From 76578abffa7d30ba717f97e5400818fd100432d8 Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Sat, 7 Feb 2026 16:16:09 +0000 Subject: [PATCH 01/15] Answered the question --- 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..42810e6c8 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 +// In line 3, the = sign is assignment From 8af969eb3f6af64350bdc20e7f147881d45f7385 Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Sat, 7 Feb 2026 16:26:22 +0000 Subject: [PATCH 02/15] I declared a variable called initials that stores the first character of each string. --- Sprint-1/1-key-exercises/2-initials.js | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js index 47561f617..0238a71c6 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]; // https://www.google.com/search?q=get+first+character+of+string+mdn From 3ccecb31ee48309fb42861405817fd2658575561 Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Sat, 7 Feb 2026 16:39:51 +0000 Subject: [PATCH 03/15] I created variables to store the dir and ext parts --- Sprint-1/1-key-exercises/3-paths.js | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Sprint-1/1-key-exercises/3-paths.js b/Sprint-1/1-key-exercises/3-paths.js index ab90ebb28..368adeceb 100644 --- a/Sprint-1/1-key-exercises/3-paths.js +++ b/Sprint-1/1-key-exercises/3-paths.js @@ -17,7 +17,7 @@ console.log(`The base part of ${filePath} is ${base}`); // Create a variable to store the dir part of the filePath variable // Create a variable to store the ext part of the variable -const dir = ; -const ext = ; +const dir = filePath.slice(0, lastSlashIndex); +const ext = base.slice(base.lastSlashIndex0f(",") + 1); // https://www.google.com/search?q=slice+mdn \ No newline at end of file From 1caa7a3d8549d029076364bf34d42c9253b876bd Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Sun, 8 Feb 2026 19:57:34 +0000 Subject: [PATCH 04/15] Complete --- Sprint-1/1-key-exercises/4-random.js | 26 +++++++++++++++++++++++++- 1 file changed, 25 insertions(+), 1 deletion(-) diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js index 292f83aab..878796b21 100644 --- a/Sprint-1/1-key-exercises/4-random.js +++ b/Sprint-1/1-key-exercises/4-random.js @@ -1,9 +1,33 @@ const minimum = 1; const maximum = 100; -const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum; +const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum; // num generates a random whole number between minimum and maximum // 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 + +// Below I will be breaking down the expression: const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum; + +// First you will need to generate a random decimal number between 0 and 1 +const decimal = Math.random(); + +// Then calculate the range size +const range = maximum - minimum + 1; + +// Then scale the decimal to the range +const scaled = decimal * range; + +// Then round down to get a whole number +const floored = Math.floor(scaled); + +// Then shift the number up to start at the minimum +const result = floored + minimum; + +// You can log each part to understand the process +console.log("decimal:", decimal); +console.log("range:", range); +console.log("scaled:", scaled); +console.log("floored:", floored); +console.log("result:", result); From c5b582ddba34fbc5aedfaaff2e90df621171ad42 Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Sun, 8 Feb 2026 20:02:09 +0000 Subject: [PATCH 05/15] Changed it to make it into a comment by adding // --- Sprint-1/2-mandatory-errors/0.js | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Sprint-1/2-mandatory-errors/0.js b/Sprint-1/2-mandatory-errors/0.js index cf6c5039f..044add7ac 100644 --- a/Sprint-1/2-mandatory-errors/0.js +++ b/Sprint-1/2-mandatory-errors/0.js @@ -1,2 +1,2 @@ -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? From 14184ec1b6650302a60d29e8526ae0611ce39a93 Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Sun, 8 Feb 2026 20:15:57 +0000 Subject: [PATCH 06/15] I created an age variable and then reassign the value by 1 --- Sprint-1/2-mandatory-errors/1.js | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Sprint-1/2-mandatory-errors/1.js b/Sprint-1/2-mandatory-errors/1.js index 7a43cbea7..96e657b83 100644 --- a/Sprint-1/2-mandatory-errors/1.js +++ b/Sprint-1/2-mandatory-errors/1.js @@ -1,4 +1,6 @@ // trying to create an age variable and then reassign the value by 1 -const age = 33; +let age = 33; // let allows reassignment whereas const doesn't age = age + 1; + +console.log(age); From b45b87ded891b24902c1dba0f9a2bc32107db6db Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Sun, 8 Feb 2026 20:35:46 +0000 Subject: [PATCH 07/15] I identified the error and corrected it --- Sprint-1/2-mandatory-errors/2.js | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js index e09b89831..79acaa646 100644 --- a/Sprint-1/2-mandatory-errors/2.js +++ b/Sprint-1/2-mandatory-errors/2.js @@ -3,3 +3,11 @@ console.log(`I was born in ${cityOfBirth}`); const cityOfBirth = "Bolton"; + +// The error is that the variable cityOfBirth isn't declared and assigned a value. +// To fix the error, we need to declare and assign a value to cityOfBirth before using it in the console.log statement. + +// The corrected code is below: + +const cityOfBirth = "Bolton"; +console.log(`I was born in ${cityOfBirth}`); From da67e6838544ad8bacf5fa534776460d0d1cdf5c Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Sun, 8 Feb 2026 20:38:41 +0000 Subject: [PATCH 08/15] Changed corrected code into a comment --- Sprint-1/2-mandatory-errors/2.js | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js index 79acaa646..fe99fa151 100644 --- a/Sprint-1/2-mandatory-errors/2.js +++ b/Sprint-1/2-mandatory-errors/2.js @@ -7,7 +7,7 @@ const cityOfBirth = "Bolton"; // The error is that the variable cityOfBirth isn't declared and assigned a value. // To fix the error, we need to declare and assign a value to cityOfBirth before using it in the console.log statement. -// The corrected code is below: +// The correct code is below: -const cityOfBirth = "Bolton"; -console.log(`I was born in ${cityOfBirth}`); +// const cityOfBirth = "Bolton"; +// console.log(`I was born in ${cityOfBirth}`); From 4252fe6694ce0c42f263d4dfd3b46e9a220b0e88 Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Sun, 8 Feb 2026 20:55:39 +0000 Subject: [PATCH 09/15] Explained why code failed and updated last4Digits to convert cardNumber into a string --- Sprint-1/2-mandatory-errors/3.js | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js index ec101884d..804a8a315 100644 --- a/Sprint-1/2-mandatory-errors/3.js +++ b/Sprint-1/2-mandatory-errors/3.js @@ -1,5 +1,11 @@ +// Prediction: The code won't work because cardNumber is defined as a number not a string. +// The slice method is a string and arrays method, and can't be used on a number type. +// Error: TypeError: cardNumber.slice is not a function + const cardNumber = 4533787178994213; -const last4Digits = cardNumber.slice(-4); +const last4Digits = cardNumber.toString().slice(-4); + +console.log(last4Digits); // Should output: 4213 // The last4Digits variable should store the last 4 digits of cardNumber // However, the code isn't working From 446aa4530c7adf5016ce58cfed614339f0418ca2 Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Sun, 8 Feb 2026 21:01:40 +0000 Subject: [PATCH 10/15] Corrected the errors by adding _ --- 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 21dad8c5d..cbac554a4 100644 --- a/Sprint-1/2-mandatory-errors/4.js +++ b/Sprint-1/2-mandatory-errors/4.js @@ -1,2 +1,2 @@ -const 12HourClockTime = "20:53"; -const 24hourClockTime = "08:53"; \ No newline at end of file +const _12HourClockTime = "20:53"; +const _24hourClockTime = "08:53"; From c56115314006789d0a4a16cf293bd26b79983c3f Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Mon, 9 Feb 2026 17:39:42 +0000 Subject: [PATCH 11/15] Answered the questions --- .../1-percentage-change.js | 25 ++++++++++++++++++- 1 file changed, 24 insertions(+), 1 deletion(-) diff --git a/Sprint-1/3-mandatory-interpret/1-percentage-change.js b/Sprint-1/3-mandatory-interpret/1-percentage-change.js index e24ecb8e1..28bb30c11 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 +12,34 @@ 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.replaceAll(",", "") - line 4 +// Number(...) - line 4, wraps the result of replaceAll +// priceAfterOneYear.replaceAll("," "") - line 5 +// Number(...) - line 5, wraps the second result of replaceAll +// console.log(..) - line 9 +// Answer: Overall, there are 5 function calls, on lines 4, 5 and 9. // 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? +// Error: priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," "")); +// The red line on replaceAll("," "") indicates that there is a syntax error on line 5. +// A comma was missing between the two arguments inside the replaceAll function call. +// To fix this, I added a comma between the two arguments like this: replaceAll(",", ""). + +// Error: SyntaxError: missing ) after argument list and price AfterOneYear = Number(priceAfterOneYear.replaceAll("," "")); +// The error appears on the console.log line because the string was written using smart quotes instead of normal JavaScript quotes. +// Smart quotes break the strong syntax rules of JavaScript. +// To fix this, replace the smart quotes with straight quotes. // c) Identify all the lines that are variable reassignment statements +// carPrice = Number(carPrice.replaceAll(",", "")); Line 4 +// priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", "")); Line 5 // d) Identify all the lines that are variable declarations +// let carPrice = "10,000"; Line 1 +// let priceAfterOneYear = "8,543"; Line 2 +// const priceDifference = carPrice - priceAfterOneYear; Line 7 +// const percentageChange = (priceDifference / carPrice) * 100; Line 8 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression? +// The expression Number(carPrice.replaceAll(",", "")) is removing all the commas from carPrice string by replacing every comma with an empty string. +// The purpose is to clean the value so that it can be converted to a proper number using Number(). From 9a18e74bed2cedd1587aed41f152361c3986f5d0 Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Mon, 9 Feb 2026 19:39:28 +0000 Subject: [PATCH 12/15] Answered these questions --- Sprint-1/3-mandatory-interpret/2-time-format.js | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/Sprint-1/3-mandatory-interpret/2-time-format.js b/Sprint-1/3-mandatory-interpret/2-time-format.js index 47d239558..be7a41d13 100644 --- a/Sprint-1/3-mandatory-interpret/2-time-format.js +++ b/Sprint-1/3-mandatory-interpret/2-time-format.js @@ -12,14 +12,31 @@ console.log(result); // For the piece of code above, read the code and then answer the following questions // a) How many variable declarations are there in this program? +// There are 6 variable declarations in total: movieLength, remainingSeconds, totalMinutes, remainingMinutes, totalHours, result // b) How many function calls are there? +// T There is 1 function call in this program: 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 +// According to the documentation, the remainder operator (%) returns the remainder after dividing one number by another. +// In this case, movieLength % 60 divides movieLength (which is in seconds) by 60, +// And returns the leftover seconds that don't fit into a full minute. // d) Interpret line 4, what does the expression assigned to totalMinutes mean? +// This line removes the leftover seconds (remainingSeconds) and converts the remaining whole seconds into minutes. +// So it gives you the total number of whole minutes in the movie. // e) What do you think the variable result represents? Can you think of a better name for this variable? +// The result variable represents the final formatted time of the movie in hours, minutes and seconds - hours:minutes:seconds format. +// A better name could be formattedTime or movieDuration. // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer +// If I set movieLength to 8784, the output will be "2:26:24", which is correct, +// so this is a normal case where the code works as expected. + +// If I set movieLength to 0, the output will be "0:0:0", which is also correct, +// It shows it can handle edge cases even though it is an unusual value. + +// If I set movieLength to -200, the output will be "-1:-3:-20", which is not a valid time format, +// This shows that the logic breaks because the code does not protect against invalid negative inputs. From 24c4800083ea993147fc526d5d7be2b51b41e99b Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Mon, 9 Feb 2026 20:17:13 +0000 Subject: [PATCH 13/15] Step-by-step breakdown of each line in this program --- Sprint-1/3-mandatory-interpret/3-to-pounds.js | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/Sprint-1/3-mandatory-interpret/3-to-pounds.js b/Sprint-1/3-mandatory-interpret/3-to-pounds.js index 60c9ace69..b02402974 100644 --- a/Sprint-1/3-mandatory-interpret/3-to-pounds.js +++ b/Sprint-1/3-mandatory-interpret/3-to-pounds.js @@ -25,3 +25,20 @@ console.log(`£${pounds}.${pence}`); // To begin, we can start with // 1. const penceString = "399p": initialises a string variable with the value "399p" + +// 2. const penceStringWithoutTrailingP = penceString.substring(0, penceString.length - 1); : +// Removes the "p" character so only the numeric part of the price remains. + +// 3. const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0"): +// Ensures the number is at least 3 digits long by adding leading zeros when necessary, which helps with consistent formatting. + +// 4. const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length - 2); : +// Extracts everything except the last two digits to form the pounds portion of the price. + +// 5. const pence = paddedPenceNumberString .substring(paddedPenceNumberString.length - 2) .padEnd(2, "0"); : +// Takes the final two digits of the padded string to form the pence portion. + +// 6. console.log(`£${pounds}.${pence}`); : +// Combines the pounds and pence into a standard currency format and prints it to the console, "£3.99" +// The program takes a string representing a price in pence (e.g., "399p") +// and converts it to a string representing the price in pounds (e.g., "£3.99"). From 06d3cc814459c8d8f83a8d012203b434f00e6949 Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Mon, 9 Feb 2026 20:30:49 +0000 Subject: [PATCH 14/15] Completed the tasks and answered the questions --- 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 e7dd5feaf..f4855be8d 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 message in a pop up box and stops the page until the user clicks "OK". 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? +Shows a pop up box with a message "What is your name?" and an input box. + What is the return value of `prompt`? +Prompt() returns the text the user enters, or null if they cancel the dialog. From 3582cd66600d47bf7b2406f12057b3112a536a21 Mon Sep 17 00:00:00 2001 From: Asha Ahmed Date: Mon, 9 Feb 2026 20:37:20 +0000 Subject: [PATCH 15/15] Completed the exercise on Chrome Console and answered the questions --- Sprint-1/4-stretch-explore/objects.md | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Sprint-1/4-stretch-explore/objects.md b/Sprint-1/4-stretch-explore/objects.md index 0216dee56..4dc2380eb 100644 --- a/Sprint-1/4-stretch-explore/objects.md +++ b/Sprint-1/4-stretch-explore/objects.md @@ -5,12 +5,19 @@ 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? +ƒ log() { [native code] } Now enter just `console` in the Console, what output do you get back? +console {debug: ƒ, error: ƒ, info: ƒ, log: ƒ, warn: ƒ, …} Try also entering `typeof console` +'object' Answer the following questions: What does `console` store? +The console stores a history of messages your code prints while it runs. + What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean? +You are accessing a function (a method) that belongs to the console object. +The `.` is used to access that method from the object.