From 9886ffccb2ec024068ee773f1703a58ff02c615b Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Mon, 9 Feb 2026 22:56:53 +0000 Subject: [PATCH 01/14] Described what line 3 is doing --- 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..cede8e3bc 100644 --- a/Sprint-1/1-key-exercises/1-count.js +++ b/Sprint-1/1-key-exercises/1-count.js @@ -2,5 +2,6 @@ let count = 0; count = count + 1; +Line 3 is an assignment statement that updates the value of 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 From ee71142527c0cfa929d9913b72855dc9ae6ac6be Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Mon, 9 Feb 2026 23:14:45 +0000 Subject: [PATCH 02/14] Implement initials extraction from first, middle, and last names --- Sprint-1/1-key-exercises/2-initials.js | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js index 47561f617..74a354548 100644 --- a/Sprint-1/1-key-exercises/2-initials.js +++ b/Sprint-1/1-key-exercises/2-initials.js @@ -5,7 +5,8 @@ let lastName = "Johnson"; // Declare a variable called initials that stores the first character of each string. // This should produce the string "CKJ", but you must not write the characters C, K, or J in the code of your solution. -let initials = ``; +let initials = `${firstName.charAt(0)}${middleName.charAt(0)}${lastName.charAt(0)}`; +console.log(initials) // https://www.google.com/search?q=get+first+character+of+string+mdn From 5d661c52fda13c80278aaeb99e66db8b903c585c Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Mon, 9 Feb 2026 23:42:34 +0000 Subject: [PATCH 03/14] Implement extraction of directory using slice --- Sprint-1/1-key-exercises/3-paths.js | 7 +++++-- 1 file changed, 5 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..f635ed0d1 100644 --- a/Sprint-1/1-key-exercises/3-paths.js +++ b/Sprint-1/1-key-exercises/3-paths.js @@ -17,7 +17,10 @@ console.log(`The base part of ${filePath} is ${base}`); // Create a variable to store the dir part of the filePath variable // Create a variable to store the ext part of the variable -const dir = ; -const ext = ; +const dir = filePath.slice(0,lastSlashIndex); +const ext = filePath.slice(filePath.lastIndexOf(".") + 1); + +console.log(`The dir part of ${filePath} is ${dir}`); +console.log(`The ext part of ${filePath} is ${ext}`); // https://www.google.com/search?q=slice+mdn \ No newline at end of file From 8c004f308ae8b657a73f8b7cae183ed098b7b48e Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Mon, 9 Feb 2026 23:50:40 +0000 Subject: [PATCH 04/14] defined what num represent --- Sprint-1/1-key-exercises/4-random.js | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js index 292f83aab..2f9dcaee7 100644 --- a/Sprint-1/1-key-exercises/4-random.js +++ b/Sprint-1/1-key-exercises/4-random.js @@ -2,8 +2,7 @@ const minimum = 1; const maximum = 100; const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum; +console.log(num) + +//In this exercise num is a variable that stores a random integer between 1 and 100. -// 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 From e9b4f5d043b9318fbf57aafd93db1149772b22b0 Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Mon, 9 Feb 2026 23:54:45 +0000 Subject: [PATCH 05/14] commented out the 2 lines --- Sprint-1/2-mandatory-errors/0.js | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/Sprint-1/2-mandatory-errors/0.js b/Sprint-1/2-mandatory-errors/0.js index cf6c5039f..9b905911c 100644 --- a/Sprint-1/2-mandatory-errors/0.js +++ b/Sprint-1/2-mandatory-errors/0.js @@ -1,2 +1,3 @@ -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? +// I commented out the comments. \ No newline at end of file From 01fb6ae28c1569796d85bb1adf677876fe89fd3e Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Mon, 9 Feb 2026 23:59:42 +0000 Subject: [PATCH 06/14] created New age variable --- 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 7a43cbea7..b87fd4021 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; -age = age + 1; +Newage = (age + 1); +console.log(Newage) \ No newline at end of file From e6623612f98d08d7f20e6d53f222817c754fc1cf Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Tue, 10 Feb 2026 00:09:48 +0000 Subject: [PATCH 07/14] fixed the input error --- Sprint-1/2-mandatory-errors/2.js | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js index e09b89831..3587d708a 100644 --- a/Sprint-1/2-mandatory-errors/2.js +++ b/Sprint-1/2-mandatory-errors/2.js @@ -1,5 +1,6 @@ // Currently trying to print the string "I was born in Bolton" but it isn't working... // what's the error ? +let cityOfBirth = "Bolton"; console.log(`I was born in ${cityOfBirth}`); -const cityOfBirth = "Bolton"; +//The error was because the variable was declared after the consol.log From ef076e00e54caf1b21cb09ce574e4aec349a7479 Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Tue, 10 Feb 2026 00:36:26 +0000 Subject: [PATCH 08/14] fTurned cardNumber to string before slicing to extract last 4 digits --- Sprint-1/2-mandatory-errors/3.js | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js index ec101884d..32a1df88e 100644 --- a/Sprint-1/2-mandatory-errors/3.js +++ b/Sprint-1/2-mandatory-errors/3.js @@ -1,5 +1,8 @@ const cardNumber = 4533787178994213; -const last4Digits = cardNumber.slice(-4); +const last4Digits = String(cardNumber).slice(-4); +//I think it won't work because slice is not used for numbers, it's used for strings and arrays. +console.log(last4Digits); +// It gives an error because cardNumber is a number and slice is a method for strings and arrays. // The last4Digits variable should store the last 4 digits of cardNumber // However, the code isn't working From 587429dadf675fc0ee35a2816903bc4b02bea807 Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Tue, 10 Feb 2026 00:41:53 +0000 Subject: [PATCH 09/14] changes variables initial description from numbers to letters. --- Sprint-1/2-mandatory-errors/4.js | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js index 21dad8c5d..946a5d6b4 100644 --- a/Sprint-1/2-mandatory-errors/4.js +++ b/Sprint-1/2-mandatory-errors/4.js @@ -1,2 +1,3 @@ -const 12HourClockTime = "20:53"; -const 24hourClockTime = "08:53"; \ No newline at end of file +const TwelveHourClockTime = "20:53"; +const TwentyfourHourClockTime = "08:53"; +//The errors in the code were that variables can't start with numbers. \ No newline at end of file From 98f4de994b2eb6b95d37f0db153dbfd43611c295 Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Tue, 10 Feb 2026 01:22:59 +0000 Subject: [PATCH 10/14] Fix missing comma in replaceAll --- Sprint-1/3-mandatory-interpret/1-percentage-change.js | 10 +++++++++- 1 file changed, 9 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..a785e17f8 100644 --- a/Sprint-1/3-mandatory-interpret/1-percentage-change.js +++ b/Sprint-1/3-mandatory-interpret/1-percentage-change.js @@ -2,13 +2,21 @@ 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; console.log(`The percentage change is ${percentageChange}`); +//a) There are 4 function calls in this file. They are on lines 1, 2, 4, and 5. +//b) The error is in line 4 and 5. The error is occurring because the replaceAll function is being called on a string, +// but the string has not been converted to a number. +//c) The variable reassignment statements are in lines 4 and 5 +//d) The variable declarations are in lines 1,2,7, and 8. +//e) The expression Number(carPrice.replaceAll(",","")) is converting the string carPrice into a number +// by removing the commas and then converting the resulting string into a number. from "10,000" to "10000" to 10000 + // Read the code and then answer the questions below // a) How many function calls are there in this file? Write down all the lines where a function call is made From 0ed56e52161727ca1207fb633d6ffc0aa9875e29 Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Tue, 10 Feb 2026 01:55:26 +0000 Subject: [PATCH 11/14] Complete time-format code interpretation exercise --- Sprint-1/3-mandatory-interpret/2-time-format.js | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/Sprint-1/3-mandatory-interpret/2-time-format.js b/Sprint-1/3-mandatory-interpret/2-time-format.js index 47d239558..7dae3ad52 100644 --- a/Sprint-1/3-mandatory-interpret/2-time-format.js +++ b/Sprint-1/3-mandatory-interpret/2-time-format.js @@ -9,6 +9,18 @@ const totalHours = (totalMinutes - remainingMinutes) / 60; const result = `${totalHours}:${remainingMinutes}:${remainingSeconds}`; console.log(result); +//Answers: +//a) There are 6 variable declarations in this program. They are on lines 1,3,4,6,7, and 9. +//b) There is 1 function call in this program. It is on line 9. +//c) The expression movieLength % 60 represents the remainder when movieLength is divided by 60. +//d) The expression convert the total movie length into minutes, ignoring the leftover seconds. +//e) The variable result represents the total length of the movie in hours, minutes, and seconds. +// a better name is movieLength +//f) This code work perfectly for positive numbers> However, it doesn't work for negative or very large numbers, and decimals. + + + + // 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? From 9e74f96431bb695fa9d910ed2109eec5df1f2e73 Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Tue, 10 Feb 2026 02:20:37 +0000 Subject: [PATCH 12/14] Enhance comments for clarity in pence to uk format pounds conversion --- Sprint-1/3-mandatory-interpret/3-to-pounds.js | 12 ++++++++---- 1 file changed, 8 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 60c9ace69..3baa9161d 100644 --- a/Sprint-1/3-mandatory-interpret/3-to-pounds.js +++ b/Sprint-1/3-mandatory-interpret/3-to-pounds.js @@ -1,21 +1,25 @@ const penceString = "399p"; - +// it creates a string representing a price in pence,the p at the end indicates the unit. const penceStringWithoutTrailingP = penceString.substring( 0, penceString.length - 1 ); - +// it removes the trailing "p" from the penceString, leaving only the numeric part of the string. const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0"); +//Insure the numeric string has at least 3 characters, padding it with 0 if needed. const pounds = paddedPenceNumberString.substring( 0, paddedPenceNumberString.length - 2 ); - +// Takes all digits except the last two to represent the pounds part of the price. const pence = paddedPenceNumberString .substring(paddedPenceNumberString.length - 2) .padEnd(2, "0"); - +// Takes the last two digits to represent the pence part of the price, ensuring it has two characters. console.log(`£${pounds}.${pence}`); +// it logs the final price in pounds and pence format : "£3.99" + + // This program takes a string representing a price in pence // The program then builds up a string representing the price in pounds From 0c994bbbd56e095ef528b74958b22b51d173afc4 Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Tue, 10 Feb 2026 02:42:19 +0000 Subject: [PATCH 13/14] Enhance explanations for alert and prompt functions in Chrome console --- 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..18ae6c5d6 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? +Calling the alert function displays a modal dialog box (popup window) in the browser with your message and an "OK" button. 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 displays a modal dialog box with a message (what's your name?),where user can type, and chose either ok or cancel. + What is the return value of `prompt`? +The return value of prompt is a string containing the text that the user typed when they click ok.Otherwise, it's null. From 1a7e2ed2a3111dd167c28ed1be125bfc3a7db157 Mon Sep 17 00:00:00 2001 From: Oussama Mouggal Date: Tue, 10 Feb 2026 02:59:15 +0000 Subject: [PATCH 14/14] Enhance explanations for console object and its methods in objects.md --- Sprint-1/4-stretch-explore/objects.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/Sprint-1/4-stretch-explore/objects.md b/Sprint-1/4-stretch-explore/objects.md index 0216dee56..17eadaa52 100644 --- a/Sprint-1/4-stretch-explore/objects.md +++ b/Sprint-1/4-stretch-explore/objects.md @@ -13,4 +13,7 @@ Try also entering `typeof console` Answer the following questions: What does `console` store? +a console stores an object provided by the browser that contains methods for logging information, debugging, and interacting with the developer console. + What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean? +The syntax console.log accesses a property called log on the console object. On the other hand, console.assert means access the assert method of the console object. Finally, the '.' is the member access operator. \ No newline at end of file