From 5abf1f56e30e9f68145924aa3b4abdfb78a80565 Mon Sep 17 00:00:00 2001
From: Seti Mussa <Mussasti@gmail.com>
Date: Sat, 7 Mar 2026 19:02:44 +0000
Subject: [PATCH 1/7] Done  coursework/sprint-2

---
 Sprint-2/1-key-errors/0.js                    | 12 ++++++++++++
 Sprint-2/1-key-errors/1.js                    | 13 +++++++++++++
 Sprint-2/1-key-errors/2.js                    | 11 ++++++++++-
 Sprint-2/2-mandatory-debug/0.js               | 12 ++++++++++++
 Sprint-2/2-mandatory-debug/1.js               |  8 ++++++++
 Sprint-2/2-mandatory-debug/2.js               | 16 +++++++++++++++-
 Sprint-2/3-mandatory-implement/1-bmi.js       |  9 +++++++--
 Sprint-2/3-mandatory-implement/2-cases.js     |  4 ++++
 Sprint-2/3-mandatory-implement/3-to-pounds.js |  5 +++++
 Sprint-2/4-mandatory-interpret/time-format.js |  6 +++++-
 10 files changed, 91 insertions(+), 5 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 653d6f5a07..fb4c078733 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -1,5 +1,7 @@
 // Predict and explain first...
 //  =============> write your prediction here
+// The program will give an error.The error happens because `str`is written twice inside the function.
+
 
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
@@ -10,4 +12,14 @@ function capitalise(str) {
 }
 
 // =============> write your explanation here
+// The function already has an input called `str`
+// Inside the function, the code tries to create another variable called `str`using `let`
+//JavaScript does not allow the same varible name to be created again in same place.
+//Because of this, the program throwns an error.
+
 // =============> write your new code here
+
+function captialise(str){
+  str = `${str[0].toUpperCase()}${str.slice(1)}`;
+  return str;
+}
diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index f2d56151f4..ddaae9d092 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
 
+// The program will give an error because of the `decimalNumber` is used outside the function.
+// Even though it is only created inside the function.
+
 // Try playing computer with the example to work out what is going on
 
 function convertToPercentage(decimalNumber) {
@@ -16,5 +19,15 @@ console.log(decimalNumber);
 
 // =============> write your explanation here
 
+//The variable `decimalNumber`is only insdie the function.
+// At the end of the program, console.log( decimalNumber) tries to print it ,
+// however, JavaScript cannot find that varible outside the function.
+// Because of this, the program throws an error.
+
 // 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));
diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index aad57f7cfe..696bd74b0e 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -1,20 +1,29 @@
 
 // Predict and explain first BEFORE you run any code...
+// The program will give a SyntazError because a number (3) is used as peramter name in the function.
 
 // this function should square any number but instead we're going to get an error
 
 // =============> write your prediction of the error here
+// My perdiction is that program will not run and show a SyntaxError because 3 is not a valid variable name.
 
 function square(3) {
     return num * num;
 }
 
 // =============> write the error message here
+// SyntaxError: Unexpected number
 
 // =============> explain this error message here
+// Funtion parameters must be variable names.
+// You cannot use a number like 3 as name of parameter.
+//Javascript required a valid varible name inside the parentheses.
 
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
+function square(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 b27511b417..d3c7109245 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -1,6 +1,9 @@
 // Predict and explain first...
 
 // =============> write your prediction here
+// The program will print 320 first.
+// Then it will " The result of mutiplying 10 and 32 is undefined".
+
 
 function multiply(a, b) {
   console.log(a * b);
@@ -9,6 +12,15 @@ function multiply(a, b) {
 console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
 // =============> write your explanation here
+// The function multiply is used console.log(a * b) to show the result
+// however, it does not resturn the value .
+// when the function is used inside the sentence with ${multiply(10, 32)} 
+// JavaScript expects the function to give back a value.
+//Becuse the function does not return anything, the result becomes 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 37cedfbcfd..a4d5d22aa3 100644
--- a/Sprint-2/2-mandatory-debug/1.js
+++ b/Sprint-2/2-mandatory-debug/1.js
@@ -1,5 +1,6 @@
 // Predict and explain first...
 //  =============> write your prediction here
+//My perdiction the code will show "undefined" becuse the function does not return the sum numbers.
 
 function sum(a, b) {
   return;
@@ -9,5 +10,12 @@ function sum(a, b) {
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
 // =============> write your explanation here
+// The return statemment is ematy and the "c=b" is written after return.
+//When JavaScript see return it stops the function, so a+b is never used.
+
 // 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 57d3f5dc35..c7eecb5703 100644
--- a/Sprint-2/2-mandatory-debug/2.js
+++ b/Sprint-2/2-mandatory-debug/2.js
@@ -1,7 +1,7 @@
 // Predict and explain first...
-
 // Predict the output of the following code:
 // =============> Write your prediction here
+//The code will always show 3 as the last digit because the function does not use the number inside getLastDigit().
 
 const num = 103;
 
@@ -15,10 +15,24 @@ 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
+
 // Explain why the output is the way it is
 // =============> write your explanation here
+// The function does not take any input parameter, it always uses the global variavle num = 103.
+// Because of this the last digit returend is always 3, regardless of the number passed in the function call.
+
 // Finally, correct the code to fix the problem
 // =============> write your new code here
+function getLastDigit(num) {
+  return num.toString().slice(-1);
+}
+console.log(`The last digit of 42 is $(getlastDigita(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
+// The function was fixed by adding a parameter so it can return the last digit of the given number.
diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js
index 17b1cbde1b..0f0d404889 100644
--- a/Sprint-2/3-mandatory-implement/1-bmi.js
+++ b/Sprint-2/3-mandatory-implement/1-bmi.js
@@ -15,5 +15,10 @@
 // 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
-}
\ No newline at end of file
+  // return the BMI of someone based off their weight and height
+}
+
+function calculateBMI(weight, height) {
+  const bmi = weight / (height * height);
+  return Number(bmi.toFixed(1));
+}
diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js
index 5b0ef77ad9..425f388689 100644
--- a/Sprint-2/3-mandatory-implement/2-cases.js
+++ b/Sprint-2/3-mandatory-implement/2-cases.js
@@ -14,3 +14,7 @@
 // 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 convertToUpperSnakeCase(str) {
+  return str.toUpperCase().trim().split("").join("_");
+}
diff --git a/Sprint-2/3-mandatory-implement/3-to-pounds.js b/Sprint-2/3-mandatory-implement/3-to-pounds.js
index 6265a1a703..cd1f813321 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -4,3 +4,8 @@
 // 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(kilograms) {
+  const pounds = kilograms * 2.20462;
+  return Number(pounds.toFixed(2));
+}
diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index 7c98eb0e8c..4063821dde 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -18,17 +18,21 @@ function formatTimeDisplay(seconds) {
 
 // a) When formatTimeDisplay is called how many times will pad be called?
 // =============> write your answer here
+// Pad wil be called 3 times because the return statement uses pad for hours, mintues and seconds.
 
 // 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 is 0 because totalHours is 0 when the input is 61 seconds.
 
 // c) What is the return value of pad is called for the first time?
 // =============> write your answer here
+// The return value is "00" because padStart makes the number two digits by adding a 0 at the start.
 
 // 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 is 1 because the last call to pad uses remainingSeconds, which is 1 when the input is 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 is "01" because padStart adds a 0 infornt of the single digit number.

From 045a934c41fd056dcd156f1e513df616ee6d259e Mon Sep 17 00:00:00 2001
From: Seti Mussa <Mussasti@gmail.com>
Date: Sat, 14 Mar 2026 08:47:16 +0000
Subject: [PATCH 2/7] I have fixed the mistakes according to the feedabck.

---
 Sprint-2/2-mandatory-debug/0.js               |  3 ++-
 Sprint-2/3-mandatory-implement/2-cases.js     |  4 +++-
 Sprint-2/3-mandatory-implement/3-to-pounds.js | 23 +++++++++++++++----
 .../implement/2-is-proper-fraction.js         |  2 +-
 4 files changed, 25 insertions(+), 7 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js
index d3c7109245..d7974e42ab 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -2,7 +2,7 @@
 
 // =============> write your prediction here
 // The program will print 320 first.
-// Then it will " The result of mutiplying 10 and 32 is undefined".
+// Then it will " The result of mutiplying 10 and 32 is 320".
 
 
 function multiply(a, b) {
@@ -23,4 +23,5 @@ console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 function multiply(a,b){
   return a*b;
   }
+  
   console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)} `);
diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js
index 425f388689..a6c4853597 100644
--- a/Sprint-2/3-mandatory-implement/2-cases.js
+++ b/Sprint-2/3-mandatory-implement/2-cases.js
@@ -16,5 +16,7 @@
 // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase
 
 function convertToUpperSnakeCase(str) {
-  return str.toUpperCase().trim().split("").join("_");
+  return str.toUpperCase().trim().split(" ").join("_");
 }
+
+console.log(convertToUpperSnakeCase("hello there")); // "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 cd1f813321..2f2b181dda 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -5,7 +5,22 @@
 
 // You should call this function a number of times to check it works for different inputs
 
-function toPounds(kilograms) {
-  const pounds = kilograms * 2.20462;
-  return Number(pounds.toFixed(2));
-}
+const toPounds = (kg) => +(kg * 2.20462).toFixed(2);
+
+const penceToPounds = (p) => `£${(p / 100).toFixed(2)}`;
+const toUpperSnakeCase = (s) => s.toUpperCase().trim().split(" ").join("_");
+const multiply = (a, b) => a * b;
+
+// Tests
+console.log(toPounds(10)); // 22.05
+
+console.log(penceToPounds(150)); // "£1.50"
+
+console.log(toUpperSnakeCase("hello there"));
+// "HELLO_THERE"
+console.log(multiply(10, 32)); // 320
+
+const convertToUpperSnakeCase = (str) =>
+  str.toUpperCase().trim().split(" ").join("_");
+
+console.log(convertToUpperSnakeCase("hello there")); // "HELLO_THERE"
diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
index 970cb9b641..1e619b39eb 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
@@ -30,4 +30,4 @@ function assertEquals(actualOutput, targetOutput) {
 // What combinations of numerators and denominators should you test?
 
 // Example: 1/2 is a proper fraction
-assertEquals(isProperFraction(1, 2), true);
+assertEquals(isProperFraction(1, 2), true); 

From 6b5e82d56ac77f7b9957f5d7a7ff657ef097fca5 Mon Sep 17 00:00:00 2001
From: Seti Mussa <Mussasti@gmail.com>
Date: Sat, 14 Mar 2026 11:53:05 +0000
Subject: [PATCH 3/7] Just made changes on question

---
 Sprint-2/1-key-errors/2.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index 696bd74b0e..cdc3652725 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -7,9 +7,9 @@
 // =============> write your prediction of the error here
 // My perdiction is that program will not run and show a SyntaxError because 3 is not a valid variable name.
 
-function square(3) {
-    return num * num;
-}
+// function square(3) {
+//     return num * num;
+// }
 
 // =============> write the error message here
 // SyntaxError: Unexpected number

From a625e694972aaedb42afbe2153aa6f80befa2132 Mon Sep 17 00:00:00 2001
From: Seti Mussa <Mussasti@gmail.com>
Date: Sat, 14 Mar 2026 12:06:22 +0000
Subject: [PATCH 4/7] Restore files

---
 .../implement/2-is-proper-fraction.js                           | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
index 1e619b39eb..970cb9b641 100644
--- a/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
+++ b/Sprint-3/1-implement-and-rewrite-tests/implement/2-is-proper-fraction.js
@@ -30,4 +30,4 @@ function assertEquals(actualOutput, targetOutput) {
 // What combinations of numerators and denominators should you test?
 
 // Example: 1/2 is a proper fraction
-assertEquals(isProperFraction(1, 2), true); 
+assertEquals(isProperFraction(1, 2), true);

From 9b3eb4b687e97668b07b25732f9a67a512c7724f Mon Sep 17 00:00:00 2001
From: Seti Mussa <Mussasti@gmail.com>
Date: Sat, 14 Mar 2026 13:31:13 +0000
Subject: [PATCH 5/7] Applied the feedback

---
 Sprint-2/2-mandatory-debug/0.js | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js
index d7974e42ab..cb9e33c3f3 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -4,7 +4,6 @@
 // The program will print 320 first.
 // Then it will " The result of mutiplying 10 and 32 is 320".
 
-
 function multiply(a, b) {
   console.log(a * b);
 }
@@ -14,14 +13,14 @@ console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 // =============> write your explanation here
 // The function multiply is used console.log(a * b) to show the result
 // however, it does not resturn the value .
-// when the function is used inside the sentence with ${multiply(10, 32)} 
+// when the function is used inside the sentence with ${multiply(10, 32)}
 // JavaScript expects the function to give back a value.
 //Becuse the function does not return anything, the result becomes 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)} `);
+function multiply(a, b) {
+  return a * b;
+}
+
+console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)} `);

From 41d76e20a24318e43dd965dd79787ded6dd5eb8f Mon Sep 17 00:00:00 2001
From: Seti Mussa <Mussasti@gmail.com>
Date: Sat, 14 Mar 2026 23:30:38 +0000
Subject: [PATCH 6/7] Exaplined why implement 4 different functions in this
 file.

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

diff --git a/Sprint-2/3-mandatory-implement/3-to-pounds.js b/Sprint-2/3-mandatory-implement/3-to-pounds.js
index 2f2b181dda..fe5445b196 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -24,3 +24,10 @@ const convertToUpperSnakeCase = (str) =>
   str.toUpperCase().trim().split(" ").join("_");
 
 console.log(convertToUpperSnakeCase("hello there")); // "HELLO_THERE"
+
+// Four functions are implemented because each one performs a specific task.
+// This makes the code easier to read, reuse, and maintain.
+//
+// The penceToPounds function was updated to handle a pence string like "399p".
+// It removes the "p", converts the value to a number, and divides by 100
+// so the function correctly returns "£3.99".s

From dee92a3bc99e7efb89fe508f98f4185f39593de8 Mon Sep 17 00:00:00 2001
From: Seti Mussa <Mussasti@gmail.com>
Date: Wed, 18 Mar 2026 23:26:48 +0000
Subject: [PATCH 7/7] Fixed the issues

---
 Sprint-2/3-mandatory-implement/3-to-pounds.js | 27 ++++---------------
 1 file changed, 5 insertions(+), 22 deletions(-)

diff --git a/Sprint-2/3-mandatory-implement/3-to-pounds.js b/Sprint-2/3-mandatory-implement/3-to-pounds.js
index fe5445b196..4a1ba44eec 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -5,29 +5,12 @@
 
 // You should call this function a number of times to check it works for different inputs
 
-const toPounds = (kg) => +(kg * 2.20462).toFixed(2);
-
-const penceToPounds = (p) => `£${(p / 100).toFixed(2)}`;
-const toUpperSnakeCase = (s) => s.toUpperCase().trim().split(" ").join("_");
-const multiply = (a, b) => a * b;
+const penceToPounds= (p) => {
+  const value = parseInt(p.replace("p", ""));
+  return `£${(value / 100).toFixed(2)}`;
+};
 
 // Tests
-console.log(toPounds(10)); // 22.05
-
-console.log(penceToPounds(150)); // "£1.50"
-
-console.log(toUpperSnakeCase("hello there"));
-// "HELLO_THERE"
-console.log(multiply(10, 32)); // 320
-
-const convertToUpperSnakeCase = (str) =>
-  str.toUpperCase().trim().split(" ").join("_");
+console.log(penceToPounds("399p")); // "£3.99"
 
-console.log(convertToUpperSnakeCase("hello there")); // "HELLO_THERE"
 
-// Four functions are implemented because each one performs a specific task.
-// This makes the code easier to read, reuse, and maintain.
-//
-// The penceToPounds function was updated to handle a pence string like "399p".
-// It removes the "p", converts the value to a number, and divides by 100
-// so the function correctly returns "£3.99".s