From e1af344e710f662ce0b211390ec697d86ac981cb Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 21 Oct 2025 13:32:38 +0100
Subject: [PATCH 01/12] Completed 0.js exercise

---
 Sprint-2/1-key-errors/0.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 653d6f5a0..14657ef5f 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -1,6 +1,10 @@
 // Predict and explain first...
 //  =============> write your prediction here
 
+// I predict that the function will capitalise the first character of the string
+// And then return a string using string interpolation using the first character of the string
+// and a slice of the remaining characters of the string excluding the first character.
+
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
 
@@ -10,4 +14,13 @@ function capitalise(str) {
 }
 
 // =============> write your explanation here
+
+// An error is thrown because of the variable name collision. The function has a parameter called `str`
+// but in the body of the function, a variable `str` is declared and that conflicts with the parameter.
+
 // =============> write your new code here
+
+function upperCased(string) {
+  const capitalised = `${string[0].toUpperCase()}${string.slice(1)}`;
+  return capitalised;
+}
\ No newline at end of file

From 1028541bd4f7dc41e446c4b5ed85a09e55981e6e Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 21 Oct 2025 13:39:02 +0100
Subject: [PATCH 02/12] Completed 1.js exercise

---
 Sprint-2/1-key-errors/1.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index f2d56151f..5884be2e7 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -3,6 +3,9 @@
 // Why will an error occur when this program runs?
 // =============> write your prediction here
 
+// Because of the variable name collision. The function parameter is called decimalNumber
+// but another decimalNumber is declared inside the body of the function.
+
 // Try playing computer with the example to work out what is going on
 
 function convertToPercentage(decimalNumber) {
@@ -16,5 +19,14 @@ console.log(decimalNumber);
 
 // =============> write your explanation here
 
+// The console prints: SyntaxError: Identifier 'decimalNumber' has already been declared
+
 // Finally, correct the code to fix the problem
 // =============> write your new code here
+
+function percentaged(decimalNumber) {
+  const constant = 0.5;
+  const percentage = `${constant * 100}%`;
+
+  return percentage;
+}
\ No newline at end of file

From f342a4cbb909efbfa0d7889e1d7adfd121c82abf Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 21 Oct 2025 13:43:57 +0100
Subject: [PATCH 03/12] Completed 2.js exercise

---
 Sprint-2/1-key-errors/2.js | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index aad57f7cf..46078e1af 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -5,16 +5,26 @@
 
 // =============> write your prediction of the error here
 
+// The function will not execute because of the undefined variable `num` and the parameter `3`,
+// which is not allowed to be defined with just numbers. There must be letters to define a variable
+// but can begins with numbers.
+
 function square(3) {
     return num * num;
 }
 
 // =============> write the error message here
 
+// SyntaxError: Unexpected number
+
 // =============> explain this error message here
 
+// It's referring to the function parameter `3`
+
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
-
+function squared(value) {
+    return value * value;
+}
\ No newline at end of file

From 01dccfc4206ec7505ee68860eb6e7deecaf9e5a5 Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 21 Oct 2025 13:53:29 +0100
Subject: [PATCH 04/12] Completed 0.js exercise

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

diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js
index b27511b41..52c2de4f9 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -2,6 +2,8 @@
 
 // =============> write your prediction here
 
+// The function prints to the console by multiplying the parameter `a` and `b`
+
 function multiply(a, b) {
   console.log(a * b);
 }
@@ -10,5 +12,14 @@ console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
 // =============> write your explanation here
 
+// I missed line 11, the function does indeed prints to the console but returns nothing
+// which explains `undefined` in the string interpolation of the function
+
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+
+function product(a, b) {
+  const result = a * b;
+  console.log(result)
+  return result;
+}
\ No newline at end of file

From 4bf33763cae2da0d60b6c8cf1e8e63ff96dd5ccc Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 21 Oct 2025 14:00:23 +0100
Subject: [PATCH 05/12] Completed 1.js exercise

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

diff --git a/Sprint-2/2-mandatory-debug/1.js b/Sprint-2/2-mandatory-debug/1.js
index 37cedfbcf..16cb07d0b 100644
--- a/Sprint-2/2-mandatory-debug/1.js
+++ b/Sprint-2/2-mandatory-debug/1.js
@@ -1,6 +1,8 @@
 // Predict and explain first...
 //  =============> write your prediction here
 
+// It will not say `undefined` but will not add parameter `a` and `b`
+
 function sum(a, b) {
   return;
   a + b;
@@ -9,5 +11,12 @@ function sum(a, b) {
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
 // =============> write your explanation here
+
+// The console prints: The sum of 10 and 32 is undefined
+
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+
+function add(a, b) {
+  return a + b;
+}
\ No newline at end of file

From c929c3c64eb01ca3bb073a24f75e2a7cbc67ad6c Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 21 Oct 2025 14:05:20 +0100
Subject: [PATCH 06/12] Completed 2.js exercise

---
 Sprint-2/2-mandatory-debug/2.js | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/2.js b/Sprint-2/2-mandatory-debug/2.js
index 57d3f5dc3..6b1bc64a8 100644
--- a/Sprint-2/2-mandatory-debug/2.js
+++ b/Sprint-2/2-mandatory-debug/2.js
@@ -3,10 +3,12 @@
 // Predict the output of the following code:
 // =============> Write your prediction here
 
+// It will convert 103 number into a String representation and then will either do no manipulations or invert the string
+
 const num = 103;
 
-function getLastDigit() {
-  return num.toString().slice(-1);
+function getLastDigit(digit) {
+  return digit.toString().slice(-1);
 }
 
 console.log(`The last digit of 42 is ${getLastDigit(42)}`);
@@ -22,3 +24,7 @@ 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
+
+// The function getLastDigit() has no parameters and referenced a globally scoped constant `num`.
+// In order for it to `work properly`, a parameter is required and referencing it in order to
+// return an expected value
\ No newline at end of file

From eae3b79f2820e6d851534fbd1e12480065a53fb9 Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 21 Oct 2025 14:15:17 +0100
Subject: [PATCH 07/12] Completed 1-bmi.js exercise

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

diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js
index 17b1cbde1..573a6a703 100644
--- a/Sprint-2/3-mandatory-implement/1-bmi.js
+++ b/Sprint-2/3-mandatory-implement/1-bmi.js
@@ -16,4 +16,6 @@
 
 function calculateBMI(weight, height) {
     // return the BMI of someone based off their weight and height
+    const result =  weight / Math.pow(height, 2);
+    return result.toFixed(1);
 }
\ No newline at end of file

From f6354f06f936cccbf6b8091e0f05a763a309262e Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 21 Oct 2025 14:36:46 +0100
Subject: [PATCH 08/12] Completed 2-cases.js exercise

---
 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..dfa0b6ba6 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(string) {
+    let result = `${string}`
+    .split(" ")
+    .map(word => word.toUpperCase())
+    .reduce((accumulator, currentValue) => accumulator + "_" + currentValue);
+
+    return result;
+}
\ No newline at end of file

From 38d97c28cc6e574d8ed664cffb0e196fb63a9428 Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 21 Oct 2025 14:52:30 +0100
Subject: [PATCH 09/12] Completed 3-to-pounds.js exercise

---
 Sprint-2/3-mandatory-implement/3-to-pounds.js | 20 +++++++++++++++++++
 1 file changed, 20 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..4e4847d90 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -4,3 +4,23 @@
 // 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) {
+  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}`;
+}

From 543ba9d73269659e1ed565f9bc5f3704d74b7cf4 Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 21 Oct 2025 15:06:28 +0100
Subject: [PATCH 10/12] Completed time-format.js exercise

---
 Sprint-2/4-mandatory-interpret/time-format.js | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index 7c98eb0e8..800f5d600 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -11,6 +11,9 @@ function formatTimeDisplay(seconds) {
   return `${pad(totalHours)}:${pad(remainingMinutes)}:${pad(remainingSeconds)}`;
 }
 
+const number = 61;
+console.log(formatTimeDisplay(number));
+
 // 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
 
@@ -19,16 +22,26 @@ function formatTimeDisplay(seconds) {
 // a) When formatTimeDisplay is called how many times will pad be called?
 // =============> write your answer here
 
+// 3 times
+
 // 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
 
+// 0
+
 // c) What is the return value of pad 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 assigned to num when pad is called for the last time in this program?  Explain your answer
 // =============> write your answer here
+
+// 01

From 75172a0acaebbfe9c8fe9a7c5417114a31502f85 Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Wed, 22 Oct 2025 15:21:45 +0100
Subject: [PATCH 11/12] Completed format-time.js exercise

---
 Sprint-2/5-stretch-extend/format-time.js | 43 +++++++++++++++++++++---
 1 file changed, 39 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..9221df616 100644
--- a/Sprint-2/5-stretch-extend/format-time.js
+++ b/Sprint-2/5-stretch-extend/format-time.js
@@ -3,11 +3,18 @@
 // 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 `${hours - 12}:00 pm`;
+  let hours = Number(time.slice(0, 2));
+  const minutes = time.slice(3, 5);
+
+  if (hours === 24) {
+    hours = 0;
   }
-  return `${time} am`;
+
+  const period = hours < 12 ? "am" : "pm";
+  hours = hours % 12 || 12;
+  const paddedHours = String(hours).padStart(2, "0");
+
+  return `${paddedHours}:${minutes} ${period}`;
 }
 
 const currentOutput = formatAs12HourClock("08:00");
@@ -23,3 +30,31 @@ console.assert(
   currentOutput2 === targetOutput2,
   `current output: ${currentOutput2}, target output: ${targetOutput2}`
 );
+
+const currentOutput3 = formatAs12HourClock("00:00");
+const targetOutput3 = "12:00 am";
+console.assert(
+  currentOutput3 === targetOutput3,
+  `current output: ${currentOutput3}, target output: ${targetOutput3}`
+);
+
+const currentOutput4 = formatAs12HourClock("24:00");
+const targetOutput4 = "12:00 am";
+console.assert(
+  currentOutput4 === targetOutput4,
+  `current output: ${currentOutput4}, target output: ${targetOutput4}`
+);
+
+const currentOutput5 = formatAs12HourClock("12:00");
+const targetOutput5 = "12:00 pm";
+console.assert(
+  currentOutput5 === targetOutput5,
+  `current output: ${currentOutput5}, target output: ${targetOutput5}`
+);
+
+const currentOutput6 = formatAs12HourClock("09:41");
+const targetOutput6 = "09:41 am";
+console.assert(
+  currentOutput6 === targetOutput6,
+  `current output: ${currentOutput6}, target output: ${targetOutput6}`
+);

From 851893ccadebe5a13d6cfa749e8102ec9c6f3a74 Mon Sep 17 00:00:00 2001
From: Ammad <anosidium@hotmail.com>
Date: Tue, 28 Oct 2025 19:32:43 +0000
Subject: [PATCH 12/12] Address the issues from the pull request comments

---
 Sprint-2/1-key-errors/1.js                    | 7 ++-----
 Sprint-2/2-mandatory-debug/0.js               | 6 ++----
 Sprint-2/3-mandatory-implement/1-bmi.js       | 9 +++++----
 Sprint-2/3-mandatory-implement/2-cases.js     | 9 ++-------
 Sprint-2/4-mandatory-interpret/time-format.js | 8 ++++----
 Sprint-2/5-stretch-extend/format-time.js      | 2 +-
 6 files changed, 16 insertions(+), 25 deletions(-)

diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index 5884be2e7..ec4b3e97b 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -25,8 +25,5 @@ console.log(decimalNumber);
 // =============> write your new code here
 
 function percentaged(decimalNumber) {
-  const constant = 0.5;
-  const percentage = `${constant * 100}%`;
-
-  return percentage;
-}
\ No newline at end of file
+  return `${decimalNumber * 100}%`;
+}
diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js
index 52c2de4f9..a513b1479 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -19,7 +19,5 @@ console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 //  =============> write your new code here
 
 function product(a, b) {
-  const result = a * b;
-  console.log(result)
-  return result;
-}
\ No newline at end of file
+  return a * b;
+}
diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js
index 573a6a703..60392f813 100644
--- a/Sprint-2/3-mandatory-implement/1-bmi.js
+++ b/Sprint-2/3-mandatory-implement/1-bmi.js
@@ -15,7 +15,8 @@
 // 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
-    const result =  weight / Math.pow(height, 2);
-    return result.toFixed(1);
-}
\ No newline at end of file
+  // return the BMI of someone based off their weight and height
+  const result = weight / Math.pow(height, 2);
+  const bmiString = result.toFixed(1);
+  return Number(bmiString);
+}
diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js
index dfa0b6ba6..7e2ec7fa5 100644
--- a/Sprint-2/3-mandatory-implement/2-cases.js
+++ b/Sprint-2/3-mandatory-implement/2-cases.js
@@ -16,10 +16,5 @@
 // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
 
 function toUpperSnakeCase(string) {
-    let result = `${string}`
-    .split(" ")
-    .map(word => word.toUpperCase())
-    .reduce((accumulator, currentValue) => accumulator + "_" + currentValue);
-
-    return result;
-}
\ No newline at end of file
+  return String(string).toUpperCase().replaceAll(" ", "_");
+}
diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index 800f5d600..99829ccad 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -29,19 +29,19 @@ console.log(formatTimeDisplay(number));
 // b) What is the value assigned to num when pad is called for the first time?
 // =============> write your answer here
 
-// 0
+// "0"
 
 // c) What is the return value of pad is called for the first time?
 // =============> write your answer here
 
-// 00
+// "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
+// "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
 
-// 01
+// "01"
diff --git a/Sprint-2/5-stretch-extend/format-time.js b/Sprint-2/5-stretch-extend/format-time.js
index 9221df616..efef00253 100644
--- a/Sprint-2/5-stretch-extend/format-time.js
+++ b/Sprint-2/5-stretch-extend/format-time.js
@@ -4,7 +4,7 @@
 
 function formatAs12HourClock(time) {
   let hours = Number(time.slice(0, 2));
-  const minutes = time.slice(3, 5);
+  const minutes = time.slice(-2);
 
   if (hours === 24) {
     hours = 0;