From c1063767aa812846d42c2189990eac0802b7e3a6 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 03:57:37 +0000
Subject: [PATCH 01/18] Sprint 1: start learning log

---
 Sprint-1/notes/learning-log.md | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 Sprint-1/notes/learning-log.md

diff --git a/Sprint-1/notes/learning-log.md b/Sprint-1/notes/learning-log.md
new file mode 100644
index 0000000000..43fab0706a
--- /dev/null
+++ b/Sprint-1/notes/learning-log.md
@@ -0,0 +1,13 @@
+# Sprint 1 — Learning Log
+
+## What I learned
+- Started Sprint 1 exercises and set up coursework branch
+
+## Errors I hit and what they mean
+- 
+
+## Docs I used (links)
+- 
+
+## Questions for class
+- 
\ No newline at end of file

From 21f7d70f4e2902a4e2288dcb4fce17eebcdcf230 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 04:13:02 +0000
Subject: [PATCH 02/18] Sprint 1 exercises: explain assignment in 1-count.js

---
 Sprint-1/1-key-exercises/1-count.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js
index 117bcb2b6e..ea3bba9473 100644
--- a/Sprint-1/1-key-exercises/1-count.js
+++ b/Sprint-1/1-key-exercises/1-count.js
@@ -2,5 +2,10 @@ let count = 0;
 
 count = count + 1;
 
+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
+
+// Line 3 takes the current value of count (0), adds 1 to it,
+// and assigns the result (1) back to the count variable using =.
\ No newline at end of file

From 39c0fc629c8638b100416f56a5086211a232b943 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 04:24:20 +0000
Subject: [PATCH 03/18] Sprint 1 exercises: complete 2-initials.js and log
 redeclaration error

---
 Sprint-1/1-key-exercises/2-initials.js | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js
index 47561f6175..5144635ae0 100644
--- a/Sprint-1/1-key-exercises/2-initials.js
+++ b/Sprint-1/1-key-exercises/2-initials.js
@@ -5,7 +5,16 @@ 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 = ``;
+
+// Solution logic
+
+// We want to combine those characters into one string.
+
+// So we concatenate:
+
+let initials = firstName[0] + middleName[0] + lastName[0];
+console.log(initials);
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn
 

From df378aabe44e9695ef57293e6fe99c4c55837172 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 04:46:37 +0000
Subject: [PATCH 04/18] Sprint 1 exercises: complete 3-paths.js using slice and
 lastIndexOf

---
 Sprint-1/1-key-exercises/3-paths.js | 12 ++++++++++--
 Sprint-1/notes/learning-log.md      |  1 +
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/1-key-exercises/3-paths.js b/Sprint-1/1-key-exercises/3-paths.js
index ab90ebb28e..1076cacc4b 100644
--- a/Sprint-1/1-key-exercises/3-paths.js
+++ b/Sprint-1/1-key-exercises/3-paths.js
@@ -17,7 +17,15 @@ 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 = ;
+//const ext = ;
+
+const dir = filePath.slice(0, lastSlashIndex);
+
+const lastDotIndex = filePath.lastIndexOf(".");
+const ext = filePath.slice(lastDotIndex);
+
+console.log(`Dir: ${dir}`);
+console.log(`Ext: ${ext}`);
 
 // https://www.google.com/search?q=slice+mdn
\ No newline at end of file
diff --git a/Sprint-1/notes/learning-log.md b/Sprint-1/notes/learning-log.md
index 43fab0706a..976b978276 100644
--- a/Sprint-1/notes/learning-log.md
+++ b/Sprint-1/notes/learning-log.md
@@ -2,6 +2,7 @@
 
 ## What I learned
 - Started Sprint 1 exercises and set up coursework branch
+- Learned how to extract directory and extension from a file path using lastIndexOf and slice.
 
 ## Errors I hit and what they mean
 - 

From 58524cdb4cd14f73f06a8fa6e3a6c422bc06fc7d Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 05:15:44 +0000
Subject: [PATCH 05/18] Sprint 1 exercises: complete 4-random.js with
 explanation

---
 Sprint-1/1-key-exercises/4-random.js | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js
index 292f83aabb..f6677159bb 100644
--- a/Sprint-1/1-key-exercises/4-random.js
+++ b/Sprint-1/1-key-exercises/4-random.js
@@ -3,7 +3,10 @@ const maximum = 100;
 
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 
-// 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
-// Try logging the value of num and running the program several times to build an idea of what the program is doing
+console.log(num);
+
+// num is a random integer between 1 and 100 (inclusive).
+// Math.random() returns a decimal in the range [0, 1).
+// Multiplying by (maximum - minimum + 1) scales it to the size of the range.
+// Math.floor(...) converts it to an integer.
+// Adding minimum shifts the range to start at 1 instead of 0.
\ No newline at end of file

From 1dae459d7659598514ab255c68d2e7a67ed89b2f Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 21:15:28 +0000
Subject: [PATCH 06/18] Sprint 1 learning log update

---
 Sprint-1/notes/learning-log.md | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Sprint-1/notes/learning-log.md b/Sprint-1/notes/learning-log.md
index 976b978276..61caf57c20 100644
--- a/Sprint-1/notes/learning-log.md
+++ b/Sprint-1/notes/learning-log.md
@@ -3,9 +3,11 @@
 ## What I learned
 - Started Sprint 1 exercises and set up coursework branch
 - Learned how to extract directory and extension from a file path using lastIndexOf and slice.
+- How Math.random(), Math.floor(), and arithmetic combine to generate a random integer in a range
+
+
+## Errors I hit and what they mean## What I learned
 
-## Errors I hit and what they mean
-- 
 
 ## Docs I used (links)
 - 

From c9913f573c72ce69d81ba70cd57ee915364c1759 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 21:33:28 +0000
Subject: [PATCH 07/18] Sprint 1 errors: explain 0.js syntax error

---
 Sprint-1/2-mandatory-errors/answers.md | 29 ++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)
 create mode 100644 Sprint-1/2-mandatory-errors/answers.md

diff --git a/Sprint-1/2-mandatory-errors/answers.md b/Sprint-1/2-mandatory-errors/answers.md
new file mode 100644
index 0000000000..12573f8000
--- /dev/null
+++ b/Sprint-1/2-mandatory-errors/answers.md
@@ -0,0 +1,29 @@
+# Sprint 1 — Mandatory Errors (Explanations)
+
+## 0.js
+- Error shown:
+- Why it happens:
+- MDN link (optional):
+- Error shown: `SyntaxError: Unexpected identifier 'is'` on line 1.
+- Why it happens: The file begins with plain English text that is not inside a comment or a quoted string. Node tries to interpret it as JavaScript code, but `This is ...` is not valid JS syntax, so parsing fails.
+- MDN link (optional): https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Unexpected_token
+
+## 1.js
+- Error shown:
+- Why it happens:
+- MDN link (optional):
+
+## 2.js
+- Error shown:
+- Why it happens:
+- MDN link (optional):
+
+## 3.js
+- Error shown:
+- Why it happens:
+- MDN link (optional):
+
+## 4.js
+- Error shown:
+- Why it happens:
+- MDN link (optional):
\ No newline at end of file

From 723da0ccc3189294ec23b661737dab66637bf6a2 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 21:40:28 +0000
Subject: [PATCH 08/18] Sprint 1 errors: explain 1.js const reassignment error

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

diff --git a/Sprint-1/2-mandatory-errors/answers.md b/Sprint-1/2-mandatory-errors/answers.md
index 12573f8000..80a1909382 100644
--- a/Sprint-1/2-mandatory-errors/answers.md
+++ b/Sprint-1/2-mandatory-errors/answers.md
@@ -12,6 +12,9 @@
 - Error shown:
 - Why it happens:
 - MDN link (optional):
+- Error shown: `TypeError: Assignment to constant variable.` on line 4.
+- Why it happens: The variable `age` was declared with `const`, which prevents reassignment. The statement `age = age + 1` attempts to update the value, causing the error.
+- MDN link (optional): https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/const
 
 ## 2.js
 - Error shown:

From 245bf0fe4882fdcf0f4cdaad8e32ec4b57eb7692 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 21:44:15 +0000
Subject: [PATCH 09/18] Sprint 1 errors: explain 2.js temporal dead zone error

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

diff --git a/Sprint-1/2-mandatory-errors/answers.md b/Sprint-1/2-mandatory-errors/answers.md
index 80a1909382..afdd254431 100644
--- a/Sprint-1/2-mandatory-errors/answers.md
+++ b/Sprint-1/2-mandatory-errors/answers.md
@@ -20,6 +20,10 @@
 - Error shown:
 - Why it happens:
 - MDN link (optional):
+- Error shown: `ReferenceError: Cannot access 'cityOfBirth' before initialization`.
+- Why it happens: The variable `cityOfBirth` is declared later in the file using `let` or `const`, but it is used before that declaration. JavaScript does not allow access to `let`/`const` variables before initialization (temporal dead zone).
+- MDN link: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Cant_access_lexical_declaration_before_init
+
 
 ## 3.js
 - Error shown:

From 4582d8065883466c93b2029c528df3918afe66eb Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 21:46:05 +0000
Subject: [PATCH 10/18] Sprint 1 errors: explain 3.js slice type error

---
 Sprint-1/2-mandatory-errors/answers.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/Sprint-1/2-mandatory-errors/answers.md b/Sprint-1/2-mandatory-errors/answers.md
index afdd254431..0319bbff2d 100644
--- a/Sprint-1/2-mandatory-errors/answers.md
+++ b/Sprint-1/2-mandatory-errors/answers.md
@@ -29,6 +29,13 @@
 - Error shown:
 - Why it happens:
 - MDN link (optional):
+### 3.js
+
+- Error shown: `TypeError: cardNumber.slice is not a function`
+- Why it happens: The variable `cardNumber` is a number, and numbers do not have the `slice()` method. The `slice()` method is only available on strings and arrays.
+- Concept: Methods depend on data types in JavaScript.
+- MDN link: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/slice
+
 
 ## 4.js
 - Error shown:

From 3430d65adcdd16fcfba443ea9f50887f1d98b4f8 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 21:49:21 +0000
Subject: [PATCH 11/18] Sprint 1 errors: explain 4.js identifier syntax error

---
 Sprint-1/2-mandatory-errors/answers.md | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/2-mandatory-errors/answers.md b/Sprint-1/2-mandatory-errors/answers.md
index 0319bbff2d..4417f3797c 100644
--- a/Sprint-1/2-mandatory-errors/answers.md
+++ b/Sprint-1/2-mandatory-errors/answers.md
@@ -40,4 +40,10 @@
 ## 4.js
 - Error shown:
 - Why it happens:
-- MDN link (optional):
\ No newline at end of file
+- MDN link (optional):
+### 4.js
+
+- Error shown: `SyntaxError: Invalid or unexpected token`
+- Why it happens: The variable name `12HourClockTime` starts with a number. JavaScript identifiers cannot begin with a digit, so the parser throws a syntax error.
+- Concept: Variable naming rules (identifiers must start with a letter, `_`, or `$`)
+- MDN link: https://developer.mozilla.org/en-US/docs/Glossary/Identifier
\ No newline at end of file

From e1e4a8507718f4996e2d1f0205e6cf13ba095f04 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 22:35:58 +0000
Subject: [PATCH 12/18] Sprint 1 interpret: notes for 1-percentage-change

---
 Sprint-1/3-mandatory-interpret/answers.md | 66 +++++++++++++++++++++++
 1 file changed, 66 insertions(+)
 create mode 100644 Sprint-1/3-mandatory-interpret/answers.md

diff --git a/Sprint-1/3-mandatory-interpret/answers.md b/Sprint-1/3-mandatory-interpret/answers.md
new file mode 100644
index 0000000000..c06b268fcb
--- /dev/null
+++ b/Sprint-1/3-mandatory-interpret/answers.md
@@ -0,0 +1,66 @@
+# Sprint 1 — Mandatory Interpret (Notes)
+
+## 1-percentage-change.js
+- What the program does:
+- Inputs:
+- Output:
+- Unfamiliar syntax (with link):
+- What I changed / why:
+
+
+## 2-time-format.js
+- What the program does:
+- Inputs:
+- Output:
+- Unfamiliar syntax (with link):
+- What I changed / why:
+
+## 3-to-pounds.js
+- What the program does:
+- Inputs:
+- Output:
+- Unfamiliar syntax (with link):
+- What I changed / why:
+
+
+## 1-percentage-change.js
+
+### a) How many function calls are there?
+There are 5 function calls:
+- Number(carPrice.replaceAll(",", ""))
+- carPrice.replaceAll(",", "")
+- Number(priceAfterOneYear.replaceAll(",", ""))
+- priceAfterOneYear.replaceAll(",", "")
+- console.log(...)
+
+---
+
+### b) Where did the error occur and why?
+The error occurred on the line:
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
+
+The replaceAll function was missing a comma between its arguments. The correct syntax requires two arguments: replaceAll(search, replacement).
+
+Fix:
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
+
+---
+
+### c) Variable reassignment statements
+- carPrice = Number(carPrice.replaceAll(",", ""))
+- priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""))
+
+---
+
+### d) Variable declarations
+- let carPrice = "10,000"
+- let priceAfterOneYear = "8,543"
+- const priceDifference = carPrice - priceAfterOneYear
+- const percentageChange = (priceDifference / carPrice) * 100
+
+---
+
+### e) What does Number(carPrice.replaceAll(",", "")) do?
+First, replaceAll(",", "") removes commas from the string "10,000", producing "10000".
+Then, Number(...) converts the string "10000" into the numeric value 10000.
+This ensures arithmetic operations can be performed correctly.
\ No newline at end of file

From 096e7220c4db07f4b01b9f0fbcabcb60f38f5bfb Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 22:54:16 +0000
Subject: [PATCH 13/18] Sprint 1 interpret: complete 2-time-format

---
 Sprint-1/3-mandatory-interpret/answers.md | 52 ++++++++++++++++++++++-
 1 file changed, 51 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/3-mandatory-interpret/answers.md b/Sprint-1/3-mandatory-interpret/answers.md
index c06b268fcb..50a94c36db 100644
--- a/Sprint-1/3-mandatory-interpret/answers.md
+++ b/Sprint-1/3-mandatory-interpret/answers.md
@@ -63,4 +63,54 @@ priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
 ### e) What does Number(carPrice.replaceAll(",", "")) do?
 First, replaceAll(",", "") removes commas from the string "10,000", producing "10000".
 Then, Number(...) converts the string "10000" into the numeric value 10000.
-This ensures arithmetic operations can be performed correctly.
\ No newline at end of file
+This ensures arithmetic operations can be performed correctly.
+
+
+
+## 2-time-format.js
+
+### a) How many variable declarations?
+There are 6 variable declarations:
+- movieLength
+- remainingSeconds
+- totalMinutes
+- remainingMinutes
+- totalHours
+- result
+
+---
+
+### b) How many function calls?
+There is 1 function call:
+- console.log(result)
+
+---
+
+### c) What does movieLength % 60 represent?
+The % operator returns the remainder after division.
+movieLength % 60 gives the number of seconds left after converting full minutes.
+In this example, it returns 24 seconds.
+
+---
+
+### d) Interpret line 4 (totalMinutes)
+const totalMinutes = (movieLength - remainingSeconds) / 60;
+
+This subtracts the leftover seconds from the total seconds and divides by 60.
+The result is the total number of full minutes in the movie.
+
+---
+
+### e) What does result represent? Better name?
+The variable result represents the formatted movie duration in hours:minutes:seconds.
+A better name could be:
+- formattedTime
+- movieDuration
+- durationString
+
+---
+
+### f) Will this work for all values of movieLength?
+Yes, it works for any positive number of seconds.
+However, if movieLength is negative, a decimal, or not a number, the result would be incorrect.
+Also, minutes and seconds are not padded with leading zeros, so values like 2:3:5 may appear instead of 02:03:05.
\ No newline at end of file

From 0b6948d6e7af9b9681b88b5e33dc3e4dd5ec51b3 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 23:02:42 +0000
Subject: [PATCH 14/18] Sprint 1 interpret: complete 3-to-pounds breakdown

---
 Sprint-1/3-mandatory-interpret/answers.md | 43 ++++++++++++++++++++++-
 1 file changed, 42 insertions(+), 1 deletion(-)

diff --git a/Sprint-1/3-mandatory-interpret/answers.md b/Sprint-1/3-mandatory-interpret/answers.md
index 50a94c36db..050a3ee63e 100644
--- a/Sprint-1/3-mandatory-interpret/answers.md
+++ b/Sprint-1/3-mandatory-interpret/answers.md
@@ -113,4 +113,45 @@ A better name could be:
 ### f) Will this work for all values of movieLength?
 Yes, it works for any positive number of seconds.
 However, if movieLength is negative, a decimal, or not a number, the result would be incorrect.
-Also, minutes and seconds are not padded with leading zeros, so values like 2:3:5 may appear instead of 02:03:05.
\ No newline at end of file
+Also, minutes and seconds are not padded with leading zeros, so values like 2:3:5 may appear instead of 02:03:05.
+
+
+
+
+## 3-to-pounds.js
+
+### Step-by-step breakdown (line by line)
+
+1) `const penceString = "399p";`
+- Declares a string containing a price in pence, with a trailing `p` character.
+
+2) `const penceStringWithoutTrailingP = penceString.substring(0, penceString.length - 1);`
+- Takes a substring from index 0 up to (but not including) the last character.
+- Purpose: remove the trailing `"p"`.
+- For `"399p"`, this becomes `"399"`.
+
+3) `const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");`
+- Pads the string on the left until it is at least length 3, using `"0"`.
+- Purpose: make sure we always have enough digits to represent pounds + pence.
+- Example: `"5"` becomes `"005"`, `"50"` becomes `"050"`, `"399"` stays `"399"`.
+
+4) `const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length - 2);`
+- Takes everything except the last 2 digits.
+- Purpose: the part before the last 2 digits is the pounds.
+- For `"399"`, length is 3, so substring(0, 1) → `"3"`.
+
+5) `const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0");`
+- First, `substring(length - 2)` takes the last 2 digits.
+- Then `padEnd(2, "0")` ensures it’s at least 2 characters (adds zeros on the right if needed).
+- Purpose: get exactly two pence digits.
+- For `"399"`, last two digits are `"99"` → stays `"99"`.
+
+6) `console.log(\`£${pounds}.${pence}\`);`
+- Uses a template literal to format the final currency string as pounds and pence.
+- For pounds `"3"` and pence `"99"` → outputs `£3.99`.
+
+### Unfamiliar syntax (docs)
+- substring: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/substring
+- padStart: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padStart
+- padEnd: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/padEnd
+- template literals: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals
\ No newline at end of file

From 1749f57c9ed8a9c5ac4fb8189d9b3e05e0eb4806 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 23:26:06 +0000
Subject: [PATCH 15/18] Sprint 1 stretch: chrome console object exploration

---
 Sprint-1/4-stretch-explore/answers.md | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 Sprint-1/4-stretch-explore/answers.md

diff --git a/Sprint-1/4-stretch-explore/answers.md b/Sprint-1/4-stretch-explore/answers.md
new file mode 100644
index 0000000000..38a6bf2bbc
--- /dev/null
+++ b/Sprint-1/4-stretch-explore/answers.md
@@ -0,0 +1,25 @@
+## chrome.md
+
+### What the task asked me to do
+Explore the Chrome DevTools console and investigate what the console object stores and how dot notation works.
+
+---
+
+### What I did (steps)
+1. Opened Chrome DevTools and navigated to the Console tab.
+2. Entered `console.log` and observed that it returned a function.
+3. Entered `console` and observed that it returned an object with multiple methods such as log, warn, error, and assert.
+4. Entered `typeof console` and confirmed that console is an object.
+
+---
+
+### What I learned
+- `console` stores an object containing many methods used for debugging.
+- `console.log`, `console.assert`, etc. are functions stored inside the console object.
+- The `.` operator is called dot notation and is used to access properties or methods of an object.
+
+---
+
+### Useful links
+- https://developer.mozilla.org/en-US/docs/Web/API/Console
+- https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects
\ No newline at end of file

From e8f5887acdc07483f9869d721dc8ef6c74183a70 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 23:31:51 +0000
Subject: [PATCH 16/18] Sprint 1 stretch: object exploration notes

---
 Sprint-1/4-stretch-explore/answers.md | 47 +++++++++++++++++++++++++++
 1 file changed, 47 insertions(+)

diff --git a/Sprint-1/4-stretch-explore/answers.md b/Sprint-1/4-stretch-explore/answers.md
index 38a6bf2bbc..ca6d6cfdd6 100644
--- a/Sprint-1/4-stretch-explore/answers.md
+++ b/Sprint-1/4-stretch-explore/answers.md
@@ -20,6 +20,53 @@ Explore the Chrome DevTools console and investigate what the console object stor
 
 ---
 
+### Useful links
+- https://developer.mozilla.org/en-US/docs/Web/API/Console
+- https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects
+
+
+
+## objects.md
+
+### What output did I get?
+
+- `console.log` → returned a function definition (ƒ log() { [native code] })
+- `console` → returned an object with many methods such as log, warn, error, assert
+- `typeof console` → returned "object"
+
+---
+
+### What does `console` store?
+The console variable stores an object that contains multiple debugging methods. These methods allow developers to print messages, warnings, errors, and other diagnostic information in the browser console.
+
+---
+
+### What does `console.log` or `console.assert` mean?
+These expressions use dot notation to access methods inside the console object.
+For example:
+- `console.log` accesses the log function
+- `console.assert` accesses the assert function
+
+---
+
+### What does the `.` mean?
+The dot operator is called dot notation.
+It is used to access properties or methods of an object.
+
+So:
+- `console` is the object
+- `log` is a method inside that object
+- `console.log` means "access the log method from the console object"
+
+---
+
+### What I learned
+- Objects store related data and functions together
+- The browser console itself is an object
+- Dot notation is how we interact with object properties and methods
+
+---
+
 ### Useful links
 - https://developer.mozilla.org/en-US/docs/Web/API/Console
 - https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Working_with_objects
\ No newline at end of file

From 82a4cf17fcae223cc6da06198bf211d183a91a67 Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Wed, 25 Feb 2026 23:53:48 +0000
Subject: [PATCH 17/18] Sprint 1 interpret: fix percentage-change syntax and
 tidy notes

---
 Sprint-1/3-mandatory-interpret/1-percentage-change.js | 3 +--
 Sprint-1/3-mandatory-interpret/2-time-format.js       | 2 +-
 Sprint-1/3-mandatory-interpret/answers.md             | 2 --
 3 files changed, 2 insertions(+), 5 deletions(-)

diff --git a/Sprint-1/3-mandatory-interpret/1-percentage-change.js b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
index e24ecb8e18..ede0f73e61 100644
--- a/Sprint-1/3-mandatory-interpret/1-percentage-change.js
+++ b/Sprint-1/3-mandatory-interpret/1-percentage-change.js
@@ -2,8 +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;
 
diff --git a/Sprint-1/3-mandatory-interpret/2-time-format.js b/Sprint-1/3-mandatory-interpret/2-time-format.js
index 47d2395587..85efdba757 100644
--- a/Sprint-1/3-mandatory-interpret/2-time-format.js
+++ b/Sprint-1/3-mandatory-interpret/2-time-format.js
@@ -22,4 +22,4 @@ console.log(result);
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
 
-// f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+// f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
\ No newline at end of file
diff --git a/Sprint-1/3-mandatory-interpret/answers.md b/Sprint-1/3-mandatory-interpret/answers.md
index 050a3ee63e..f0ae4cdafe 100644
--- a/Sprint-1/3-mandatory-interpret/answers.md
+++ b/Sprint-1/3-mandatory-interpret/answers.md
@@ -120,8 +120,6 @@ Also, minutes and seconds are not padded with leading zeros, so values like 2:3:
 
 ## 3-to-pounds.js
 
-### Step-by-step breakdown (line by line)
-
 1) `const penceString = "399p";`
 - Declares a string containing a price in pence, with a trailing `p` character.
 

From bb9e9015acf6da23507be81797abccee19ef035b Mon Sep 17 00:00:00 2001
From: Richard Frimpong <richardfrimpongalx@gmail.com>
Date: Fri, 13 Mar 2026 01:19:59 +0000
Subject: [PATCH 18/18] Address mentor feedback: clarify increment operation
 and explain padEnd is unnecessary

---
 Sprint-1/1-key-exercises/1-count.js       | 11 +++++------
 Sprint-1/3-mandatory-interpret/answers.md |  9 +++++----
 2 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js
index ea3bba9473..b87b95a4f5 100644
--- a/Sprint-1/1-key-exercises/1-count.js
+++ b/Sprint-1/1-key-exercises/1-count.js
@@ -1,11 +1,10 @@
+// This script shows how a counter changes step by step.
+
 let count = 0;
 
+// Line 3 increments the current value of count by 1.
+// It takes the current value of count (0), adds 1 to it,
+// and assigns the result (1) back to the count variable.
 count = count + 1;
 
 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
-
-// Line 3 takes the current value of count (0), adds 1 to it,
-// and assigns the result (1) back to the count variable using =.
\ No newline at end of file
diff --git a/Sprint-1/3-mandatory-interpret/answers.md b/Sprint-1/3-mandatory-interpret/answers.md
index f0ae4cdafe..25b00d0c26 100644
--- a/Sprint-1/3-mandatory-interpret/answers.md
+++ b/Sprint-1/3-mandatory-interpret/answers.md
@@ -139,10 +139,11 @@ Also, minutes and seconds are not padded with leading zeros, so values like 2:3:
 - For `"399"`, length is 3, so substring(0, 1) → `"3"`.
 
 5) `const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0");`
-- First, `substring(length - 2)` takes the last 2 digits.
-- Then `padEnd(2, "0")` ensures it’s at least 2 characters (adds zeros on the right if needed).
-- Purpose: get exactly two pence digits.
-- For `"399"`, last two digits are `"99"` → stays `"99"`.
+- First, `substring(paddedPenceNumberString.length - 2)` takes the last 2 characters.
+- Because `paddedPenceNumberString` has already been padded earlier with `padStart(3, "0")`, it will always be at least 3 characters long.
+- That means the substring operation already returns exactly 2 characters for any valid `penceString`.
+- So `.padEnd(2, "0")` is not actually needed in this script.
+- For `"399"`, the last two digits are `"99"`, so the result stays `"99"`.
 
 6) `console.log(\`£${pounds}.${pence}\`);`
 - Uses a template literal to format the final currency string as pounds and pence.