From d20c0a3eaaf516a4dfebc330b778e3ebbed5d2be Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Mon, 23 Feb 2026 22:23:56 +0000
Subject: [PATCH 01/30] describing what line 3 is doing (reassignment)

Updated comment to clarify the assignment operation.
---
 Sprint-1/1-key-exercises/1-count.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js
index 117bcb2b6..7d4d50fe8 100644
--- a/Sprint-1/1-key-exercises/1-count.js
+++ b/Sprint-1/1-key-exercises/1-count.js
@@ -3,4 +3,4 @@ let count = 0;
 count = count + 1;
 
 // Line 1 is a variable declaration, creating the count variable with an initial value of 0
-// Describe what line 3 is doing, in particular focus on what = is doing
+// the third line used the the assignment operator '=' to reassign the variable count to the initial value which is zero incremented by one  resulting to the value 1

From 3428f4199b5a0b2de0dbed37f5838cec30142b28 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Tue, 24 Feb 2026 23:21:05 +0000
Subject: [PATCH 02/30] producing the string "CKJ"

Updated the initials variable to dynamically generate initials from first, middle, and last names.
---
 Sprint-1/1-key-exercises/2-initials.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js
index 47561f617..000e8e1cc 100644
--- a/Sprint-1/1-key-exercises/2-initials.js
+++ b/Sprint-1/1-key-exercises/2-initials.js
@@ -5,7 +5,11 @@ let lastName = "Johnson";
 // Declare a variable called initials that stores the first character of each string.
 // This should produce the string "CKJ", but you must not write the characters C, K, or J in the code of your solution.
 
-let initials = ``;
+let initials = firstName.charAt(0)+middleName.charAt(0)+lastName.charAt(0);
+// or
+let initials = firstName[0] + middleName[0] + lastName[0];
+// or but rarely used and not recommended because it might cause bugs
+let initials = firstName[0].concat(middleName[0], lastName[0]);
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn
 

From 38427c240c47592e6dd708a07d115abc986f73d1 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Wed, 25 Feb 2026 15:39:07 +0000
Subject: [PATCH 03/30] creating variable to store specific part (slice) of
 string

Implemented logic to extract directory and extension from filePath.
---
 Sprint-1/1-key-exercises/3-paths.js | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/Sprint-1/1-key-exercises/3-paths.js b/Sprint-1/1-key-exercises/3-paths.js
index ab90ebb28..6d1c509e5 100644
--- a/Sprint-1/1-key-exercises/3-paths.js
+++ b/Sprint-1/1-key-exercises/3-paths.js
@@ -17,7 +17,10 @@ console.log(`The base part of ${filePath} is ${base}`);
 // Create a variable to store the dir part of the filePath variable
 // Create a variable to store the ext part of the variable
 
-const dir = ;
-const ext = ;
+const dir = filePath.slice(0,lastSlashIndex+1);
+const ext = filePath.slice(-3); //the extention of the file is always the last three characters in the path
+//or
+const lastPointIndex = filePath.lastIndexOf(".");
+const ext = filePath.slice(lastPointIndex+1);
 
-// https://www.google.com/search?q=slice+mdn
\ No newline at end of file
+// https://www.google.com/search?q=slice+mdn

From 2f3f08d109929057e3b48615d9a6f22a994b4736 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Wed, 25 Feb 2026 18:52:47 +0000
Subject: [PATCH 04/30] building an idea of what a program is doing

Added comments to explain the purpose and behavior of the num variable and the random number generation process.
---
 Sprint-1/1-key-exercises/4-random.js | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js
index 292f83aab..74b490d15 100644
--- a/Sprint-1/1-key-exercises/4-random.js
+++ b/Sprint-1/1-key-exercises/4-random.js
@@ -7,3 +7,14 @@ const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 // Try breaking down the expression and using documentation to explain what it means
 // It will help to think about the order in which expressions are evaluated
 // Try logging the value of num and running the program several times to build an idea of what the program is doing
+
+// the num represents a value with limited interval and that's why
+// the num assigned to a value that's in the dor of an expression
+// the math object is invoked to perform some mathematical tasks
+// the random method is invoked to get a random number between 0 and 1
+// the random number is multiplied by 100 
+// the floor method is invoked to round down the result to its nearest integer
+//  added one to the new result
+// the final result of the whole expression is what the variable num assigned to
+/* after applying the program several times, I got the idea that the program is generating 
+a value to the num variable thats always between minimum an maximum*/  

From 44271ba7b060f6ef262c88fae0a083fd97ae2547 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Wed, 25 Feb 2026 22:06:55 +0000
Subject: [PATCH 05/30] Convert instructions to comments

---
 Sprint-1/2-mandatory-errors/0.js | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/0.js b/Sprint-1/2-mandatory-errors/0.js
index cf6c5039f..59cd85d52 100644
--- a/Sprint-1/2-mandatory-errors/0.js
+++ b/Sprint-1/2-mandatory-errors/0.js
@@ -1,2 +1,3 @@
-This is just an instruction for the first activity - but it is just for human consumption
-We don't want the computer to run these 2 lines - how can we solve this problem?
\ No newline at end of file
+// This is just an instruction for the first activity - but it is just for human consumption
+// We don't want the computer to run these 2 lines - how can we solve this problem?
+// to make the computer not running these two line we use inline comments by adding two slashes at the beginning of each line

From e0b32562ca045b8cad9c27ee6239553cd30703ac Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Wed, 25 Feb 2026 22:12:34 +0000
Subject: [PATCH 06/30] Use 'let' for age variable to enable reassignment

Changed 'const' to 'let' for age variable to allow reassignment.
---
 Sprint-1/2-mandatory-errors/1.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-1/2-mandatory-errors/1.js b/Sprint-1/2-mandatory-errors/1.js
index 7a43cbea7..af5aad5c0 100644
--- a/Sprint-1/2-mandatory-errors/1.js
+++ b/Sprint-1/2-mandatory-errors/1.js
@@ -1,4 +1,4 @@
 // trying to create an age variable and then reassign the value by 1
 
-const age = 33;
+let age = 33; // we should use the keyword 'let' to declare the variable 'age' to allow reassignment later 
 age = age + 1;

From 21914bb407a895b19e2de778edb292aead6b1778 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Wed, 25 Feb 2026 22:18:35 +0000
Subject: [PATCH 07/30] Correct variable declaration for cityOfBirth

Fix variable declaration order to avoid reference error.
---
 Sprint-1/2-mandatory-errors/2.js | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js
index e09b89831..6fd12745c 100644
--- a/Sprint-1/2-mandatory-errors/2.js
+++ b/Sprint-1/2-mandatory-errors/2.js
@@ -1,5 +1,7 @@
 // Currently trying to print the string "I was born in Bolton" but it isn't working...
 // what's the error ?
 
-console.log(`I was born in ${cityOfBirth}`);
 const cityOfBirth = "Bolton";
+console.log(`I was born in ${cityOfBirth}`);
+
+// the error is that the variable 'cityOfBirth' is declared after the statement it is used in

From 17d93a63af0f07a5d89b1bbf927a826064e30249 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Wed, 25 Feb 2026 22:51:54 +0000
Subject: [PATCH 08/30] Fix the typeOf variable to be able to use a method

Updated last4Digits assignment to convert cardNumber to a string before slicing.
---
 Sprint-1/2-mandatory-errors/3.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js
index ec101884d..91263c6a0 100644
--- a/Sprint-1/2-mandatory-errors/3.js
+++ b/Sprint-1/2-mandatory-errors/3.js
@@ -1,5 +1,5 @@
 const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.slice(-4);
+const last4Digits = (cardNumber.toString()).slice(-4);
 
 // The last4Digits variable should store the last 4 digits of cardNumber
 // However, the code isn't working
@@ -7,3 +7,12 @@ const last4Digits = cardNumber.slice(-4);
 // Then run the code and see what error it gives.
 // Consider: Why does it give this error? Is this what I predicted? If not, what's different?
 // Then try updating the expression last4Digits is assigned to, in order to get the correct value
+
+/* my prediction about why the code isn't working is because either the new variable is declared with const keyword
+or the value of the variable cardNumber is a number not a string whereas the method .slice works only with strings */
+// the error it gives 'cardNumber.slice is not a function'
+// It gives this error because the computer assumes the coder is trying to invoke a function
+// yes it is my second prediction
+// updating the expression last4Digits is assigned to, in order to get the correct value is as follows
+// method one: puting the value of the variable cardNumber into quotes
+// method two: invoking the method .toString() to convert the type of the variable from number to string

From af481768bb66e3740dd8941427761eaa0a7985d8 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Wed, 25 Feb 2026 23:02:00 +0000
Subject: [PATCH 09/30] Rename clock time variables to valid identifiers

Updated variable names to avoid starting with digits.
---
 Sprint-1/2-mandatory-errors/4.js | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js
index 21dad8c5d..d78326fc3 100644
--- a/Sprint-1/2-mandatory-errors/4.js
+++ b/Sprint-1/2-mandatory-errors/4.js
@@ -1,2 +1,6 @@
-const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
\ No newline at end of file
+const _12HourClockTime = "20:53"; // identifier can not begin with a number
+// or
+const $12HourClockTime = "20:53"; // or any change that makes the identifier not stating with digit
+const _24hourClockTime = "08:53"; // identifier can not begin with a number
+// or
+const $24hourClockTime = "08:53"; // or any change that makes the identifier not stating with digit

From 4ba270e254bce4b12a7dd8353cbb0035d7c89b4a Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Thu, 26 Feb 2026 23:15:14 +0000
Subject: [PATCH 10/30] Fix syntax error in priceAfterOneYear assignment

Fixed syntax error in priceAfterOneYear assignment and updated comments.
---
 .../3-mandatory-interpret/1-percentage-change.js  | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/3-mandatory-interpret/1-percentage-change.js b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
index e24ecb8e1..73b30a9ea 100644
--- a/Sprint-1/3-mandatory-interpret/1-percentage-change.js
+++ b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
@@ -2,7 +2,7 @@ let carPrice = "10,000";
 let priceAfterOneYear = "8,543";
 
 carPrice = Number(carPrice.replaceAll(",", ""));
-priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
 
 const priceDifference = carPrice - priceAfterOneYear;
 const percentageChange = (priceDifference / carPrice) * 100;
@@ -12,11 +12,24 @@ console.log(`The percentage change is ${percentageChange}`);
 // Read the code and then answer the questions below
 
 // a) How many function calls are there in this file? Write down all the lines where a function call is made
+// there are five function calls in this file, the lines where a call function is made are as follows:
+// line 4, replaceAll()
+// line 4, Number()
+// line 5, replaceAll()
+// line 5, Number()
+// line 10, console.log()
 
 // b) Run the code and identify the line where the error is coming from - why is this error occurring? How can you fix this problem?
+// the error is coming from line 5
+// it is a syntax error, the expression priceAfterOneYear.replaceAll("," "") ismissing a comma
+// to fix this problem we add comma between the two arguments
 
 // c) Identify all the lines that are variable reassignment statements
+// the lines that are variable reassignment statements: -line 4 -line 5
 
 // d) Identify all the lines that are variable declarations
+// the lines that are variable declarations: -line 1 -line 2 -line 7 -line 8
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+// the expression calls the replace method to replace the comma with empty string
+// converting the new string to a number to be able to perform math operations

From 67c8968cf8c1f491eede4492285bd36d185a0ad0 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Thu, 26 Feb 2026 23:56:42 +0000
Subject: [PATCH 11/30] generating time format for duration of a movie

---
 Sprint-1/3-mandatory-interpret/2-time-format.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Sprint-1/3-mandatory-interpret/2-time-format.js b/Sprint-1/3-mandatory-interpret/2-time-format.js
index 47d239558..e2dcfae0c 100644
--- a/Sprint-1/3-mandatory-interpret/2-time-format.js
+++ b/Sprint-1/3-mandatory-interpret/2-time-format.js
@@ -12,14 +12,21 @@ console.log(result);
 // For the piece of code above, read the code and then answer the following questions
 
 // a) How many variable declarations are there in this program?
+// there are 6 variable declaration
 
 // b) How many function calls are there?
+// there is one function call (console.log())
 
 // c) Using documentation, explain what the expression movieLength % 60 represents
+// it represents the remaining of dividing movielength by 60
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
+// it means the integer quotient of dividing movieLength by 60
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
+// it represents the length of the movie in hours, minutes and seconds format
+// a better name would be: movieTimeVolume
 
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+// no it will not work for negative input values as it gives negative results

From b72751f496440c69e9275a957d26afe2af82de00 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Fri, 27 Feb 2026 15:22:01 +0000
Subject: [PATCH 12/30] describing the purpose behind each step of the code

Added comments to explain the purpose of each step in the code.
---
 Sprint-1/3-mandatory-interpret/3-to-pounds.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Sprint-1/3-mandatory-interpret/3-to-pounds.js b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
index 60c9ace69..ddb4b40a4 100644
--- a/Sprint-1/3-mandatory-interpret/3-to-pounds.js
+++ b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
@@ -25,3 +25,8 @@ console.log(`£${pounds}.${pence}`);
 
 // To begin, we can start with
 // 1. const penceString = "399p": initialises a string variable with the value "399p"
+// line 3: calling substring method to remove the 'p' letter and keep only digits in the string
+// line 8: using padstart method to make the minimum length of the string to 3 characters by adding one zero or two to the left.
+// line 9: using substring method to take only the integer part
+// line 14: using substring method to take only the decimal part and padend method to make the minimum length of pence to 2 characters by adding zero to the right
+// line 18: calling console function to print the integer part that represents the pound and the decimal part that represents the pence seprated by point

From 35fdc82b33b2cd71659161ad72ece8c01e54cf55 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Fri, 27 Feb 2026 22:34:27 +0000
Subject: [PATCH 13/30] Fix variable redeclaration in a function

Updated the capitalise function to fix variable redeclaration and corrected the return variable name.
---
 Sprint-2/1-key-errors/0.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 653d6f5a0..26eec1a58 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -1,5 +1,5 @@
 // Predict and explain first...
-//  =============> write your prediction here
+//  =============> the function is not going to work because a variable is declared twice (str)
 
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
@@ -9,5 +9,10 @@ function capitalise(str) {
   return str;
 }
 
-// =============> write your explanation here
-// =============> write your new code here
+// =============> the error message 'Identifier 'str' has already been declared', diplays because the toUpperCase function does not change the value of the varible declared 
+// but it creates a new one.
+// =============> my new code: 
+function capitalise(str) {
+  result = `${str[0].toUpperCase()}${str.slice(1)}`;
+  return resault;
+}

From 4fdfb0707d0ae38a1cef926a9668fff91f466c47 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Fri, 27 Feb 2026 22:38:27 +0000
Subject: [PATCH 14/30] declaraing the  variable 'result' in capitalise
 function

Declare 'result' with 'let' to avoid redeclaration error.
---
 Sprint-2/1-key-errors/0.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 26eec1a58..39666b060 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -13,6 +13,6 @@ function capitalise(str) {
 // but it creates a new one.
 // =============> my new code: 
 function capitalise(str) {
-  result = `${str[0].toUpperCase()}${str.slice(1)}`;
+  let result = `${str[0].toUpperCase()}${str.slice(1)}`;
   return resault;
 }

From d100737073f2f48036d5eccaf331b3e7321c218c Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Fri, 27 Feb 2026 22:51:51 +0000
Subject: [PATCH 15/30] Fix duplicate variable declaration and assigning in
 convertToPercentage function

Removed duplicate declaration of decimalNumber and updated comments.
---
 Sprint-2/1-key-errors/1.js | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index f2d56151f..cb2870c5f 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -1,7 +1,8 @@
 // Predict and explain first...
 
 // Why will an error occur when this program runs?
-// =============> write your prediction here
+// =============> because first: the variable decimalNumber is declared twice
+// second: the parameter decimalNumber is assigned to a value inside the function
 
 // Try playing computer with the example to work out what is going on
 
@@ -14,7 +15,13 @@ function convertToPercentage(decimalNumber) {
 
 console.log(decimalNumber);
 
-// =============> write your explanation here
+// =============> Identifier 'decimalNumber' has already been declared is the error msg thrown by the code
 
 // Finally, correct the code to fix the problem
-// =============> write your new code here
+// =============> 
+function convertToPercentage(decimalNumber) {
+//  const decimalNumber = 0.5; this line must be deleted
+  const percentage = `${decimalNumber * 100}%`;
+
+  return percentage;
+}

From 3bcd5ba7f028cd57a445df6af8e4684f3b778d73 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Fri, 27 Feb 2026 23:02:42 +0000
Subject: [PATCH 16/30] Fix square function parameter

Corrected the square function to properly accept a parameter and return its square.
---
 Sprint-2/1-key-errors/2.js | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index aad57f7cf..25eb01a12 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -3,18 +3,22 @@
 
 // this function should square any number but instead we're going to get an error
 
-// =============> write your prediction of the error here
+// =============> identifier not declared (unknown)
 
 function square(3) {
     return num * num;
 }
 
-// =============> write the error message here
+// =============> Unexpected number
 
-// =============> explain this error message here
+// =============> the parameter shouldn't be given an argument in the function definition
 
 // Finally, correct the code to fix the problem
 
-// =============> write your new code here
+// =============> my new code
+function square(num) {
+    return num * num;
+}
+console.log(square(3));
 
 

From 5809aeec54cfeae9d2cd763b7f590d7566076987 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Fri, 27 Feb 2026 23:48:00 +0000
Subject: [PATCH 17/30] Fix multiply function to return result and log output

Refactored multiply function to include return statement and improved logging.
---
 Sprint-2/2-mandatory-debug/0.js | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js
index b27511b41..bd32b29c0 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -1,6 +1,6 @@
 // Predict and explain first...
 
-// =============> write your prediction here
+// =============> the function when called will throw an error
 
 function multiply(a, b) {
   console.log(a * b);
@@ -8,7 +8,19 @@ function multiply(a, b) {
 
 console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
-// =============> write your explanation here
+// =============> the function multiply has no return statement
 
 // Finally, correct the code to fix the problem
-//  =============> write your new code here
+//  =============> 
+function multiply(a, b) {
+  return (a * b); // we change the console.log statement with the return statement
+}
+
+console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
+
+// an extra notice: the purpose of creating a function is to reuse it when needed 
+// I've noticed that the parameters are already assigned to values 10 and 32, so I changed the code to the following:
+function multiply(a, b) {
+  return console.log(`The result of multiplying ` + a +` and ` + b +` is ` + (a * b));
+}
+multiply(10, 32);

From eee4034ac0c72706dce804eb8d88fe59323e5184 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Fri, 27 Feb 2026 23:56:06 +0000
Subject: [PATCH 18/30] Correct sum function to return the sum of arguments

Fix the sum function to correctly return the sum of two numbers.
---
 Sprint-2/2-mandatory-debug/1.js | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/1.js b/Sprint-2/2-mandatory-debug/1.js
index 37cedfbcf..25d013be0 100644
--- a/Sprint-2/2-mandatory-debug/1.js
+++ b/Sprint-2/2-mandatory-debug/1.js
@@ -1,5 +1,5 @@
 // Predict and explain first...
-//  =============> write your prediction here
+//  =============> The sum of 10 and 32 is undefined
 
 function sum(a, b) {
   return;
@@ -8,6 +8,13 @@ function sum(a, b) {
 
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
-// =============> write your explanation here
+// =============> the function sum returns Nul because it's straight followed by semicolon thate ends the statement
+// also the statement a + b is in new line
 // Finally, correct the code to fix the problem
-//  =============> write your new code here
+//  =============> my new code
+function sum(a, b) {
+  return a + b;
+}
+
+console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
+

From db4474820eeca48ceda366735b43fe8e12ee1a04 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sat, 28 Feb 2026 00:09:47 +0000
Subject: [PATCH 19/30] Fix getLastDigit function to return correct last digit

Corrected the getLastDigit function to accept a parameter and return the last digit of a number.
---
 Sprint-2/2-mandatory-debug/2.js | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/2.js b/Sprint-2/2-mandatory-debug/2.js
index 57d3f5dc3..9e0d7acd0 100644
--- a/Sprint-2/2-mandatory-debug/2.js
+++ b/Sprint-2/2-mandatory-debug/2.js
@@ -1,7 +1,10 @@
 // Predict and explain first...
 
 // Predict the output of the following code:
-// =============> Write your prediction here
+// =============> 
+// The last digit of 42 is 3
+// The last digit of 105 is 3
+// The last digit of 806 is 3
 
 const num = 103;
 
@@ -14,11 +17,20 @@ 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
 // Explain why the output is the way it is
-// =============> write your explanation here
+// =============> the variable num is assigned to the value 103 in the global scope and not assigned to any value in the function scope
 // Finally, correct the code to fix the problem
 // =============> write your new code here
+function getLastDigit(num) { // we add the identier num as parameter to the 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)}`);
 
 // This program should tell the user the last digit of each number.
 // Explain why getLastDigit is not working properly - correct the problem

From 429f649a39b387f39e43da77bc74e7ba9d5c668b Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 15:57:19 +0000
Subject: [PATCH 20/30] Implement upperSnakeCase function

Added a function to convert a string to upper snake case.
---
 Sprint-2/3-mandatory-implement/2-cases.js | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js
index 5b0ef77ad..994aa4b5d 100644
--- a/Sprint-2/3-mandatory-implement/2-cases.js
+++ b/Sprint-2/3-mandatory-implement/2-cases.js
@@ -14,3 +14,9 @@
 // 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 upperSnakeCase(wordsSet) {
+  let wsSnakeCase = wordsSet.replaceAll(' ','_');
+  let wsupperSnakeCase = wsSnakeCase.toUpperCase();
+  return console.log(wsupperSnakeCase);
+}
+upperSnakeCase('i do not know'); // evaluates to: "I_DO_NOT_KNOW"

From 92bd8ef8afa349e4cb4d0c99b88c687bd8a840b7 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 16:09:22 +0000
Subject: [PATCH 21/30] Implement toPounds function

---
 Sprint-2/3-mandatory-implement/3-to-pounds.js | 13 +++++++++++++
 1 file changed, 13 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..656792454 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -4,3 +4,16 @@
 // 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 console.log(`£${pounds}.${pence}`);
+}
+toPounds('399p') // £3.99
+toPounds('1095p') // £10.95

From 56b74d5f822563c2bf7600d712a49a7ecc154b99 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 19:02:33 +0000
Subject: [PATCH 22/30] Clarify pad function behavior in comments

Updated comments in time-format.js to clarify the behavior of the pad function.
---
 Sprint-2/4-mandatory-interpret/time-format.js | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index 7c98eb0e8..a5facbec8 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -17,18 +17,27 @@ function formatTimeDisplay(seconds) {
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
-// =============> write your answer here
+// =============> pad will be called 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
+// =============> the value assigned to num is 0
 
 // c) What is the return value of pad is called for the first time?
-// =============> write your answer here
+// =============> the return value of pad 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 is 1
+// because the last time pad is called for the remainingSeconds holding the value 1
+// return pad(remainingSeconds)
+// function pad(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 of pad is called for the last time is "01"
+// because the argument passed to the pad parameter is the value of the remainingSeconds wich is 1
+// function pad(1){
+// return 1.toString().padStart(2, "0");
+// return "1".pad(2,"0");
+// return "01"
+//}

From 5196c63e432fb64607e334dd9dfcedff1d734275 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 19:08:29 +0000
Subject: [PATCH 23/30] Clean up comments in time-format.js

Removed comments with answers to questions about the pad function.
---
 Sprint-2/4-mandatory-interpret/time-format.js | 19 +++++--------------
 1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js
index a5facbec8..f24c426fb 100644
--- a/Sprint-2/4-mandatory-interpret/time-format.js
+++ b/Sprint-2/4-mandatory-interpret/time-format.js
@@ -17,27 +17,18 @@ function formatTimeDisplay(seconds) {
 // Questions
 
 // a) When formatTimeDisplay is called how many times will pad be called?
-// =============> pad will be called 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?
-// =============> the value assigned to num is 0
+// =============> write your answer here
 
 // c) What is the return value of pad is called for the first time?
-// =============> the return value of pad is called for the first time is "00"
+// =============> write your answer here
 
 // d) What is the value assigned to num when pad is called for the last time in this program?  Explain your answer
-// =============> the value assigned to num is 1
-// because the last time pad is called for the remainingSeconds holding the value 1
-// return pad(remainingSeconds)
-// function pad(1){
+// =============> write your answer here
 
 // e) What is the return value assigned to num when pad is called for the last time in this program?  Explain your answer
-// =============> the return value of pad is called for the last time is "01"
-// because the argument passed to the pad parameter is the value of the remainingSeconds wich is 1
-// function pad(1){
-// return 1.toString().padStart(2, "0");
-// return "1".pad(2,"0");
-// return "01"
-//}
+// =============> write your answer here

From 122c731ad28403032be415e96b875edccfb0640f Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 22:15:01 +0000
Subject: [PATCH 24/30] Refactor toPounds function

Refactor toPounds function for reusability and clarity.
---
 Sprint-2/3-mandatory-implement/3-to-pounds.js | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/Sprint-2/3-mandatory-implement/3-to-pounds.js b/Sprint-2/3-mandatory-implement/3-to-pounds.js
index 656792454..6265a1a70 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -4,16 +4,3 @@
 // 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 console.log(`£${pounds}.${pence}`);
-}
-toPounds('399p') // £3.99
-toPounds('1095p') // £10.95

From 7d09f40e315ffe84147e63ce9dc0f5ba7cba979e Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 22:20:30 +0000
Subject: [PATCH 25/30] Remove upperSnakeCase function restore the file to the
 main version

Removed the upperSnakeCase function implementation and example call.
---
 Sprint-2/3-mandatory-implement/2-cases.js | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js
index 994aa4b5d..5b0ef77ad 100644
--- a/Sprint-2/3-mandatory-implement/2-cases.js
+++ b/Sprint-2/3-mandatory-implement/2-cases.js
@@ -14,9 +14,3 @@
 // 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 upperSnakeCase(wordsSet) {
-  let wsSnakeCase = wordsSet.replaceAll(' ','_');
-  let wsupperSnakeCase = wsSnakeCase.toUpperCase();
-  return console.log(wsupperSnakeCase);
-}
-upperSnakeCase('i do not know'); // evaluates to: "I_DO_NOT_KNOW"

From 7b87fbc5bbd98c0be4b11fc25882e06c08f409be Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 22:27:55 +0000
Subject: [PATCH 26/30] Update 2.js

---
 Sprint-2/2-mandatory-debug/2.js | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/2.js b/Sprint-2/2-mandatory-debug/2.js
index 9e0d7acd0..57d3f5dc3 100644
--- a/Sprint-2/2-mandatory-debug/2.js
+++ b/Sprint-2/2-mandatory-debug/2.js
@@ -1,10 +1,7 @@
 // Predict and explain first...
 
 // Predict the output of the following code:
-// =============> 
-// The last digit of 42 is 3
-// The last digit of 105 is 3
-// The last digit of 806 is 3
+// =============> Write your prediction here
 
 const num = 103;
 
@@ -17,20 +14,11 @@ 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
-// =============>// The last digit of 42 is 3
-// The last digit of 105 is 3
-// The last digit of 806 is 3
+// =============> write the output here
 // Explain why the output is the way it is
-// =============> the variable num is assigned to the value 103 in the global scope and not assigned to any value in the function scope
+// =============> write your explanation here
 // Finally, correct the code to fix the problem
 // =============> write your new code here
-function getLastDigit(num) { // we add the identier num as parameter to the 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)}`);
 
 // This program should tell the user the last digit of each number.
 // Explain why getLastDigit is not working properly - correct the problem

From 652dbc11025329259f780f3b067730a066456263 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 22:31:23 +0000
Subject: [PATCH 27/30] Update 1.js

Fix the sum function to return the correct result.
---
 Sprint-2/2-mandatory-debug/1.js | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/Sprint-2/2-mandatory-debug/1.js b/Sprint-2/2-mandatory-debug/1.js
index 25d013be0..37cedfbcf 100644
--- a/Sprint-2/2-mandatory-debug/1.js
+++ b/Sprint-2/2-mandatory-debug/1.js
@@ -1,5 +1,5 @@
 // Predict and explain first...
-//  =============> The sum of 10 and 32 is undefined
+//  =============> write your prediction here
 
 function sum(a, b) {
   return;
@@ -8,13 +8,6 @@ function sum(a, b) {
 
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
-// =============> the function sum returns Nul because it's straight followed by semicolon thate ends the statement
-// also the statement a + b is in new line
+// =============> write your explanation here
 // Finally, correct the code to fix the problem
-//  =============> my new code
-function sum(a, b) {
-  return a + b;
-}
-
-console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
-
+//  =============> write your new code here

From bbdcc95453a99e5c11041e9dd0ad2580d9fc22ab Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 22:33:46 +0000
Subject: [PATCH 28/30] Update 2.js

Corrected the square function to properly accept a parameter and return its square.
---
 Sprint-2/1-key-errors/2.js | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index 25eb01a12..09ecc0499 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -3,22 +3,16 @@
 
 // this function should square any number but instead we're going to get an error
 
-// =============> identifier not declared (unknown)
+// =============> write your prediction of the error here
 
 function square(3) {
     return num * num;
 }
 
-// =============> Unexpected number
+// =============> write the error message here
 
-// =============> the parameter shouldn't be given an argument in the function definition
+// =============> explain this error message here
 
 // Finally, correct the code to fix the problem
 
-// =============> my new code
-function square(num) {
-    return num * num;
-}
-console.log(square(3));
-
-
+// =============> write your new code here

From 177c3687417cddee17598ee568401742d626ac47 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 22:36:10 +0000
Subject: [PATCH 29/30] Update 1.js

Updated comments to clarify errors and provide explanations.
---
 Sprint-2/1-key-errors/1.js | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index cb2870c5f..f2d56151f 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -1,8 +1,7 @@
 // Predict and explain first...
 
 // Why will an error occur when this program runs?
-// =============> because first: the variable decimalNumber is declared twice
-// second: the parameter decimalNumber is assigned to a value inside the function
+// =============> write your prediction here
 
 // Try playing computer with the example to work out what is going on
 
@@ -15,13 +14,7 @@ function convertToPercentage(decimalNumber) {
 
 console.log(decimalNumber);
 
-// =============> Identifier 'decimalNumber' has already been declared is the error msg thrown by the code
+// =============> write your explanation here
 
 // Finally, correct the code to fix the problem
-// =============> 
-function convertToPercentage(decimalNumber) {
-//  const decimalNumber = 0.5; this line must be deleted
-  const percentage = `${decimalNumber * 100}%`;
-
-  return percentage;
-}
+// =============> write your new code here

From 3bb9ddf441cce7888063f86247f2cf6e8a9ba323 Mon Sep 17 00:00:00 2001
From: boladjebsoft <djebbour1985@gmail.com>
Date: Sun, 1 Mar 2026 22:47:26 +0000
Subject: [PATCH 30/30] Update 0.js

Removed duplicate variable declaration and fixed typo in return statement.
---
 Sprint-2/1-key-errors/0.js | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 39666b060..653d6f5a0 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -1,5 +1,5 @@
 // Predict and explain first...
-//  =============> the function is not going to work because a variable is declared twice (str)
+//  =============> write your prediction here
 
 // call the function capitalise with a string input
 // interpret the error message and figure out why an error is occurring
@@ -9,10 +9,5 @@ function capitalise(str) {
   return str;
 }
 
-// =============> the error message 'Identifier 'str' has already been declared', diplays because the toUpperCase function does not change the value of the varible declared 
-// but it creates a new one.
-// =============> my new code: 
-function capitalise(str) {
-  let result = `${str[0].toUpperCase()}${str.slice(1)}`;
-  return resault;
-}
+// =============> write your explanation here
+// =============> write your new code here