
+++ b/Sprint-2/2-mandatory-debug/2.js
@@ -2,23 +2,42 @@
 
 // Predict the output of the following code:
 // =============> Write your prediction here
+// II predict that the output will be "The last digit of 42 is 3", "The last digit of 105 is 3", 
+// and "The last digit of 806 is 3" because the function getLastDigit is using the variable num
+//  which is assigned the value of 103 using const in global scope, 
+// so it will always return the last digit of 103 which is 3.
 
-const num = 103;
+// const num = 103;
 
-function getLastDigit() {
-  return num.toString().slice(-1);
-}
+// function getLastDigit() {
+//   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)}`);
+// 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)}`);
 
 // Now run the code and compare the output to your prediction
 // =============> write the output here
+// The last digit of 42 is 3
+// The last digit of 105 is 3
+// The last digit of 806 is 3
+// it's similar to what I predicted.
+
 // Explain why the output is the way it is
 // =============> write your explanation here
+// The output is the way it is because the function getLastDigit is using the variable num which is assigned 
+// the value of 103 using const in global scope, and the function definition didn't have an argument to receive the number.
+
 // Finally, correct the code to fix the problem
 // =============> write your new code here
 
-// This program should tell the user the last digit of each number.
-// Explain why getLastDigit is not working properly - correct the problem
+
+function getLastDigit() {
+  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)}`);
+

From 14672ec18578b00e2e49bd0d1c3300492db7f107 Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Sat, 28 Feb 2026 14:17:55 +0000
Subject: [PATCH 05/11] Implement BMI calculation in calculateBMI function

---
 Sprint-2/3-mandatory-implement/1-bmi.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js
index 17b1cbde1..4abc0957e 100644
--- a/Sprint-2/3-mandatory-implement/1-bmi.js
+++ b/Sprint-2/3-mandatory-implement/1-bmi.js
@@ -16,4 +16,10 @@
 
 function calculateBMI(weight, height) {
     // return the BMI of someone based off their weight and height
-}
\ No newline at end of file
+
+    const bmi = weight / (height * height);
+    return Math.round(bmi * 10) / 10;
+}
+
+// Example:
+console.log(calculateBMI(70, 1.73)); 
\ No newline at end of file

From 6f0c4c813705543fb0ef136a94878fecb8d59f48 Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Mon, 2 Mar 2026 03:19:51 +0000
Subject: [PATCH 06/11] Implement toUpperSnakeCase function to convert strings
 to UPPER_SNAKE_CASE

---
 Sprint-2/3-mandatory-implement/2-cases.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js
index 5b0ef77ad..ac62c458a 100644
--- a/Sprint-2/3-mandatory-implement/2-cases.js
+++ b/Sprint-2/3-mandatory-implement/2-cases.js
@@ -14,3 +14,12 @@
 // 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 toUpperSnakeCase(str) {
+    // return the string in UPPER_SNAKE_CASE
+    
+return str.replaceAll(" ", "_").toUpperCase();
+// I used replaceAll to replace all spaces with underscores and then used toUpperCase to convert the string to uppercase.
+}
+
+console.log(toUpperSnakeCase("hello there"));
\ No newline at end of file

From 4896b8fdf01bce21991177591e24e07c3250bd86 Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Mon, 2 Mar 2026 03:58:09 +0000
Subject: [PATCH 07/11] Add defensive programming to toPounds function for
 input validation

---
 Sprint-2/3-mandatory-implement/3-to-pounds.js | 37 +++++++++++++++++++
 1 file changed, 37 insertions(+)

diff --git a/Sprint-2/3-mandatory-implement/3-to-pounds.js b/Sprint-2/3-mandatory-implement/3-to-pounds.js
index 6265a1a70..e7178b745 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -4,3 +4,40 @@
 // 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(penceString) {
+    // return the price in pounds
+
+    // I took the code and made it as a function called toPounds with a parameter called penceString,
+    // but after reviewing the code in Ai I noticed i have to add something called defensive programming,
+    // to make sure the input is following the format of a string with a number followed by the letter p,
+    //  so I will add an if statement to check if the input is valid and if not, using endWith() method and then return an error message.
+
+    
+    if (!penceString.endsWith("p")) {
+    return "Error: Please enter a valid pence format (e.g., '399p')";
+}
+
+    const penceStringWithoutTrailingP = penceString.substring(
+  0,
+  penceString.length - 1
+);
+
+const paddedPenceNumberString = penceStringWithoutTrailingP.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("399p"));
+console.log(toPounds("5p"));
+console.log(toPounds("abc"));
+

From 7d5122257de0563685ed4d7af123bc12f8d4f6eb Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Mon, 2 Mar 2026 04:21:59 +0000
Subject: [PATCH 08/11] Add console log and comments to clarify pad function
 usage in formatTimeDisplay

---
 Sprint-2/4-mandatory-interpret/time-format.js | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index 7c98eb0e8..2b65ca1bc 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -11,6 +11,8 @@ 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
 
@@ -18,17 +20,24 @@ function formatTimeDisplay(seconds) {
 
 // a) When formatTimeDisplay is called how many times will pad be called?
 // =============> write your answer here
+// pad will be called 3 times, once for totalHours, once for remainingMinutes and once for remainingSeconds.
 
 // 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
+// The value assigned to num when pad is called for the first time is 0 (totalHours).
 
 // c) What is the return value of pad is called for the first time?
 // =============> write your answer here
+// The return value of pad when it is called for the first time is "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
+// The value assigned to num when pad is called for the last time in this program is 1 (remainingSeconds).
+// This is because when we call formatTimeDisplay(61), the remainingSeconds is calculated as 61 % 60 which gives us 1
 
 // e) What is the return value assigned to num when pad is called for the last time in this program?  Explain your answer
 // =============> write your answer here
+// The return value assigned to num when pad is called for the last time in this program is "01".
+// This is because pad(1) returns "01" since 1 is padded to 2 digits with leading zeros.
\ No newline at end of file

From b50757266a4e09a3cd9947fa057deced8cd6bef0 Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Fri, 6 Mar 2026 21:10:23 +0000
Subject: [PATCH 09/11] Refactor formatAs12HourClock function to correctly
 convert 24-hour time to 12-hour format with proper padding and period
 indication

---
 Sprint-2/5-stretch-extend/format-time.js | 42 +++++++++++++++++++++---
 1 file changed, 38 insertions(+), 4 deletions(-)

diff --git a/Sprint-2/5-stretch-extend/format-time.js b/Sprint-2/5-stretch-extend/format-time.js
index 32a32e66b..91e01361c 100644
--- a/Sprint-2/5-stretch-extend/format-time.js
+++ b/Sprint-2/5-stretch-extend/format-time.js
@@ -3,11 +3,24 @@
 // Your task is to write tests for as many different groups of input data or edge cases as you can, and fix any bugs you find.
 
 function formatAs12HourClock(time) {
-  const hours = Number(time.slice(0, 2));
-  if (hours > 12) {
-    return `${hours - 12}:00 pm`;
+  let hours = Number(time.slice(0, 2)); // if its const it will throe an TypeError you cant assign a const variable later on
+  const minutes = time.slice(3, 5);
+
+
+  // for am and pm periods
+  const period = hours >= 12 ? "pm" : "am"; // if hours is greater than or equal to 12, it's pm, otherwise it's am
+
+  // to convert hours from 24-hour format to 12-hour format
+  if (hours === 0) {
+    hours = 12; // if hours is 0, it should be 12 in 12-hour format
+  } else if (hours > 12) {
+    hours = hours - 12;
   }
-  return `${time} am`;
+
+  // for format hours to always be 2 digits
+  const padHours = hours.toString().padStart(2, "0");
+
+  return `${padHours}:${minutes} ${period}`;   
 }
 
 const currentOutput = formatAs12HourClock("08:00");
@@ -23,3 +36,24 @@ console.assert(
   currentOutput2 === targetOutput2,
   `current output: ${currentOutput2}, target output: ${targetOutput2}`
 );
+
+const currentOutput3 = formatAs12HourClock("12:00");
+const targetOutput3 = "12:00 pm";
+console.assert(
+  currentOutput3 === targetOutput3,
+  `current output: ${currentOutput3}, target output: ${targetOutput3}`
+);
+
+const currentOutput4 = formatAs12HourClock("00:00");
+const targetOutput4 = "12:00 am";
+console.assert(
+  currentOutput4 === targetOutput4,
+  `current output: ${currentOutput4}, target output: ${targetOutput4}`
+);    
+
+const currentOutput5 = formatAs12HourClock("13:20");
+const targetOutput5 = "01:20 pm";
+console.assert(
+  currentOutput5 === targetOutput5,
+  `current output: ${currentOutput5}, target output: ${targetOutput5}`
+);
\ No newline at end of file

From ae5326c6485e0720037abfee18bbb97d89b8fdd4 Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Sat, 7 Mar 2026 23:41:48 +0000
Subject: [PATCH 10/11] Fix: Passed num as a parameter inside getLastDigit

---
 Sprint-2/2-mandatory-debug/2.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/2.js b/Sprint-2/2-mandatory-debug/2.js
index 73ea0d64c..298d1a5ec 100644
--- a/Sprint-2/2-mandatory-debug/2.js
+++ b/Sprint-2/2-mandatory-debug/2.js
@@ -2,9 +2,9 @@
 
 // Predict the output of the following code:
 // =============> Write your prediction here
-// II predict that the output will be "The last digit of 42 is 3", "The last digit of 105 is 3", 
+// II predict that the output will be "The last digit of 42 is 3", "The last digit of 105 is 3",
 // and "The last digit of 806 is 3" because the function getLastDigit is using the variable num
-//  which is assigned the value of 103 using const in global scope, 
+//  which is assigned the value of 103 using const in global scope,
 // so it will always return the last digit of 103 which is 3.
 
 // const num = 103;
@@ -26,18 +26,18 @@
 
 // Explain why the output is the way it is
 // =============> write your explanation here
-// The output is the way it is because the function getLastDigit is using the variable num which is assigned 
+// The output is the way it is because the function getLastDigit is using the variable num which is assigned
 // the value of 103 using const in global scope, and the function definition didn't have an argument to receive the number.
 
 // Finally, correct the code to fix the problem
 // =============> write your new code here
 
+const num = 103;
 
-function getLastDigit() {
+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)}`);
-

From db6a842eabc7461c8947655f96f4f87691abf4c6 Mon Sep 17 00:00:00 2001
From: Darkidd77 <m.almahdi77@yahoo.com>
Date: Sat, 7 Mar 2026 23:49:12 +0000
Subject: [PATCH 11/11] Fix: Remove unnecessary blank lines and ensure
 consistent formatting in multiple files

---
 Sprint-2/1-key-errors/0.js                    |  2 +-
 Sprint-2/1-key-errors/1.js                    |  2 +-
 Sprint-2/1-key-errors/2.js                    |  9 +---
 Sprint-2/2-mandatory-debug/0.js               |  4 +-
 Sprint-2/2-mandatory-debug/1.js               |  5 +--
 Sprint-2/3-mandatory-implement/1-bmi.js       |  8 ++--
 Sprint-2/3-mandatory-implement/2-cases.js     | 10 ++---
 Sprint-2/3-mandatory-implement/3-to-pounds.js | 42 +++++++++----------
 Sprint-2/4-mandatory-interpret/time-format.js |  4 +-
 9 files changed, 39 insertions(+), 47 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 239991766..9ade2ee55 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -21,4 +21,4 @@ function capitalise(str) {
   return newStr;
 }
 
-console.log(capitalise("hello world"));
\ No newline at end of file
+console.log(capitalise("hello world"));
diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index 75b3f4582..03023b616 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -17,7 +17,7 @@
 
 // =============> write your explanation here
 // SyntaxError: Identifier 'decimalNumber' has already been declared
-// This error occurs because we have declared the variable decimalNumber twice, 
+// This error occurs because we have declared the variable decimalNumber twice,
 // once as a parameter and once as a variable inside the function.
 
 // apparently there is another error that we only console logged the variable decimalNumber which is not declared in the global scope,
diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index 41f4e771a..2580ddfb8 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -1,4 +1,3 @@
-
 // Predict and explain first BEFORE you run any code...
 
 // this function should square any number but instead we're going to get an error
@@ -6,15 +5,13 @@
 // =============> write your prediction of the error here
 // I think this is an obvious one because when defining a function you cant give a direct input like 3,
 //  instead you have to give a variable name as a parameter and then use that variable name in the function
-//  body to perform the calculation. So I predict that there will be a syntax error because of the way 
+//  body to perform the calculation. So I predict that there will be a syntax error because of the way
 // the function is defined with a direct input of 3 instead of a variable name.
 
 // function square(3) {
 //     return num * num;
 // }
 
-
-
 // =============> write the error message here
 // /Users/me/CYF/Module-Structuring-and-Testing-Data/Sprint-2/1-key-errors/2.js:12
 // function square(3) {
@@ -30,9 +27,7 @@
 // =============> write your new code here
 
 function square(num) {
-    return num * num;
+  return num * num;
 }
 
 console.log(square(3));
-
-
diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js
index 793e948b7..5bc868ad5 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -1,7 +1,7 @@
 // Predict and explain first...
 
 // =============> write your prediction here
-// I predict that there will be error because the function will not return anything 
+// I predict that there will be error because the function will not return anything
 // and when we try to log the result of the function call to the console, it will return undefined.
 
 // function multiply(a, b) {
@@ -11,7 +11,7 @@
 // console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
 // =============> write your explanation here
-// The function multiply logs in the result of a * b to the console but does not return anything, 
+// The function multiply logs in the result of a * b to the console but does not return anything,
 // so when we try to log the result of the function call to the console, it will return undefined.
 
 // Finally, correct the code to fix the problem
diff --git a/Sprint-2/2-mandatory-debug/1.js b/Sprint-2/2-mandatory-debug/1.js
index a434a6165..c1e553e09 100644
--- a/Sprint-2/2-mandatory-debug/1.js
+++ b/Sprint-2/2-mandatory-debug/1.js
@@ -1,6 +1,6 @@
 // Predict and explain first...
 //  =============> write your prediction here
-// I predict there will be a syntax error but not sure what the error is yet. 
+// I predict there will be a syntax error but not sure what the error is yet.
 // I think it has something to do with return as it return nothing , so the function was'nt well defined.
 
 // function sum(a, b) {
@@ -11,7 +11,7 @@
 // console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
 // =============> write your explanation here
-// The function sum is not returning the result of a + b, instead it is returning undefined 
+// The function sum is not returning the result of a + b, instead it is returning undefined
 // because the return statement is on a separate line and does not include the expression a + b.
 
 // Finally, correct the code to fix the problem
@@ -22,4 +22,3 @@ function sum(a, b) {
 }
 
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
-
diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js
index 4abc0957e..7f40aa735 100644
--- a/Sprint-2/3-mandatory-implement/1-bmi.js
+++ b/Sprint-2/3-mandatory-implement/1-bmi.js
@@ -15,11 +15,11 @@
 // It should return their Body Mass Index to 1 decimal place
 
 function calculateBMI(weight, height) {
-    // return the BMI of someone based off their weight and height
+  // return the BMI of someone based off their weight and height
 
-    const bmi = weight / (height * height);
-    return Math.round(bmi * 10) / 10;
+  const bmi = weight / (height * height);
+  return Math.round(bmi * 10) / 10;
 }
 
 // Example:
-console.log(calculateBMI(70, 1.73)); 
\ No newline at end of file
+console.log(calculateBMI(70, 1.73));
diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js
index ac62c458a..9d857dfd3 100644
--- a/Sprint-2/3-mandatory-implement/2-cases.js
+++ b/Sprint-2/3-mandatory-implement/2-cases.js
@@ -16,10 +16,10 @@
 // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
 
 function toUpperSnakeCase(str) {
-    // return the string in UPPER_SNAKE_CASE
-    
-return str.replaceAll(" ", "_").toUpperCase();
-// I used replaceAll to replace all spaces with underscores and then used toUpperCase to convert the string to uppercase.
+  // return the string in UPPER_SNAKE_CASE
+
+  return str.replaceAll(" ", "_").toUpperCase();
+  // I used replaceAll to replace all spaces with underscores and then used toUpperCase to convert the string to uppercase.
 }
 
-console.log(toUpperSnakeCase("hello there"));
\ No newline at end of file
+console.log(toUpperSnakeCase("hello there"));
diff --git a/Sprint-2/3-mandatory-implement/3-to-pounds.js b/Sprint-2/3-mandatory-implement/3-to-pounds.js
index e7178b745..efbe07b13 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -6,38 +6,36 @@
 // You should call this function a number of times to check it works for different inputs
 
 function toPounds(penceString) {
-    // return the price in pounds
+  // return the price in pounds
 
-    // I took the code and made it as a function called toPounds with a parameter called penceString,
-    // but after reviewing the code in Ai I noticed i have to add something called defensive programming,
-    // to make sure the input is following the format of a string with a number followed by the letter p,
-    //  so I will add an if statement to check if the input is valid and if not, using endWith() method and then return an error message.
+  // I took the code and made it as a function called toPounds with a parameter called penceString,
+  // but after reviewing the code in Ai I noticed i have to add something called defensive programming,
+  // to make sure the input is following the format of a string with a number followed by the letter p,
+  //  so I will add an if statement to check if the input is valid and if not, using endWith() method and then return an error message.
 
-    
-    if (!penceString.endsWith("p")) {
+  if (!penceString.endsWith("p")) {
     return "Error: Please enter a valid pence format (e.g., '399p')";
-}
+  }
 
-    const penceStringWithoutTrailingP = penceString.substring(
-  0,
-  penceString.length - 1
-);
+  const penceStringWithoutTrailingP = penceString.substring(
+    0,
+    penceString.length - 1
+  );
 
-const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+  const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
 
-const pounds = paddedPenceNumberString.substring(
-  0,
-  paddedPenceNumberString.length - 2
-);
+  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("399p"));
 console.log(toPounds("5p"));
 console.log(toPounds("abc"));
-
diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index 2b65ca1bc..f26ab2503 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -30,7 +30,7 @@ console.log(formatTimeDisplay(61));
 
 // c) What is the return value of pad is called for the first time?
 // =============> write your answer here
-// The return value of pad when it is called for the first time is "00" 
+// The return value of pad when it is called for the first time is "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
@@ -40,4 +40,4 @@ console.log(formatTimeDisplay(61));
 // e) What is the return value assigned to num when pad is called for the last time in this program?  Explain your answer
 // =============> write your answer here
 // The return value assigned to num when pad is called for the last time in this program is "01".
-// This is because pad(1) returns "01" since 1 is padded to 2 digits with leading zeros.
\ No newline at end of file
+// This is because pad(1) returns "01" since 1 is padded to 2 digits with leading zeros.