From 3e7fa880e3177d04ffa3090025b9159e45948d04 Mon Sep 17 00:00:00 2001
From: Vaidah Simenti <veesimz@gmail.com>
Date: Mon, 21 Sep 2026 20:37:47 +0200
Subject: [PATCH 1/6] complete sprint 2 exercises

---
 Sprint-2/1-key-exercises/1-count.js           | 13 ++--
 Sprint-2/1-key-exercises/2-initials.js        | 22 +++---
 Sprint-2/1-key-exercises/3-paths.js           | 47 +++++++------
 Sprint-2/1-key-exercises/4-random.js          | 23 +++---
 Sprint-2/2-mandatory-errors/0.js              |  6 +-
 Sprint-2/2-mandatory-errors/1.js              | 10 +--
 Sprint-2/2-mandatory-errors/2.js              | 13 ++--
 Sprint-2/2-mandatory-errors/3.js              | 19 ++---
 Sprint-2/2-mandatory-errors/4.js              |  7 +-
 .../1-percentage-change.js                    | 52 ++++++++------
 .../3-mandatory-interpret/2-time-format.js    | 56 ++++++++-------
 Sprint-2/3-mandatory-interpret/3-to-pounds.js | 64 ++++++++++-------
 Sprint-2/4-stretch-explore/chrome.md          | 36 ++++++----
 Sprint-2/4-stretch-explore/objects.md         | 43 +++++++-----
 Sprint-2/README.md                            | 70 +++++++++----------
 15 files changed, 272 insertions(+), 209 deletions(-)

diff --git a/Sprint-2/1-key-exercises/1-count.js b/Sprint-2/1-key-exercises/1-count.js
index 117bcb2b6..7323f68ed 100644
--- a/Sprint-2/1-key-exercises/1-count.js
+++ b/Sprint-2/1-key-exercises/1-count.js
@@ -1,6 +1,7 @@
-let count = 0;
-
-count = count + 1;
-
-// Line 1 is a variable declaration, creating the count variable with an initial value of 0
-// Describe what line 3 is doing, in particular focus on what = is doing
+let count = 0;
+
+count = count + 1;
+//Line 1 is variable declaration, creating the count variable with an initial value of 0
+//Line 3 takes the current value of count (0), adds 1 to it (0 + 1 = 1), and uses the assignment operator (=) to reassign and store this new value (1) back into the count variable.
+// 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
diff --git a/Sprint-2/1-key-exercises/2-initials.js b/Sprint-2/1-key-exercises/2-initials.js
index 964c9563c..b42b68be7 100644
--- a/Sprint-2/1-key-exercises/2-initials.js
+++ b/Sprint-2/1-key-exercises/2-initials.js
@@ -1,10 +1,12 @@
-const firstName = "Creola";
-const middleName = "Katherine";
-const 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.
-
-const initials = ``;
-
-// https://www.google.com/search?q=get+first+character+of+string+mdn
+const firstName = "Creola";
+const middleName = "Katherine";
+const 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.
+
+const initials = firstName[0] + middleName[0] + lastName[0];
+
+console.log(initials);
+
+// https://www.google.com/search?q=get+first+character+of+string+mdn
diff --git a/Sprint-2/1-key-exercises/3-paths.js b/Sprint-2/1-key-exercises/3-paths.js
index ab90ebb28..af1de47a8 100644
--- a/Sprint-2/1-key-exercises/3-paths.js
+++ b/Sprint-2/1-key-exercises/3-paths.js
@@ -1,23 +1,26 @@
-// The diagram below shows the different names for parts of a file path on a Unix operating system
-
-// ┌─────────────────────┬────────────┐
-// │          dir        │    base    │
-// ├──────┬              ├──────┬─────┤
-// │ root │              │ name │ ext │
-// "  /    home/user/dir / file  .txt "
-// └──────┴──────────────┴──────┴─────┘
-
-// (All spaces in the "" line should be ignored. They are purely for formatting.)
-
-const filePath = "/Users/mitch/cyf/Module-JS1/week-1/interpret/file.txt";
-const lastSlashIndex = filePath.lastIndexOf("/");
-const base = filePath.slice(lastSlashIndex + 1);
-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 = ;
-
+// The diagram below shows the different names for parts of a file path on a Unix operating system
+
+// ┌─────────────────────┬────────────┐
+// │          dir        │    base    │
+// ├──────┬              ├──────┬─────┤
+// │ root │              │ name │ ext │
+// "  /    home/user/dir / file  .txt "
+// └──────┴──────────────┴──────┴─────┘
+
+// (All spaces in the "" line should be ignored. They are purely for formatting.)
+
+const filePath = "/Users/mitch/cyf/Module-JS1/week-1/interpret/file.txt";
+const lastSlashIndex = filePath.lastIndexOf("/");
+const base = filePath.slice(lastSlashIndex + 1);
+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 = filePath.slice(0, lastSlashIndex);
+const ext = filePath.slice(filePath.lastIndexOf("."));
+
+console.log(dir);
+console.log(ext);
+
 // https://www.google.com/search?q=slice+mdn
\ No newline at end of file
diff --git a/Sprint-2/1-key-exercises/4-random.js b/Sprint-2/1-key-exercises/4-random.js
index 292f83aab..b0e5933f6 100644
--- a/Sprint-2/1-key-exercises/4-random.js
+++ b/Sprint-2/1-key-exercises/4-random.js
@@ -1,9 +1,14 @@
-const minimum = 1;
-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
+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
+// Try logging the value of num and running the program several times to build an idea of what the program is doing
+// Breakdown of the expression
+// 1. Math.random() this generates a decimal number from 0 up to , but not including 1
+//num represents a random number between minimum and maximum
\ No newline at end of file
diff --git a/Sprint-2/2-mandatory-errors/0.js b/Sprint-2/2-mandatory-errors/0.js
index cf6c5039f..7c1ace807 100644
--- a/Sprint-2/2-mandatory-errors/0.js
+++ b/Sprint-2/2-mandatory-errors/0.js
@@ -1,2 +1,4 @@
-This is just an instruction for the first activity - but it is just for human consumption
-We don't want the computer to run these 2 lines - how can we solve this problem?
\ No newline at end of file
+//This is just an instruction for the first activity - but it is just for human consumption
+//We don't want the computer to run these 2 lines - how can we solve this problem?
+
+   //answer: by adding the 2 forward slashes before every line
\ No newline at end of file
diff --git a/Sprint-2/2-mandatory-errors/1.js b/Sprint-2/2-mandatory-errors/1.js
index 7a43cbea7..ad09ad1ef 100644
--- a/Sprint-2/2-mandatory-errors/1.js
+++ b/Sprint-2/2-mandatory-errors/1.js
@@ -1,4 +1,6 @@
-// trying to create an age variable and then reassign the value by 1
-
-const age = 33;
-age = age + 1;
+// trying to create an age variable and then reassign the value by 1
+
+const age = 33;
+age = age + 1;
+
+console.log(age);
diff --git a/Sprint-2/2-mandatory-errors/2.js b/Sprint-2/2-mandatory-errors/2.js
index e09b89831..e26fcdc27 100644
--- a/Sprint-2/2-mandatory-errors/2.js
+++ b/Sprint-2/2-mandatory-errors/2.js
@@ -1,5 +1,8 @@
-// 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";
+// Currently trying to print the string "I was born in Bolton" but it isn't working...
+// what's the error ?
+
+const cityOfBirth = "Bolton";
+console.log(`I was born in ${cityOfBirth}`);
+
+//reason is the console.log was entered before the text
+
diff --git a/Sprint-2/2-mandatory-errors/3.js b/Sprint-2/2-mandatory-errors/3.js
index ec101884d..4ed86ec56 100644
--- a/Sprint-2/2-mandatory-errors/3.js
+++ b/Sprint-2/2-mandatory-errors/3.js
@@ -1,9 +1,10 @@
-const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.slice(-4);
-
-// The last4Digits variable should store the last 4 digits of cardNumber
-// However, the code isn't working
-// Before running the code, make and explain a prediction about why the code won't work
-// 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
+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
+// Before running the code, make and explain a prediction about why the code won't work
+// 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
diff --git a/Sprint-2/2-mandatory-errors/4.js b/Sprint-2/2-mandatory-errors/4.js
index 5f86c730b..1d13773e8 100644
--- a/Sprint-2/2-mandatory-errors/4.js
+++ b/Sprint-2/2-mandatory-errors/4.js
@@ -1,2 +1,5 @@
-const 12HourClockTime = "8:53pm";
-const 24hourClockTime = "20:53";
+const twelveHourClockTime = "8:53pm";
+const twentyFourHourClockTime = "20:53";
+
+console.log(twelveHourClockTime);
+console.log(twentyFourHourClockTime);
\ No newline at end of file
diff --git a/Sprint-2/3-mandatory-interpret/1-percentage-change.js b/Sprint-2/3-mandatory-interpret/1-percentage-change.js
index e24ecb8e1..169d7f69b 100644
--- a/Sprint-2/3-mandatory-interpret/1-percentage-change.js
+++ b/Sprint-2/3-mandatory-interpret/1-percentage-change.js
@@ -1,22 +1,30 @@
-let carPrice = "10,000";
-let priceAfterOneYear = "8,543";
-
-carPrice = Number(carPrice.replaceAll(",", ""));
-priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
-
-const priceDifference = carPrice - priceAfterOneYear;
-const percentageChange = (priceDifference / carPrice) * 100;
-
-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
-
-// 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?
-
-// c) Identify all the lines that are variable reassignment statements
-
-// d) Identify all the lines that are variable declarations
-
-// e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+let carPrice = "10,000";
+let priceAfterOneYear = "8,543";
+
+carPrice = Number(carPrice.replaceAll(",", ""));
+priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
+
+const priceDifference = carPrice - priceAfterOneYear;
+const percentageChange = (priceDifference / carPrice) * 100;
+
+console.log(`The percentage change is ${percentageChange}`);
+
+// Read the code and then answer the questions below
+
+// a) How many function calls are there in this file? Write down all the lines where a function call is made
+     //answer: we have 5 function calls across 3 lines: 
+     //line 4
+     //line 5
+    //line 10
+
+// b) Run the code and identify the line where the error is coming from - why is this error occurring? How can you fix this problem?
+    //answer: on line 5, there is an error caused by a missing comma replaceAll("," ""));. Can be fixed by changing it to priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
+
+// c) Identify all the lines that are variable reassignment statements
+    //answer: lines 4 and 5
+
+// d) Identify all the lines that are variable declarations
+    //answer: line 1, 2, 7 and 8
+
+// e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
+    //answer: .ReplaceAll(",", "") this will remove every comma from the price string and number will convert that clean string into a numeric value so mathematical calculations can be performed.
\ No newline at end of file
diff --git a/Sprint-2/3-mandatory-interpret/2-time-format.js b/Sprint-2/3-mandatory-interpret/2-time-format.js
index 47d239558..a6175ebef 100644
--- a/Sprint-2/3-mandatory-interpret/2-time-format.js
+++ b/Sprint-2/3-mandatory-interpret/2-time-format.js
@@ -1,25 +1,31 @@
-const movieLength = 8784; // length of movie in seconds
-
-const remainingSeconds = movieLength % 60;
-const totalMinutes = (movieLength - remainingSeconds) / 60;
-
-const remainingMinutes = totalMinutes % 60;
-const totalHours = (totalMinutes - remainingMinutes) / 60;
-
-const result = `${totalHours}:${remainingMinutes}:${remainingSeconds}`;
-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?
-
-// b) How many function calls are there?
-
-// c) Using documentation, explain what the expression movieLength % 60 represents
-// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
-
-// d) Interpret line 4, what does the expression assigned to totalMinutes mean?
-
-// 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
+const movieLength = 8784; // length of movie in seconds
+
+const remainingSeconds = movieLength % 60;
+const totalMinutes = (movieLength - remainingSeconds) / 60;
+
+const remainingMinutes = totalMinutes % 60;
+const totalHours = (totalMinutes - remainingMinutes) / 60;
+
+const result = `${totalHours}:${remainingMinutes}:${remainingSeconds}`;
+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?
+     //answer: we have 6 variable declarations
+
+// b) How many function calls are there?
+     //answer: there is 1 function call: line 10
+
+// c) Using documentation, explain what the expression movieLength % 60 represents
+// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
+    //answer:% is a remainder operator, it calculates left over seconds when movie length is divided into full minutes
+
+// d) Interpret line 4, what does the expression assigned to totalMinutes mean?
+//answer:it subtracts the left over seconds from the total movie length to get a multiple of 60, then divides by 60 to convert that duration into whole minutes.
+
+// e) What do you think the variable result represents? Can you think of a better name for this variable?
+   //answer: formattedMovieLength, it represents the movieLength format as a time string
+
+// f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+   //answer: yes it can work but only for positive numbers representing total seconds, if the movieLength is negative it will give off an output of an invalid time value
\ No newline at end of file
diff --git a/Sprint-2/3-mandatory-interpret/3-to-pounds.js b/Sprint-2/3-mandatory-interpret/3-to-pounds.js
index 60c9ace69..418ec67e7 100644
--- a/Sprint-2/3-mandatory-interpret/3-to-pounds.js
+++ b/Sprint-2/3-mandatory-interpret/3-to-pounds.js
@@ -1,27 +1,37 @@
-const penceString = "399p";
-
-const penceStringWithoutTrailingP = penceString.substring(
-  0,
-  penceString.length - 1
-);
-
-const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
-const pounds = paddedPenceNumberString.substring(
-  0,
-  paddedPenceNumberString.length - 2
-);
-
-const pence = paddedPenceNumberString
-  .substring(paddedPenceNumberString.length - 2)
-  .padEnd(2, "0");
-
-console.log(`£${pounds}.${pence}`);
-
-// This program takes a string representing a price in pence
-// The program then builds up a string representing the price in pounds
-
-// You need to do a step-by-step breakdown of each line in this program
-// Try and describe the purpose / rationale behind each step
-
-// To begin, we can start with
-// 1. const penceString = "399p": initialises a string variable with the value "399p"
+const penceString = "399p";
+
+const penceStringWithoutTrailingP = penceString.substring(
+  0,
+  penceString.length - 1
+);
+
+const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+const pounds = paddedPenceNumberString.substring(
+  0,
+  paddedPenceNumberString.length - 2
+);
+
+const pence = paddedPenceNumberString
+  .substring(paddedPenceNumberString.length - 2)
+  .padEnd(2, "0");
+
+console.log(`£${pounds}.${pence}`);
+
+// This program takes a string representing a price in pence
+// The program then builds up a string representing the price in pounds
+
+// You need to do a step-by-step breakdown of each line in this program
+// Try and describe the purpose / rationale behind each step
+
+// To begin, we can start with
+// 1. const penceString = "399p": initializes a string variable with the value "399p" representing the price in pence including the trailing letter 'p'
+
+// 2. const penceStringWithoutTrailingP = penceString.substring(0, penceString.length - 1): Extract the numeric portion of the penceString by taking characters from index 0 up to the last character removing the 'p'because 399p is not a valid number for math.
+
+// 3. const paddedPenceNumberString = penceStringWithoutTrailingP . padStart(3, "0"): it ensures the penceString is at least 3 digits long by adding leading zeros if necessary ensuring there will always be 2 digits for pence and 1 for pound.
+
+// 4. const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length - 2): Extracts the pounds portion of the price by taking all digits except the last 2
+
+// 5. const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2) padEnd(2, "0") it extracts the last 2 digits representing pence ensuring it is padded to 2 digits
+
+// 6. line 18 = formats and prints the final price string with the pound symbol, amount, period and pence amount i.e "£3.99"
\ No newline at end of file
diff --git a/Sprint-2/4-stretch-explore/chrome.md b/Sprint-2/4-stretch-explore/chrome.md
index 962580b82..5de5e6331 100644
--- a/Sprint-2/4-stretch-explore/chrome.md
+++ b/Sprint-2/4-stretch-explore/chrome.md
@@ -1,15 +1,21 @@
-Open a new window in Chrome, right click an empty space on the page, select **Inspect** from the dropdown, then locate the **Console** tab.
-
-Voila! You now have access to the [Chrome V8 Engine](https://www.cloudflare.com/en-gb/learning/serverless/glossary/what-is-chrome-v8/).
-Just like the Node REPL, you can input JavaScript code into the Console tab and the V8 engine will execute it.
-
-Let's try an example.
-
-In the Chrome console, invoke the function `alert` with one argument, the string `"Hello world!"`;
-
-What effect does calling the `alert` function have?
-
-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?
-What is the return value of `prompt`?
+Open a new window in Chrome, right click an empty space on the page, select **Inspect** from the dropdown, then locate the **Console** tab.
+
+Voila! You now have access to the [Chrome V8 Engine](https://www.cloudflare.com/en-gb/learning/serverless/glossary/what-is-chrome-v8/).
+Just like the Node REPL, you can input JavaScript code into the Console tab and the V8 engine will execute it.
+
+Let's try an example.
+
+In the Chrome console, invoke the function `alert` with one argument, the string `"Hello world!"`;
+
+What effect does calling the `alert` function have?
+
+   answer: it displays a pop-up dialog box in the browser window containing the message "Hello World!" and an ok button that pauses the page execution until the user dismisses it
+
+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?
+   answer: it pops up a box asking a question with a text field where you can type in your answer, plus an OK and cancel buttons.
+
+What is the return value of `prompt`?
+
+   answer: it returns the text typed by the user as a string in the text input field when they click ok.
diff --git a/Sprint-2/4-stretch-explore/objects.md b/Sprint-2/4-stretch-explore/objects.md
index 0216dee56..05672ff8b 100644
--- a/Sprint-2/4-stretch-explore/objects.md
+++ b/Sprint-2/4-stretch-explore/objects.md
@@ -1,16 +1,27 @@
-## Objects
-
-In this activity, we'll explore some additional concepts that you'll encounter in more depth later on in the course.
-
-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?
-
-Try also entering `typeof console`
-
-Answer the following questions:
-
-What does `console` store?
-What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean?
+## Objects
+
+In this activity, we'll explore some additional concepts that you'll encounter in more depth later on in the course.
+
+Open the Chrome devtools Console, type in `console.log` and then hit enter
+
+What output do you get?
+
+    answer: the output gives the function definition, i.e ƒ log() { [native code] }
+
+Now enter just `console` in the Console, what output do you get back?
+
+     answer: it returns the console object with all its methods i.e (log,warn,error,assert,etc)
+
+Try also entering `typeof console`
+
+     answer: it outputs "object"
+
+Answer the following questions:
+
+What does `console` store?
+
+     answer: it is a built-in global object that stores methods used to output messages, errors and warnings to the browser console
+
+What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean?
+
+      answer: the "." is a property accessor used to access a property or a method in an object. so console.log mean go into the object and grab the log
diff --git a/Sprint-2/README.md b/Sprint-2/README.md
index a47afc540..52fb6198f 100644
--- a/Sprint-2/README.md
+++ b/Sprint-2/README.md
@@ -1,35 +1,35 @@
-# 🧭 Guide to Sprint 2 exercises
-
-> https://curriculum.codeyourfuture.io/itp/javascript-fundamentals/sprints/2/prep/
-
-> [!TIP]
-> You should always do the prep work _before_ attempting the coursework.
-> The prep shows you _how_ to do the coursework.
-> There is often a step by step video you can code along with too.
-> Do the prep.
-
-This README will guide you through the different sections for this week.
-
-## 1 Exercises
-
-In this section, you'll have a short program and task. Some of the syntax may be unfamiliar - in this case, you'll need to look things up in documentation. 
-
-https://developer.mozilla.org/en-US/docs/Web/JavaScript
-
-## 2 Errors
-
-In this section, you'll need to go to each file in `errors` directory and run the file with node to check what the error is. Your task is to interpret the error message and explain why it occurs. The [errors documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors) will help you figure out the solution.
-
-## 3 Interpret
-
-In these tasks, you have to interpret a slightly larger program with some syntax / operators / functions that may be unfamiliar.
-
-You must use documentation to make sense of anything unfamiliar - learning how to look things up this way is a fundamental part of being a developer!
-
-You can also use `console.log` to check the value of different variables in the code.
-
-https://developer.mozilla.org/en-US/docs/Web/JavaScript 
-
-## 4 Explore - Stretch 💪
-
-This stretch activity will get you to start exploring new concepts and environments by yourself. It will do so by prompting you to reflect on some questions.
+# 🧭 Guide to Sprint 2 exercises
+
+> https://curriculum.codeyourfuture.io/itp/javascript-fundamentals/sprints/2/prep/
+
+> [!TIP]
+> You should always do the prep work _before_ attempting the coursework.
+> The prep shows you _how_ to do the coursework.
+> There is often a step by step video you can code along with too.
+> Do the prep.
+
+This README will guide you through the different sections for this week.
+
+## 1 Exercises
+
+In this section, you'll have a short program and task. Some of the syntax may be unfamiliar - in this case, you'll need to look things up in documentation. 
+
+https://developer.mozilla.org/en-US/docs/Web/JavaScript
+
+## 2 Errors
+
+In this section, you'll need to go to each file in `errors` directory and run the file with node to check what the error is. Your task is to interpret the error message and explain why it occurs. The [errors documentation](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors) will help you figure out the solution.
+
+## 3 Interpret
+
+In these tasks, you have to interpret a slightly larger program with some syntax / operators / functions that may be unfamiliar.
+
+You must use documentation to make sense of anything unfamiliar - learning how to look things up this way is a fundamental part of being a developer!
+
+You can also use `console.log` to check the value of different variables in the code.
+
+https://developer.mozilla.org/en-US/docs/Web/JavaScript 
+
+## 4 Explore - Stretch 💪
+
+This stretch activity will get you to start exploring new concepts and environments by yourself. It will do so by prompting you to reflect on some questions.

From 42991c0ea58d158677eb0ba6773dad4df1381a0f Mon Sep 17 00:00:00 2001
From: Vaidah <veesimz@gmail.com>
Date: Sat, 26 Sep 2026 10:53:04 +0200
Subject: [PATCH 2/6] expand breakdown of random expression in sprint 2
 exercise 4

---
 Sprint-2/1-key-exercises/4-random.js | 17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

diff --git a/Sprint-2/1-key-exercises/4-random.js b/Sprint-2/1-key-exercises/4-random.js
index b0e5933f6..c3b4970fd 100644
--- a/Sprint-2/1-key-exercises/4-random.js
+++ b/Sprint-2/1-key-exercises/4-random.js
@@ -10,5 +10,18 @@ console.log(num);
 // 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
 // Breakdown of the expression
-// 1. Math.random() this generates a decimal number from 0 up to , but not including 1
-//num represents a random number between minimum and maximum
\ No newline at end of file
+
+// The order is inner brackets first, multiplication, Math.floor and then + minimum
+// 1. maximum - minimum + 1 that is 100 - 1 + 1 = 100
+// This gives the total number of possible values (1 to 100 = 100)
+
+// 2. Math.random() is a random decimal between 0 and 1 but not including 1 like 0.7392..
+//    Math.random()*(maximum - minimum +1) 
+//    0.7392 * 100 = 73.92 
+
+// 3. Math.floor(73.92) = 73 ,
+//    it rounds down to the nearest whole number an integer from 0 to 99
+
+// 4. + minimum will be 73 + 1 = 74
+//    num represents random whole number between 1 and 100  
+

From 1794dd4920689b6462327a48183d311836730edb Mon Sep 17 00:00:00 2001
From: Vaidah <veesimz@gmail.com>
Date: Sat, 26 Sep 2026 11:08:40 +0200
Subject: [PATCH 3/6] add both comment styles per review in sprint 2 error 0

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

diff --git a/Sprint-2/2-mandatory-errors/0.js b/Sprint-2/2-mandatory-errors/0.js
index 7c1ace807..eb4037bce 100644
--- a/Sprint-2/2-mandatory-errors/0.js
+++ b/Sprint-2/2-mandatory-errors/0.js
@@ -1,4 +1,5 @@
 //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?
 
-   //answer: by adding the 2 forward slashes before every line
\ No newline at end of file
+   //answer: 1.by adding the 2 forward slashes before every line for single-line comment.
+   //        2.If it is a multi-line comment you wrap the code in a slash-star and slash-star symbols
\ No newline at end of file

From 915b09f3d2d602a21b14639e1a6fc91bb8babbab Mon Sep 17 00:00:00 2001
From: Vaidah <veesimz@gmail.com>
Date: Sat, 26 Sep 2026 11:30:04 +0200
Subject: [PATCH 4/6] explain TypeError on line 4 in sprint 2 error 1

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

diff --git a/Sprint-2/2-mandatory-errors/1.js b/Sprint-2/2-mandatory-errors/1.js
index ad09ad1ef..6567ea742 100644
--- a/Sprint-2/2-mandatory-errors/1.js
+++ b/Sprint-2/2-mandatory-errors/1.js
@@ -3,4 +3,5 @@
 const age = 33;
 age = age + 1;
 
-console.log(age);
+// there is a TypeError: Assignment to constant variable, 
+// that tells us that changing a const is not allowed

From e8e9f51bdc1954511448dd65e36884b0ad2b7ebb Mon Sep 17 00:00:00 2001
From: Vaidah <veesimz@gmail.com>
Date: Sat, 26 Sep 2026 12:18:48 +0200
Subject: [PATCH 5/6] state the error and reason in sprint 2 error 2

---
 Sprint-2/2-mandatory-errors/2.js | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/2-mandatory-errors/2.js b/Sprint-2/2-mandatory-errors/2.js
index e26fcdc27..fa43c74dd 100644
--- a/Sprint-2/2-mandatory-errors/2.js
+++ b/Sprint-2/2-mandatory-errors/2.js
@@ -4,5 +4,8 @@
 const cityOfBirth = "Bolton";
 console.log(`I was born in ${cityOfBirth}`);
 
-//reason is the console.log was entered before the text
+// the error is ReferenceError: Cannot access 'cityOfBirth' before initialization,
+// reason is the console.log was entered before the variable declaration.
+//  Console.log cannot run something that is not there yet.
+// To fix it , move the const declaration above the console.log
 

From e4b6cae2877b76cbf557d2f8ab500f9cd3a883bb Mon Sep 17 00:00:00 2001
From: Vaidah <veesimz@gmail.com>
Date: Sat, 26 Sep 2026 12:29:24 +0200
Subject: [PATCH 6/6] explain variable rename in sprint 2 error 4

---
 Sprint-2/2-mandatory-errors/4.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Sprint-2/2-mandatory-errors/4.js b/Sprint-2/2-mandatory-errors/4.js
index 1d13773e8..e020479ef 100644
--- a/Sprint-2/2-mandatory-errors/4.js
+++ b/Sprint-2/2-mandatory-errors/4.js
@@ -2,4 +2,10 @@ const twelveHourClockTime = "8:53pm";
 const twentyFourHourClockTime = "20:53";
 
 console.log(twelveHourClockTime);
-console.log(twentyFourHourClockTime);
\ No newline at end of file
+console.log(twentyFourHourClockTime);
+
+// Original code used `12HourClockTime` and `24hourClockTime` as variable names.
+// but these start with numbers, which JavaScript doesn't allow 
+// variable names must start with a letter, underscore, or dollar sign.
+// So I renamed them to `twelveHourClockTime` and `twentyFourHourClockTime`.
+// This avoids the SyntaxError and makes the code run.