From 237a6b1577cb71987bf00085be2bcc25fdc6a593 Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 20 Sep 2025 15:13:47 +0100
Subject: [PATCH 01/12] Correcting my answer

---
 Sprint-1/1-key-exercises/1-count.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js
index 117bcb2b6..de40c5929 100644
--- a/Sprint-1/1-key-exercises/1-count.js
+++ b/Sprint-1/1-key-exercises/1-count.js
@@ -4,3 +4,4 @@ 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
+//Line 3 taking the current value to count, then make the count to new value

From 200e06c07ba98ce2f86129b3f98948c0ea4e882d Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 27 Sep 2025 14:44:21 +0100
Subject: [PATCH 02/12] Completed Sprint 1 coursework

---
 Sprint-1/1-key-exercises/1-count.js               |  5 ++++-
 Sprint-1/1-key-exercises/2-initials.js            |  3 ++-
 Sprint-1/1-key-exercises/3-paths.js               |  8 +++++---
 Sprint-1/1-key-exercises/4-random.js              | 13 +++++++++++++
 Sprint-1/2-mandatory-errors/0.js                  |  6 +++++-
 Sprint-1/2-mandatory-errors/1.js                  |  7 +++++++
 Sprint-1/2-mandatory-errors/2.js                  |  9 +++++++++
 Sprint-1/2-mandatory-errors/3.js                  |  9 +++++++++
 Sprint-1/2-mandatory-errors/4.js                  | 10 +++++++++-
 .../3-mandatory-interpret/1-percentage-change.js  | 15 +++++++++++++++
 Sprint-1/3-mandatory-interpret/2-time-format.js   |  7 +++++++
 Sprint-1/3-mandatory-interpret/3-to-pounds.js     |  9 +++++++++
 Sprint-1/4-stretch-explore/chrome.md              |  4 ++++
 Sprint-1/4-stretch-explore/objects.md             |  4 ++++
 14 files changed, 102 insertions(+), 7 deletions(-)

diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js
index de40c5929..3986d0991 100644
--- a/Sprint-1/1-key-exercises/1-count.js
+++ b/Sprint-1/1-key-exercises/1-count.js
@@ -4,4 +4,7 @@ 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
-//Line 3 taking the current value to count, then make the count to new value
+
+Answer:
+
+//Line 3 is assignment statement,its taking the current value to count,then make the count to a new value.
\ No newline at end of file
diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js
index 47561f617..5ee11d5e5 100644
--- a/Sprint-1/1-key-exercises/2-initials.js
+++ b/Sprint-1/1-key-exercises/2-initials.js
@@ -5,7 +5,8 @@ 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 = ``;
+Answer:
+let initials = firstName.charAt(0) + middleName.charAt(0) + lastName.charAt(0);
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn
 
diff --git a/Sprint-1/1-key-exercises/3-paths.js b/Sprint-1/1-key-exercises/3-paths.js
index ab90ebb28..255e6c3d1 100644
--- a/Sprint-1/1-key-exercises/3-paths.js
+++ b/Sprint-1/1-key-exercises/3-paths.js
@@ -16,8 +16,10 @@ 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 = ;
+Anwer:
+const dir = filePath.slice(0, lastSlashIndex);
+const ext = base.slice(lastDotIndex + 1);
+console.log(`The dir part of ${filePath} is ${dir}`);
+console.log(`The ext part of ${filePath} is ${ext}`);
 
 // https://www.google.com/search?q=slice+mdn
\ No newline at end of file
diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js
index 292f83aab..53f89bb75 100644
--- a/Sprint-1/1-key-exercises/4-random.js
+++ b/Sprint-1/1-key-exercises/4-random.js
@@ -7,3 +7,16 @@ 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
+
+Answer:
+
+//num is a random number between 1 and 100.
+
+//Math.random() makes a number between 0 and 1.
+
+//times (maximum - minimum + 1) makes it bigger.
+
+//Math.floor cuts off the decimal.
+
+//+ minimum makes sure the random number starts at 1 instead of 0
+
diff --git a/Sprint-1/2-mandatory-errors/0.js b/Sprint-1/2-mandatory-errors/0.js
index cf6c5039f..4d14d2c7d 100644
--- a/Sprint-1/2-mandatory-errors/0.js
+++ b/Sprint-1/2-mandatory-errors/0.js
@@ -1,2 +1,6 @@
 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
+We don't want the computer to run these 2 lines - how can we solve this problem?
+
+Answer:
+//We can turn those lines into comments by putting // at the start.
+//Then computer ignores them but humans can still read/see them.
diff --git a/Sprint-1/2-mandatory-errors/1.js b/Sprint-1/2-mandatory-errors/1.js
index 7a43cbea7..d1cd24c47 100644
--- a/Sprint-1/2-mandatory-errors/1.js
+++ b/Sprint-1/2-mandatory-errors/1.js
@@ -2,3 +2,10 @@
 
 const age = 33;
 age = age + 1;
+
+Answer:
+
+//This gives an error because we used const, which can't be changed.
+// If we want to update the value, we should use let instead of const.
+let age = 33;
+age = age + 1;
diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js
index e09b89831..9560bcd9e 100644
--- a/Sprint-1/2-mandatory-errors/2.js
+++ b/Sprint-1/2-mandatory-errors/2.js
@@ -3,3 +3,12 @@
 
 console.log(`I was born in ${cityOfBirth}`);
 const cityOfBirth = "Bolton";
+
+
+Answer:
+
+//Error because cityOfBirth is used before it is declared.
+//We need to define the variable first, then use it.
+
+const cityOfBirth = "Bolton";
+console.log(`I was born in ${cityOfBirth}`);
diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js
index ec101884d..606c38bba 100644
--- a/Sprint-1/2-mandatory-errors/3.js
+++ b/Sprint-1/2-mandatory-errors/3.js
@@ -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
+
+Answer:
+
+//I guessed it breaks because slice is for strings but cardNumber is a number.
+//When I try it, the error says slice is not a function (so I was right).
+//Fix: change the number to string first, then slice works.
+const cardNumber = 4533787178994213;
+const last4Digits = cardNumber.toString().slice(-4);
+console.log(last4Digits); // 4213
diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js
index 21dad8c5d..98dd10aba 100644
--- a/Sprint-1/2-mandatory-errors/4.js
+++ b/Sprint-1/2-mandatory-errors/4.js
@@ -1,2 +1,10 @@
 const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
\ No newline at end of file
+const 24hourClockTime = "08:53";
+
+
+Answer:
+
+// The first line is wrong cuz variable names can't start with a number.
+// We should rename it like hour12ClockTime or something that doesn't start with a digit.
+const hour12ClockTime = "20:53";
+const hour24ClockTime = "08:53";
diff --git a/Sprint-1/3-mandatory-interpret/1-percentage-change.js b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
index e24ecb8e1..70d991a93 100644
--- a/Sprint-1/3-mandatory-interpret/1-percentage-change.js
+++ b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
@@ -12,11 +12,26 @@ 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
+carPrice = Number(carPrice.replaceAll(",", ""));
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
+console.log(`The percentage change is ${percentageChange}`);
+
 
 // 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?
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
+fix;
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
 
 // c) Identify all the lines that are variable reassignment statements
+carPrice = Number(carPrice.replaceAll(",", ""));
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
 
 // d) Identify all the lines that are variable declarations
+let carPrice = "10,000";
+let priceAfterOneYear = "8,543";
+
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+replaceAll gets rid of the commas → "10,000" becomes "10000".
+Number() turns that string into the number 10000.
+so we can do maths with it.
diff --git a/Sprint-1/3-mandatory-interpret/2-time-format.js b/Sprint-1/3-mandatory-interpret/2-time-format.js
index 47d239558..ebf1a9c67 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?
+6: movieLength, remainingSeconds, totalMinutes, remainingMinutes, totalHours, result.
 
 // b) How many function calls are there?
+Only 1 ; console.log(result);
 
 // c) Using documentation, explain what the expression movieLength % 60 represents
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
+% gives the leftover after dividing, so movieLength % 60 = extra seconds
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
+(movieLength - remainingSeconds)/60 → takes away seconds, then gets whole minutes
+
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
+It’s the time of the movie written as hours:minutes:seconds. A better name could be movieTime or formattedTime.
 
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+works for normal numbers, but long movies or single-digit mins/secs look weird
\ No newline at end of file
diff --git a/Sprint-1/3-mandatory-interpret/3-to-pounds.js b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
index 60c9ace69..6243ddf9a 100644
--- a/Sprint-1/3-mandatory-interpret/3-to-pounds.js
+++ b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
@@ -1,21 +1,30 @@
 const penceString = "399p";
+sets the price string with "p" at the end
+
 
 const penceStringWithoutTrailingP = penceString.substring(
   0,
   penceString.length - 1
 );
+//removes the p from the end
+
 
 const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
 const pounds = paddedPenceNumberString.substring(
   0,
   paddedPenceNumberString.length - 2
 );
+// makes sure it has at least 3 digits, adds 0 at start if needed
+
 
 const pence = paddedPenceNumberString
   .substring(paddedPenceNumberString.length - 2)
   .padEnd(2, "0");
+  // takes last 2 digits → pence, adds 0 at end if needed
 
 console.log(`£${pounds}.${pence}`);
+// prints the price in pounds like £3.99
+
 
 // This program takes a string representing a price in pence
 // The program then builds up a string representing the price in pounds
diff --git a/Sprint-1/4-stretch-explore/chrome.md b/Sprint-1/4-stretch-explore/chrome.md
index e7dd5feaf..ea58a5721 100644
--- a/Sprint-1/4-stretch-explore/chrome.md
+++ b/Sprint-1/4-stretch-explore/chrome.md
@@ -11,8 +11,12 @@ In the Chrome console,
 invoke the function `alert` with an input string of `"Hello world!"`;
 
 What effect does calling the `alert` function have?
+*It shows a popup message on the screen.*
 
 Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`.
 
 What effect does calling the `prompt` function have?
+*pops up a box asking you to type something*
+
 What is the return value of `prompt`?
+*whatever the user typed (as a string)*
diff --git a/Sprint-1/4-stretch-explore/objects.md b/Sprint-1/4-stretch-explore/objects.md
index 0216dee56..366db3207 100644
--- a/Sprint-1/4-stretch-explore/objects.md
+++ b/Sprint-1/4-stretch-explore/objects.md
@@ -7,10 +7,14 @@ Open the Chrome devtools Console, type in `console.log` and then hit enter
 What output do you get?
 
 Now enter just `console` in the Console, what output do you get back?
+*shows a big list of all the stuff it can do, like log, assert, and other functions*
 
 Try also entering `typeof console`
 
 Answer the following questions:
 
 What does `console` store?
+*console stores all the console functions you can use.*
+
 What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean?
+*the . means “use a function from console.*

From d50491caba472093a100000f2f53f3371ecfa559 Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 18 Oct 2025 00:09:16 +0100
Subject: [PATCH 03/12] finished my tasks

---
 Sprint-2/1-key-errors/0.js | 18 ++++++++++++++++++
 Sprint-2/1-key-errors/1.js | 25 ++++++++++++++++++++++++-
 Sprint-2/1-key-errors/2.js | 19 +++++++++++++++++++
 3 files changed, 61 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 653d6f5a0..7c8044818 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -9,5 +9,23 @@ function capitalise(str) {
   return str;
 }
 
+
 // =============> write your explanation here
 // =============> write your new code here
+
+///The error is :
+
+let str = `${str[0].toUpperCase()}${str.slice(1)}`;
+
+//str is already a parameter of the function.
+//Doing let str = ... is like giving it a new name in the same place, which JavaScript does not allow.
+//we can just use the existing str instead of declaring it again.
+
+function capitalise(str) {
+
+  // make the first letter uppercase
+
+  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 f2d56151f..62a0e70d3 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -9,12 +9,35 @@ function convertToPercentage(decimalNumber) {
   const decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
 
-  return percentage;
+  return percentage;=
 }
 
 console.log(decimalNumber);
 
 // =============> write your explanation here
 
+Answer:
+
+The number (0.5) goes into the function — that’s our decimalNumber.
+
+We use that decimalNumber to make a percent.
+
+We don’t write const decimalNumber again because we already have it.
+
+We return the answer (like "50%").
+
+Then we call the function with 0.5 and print what it gives back.
+
 // 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 aad57f7cf..c90def798 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -6,15 +6,34 @@
 // =============> write your prediction of the error here
 
 function square(3) {
+    
     return num * num;
 }
 
 // =============> write the error message here
 
+SyntaxError: Unexpected number
+
+
 // =============> explain this error message here
 
+the function takes the number we give it (3) and times it by itself.
+
+so 3 * 3 = 9.
+
+it works now cuz we used num instead of a number in the ()
+
+
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
+function square(num){
+
+    return num * num
+  }
+  
+  console.log(square(3))
+  
+
 

From 6f122b74cc00e95a8b04d11ecf7c59ce7cdf2171 Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 18 Oct 2025 07:36:01 +0100
Subject: [PATCH 04/12] Finished my tasks

---
 Sprint-2/1-key-errors/0.js      |  1 -
 Sprint-2/1-key-errors/1.js      |  1 -
 Sprint-2/1-key-errors/2.js      |  1 -
 Sprint-2/2-mandatory-debug/0.js | 12 ++++++++++++
 Sprint-2/2-mandatory-debug/1.js | 13 +++++++++++++
 Sprint-2/2-mandatory-debug/2.js | 34 +++++++++++++++++++++++++++++++++
 6 files changed, 59 insertions(+), 3 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 7c8044818..8f466e809 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -9,7 +9,6 @@ function capitalise(str) {
   return str;
 }
 
-
 // =============> write your explanation here
 // =============> write your new code here
 
diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index 62a0e70d3..8cad2edf7 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -11,7 +11,6 @@ function convertToPercentage(decimalNumber) {
 
   return percentage;=
 }
-
 console.log(decimalNumber);
 
 // =============> write your explanation here
diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index c90def798..e14f62d24 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -9,7 +9,6 @@ function square(3) {
     
     return num * num;
 }
-
 // =============> write the error message here
 
 SyntaxError: Unexpected number
diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js
index b27511b41..eadee6a4e 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -10,5 +10,17 @@ console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
 // =============> write your explanation here
 
+the function just prints the answer, it dont return it.
+
+so when we try to use it inside the message it shows 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..5a14317ae 100644
--- a/Sprint-2/2-mandatory-debug/1.js
+++ b/Sprint-2/2-mandatory-debug/1.js
@@ -9,5 +9,18 @@ function sum(a, b) {
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
 // =============> write your explanation here
+
+the code dont work cuz the return stops the code before it adds the numbers.
+
+so js never does a + b, that’s why it show undefined.
+
 // 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..376171437 100644
--- a/Sprint-2/2-mandatory-debug/2.js
+++ b/Sprint-2/2-mandatory-debug/2.js
@@ -1,11 +1,19 @@
 // Predict and explain first...
 
+it will print 3 for all of them
+
 // 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;
 
 function getLastDigit() {
+
   return num.toString().slice(-1);
 }
 
@@ -15,9 +23,35 @@ 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 2
+
+The last digit of 105 is 5
+
+The last digit of 806 is 6
+
 // Explain why the output is the way it is
 // =============> write your explanation here
+
+It always shows 3 cuz the function just uses the num at the top (103).
+
+It ignores the numbers we put in () like 42, 105, 806.
+
+We need to let the function take a number as input.
+
 // Finally, correct the code to fix the problem
+
+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)})
+
 // =============> write your new code here
 
 // This program should tell the user the last digit of each number.

From 192c85e121f1875f5225e4f4c7d18bc7af189abc Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 18 Oct 2025 08:37:08 +0100
Subject: [PATCH 05/12] Added missing const variable declaration

---
 Sprint-1/3-mandatory-interpret/1-percentage-change.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Sprint-1/3-mandatory-interpret/1-percentage-change.js b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
index 70d991a93..4574662d8 100644
--- a/Sprint-1/3-mandatory-interpret/1-percentage-change.js
+++ b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
@@ -27,11 +27,16 @@ carPrice = Number(carPrice.replaceAll(",", ""));
 priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
 
 // d) Identify all the lines that are variable declarations
+
 let carPrice = "10,000";
 let priceAfterOneYear = "8,543";
+const priceDifference = carPrice - priceAfterOneYear;
+const percentageChange = (priceDifference / carPrice) * 100;
 
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
 replaceAll gets rid of the commas → "10,000" becomes "10000".
+
 Number() turns that string into the number 10000.
+
 so we can do maths with it.

From 67ff52fbaa292474013a1fe8450d000a6b017bfe Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 18 Oct 2025 10:10:49 +0100
Subject: [PATCH 06/12] Added missing const variable declaration

---
 Sprint-1/3-mandatory-interpret/1-percentage-change.js | 2 +-
 1 file changed, 1 insertion(+), 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 4574662d8..84caa4b02 100644
--- a/Sprint-1/3-mandatory-interpret/1-percentage-change.js
+++ b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
@@ -30,10 +30,10 @@ priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
 
 let carPrice = "10,000";
 let priceAfterOneYear = "8,543";
+
 const priceDifference = carPrice - priceAfterOneYear;
 const percentageChange = (priceDifference / carPrice) * 100;
 
-
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
 replaceAll gets rid of the commas → "10,000" becomes "10000".
 

From a3f32c3c6baf57e5660cfd12ce02580f37097d32 Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 18 Oct 2025 10:12:14 +0100
Subject: [PATCH 07/12] Added missing const variable declarations

---
 Sprint-1/3-mandatory-interpret/1-percentage-change.js | 1 -
 1 file changed, 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 84caa4b02..3e298990c 100644
--- a/Sprint-1/3-mandatory-interpret/1-percentage-change.js
+++ b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
@@ -30,7 +30,6 @@ priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
 
 let carPrice = "10,000";
 let priceAfterOneYear = "8,543";
-
 const priceDifference = carPrice - priceAfterOneYear;
 const percentageChange = (priceDifference / carPrice) * 100;
 

From 80ad492b3a5df2b29fc96466888cd9c9468113ae Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 18 Oct 2025 10:12:56 +0100
Subject: [PATCH 08/12] added missing const

---
 Sprint-1/3-mandatory-interpret/1-percentage-change.js | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Sprint-1/3-mandatory-interpret/1-percentage-change.js b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
index 3e298990c..84caa4b02 100644
--- a/Sprint-1/3-mandatory-interpret/1-percentage-change.js
+++ b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
@@ -30,6 +30,7 @@ priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
 
 let carPrice = "10,000";
 let priceAfterOneYear = "8,543";
+
 const priceDifference = carPrice - priceAfterOneYear;
 const percentageChange = (priceDifference / carPrice) * 100;
 

From 6fa3bb909447fb488ca9b6994b1fb488e2e99828 Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 18 Oct 2025 12:06:46 +0100
Subject: [PATCH 09/12] Finished my tasks

---
 Sprint-2/3-mandatory-implement/1-bmi.js       | 16 ++++++++++--
 Sprint-2/3-mandatory-implement/2-cases.js     | 15 +++++++++++
 Sprint-2/3-mandatory-implement/3-to-pounds.js | 25 +++++++++++++++++++
 3 files changed, 54 insertions(+), 2 deletions(-)

diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js
index 17b1cbde1..20328da1a 100644
--- a/Sprint-2/3-mandatory-implement/1-bmi.js
+++ b/Sprint-2/3-mandatory-implement/1-bmi.js
@@ -14,6 +14,18 @@
 // Then when we call this function with the weight and height
 // It should return their Body Mass Index to 1 decimal place
 
-function calculateBMI(weight, height) {
+function calculateBmi(weight,height) {
     // return the BMI of someone based off their weight and height
-}
\ No newline at end of file
+}
+
+
+function calculateBMI (weight,height) {
+
+    let bmi = weight / (height*height)
+
+    return bmi.toFixed(1)
+
+  }
+  
+  console.log(calculateBMI(70,1.73))
+  
\ No newline at end of file
diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js
index 5b0ef77ad..767f25910 100644
--- a/Sprint-2/3-mandatory-implement/2-cases.js
+++ b/Sprint-2/3-mandatory-implement/2-cases.js
@@ -14,3 +14,18 @@
 // 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 that turns text into UPPER_SNAKE_CASE
+
+function makeUpperSnake(text) {
+
+    let newText =text.replace(/ /g,'_');
+
+    newText = newText.toUpperCase();
+
+    return newText;
+
+  }
+  console.log(makeUpperSnake("hello there"));
+  console.log(makeUpperSnake("lord of the rings"));
+  
+
diff --git a/Sprint-2/3-mandatory-implement/3-to-pounds.js b/Sprint-2/3-mandatory-implement/3-to-pounds.js
index 6265a1a70..49a148267 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -4,3 +4,28 @@
 // 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) {
+
+    let numberStr =penceString.substring(0,penceString.length -1);
+  
+    numberStr = numberStr.padStart(3,"0");
+  
+    let pounds = numberStr.substring(0, numberStr.length -2);
+  
+    let pence = numberStr.substring(numberStr.length -2).padEnd(2,"0");
+  
+    return "£" +pounds + "." +pence;
+  }
+
+console.log(toPounds("399p"));
+console.log(toPounds("50p"));
+console.log(toPounds("5p"));
+console.log(toPounds("1200p"));
+
+  
+
+

From 59316af444c163552f4d5db8df7e2be4eab358f3 Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 18 Oct 2025 12:28:03 +0100
Subject: [PATCH 10/12] Revert "Finished my tasks"

This reverts commit 6fa3bb909447fb488ca9b6994b1fb488e2e99828.
---
 Sprint-2/3-mandatory-implement/1-bmi.js       | 16 ++----------
 Sprint-2/3-mandatory-implement/2-cases.js     | 15 -----------
 Sprint-2/3-mandatory-implement/3-to-pounds.js | 25 -------------------
 3 files changed, 2 insertions(+), 54 deletions(-)

diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js
index 20328da1a..17b1cbde1 100644
--- a/Sprint-2/3-mandatory-implement/1-bmi.js
+++ b/Sprint-2/3-mandatory-implement/1-bmi.js
@@ -14,18 +14,6 @@
 // Then when we call this function with the weight and height
 // It should return their Body Mass Index to 1 decimal place
 
-function calculateBmi(weight,height) {
+function calculateBMI(weight, height) {
     // return the BMI of someone based off their weight and height
-}
-
-
-function calculateBMI (weight,height) {
-
-    let bmi = weight / (height*height)
-
-    return bmi.toFixed(1)
-
-  }
-  
-  console.log(calculateBMI(70,1.73))
-  
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js
index 767f25910..5b0ef77ad 100644
--- a/Sprint-2/3-mandatory-implement/2-cases.js
+++ b/Sprint-2/3-mandatory-implement/2-cases.js
@@ -14,18 +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 that turns text into UPPER_SNAKE_CASE
-
-function makeUpperSnake(text) {
-
-    let newText =text.replace(/ /g,'_');
-
-    newText = newText.toUpperCase();
-
-    return newText;
-
-  }
-  console.log(makeUpperSnake("hello there"));
-  console.log(makeUpperSnake("lord of the rings"));
-  
-
diff --git a/Sprint-2/3-mandatory-implement/3-to-pounds.js b/Sprint-2/3-mandatory-implement/3-to-pounds.js
index 49a148267..6265a1a70 100644
--- a/Sprint-2/3-mandatory-implement/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js
@@ -4,28 +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) {
-
-    let numberStr =penceString.substring(0,penceString.length -1);
-  
-    numberStr = numberStr.padStart(3,"0");
-  
-    let pounds = numberStr.substring(0, numberStr.length -2);
-  
-    let pence = numberStr.substring(numberStr.length -2).padEnd(2,"0");
-  
-    return "£" +pounds + "." +pence;
-  }
-
-console.log(toPounds("399p"));
-console.log(toPounds("50p"));
-console.log(toPounds("5p"));
-console.log(toPounds("1200p"));
-
-  
-
-

From df8c275ba8ac2a4dcdadf47ddb22cf1ddf0363ed Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 18 Oct 2025 12:52:16 +0100
Subject: [PATCH 11/12] Undo changes in sprint2

This reverts commit 6f122b74cc00e95a8b04d11ecf7c59ce7cdf2171.
---
 Sprint-2/1-key-errors/0.js      |  1 +
 Sprint-2/1-key-errors/1.js      |  1 +
 Sprint-2/1-key-errors/2.js      |  1 +
 Sprint-2/2-mandatory-debug/0.js | 12 ------------
 Sprint-2/2-mandatory-debug/1.js | 13 -------------
 Sprint-2/2-mandatory-debug/2.js | 34 ---------------------------------
 6 files changed, 3 insertions(+), 59 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 8f466e809..7c8044818 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -9,6 +9,7 @@ function capitalise(str) {
   return str;
 }
 
+
 // =============> write your explanation here
 // =============> write your new code here
 
diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js
index 8cad2edf7..62a0e70d3 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -11,6 +11,7 @@ function convertToPercentage(decimalNumber) {
 
   return percentage;=
 }
+
 console.log(decimalNumber);
 
 // =============> write your explanation here
diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js
index e14f62d24..c90def798 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -9,6 +9,7 @@ function square(3) {
     
     return num * num;
 }
+
 // =============> write the error message here
 
 SyntaxError: Unexpected number
diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js
index eadee6a4e..b27511b41 100644
--- a/Sprint-2/2-mandatory-debug/0.js
+++ b/Sprint-2/2-mandatory-debug/0.js
@@ -10,17 +10,5 @@ console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
 // =============> write your explanation here
 
-the function just prints the answer, it dont return it.
-
-so when we try to use it inside the message it shows 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 5a14317ae..37cedfbcf 100644
--- a/Sprint-2/2-mandatory-debug/1.js
+++ b/Sprint-2/2-mandatory-debug/1.js
@@ -9,18 +9,5 @@ function sum(a, b) {
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
 // =============> write your explanation here
-
-the code dont work cuz the return stops the code before it adds the numbers.
-
-so js never does a + b, that’s why it show undefined.
-
 // 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 376171437..57d3f5dc3 100644
--- a/Sprint-2/2-mandatory-debug/2.js
+++ b/Sprint-2/2-mandatory-debug/2.js
@@ -1,19 +1,11 @@
 // Predict and explain first...
 
-it will print 3 for all of them
-
 // 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;
 
 function getLastDigit() {
-
   return num.toString().slice(-1);
 }
 
@@ -23,35 +15,9 @@ 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 2
-
-The last digit of 105 is 5
-
-The last digit of 806 is 6
-
 // Explain why the output is the way it is
 // =============> write your explanation here
-
-It always shows 3 cuz the function just uses the num at the top (103).
-
-It ignores the numbers we put in () like 42, 105, 806.
-
-We need to let the function take a number as input.
-
 // Finally, correct the code to fix the problem
-
-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)})
-
 // =============> write your new code here
 
 // This program should tell the user the last digit of each number.

From 4d0c91de7586a4c72e81790cb1bcf28a41de67a5 Mon Sep 17 00:00:00 2001
From: Shayida <shayida914@gmail.com>
Date: Sat, 18 Oct 2025 12:53:51 +0100
Subject: [PATCH 12/12] Revert "finished my tasks"

This reverts commit d50491caba472093a100000f2f53f3371ecfa559.
---
 Sprint-2/1-key-errors/0.js | 18 ------------------
 Sprint-2/1-key-errors/1.js | 25 +------------------------
 Sprint-2/1-key-errors/2.js | 19 -------------------
 3 files changed, 1 insertion(+), 61 deletions(-)

diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js
index 7c8044818..653d6f5a0 100644
--- a/Sprint-2/1-key-errors/0.js
+++ b/Sprint-2/1-key-errors/0.js
@@ -9,23 +9,5 @@ function capitalise(str) {
   return str;
 }
 
-
 // =============> write your explanation here
 // =============> write your new code here
-
-///The error is :
-
-let str = `${str[0].toUpperCase()}${str.slice(1)}`;
-
-//str is already a parameter of the function.
-//Doing let str = ... is like giving it a new name in the same place, which JavaScript does not allow.
-//we can just use the existing str instead of declaring it again.
-
-function capitalise(str) {
-
-  // make the first letter uppercase
-
-  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 62a0e70d3..f2d56151f 100644
--- a/Sprint-2/1-key-errors/1.js
+++ b/Sprint-2/1-key-errors/1.js
@@ -9,35 +9,12 @@ function convertToPercentage(decimalNumber) {
   const decimalNumber = 0.5;
   const percentage = `${decimalNumber * 100}%`;
 
-  return percentage;=
+  return percentage;
 }
 
 console.log(decimalNumber);
 
 // =============> write your explanation here
 
-Answer:
-
-The number (0.5) goes into the function — that’s our decimalNumber.
-
-We use that decimalNumber to make a percent.
-
-We don’t write const decimalNumber again because we already have it.
-
-We return the answer (like "50%").
-
-Then we call the function with 0.5 and print what it gives back.
-
 // 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 c90def798..aad57f7cf 100644
--- a/Sprint-2/1-key-errors/2.js
+++ b/Sprint-2/1-key-errors/2.js
@@ -6,34 +6,15 @@
 // =============> write your prediction of the error here
 
 function square(3) {
-    
     return num * num;
 }
 
 // =============> write the error message here
 
-SyntaxError: Unexpected number
-
-
 // =============> explain this error message here
 
-the function takes the number we give it (3) and times it by itself.
-
-so 3 * 3 = 9.
-
-it works now cuz we used num instead of a number in the ()
-
-
 // Finally, correct the code to fix the problem
 
 // =============> write your new code here
 
-function square(num){
-
-    return num * num
-  }
-  
-  console.log(square(3))
-  
-