From 5f999c71c638591ae06e485e35b7c0d4614350d9 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sat, 14 Feb 2026 15:55:24 +0000
Subject: [PATCH 01/23] complete initials

---
 Sprint-1/1-key-exercises/2-initials.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js
index 47561f6175..0a1e1535c0 100644
--- a/Sprint-1/1-key-exercises/2-initials.js
+++ b/Sprint-1/1-key-exercises/2-initials.js
@@ -5,7 +5,7 @@ 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 = `${firstName[0]}${middleName[0]}${lastName[0]}`;
+console.log(initials);
 // https://www.google.com/search?q=get+first+character+of+string+mdn
 

From 90f27bbd225cec40103dfe73a99c340272748729 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sat, 14 Feb 2026 16:26:59 +0000
Subject: [PATCH 02/23] complete 1-count

---
 Sprint-1/1-key-exercises/1-count.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js
index 117bcb2b6e..4da442b0d1 100644
--- a/Sprint-1/1-key-exercises/1-count.js
+++ b/Sprint-1/1-key-exercises/1-count.js
@@ -1,6 +1,12 @@
 let count = 0;
 
-count = count + 1;
+// count = count + 1;
 
+// count += 1;
+
+count++;
+
+console.log(count);
 // 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
+// In line 3 they are reassign the value for count by adding count+1 and = here called assigning operator

From a5c9ea0741b54b77634f979ad6d222a2b15fd612 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 15 Feb 2026 07:40:58 +0000
Subject: [PATCH 03/23] complete paths

---
 Sprint-1/1-key-exercises/3-paths.js | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/Sprint-1/1-key-exercises/3-paths.js b/Sprint-1/1-key-exercises/3-paths.js
index ab90ebb28e..02b939925b 100644
--- a/Sprint-1/1-key-exercises/3-paths.js
+++ b/Sprint-1/1-key-exercises/3-paths.js
@@ -17,7 +17,9 @@ 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(1, lastSlashIndex);
+const lastDotIndex = filePath.lastIndexOf(".")
+const ext = filePath.slice(lastDotIndex + 1)
+console.log(dir)
+console.log(ext)
 // https://www.google.com/search?q=slice+mdn
\ No newline at end of file

From 3de2b1d93e767aa4aa4191511c4140daf1608204 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 15 Feb 2026 07:58:16 +0000
Subject: [PATCH 04/23] change the variable key word from const to let and fix
 the error

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

diff --git a/Sprint-1/2-mandatory-errors/1.js b/Sprint-1/2-mandatory-errors/1.js
index 7a43cbea76..003117be0b 100644
--- a/Sprint-1/2-mandatory-errors/1.js
+++ b/Sprint-1/2-mandatory-errors/1.js
@@ -1,4 +1,5 @@
 // trying to create an age variable and then reassign the value by 1
 
-const age = 33;
+let age = 33;
 age = age + 1;
+console.log(age)
\ No newline at end of file

From 88670e736a239784085903ee826ba4cc5fc4fabd Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 15 Feb 2026 08:10:24 +0000
Subject: [PATCH 05/23] i fix the error in this code

---
 Sprint-1/2-mandatory-errors/2.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js
index e09b89831d..b297a63e4a 100644
--- a/Sprint-1/2-mandatory-errors/2.js
+++ b/Sprint-1/2-mandatory-errors/2.js
@@ -1,5 +1,5 @@
 // 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";
+cityOfBirth = "Bolton";
+console.log(`I was born in ${cityOfBirth}`); 

From 240da0eebc4223085ecb83ba919bcdff9b54e83e Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 15 Feb 2026 08:49:07 +0000
Subject: [PATCH 06/23] Covert the number into string and fix the error

---
 Sprint-1/1-key-exercises/4-random.js | 2 +-
 Sprint-1/2-mandatory-errors/3.js     | 7 ++++++-
 2 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js
index 292f83aabb..fac9ac6f24 100644
--- a/Sprint-1/1-key-exercises/4-random.js
+++ b/Sprint-1/1-key-exercises/4-random.js
@@ -2,7 +2,7 @@ const minimum = 1;
 const maximum = 100;
 
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
-
+console.log(num);
 // In this exercise, you will need to work out what num represents?
 // 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
diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js
index ec101884db..f5b5f75f4f 100644
--- a/Sprint-1/2-mandatory-errors/3.js
+++ b/Sprint-1/2-mandatory-errors/3.js
@@ -1,5 +1,6 @@
-const cardNumber = 4533787178994213;
+const cardNumber = "4533787178994213";
 const last4Digits = cardNumber.slice(-4);
+console.log(last4Digits)
 
 // The last4Digits variable should store the last 4 digits of cardNumber
 // However, the code isn't working
@@ -7,3 +8,7 @@ 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
+
+// Slice() works on String(characters) not number
+//Numbers Don't have Indexes and strings do
+// So converting to String allowed me to cut the last 4 Digit of the card number.
\ No newline at end of file

From 1413d048d05f84f14b8a37d6639701b806a78fa5 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 15 Feb 2026 08:54:29 +0000
Subject: [PATCH 07/23] identifier cannot start with number

---
 Sprint-1/2-mandatory-errors/4.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js
index 21dad8c5d1..b83b2967fb 100644
--- a/Sprint-1/2-mandatory-errors/4.js
+++ b/Sprint-1/2-mandatory-errors/4.js
@@ -1,2 +1,4 @@
-const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
\ No newline at end of file
+const $24HourClockTime = "20:53";
+const $12hourClockTime = "08:53";
+console.log($24HourClockTime)
+console.log($12hourClockTime)
\ No newline at end of file

From ad595453b8b6ada1bb4fe848e1eed934d0218a4a Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 15 Feb 2026 08:57:42 +0000
Subject: [PATCH 08/23] error fixed

---
 Sprint-1/2-mandatory-errors/2.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js
index b297a63e4a..9c1d31a46f 100644
--- a/Sprint-1/2-mandatory-errors/2.js
+++ b/Sprint-1/2-mandatory-errors/2.js
@@ -1,5 +1,5 @@
 // Currently trying to print the string "I was born in Bolton" but it isn't working...
-// what's the error ?
+// what's the error ? Ans:They i try to prin the cityOfBirth before it was defined 
 
-cityOfBirth = "Bolton";
+const cityOfBirth = "Bolton";
 console.log(`I was born in ${cityOfBirth}`); 

From 2589dc77ddab51e2bf519443a2645c161fa59d1d Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 15 Feb 2026 08:58:05 +0000
Subject: [PATCH 09/23] good

---
 prep/test.js | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 prep/test.js

diff --git a/prep/test.js b/prep/test.js
new file mode 100644
index 0000000000..bf61e13837
--- /dev/null
+++ b/prep/test.js
@@ -0,0 +1,10 @@
+
+
+function convertToPercentage(decimalNumber) {
+  const percentage = `${decimalNumber * 100}%`;
+  return percentage;
+}
+const output1 = convertToPercentage(0.5);
+const output2 = convertToPercentage(0.231);
+console.log(output1);
+console.log(output2);

From 14c0fe347403b2514f3e13a5bb05a9d70af55d0d Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 15 Feb 2026 12:09:52 +0000
Subject: [PATCH 10/23] Fix the error and answer the question

---
 Sprint-1/2-mandatory-errors/4.js                |  3 ++-
 .../1-percentage-change.js                      | 17 ++++++++++++++---
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js
index b83b2967fb..f35a00dd5e 100644
--- a/Sprint-1/2-mandatory-errors/4.js
+++ b/Sprint-1/2-mandatory-errors/4.js
@@ -1,4 +1,5 @@
 const $24HourClockTime = "20:53";
 const $12hourClockTime = "08:53";
 console.log($24HourClockTime)
-console.log($12hourClockTime)
\ No newline at end of file
+console.log($12hourClockTime)
+//
\ No newline at end of file
diff --git a/Sprint-1/3-mandatory-interpret/1-percentage-change.js b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
index e24ecb8e18..1dc0902983 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 +12,22 @@ 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
+// 5
 
 // 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 came from line 5
+//Because arguments inside replaceAll() were not separated properly
+//After fixing the comma, the program worked
+//Output became correct (14.57)
 // c) Identify all the lines that are variable reassignment statements
-
+// line 4 and 5
 // d) Identify all the lines that are variable declarations
+ // line 1,2,7 and 8
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+ // Number(carPrice.replaceAll(",", "")) does two jobs:
+
+//replaceAll(",", "") → removes the commas from the string
+//"10,000" becomes "10000"
+//Number(...) → converts the cleaned string into a real number
+//"10000" becomes 10000

From 4982dbfbed263ac67348c81371921b2b582e4668 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Tue, 17 Feb 2026 09:15:27 +0000
Subject: [PATCH 11/23] Answer all the question

---
 Sprint-1/3-mandatory-interpret/2-time-format.js | 16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/3-mandatory-interpret/2-time-format.js b/Sprint-1/3-mandatory-interpret/2-time-format.js
index 47d2395587..fed8055188 100644
--- a/Sprint-1/3-mandatory-interpret/2-time-format.js
+++ b/Sprint-1/3-mandatory-interpret/2-time-format.js
@@ -12,14 +12,26 @@ 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
 // b) How many function calls are there?
-
+// 1
 // c) Using documentation, explain what the expression movieLength % 60 represents
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
 
+//movieLength % 60 returns the remaining seconds after converting total seconds into full minutes.
+
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
 
+//It subtracts the leftover seconds (remainingSeconds) from the total movie length (movieLength) to get the number of seconds that make up complete minutes, and then divides by 60 to convert those seconds into total minutes.
+
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
 
+//result is too general — it does not tell what the value means.
+//The variable result represents the movie running time in hours, minutes, and seconds (HH:MM:SS)
+//A better variable name would be movieRunTime or formattedRunTime.
+
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+
+//Yes, this code works for all positive integer values of movieLength.
+//It converts seconds into hours, minutes, and seconds using division and remainder.
+//For example, when movieLength = 5550, the result is 1:32:30.
\ No newline at end of file

From 0dc471cdfe4fea2a6993793a6096acbd13bab51a Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 22 Feb 2026 09:56:23 +0000
Subject: [PATCH 12/23] described the purpose and rationale behind each step

---
 Sprint-1/3-mandatory-interpret/3-to-pounds.js | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/Sprint-1/3-mandatory-interpret/3-to-pounds.js b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
index 60c9ace69a..f9e080a785 100644
--- a/Sprint-1/3-mandatory-interpret/3-to-pounds.js
+++ b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
@@ -1,9 +1,6 @@
 const penceString = "399p";
 
-const penceStringWithoutTrailingP = penceString.substring(
-  0,
-  penceString.length - 1
-);
+const penceStringWithoutTrailingP = penceString.substring(0, penceString.length - 1);
 
 const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
 const pounds = paddedPenceNumberString.substring(
@@ -25,3 +22,17 @@ console.log(`£${pounds}.${pence}`);
 
 // To begin, we can start with
 // 1. const penceString = "399p": initialises a string variable with the value "399p"
+// 2. const penceStringWithoutTrailingP = penceString.substring(0, penceString.length - 1); Here we use subString() to extracts everything except the last character.
+// 3.const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+// padStart(3, "0") ensures the string has at least 3 characters.
+// If the string is shorter than 3, zeros ("0") are added at the beginning.
+// If the string is already 3 or more characters, nothing changes.
+// padStart() ensures the code works for all pence values, including 1-digit and 2-digit numbers.
+// Without padStart(), the logic would only work correctly for numbers that already have 3 or more digits.
+// 4.const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length - 2);
+// This line used extract the pound value 3 from the padded pence string 399 . 
+// 5.const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0");
+//This line extracts the last two digits from paddedPenceNumberString by starting at length - 2 and going to the end. 
+// Then padEnd(2, "0") ensures the pence value always has two digits.
+// 6.console.log(`£${pounds}.${pence}`);
+// Here we use console.log() to print our output and merge the pound value and pence value and add pound symbol using template literals.

From a9067eb76100cd17f90fe963289413a047c6565e Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 22 Feb 2026 09:59:17 +0000
Subject: [PATCH 13/23] Answer questions about alert, prompt, and console
 behaviour in chrome.md

---
 Sprint-1/4-stretch-explore/chrome.md | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Sprint-1/4-stretch-explore/chrome.md b/Sprint-1/4-stretch-explore/chrome.md
index e7dd5feafe..65fce688a9 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 will open alert and say Hello world
 
 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?
+It Will open the prompt and asking for the input.
 What is the return value of `prompt`?
+prompt() returns a string, or empty string, or null (if Cancel is pressed).
+

From 0daa31519fd25d06e721a0d8c47756aefba86949 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 22 Feb 2026 10:24:54 +0000
Subject: [PATCH 14/23] docs: complete objects console exercise

---
 Sprint-1/4-stretch-explore/objects.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Sprint-1/4-stretch-explore/objects.md b/Sprint-1/4-stretch-explore/objects.md
index 0216dee56a..5034910b77 100644
--- a/Sprint-1/4-stretch-explore/objects.md
+++ b/Sprint-1/4-stretch-explore/objects.md
@@ -5,12 +5,25 @@ In this activity, we'll explore some additional concepts that you'll encounter i
 Open the Chrome devtools Console, type in `console.log` and then hit enter
 
 What output do you get?
+I get ƒ log() { [native code] } as my output when i type console.log and then hit enter in console.
 
 Now enter just `console` in the Console, what output do you get back?
+The output i get is console {debug: ƒ, error: ƒ, info: ƒ, log: ƒ, warn: ƒ, …}
 
 Try also entering `typeof console`
+The output i get 'object'
 
 Answer the following questions:
 
 What does `console` store?
+console does NOT store values.
+It is used to output.
+
 What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean?
+console.log is use print the output.
+console.assert if the condition is true nothing happen 
+if the condition failed it will print assertion failed.
+"."  the member access operator in JavaScript.
+it is used to connects the console object with log method.
+
+

From 3af21718a58ea8ddbb337c6b0f0f8f2706529d7a Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 22 Feb 2026 11:03:17 +0000
Subject: [PATCH 15/23] docs: break down random number expression and
 evaluation order

---
 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 fac9ac6f24..1765075e07 100644
--- a/Sprint-1/1-key-exercises/4-random.js
+++ b/Sprint-1/1-key-exercises/4-random.js
@@ -4,6 +4,17 @@ const maximum = 100;
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 console.log(num);
 // In this exercise, you will need to work out what num represents?
+// num represents random whole number between 1 to 100
+//It is generated by:
+//Creating a random decimal between 0 and 1 using Math.random()
+//Scaling it to the range 1 to 100
+//Rounding it down using Math.floor() so it becomes an integer
+
 // 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
+// Math.random() produces a random decimal number between 0 (inclusive) and 1 (exclusive). example : .10,.23 etc
+//it will never return 1
+// scale the random decimal number using multiplication with 100(maximum-minimum+1)
+//Math.floor() this method will remove the decimal part and return the nearest integer from 0 to 99 
+// +minimum will shift the range from 0 to 99  to  1 to 100.
\ No newline at end of file

From 0d90b74c6f6a428e2b107be3ecdcaedff208df4a Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 22 Feb 2026 14:44:11 +0000
Subject: [PATCH 16/23] fix: keep changes within Sprint-1 only

---
 Sprint-1/2-mandatory-errors/3.js              | 4 ++--
 Sprint-1/3-mandatory-interpret/3-to-pounds.js | 9 +++++++++
 Sprint-1/4-stretch-explore/chrome.md          | 2 +-
 3 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js
index f5b5f75f4f..e8e715135e 100644
--- a/Sprint-1/2-mandatory-errors/3.js
+++ b/Sprint-1/2-mandatory-errors/3.js
@@ -1,6 +1,6 @@
 const cardNumber = "4533787178994213";
-const last4Digits = cardNumber.slice(-4);
-console.log(last4Digits)
+const last4Digits =  cardNumber.slice(-4);
+console.log(last4Digits);
 
 // The last4Digits variable should store the last 4 digits of cardNumber
 // However, the code isn't working
diff --git a/Sprint-1/3-mandatory-interpret/3-to-pounds.js b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
index f9e080a785..7e526642a5 100644
--- a/Sprint-1/3-mandatory-interpret/3-to-pounds.js
+++ b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
@@ -22,17 +22,26 @@ console.log(`£${pounds}.${pence}`);
 
 // To begin, we can start with
 // 1. const penceString = "399p": initialises a string variable with the value "399p"
+
 // 2. const penceStringWithoutTrailingP = penceString.substring(0, penceString.length - 1); Here we use subString() to extracts everything except the last character.
+
 // 3.const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+
 // padStart(3, "0") ensures the string has at least 3 characters.
 // If the string is shorter than 3, zeros ("0") are added at the beginning.
 // If the string is already 3 or more characters, nothing changes.
 // padStart() ensures the code works for all pence values, including 1-digit and 2-digit numbers.
 // Without padStart(), the logic would only work correctly for numbers that already have 3 or more digits.
+
 // 4.const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length - 2);
+
 // This line used extract the pound value 3 from the padded pence string 399 . 
+
 // 5.const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0");
+
 //This line extracts the last two digits from paddedPenceNumberString by starting at length - 2 and going to the end. 
 // Then padEnd(2, "0") ensures the pence value always has two digits.
+
 // 6.console.log(`£${pounds}.${pence}`);
+
 // Here we use console.log() to print our output and merge the pound value and pence value and add pound symbol using template literals.
diff --git a/Sprint-1/4-stretch-explore/chrome.md b/Sprint-1/4-stretch-explore/chrome.md
index 65fce688a9..e58cc08dcd 100644
--- a/Sprint-1/4-stretch-explore/chrome.md
+++ b/Sprint-1/4-stretch-explore/chrome.md
@@ -18,5 +18,5 @@ Now try invoking the function `prompt` with a string input of `"What is your nam
 What effect does calling the `prompt` function have?
 It Will open the prompt and asking for the input.
 What is the return value of `prompt`?
-prompt() returns a string, or empty string, or null (if Cancel is pressed).
+prompt() returns a string, or empty string, or null (if Cancel is pressed). 
 

From 73c30ee17b49c5ed25807b43bd420fb3180b2108 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sun, 22 Feb 2026 14:46:59 +0000
Subject: [PATCH 17/23] fix: remove prep changes from PR

---
 prep/test.js | 10 ----------
 1 file changed, 10 deletions(-)
 delete mode 100644 prep/test.js

diff --git a/prep/test.js b/prep/test.js
deleted file mode 100644
index bf61e13837..0000000000
--- a/prep/test.js
+++ /dev/null
@@ -1,10 +0,0 @@
-
-
-function convertToPercentage(decimalNumber) {
-  const percentage = `${decimalNumber * 100}%`;
-  return percentage;
-}
-const output1 = convertToPercentage(0.5);
-const output2 = convertToPercentage(0.231);
-console.log(output1);
-console.log(output2);

From 21eed1b9e13242f78408aaa45e35701be891a4ed Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Thu, 5 Mar 2026 10:07:56 +0000
Subject: [PATCH 18/23] Fix comments and add interval notation

---
 Sprint-1/1-key-exercises/4-random.js | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js
index 1765075e07..1797d45b7a 100644
--- a/Sprint-1/1-key-exercises/4-random.js
+++ b/Sprint-1/1-key-exercises/4-random.js
@@ -4,10 +4,10 @@ const maximum = 100;
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 console.log(num);
 // In this exercise, you will need to work out what num represents?
-// num represents random whole number between 1 to 100
+// num represents random whole number in the interval [1,100]
 //It is generated by:
-//Creating a random decimal between 0 and 1 using Math.random()
-//Scaling it to the range 1 to 100
+//Creating a random decimal in the interval[0'1)] using Math.random()
+//Scaling it to in the interval [1,100]
 //Rounding it down using Math.floor() so it becomes an integer
 
 // Try breaking down the expression and using documentation to explain what it means

From 51cc2d818bdac99fe0b6b359d7153f9b296d7672 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Thu, 5 Mar 2026 10:24:38 +0000
Subject: [PATCH 19/23] Fix variable names and address review comments

---
 Sprint-1/2-mandatory-errors/4.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js
index f35a00dd5e..0e1b8959fa 100644
--- a/Sprint-1/2-mandatory-errors/4.js
+++ b/Sprint-1/2-mandatory-errors/4.js
@@ -1,5 +1,5 @@
-const $24HourClockTime = "20:53";
-const $12hourClockTime = "08:53";
+const twentyFourHourClockTime = "20:53";
+const twelveHourClockTime = "08:53";
 console.log($24HourClockTime)
 console.log($12hourClockTime)
 //
\ No newline at end of file

From d89e04362cc111a68ab35d9072f41c527d6bbb1f Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Thu, 5 Mar 2026 10:32:50 +0000
Subject: [PATCH 20/23] Fix review comments

---
 Sprint-1/4-stretch-explore/objects.md | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/4-stretch-explore/objects.md b/Sprint-1/4-stretch-explore/objects.md
index 5034910b77..d8f9bf842f 100644
--- a/Sprint-1/4-stretch-explore/objects.md
+++ b/Sprint-1/4-stretch-explore/objects.md
@@ -16,8 +16,16 @@ The output i get 'object'
 Answer the following questions:
 
 What does `console` store?
-console does NOT store values.
-It is used to output.
+The console object contains several methods (properties) such as:
+
+log
+error
+warn
+info
+debug
+assert
+
+These methods are used to print messages or information to the console.
 
 What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean?
 console.log is use print the output.

From 4602c77920d21a8723f9879ff90a7176e4f8849e Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Fri, 6 Mar 2026 08:53:24 +0000
Subject: [PATCH 21/23] fix: update console.log variable names to match renamed
 variables

---
 Sprint-1/2-mandatory-errors/4.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js
index 0e1b8959fa..c79f26af10 100644
--- a/Sprint-1/2-mandatory-errors/4.js
+++ b/Sprint-1/2-mandatory-errors/4.js
@@ -1,5 +1,5 @@
 const twentyFourHourClockTime = "20:53";
 const twelveHourClockTime = "08:53";
-console.log($24HourClockTime)
-console.log($12hourClockTime)
+console.log(twentyFourHourClockTime)
+console.log(twelveHourClockTime)
 //
\ No newline at end of file

From 77f51a4f4b4f8afec104d73b6cb9009bbb0bf459 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Fri, 6 Mar 2026 08:59:05 +0000
Subject: [PATCH 22/23] fix: extract last 4 digits using type conversion

---
 Sprint-1/2-mandatory-errors/3.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js
index e8e715135e..43f361a2d2 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 cardNumber = 4533787178994213;
+const last4Digits = Number(String(cardNumber).slice(-4));
 console.log(last4Digits);
 
 // The last4Digits variable should store the last 4 digits of cardNumber

From e6d8b17e215a7fbc07dcdea249b26d2b778e7323 Mon Sep 17 00:00:00 2001
From: Arunkumar Akilan <arunkumarakilanarun@gmail.com>
Date: Sat, 7 Mar 2026 12:13:19 +0000
Subject: [PATCH 23/23] fixed

---
 Sprint-1/2-mandatory-errors/3.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js
index 43f361a2d2..97ffc6b040 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 = Number(String(cardNumber).slice(-4));
+const cardNumber = 4533787178998761;
+const last4Digits = String(cardNumber).slice(-4);
 console.log(last4Digits);
 
 // The last4Digits variable should store the last 4 digits of cardNumber