From 51a060d660128b128c6a490420df139d354f872a Mon Sep 17 00:00:00 2001 From: Ebrahim_Moqbel Date: Tue, 24 Feb 2026 01:35:48 +0000 Subject: [PATCH 1/9] explaining line line 3 --- 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..d56821f58 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 +// Line 3 is an assignment where = is an assignment operator and in there we are adding value of 1 to the count variable From 795be4362bfc65e8fe90c78800d039dbf96a725b Mon Sep 17 00:00:00 2001 From: Ebrahim_Moqbel Date: Tue, 24 Feb 2026 12:46:01 +0000 Subject: [PATCH 2/9] creating initials from a string --- Sprint-1/1-key-exercises/2-initials.js | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js index 47561f617..c5bd88caf 100644 --- a/Sprint-1/1-key-exercises/2-initials.js +++ b/Sprint-1/1-key-exercises/2-initials.js @@ -6,6 +6,6 @@ let lastName = "Johnson"; // 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 = ``; +console.log(`the initials is ${firstName.charAt(0)}, ${middleName.charAt(0), lastName(0)}`); -// https://www.google.com/search?q=get+first+character+of+string+mdn - +// https://www.google.com/search?q=get+first+character+of+string+mdn \ No newline at end of file From 2b4173bc0ec6f7b4cb0fe688c2b26a2ff25a1b41 Mon Sep 17 00:00:00 2001 From: Ebrahim_Moqbel Date: Wed, 25 Feb 2026 18:04:59 +0000 Subject: [PATCH 3/9] solved the exercises --- Sprint-1/1-key-exercises/1-count.js | 1 + Sprint-1/1-key-exercises/2-initials.js | 2 +- Sprint-1/1-key-exercises/3-paths.js | 9 +++++---- Sprint-1/1-key-exercises/4-random.js | 7 +++++++ Sprint-1/2-mandatory-errors/0.js | 4 ++-- Sprint-1/2-mandatory-errors/1.js | 2 +- Sprint-1/2-mandatory-errors/2.js | 5 ++++- Sprint-1/2-mandatory-errors/3.js | 5 ++++- Sprint-1/2-mandatory-errors/4.js | 4 ++-- 9 files changed, 27 insertions(+), 12 deletions(-) diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js index d56821f58..0d9c8a880 100644 --- a/Sprint-1/1-key-exercises/1-count.js +++ b/Sprint-1/1-key-exercises/1-count.js @@ -4,4 +4,5 @@ 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 + // Line 3 is an assignment where = is an assignment operator and in there we are adding value of 1 to the count variable diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js index c5bd88caf..f6b16b322 100644 --- a/Sprint-1/1-key-exercises/2-initials.js +++ b/Sprint-1/1-key-exercises/2-initials.js @@ -6,6 +6,6 @@ let lastName = "Johnson"; // 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 = ``; -console.log(`the initials is ${firstName.charAt(0)}, ${middleName.charAt(0), lastName(0)}`); +console.log(`the initials is ${firstName.charAt(0)}, ${middleName.charAt(0), lastName.charAt(0)}`); // https://www.google.com/search?q=get+first+character+of+string+mdn \ No newline at end of file diff --git a/Sprint-1/1-key-exercises/3-paths.js b/Sprint-1/1-key-exercises/3-paths.js index ab90ebb28..0014c33ed 100644 --- a/Sprint-1/1-key-exercises/3-paths.js +++ b/Sprint-1/1-key-exercises/3-paths.js @@ -15,9 +15,10 @@ 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 +// 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(".")); -// https://www.google.com/search?q=slice+mdn \ No newline at end of file + +// https://www.google.com/search?q=slice+mdn \ No newline at end of file diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js index 292f83aab..87c0e721d 100644 --- a/Sprint-1/1-key-exercises/4-random.js +++ b/Sprint-1/1-key-exercises/4-random.js @@ -7,3 +7,10 @@ const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum; // Try breaking down the expression and using documentation to explain what it means // It will help to think about the order in which expressions are evaluated // Try logging the value of num and running the program several times to build an idea of what the program is doing + +// math.floor will make the number as a whole and remove any decimals or more likely to round the the nearest whole number +// math.random will generate a random number from 0 to 1 but not 1 +// (maximum - minimum + 1) provide a range of generated random number +// num is a random whole number between 1 and 100 + +console.log(num); \ No newline at end of file diff --git a/Sprint-1/2-mandatory-errors/0.js b/Sprint-1/2-mandatory-errors/0.js index cf6c5039f..65ad3030d 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? \ No newline at end of file diff --git a/Sprint-1/2-mandatory-errors/1.js b/Sprint-1/2-mandatory-errors/1.js index 7a43cbea7..031839b47 100644 --- a/Sprint-1/2-mandatory-errors/1.js +++ b/Sprint-1/2-mandatory-errors/1.js @@ -1,4 +1,4 @@ // trying to create an age variable and then reassign the value by 1 -const age = 33; +let age = 33; age = age + 1; diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js index e09b89831..876629966 100644 --- a/Sprint-1/2-mandatory-errors/2.js +++ b/Sprint-1/2-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"; +console.log(`I was born in ${cityOfBirth}`); +//const cityOfBirth = "Bolton"; + +// the error is that cityOfBirth varaible declared after the logging command \ No newline at end of file diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js index ec101884d..01b95531d 100644 --- a/Sprint-1/2-mandatory-errors/3.js +++ b/Sprint-1/2-mandatory-errors/3.js @@ -1,5 +1,5 @@ const cardNumber = 4533787178994213; -const last4Digits = cardNumber.slice(-4); +//const last4Digits = cardNumber.slice(-4); // The last4Digits variable should store the last 4 digits of cardNumber // However, the code isn't working @@ -7,3 +7,6 @@ const last4Digits = cardNumber.slice(-4); // Then run the code and see what error it gives. // Consider: Why does it give this error? Is this what I predicted? If not, what's different? // Then try updating the expression last4Digits is assigned to, in order to get the correct value + +// I predicted the last four digits bit it has to be a string in order to use the method slice and that explain why it wasn't working +const last4Digits = cardNumber.toString.slice(-4); \ No newline at end of file diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js index 21dad8c5d..f0ab94e12 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 twelveHourClockTime = "20:53"; +const twentyFourHourClockTime = "08:53"; \ No newline at end of file From c77e1c30280d8eeee2199118810385b28be23f62 Mon Sep 17 00:00:00 2001 From: Ebrahim_Moqbel Date: Wed, 25 Feb 2026 23:55:46 +0000 Subject: [PATCH 4/9] interpreting the programs --- .../1-percentage-change.js | 18 +++++++++++++++++- .../3-mandatory-interpret/2-time-format.js | 18 +++++++++++++++++- Sprint-1/3-mandatory-interpret/3-to-pounds.js | 18 ++++++++++++++++++ 3 files changed, 52 insertions(+), 2 deletions(-) diff --git a/Sprint-1/3-mandatory-interpret/1-percentage-change.js b/Sprint-1/3-mandatory-interpret/1-percentage-change.js index e24ecb8e1..5b036d6c1 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 +12,27 @@ 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 +//1-carPrice.replaceAll(",", "") in line 4 +//3-number(...) in line 4 - enumerate the first result of replaceAll +//2-priceAfterOneYear.replaceAll("," ,"")) in line 5 +//4-number(...) in line 5 - enumerate the second result of replaceAll +//5-console.log(..) - line 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? +// the error is : a syntax error coming from the missing comma in line 5 between the arguments + + // c) Identify all the lines that are variable reassignment statements +// const priceDifference = carPrice - priceAfterOneYear; Line 7 +// const percentageChange = (priceDifference / carPrice) * 100; Line 8 // d) Identify all the lines that are variable declarations +// carPrice = Number(carPrice.replaceAll(",", "")); Line 4 +// priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", "")); Line 5 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression? +// the number function convert the enumerate a string to a number and the method replaceAll replace ever comma with a space +// the purpose is to clean the value so that it can be converted to a proper number using Number(). + diff --git a/Sprint-1/3-mandatory-interpret/2-time-format.js b/Sprint-1/3-mandatory-interpret/2-time-format.js index 47d239558..b993fcd03 100644 --- a/Sprint-1/3-mandatory-interpret/2-time-format.js +++ b/Sprint-1/3-mandatory-interpret/2-time-format.js @@ -1,4 +1,5 @@ -const movieLength = 8784; // length of movie in seconds + +const movieLength = -8789; // length of movie in seconds const remainingSeconds = movieLength % 60; const totalMinutes = (movieLength - remainingSeconds) / 60; @@ -12,14 +13,29 @@ 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 5 variable declarations // b) How many function calls are there? +// There are 4 function calls in line 9 and 10 // c) Using documentation, explain what the expression movieLength % 60 represents // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators +// % is a modulo operator that return the remainder of a multiplied number // d) Interpret line 4, what does the expression assigned to totalMinutes mean? +// movieLength subtract the left over seconds from the total seconds(movieLength) to get a number that is divisible by 60 +// when dividing by 60 would convert the remaining seconds into whole minutes which ensures there is no decimal in totalMinutes + // e) What do you think the variable result represents? Can you think of a better name for this variable? +// results present length of movie formatted as Hours:Minutes:Seconds and a better name could be movieDuration + // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer + +// whole positive value: for the 8789 seconds the formatted duration would be fine 2:26:29 and the code would be working as expected +// under 60 seconds: 59 seconds would assign the hours and minutes both as 0s resulting 0:0:59 instead of the normal formatted way 00:00:59 but still correct +// zero value: the formatted duration would also be correct 0:0:0 even though it is an unusual value it still show that it can handle it +// Negative value: for the -8789 seconds would give us an output of -2:-26:-29 which is not a valid format and doesn't make any sense +// the logic breaks where we need to give the user a message to enter a valid number +// diff --git a/Sprint-1/3-mandatory-interpret/3-to-pounds.js b/Sprint-1/3-mandatory-interpret/3-to-pounds.js index 60c9ace69..08fad0d5f 100644 --- a/Sprint-1/3-mandatory-interpret/3-to-pounds.js +++ b/Sprint-1/3-mandatory-interpret/3-to-pounds.js @@ -23,5 +23,23 @@ console.log(`£${pounds}.${pence}`); // You need to do a step-by-step breakdown of each line in this program // Try and describe the purpose / rationale behind each step + // To begin, we can start with // 1. const penceString = "399p": initialises a string variable with the value "399p" + +// 2. const penceStringWithoutTrailingP = penceString.substring(0,penceString.length - 1); reassigned a new value +// using the method substring starting form the index 0 ="3" and ending with -1 exclusively meaning doesn't include 'p' +// resulting with a numeric part of the price which is '399' + +//3.const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0"); +// ensure the number in a 3 digits format by adding zeros minding the consistency of the formatting. + +//4.const pounds = paddedPenceNumberString.substring(0,paddedPenceNumberString.length - 2); +//extracts everything except the last two number to form the pound portion of the price + +//5.const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0"); +//extracts the last two digits to form the pence portion of the price and the padEnd method ensure the number in a two digits format consistent + +//6.console.log(`£${pounds}.${pence}`); +//Combines everything into the final formatted price string. Result: £3.99 +//basically the program will take the string "399p" and print out a string of "£3.99" \ No newline at end of file From e829acff86c65d913ef5a54cdc0f5bc8abdd1508 Mon Sep 17 00:00:00 2001 From: Ebrahim_Moqbel Date: Thu, 26 Feb 2026 00:22:36 +0000 Subject: [PATCH 5/9] explored console in the developer tools and answered some Qs --- Sprint-1/4-stretch-explore/chrome.md | 5 ++++- Sprint-1/4-stretch-explore/objects.md | 4 ++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/Sprint-1/4-stretch-explore/chrome.md b/Sprint-1/4-stretch-explore/chrome.md index e7dd5feaf..f635079c6 100644 --- a/Sprint-1/4-stretch-explore/chrome.md +++ b/Sprint-1/4-stretch-explore/chrome.md @@ -11,8 +11,11 @@ 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 on the middle top of the page with a sting "Hello world!" Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`. What effect does calling the `prompt` function have? -What is the return value of `prompt`? +It shows a pop up box message with the sting "What is your name?" as an input in the middle top of the page +What is the return value of `prompt`? +it returns the text the user enters or an empty string if enter nothing in case cancel would return null diff --git a/Sprint-1/4-stretch-explore/objects.md b/Sprint-1/4-stretch-explore/objects.md index 0216dee56..0da365f99 100644 --- a/Sprint-1/4-stretch-explore/objects.md +++ b/Sprint-1/4-stretch-explore/objects.md @@ -5,12 +5,16 @@ 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? +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` Answer the following questions: What does `console` store? +The console stores the 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? +"." is called a dot notation where we can get access sth that belong to an object and the syntax means that we are accessing the methods that belong to the object console. \ No newline at end of file From 14fee9ab69336b64ae3a77968f293bfeac142e02 Mon Sep 17 00:00:00 2001 From: Ebrahim_Moqbel Date: Thu, 26 Feb 2026 21:31:55 +0000 Subject: [PATCH 6/9] answered the exercises of the key errors and debug the mandatory file --- Sprint-2/1-key-errors/0.js | 26 ++++++++++++++++---- Sprint-2/1-key-errors/1.js | 29 ++++++++++++++++------ Sprint-2/1-key-errors/2.js | 12 +++++++--- Sprint-2/2-mandatory-debug/0.js | 17 +++++++++---- Sprint-2/2-mandatory-debug/1.js | 20 +++++++++++----- Sprint-2/2-mandatory-debug/2.js | 32 +++++++++++++++++++------ Sprint-2/3-mandatory-implement/1-bmi.js | 7 +++++- 7 files changed, 110 insertions(+), 33 deletions(-) diff --git a/Sprint-2/1-key-errors/0.js b/Sprint-2/1-key-errors/0.js index 653d6f5a0..69142c85f 100644 --- a/Sprint-2/1-key-errors/0.js +++ b/Sprint-2/1-key-errors/0.js @@ -1,13 +1,29 @@ // Predict and explain first... // =============> write your prediction here +//function capitalize will capitalise the first letter with index 0 +// and will append the sliced string from index 1 which is the second letter // call the function capitalise with a string input + // interpret the error message and figure out why an error is occurring +//syntax Error :identifier the variabel has already been declared. +// As we can see the str variable has already been declared in the prameter of the function instead we just return the value +// The Error message is -function capitalise(str) { - let str = `${str[0].toUpperCase()}${str.slice(1)}`; - return str; -} +// function capitalise(str) { +// let str = `${str[0].toUpperCase()}${str.slice(1)}`; +// console.log(str); +// return str; +// } + + +// =============> write your explanation here -// =============> write your explanation here // =============> write your new code here + +function capitalise(str) { +return `${str[0].toUpperCase()}${str.slice(1)}`; + +} +capitalise("ebrahim"); +capitalise('salomi'); diff --git a/Sprint-2/1-key-errors/1.js b/Sprint-2/1-key-errors/1.js index f2d56151f..78fe0ad0c 100644 --- a/Sprint-2/1-key-errors/1.js +++ b/Sprint-2/1-key-errors/1.js @@ -1,20 +1,35 @@ // Predict and explain first... + // Why will an error occur when this program runs? // =============> write your prediction here +//1- The function is trying to declare the decimalNumber twice in the perameter and later as a new variable +//2-console.log() is printing a variable in the local scope where it can't be accessed as it is inside the function + // Try playing computer with the example to work out what is going on -function convertToPercentage(decimalNumber) { - const decimalNumber = 0.5; - const percentage = `${decimalNumber * 100}%`; +// function convertToPercentage(decimalNumber) { +// const decimalNumber = 0.5; +// const percentage = `${decimalNumber * 100}%`; + +// return percentage; +// } - return percentage; -} -console.log(decimalNumber); -// =============> write your explanation here +// =============> write your explanation here +//similar to the previous exercise where the variable decimal Number has already been declared in the parameter +// and already is a local variable which can't be declared again +//As the decimalNumber inside the function we can't print it using the console.log() as it has no power to the local scope +//instead we can delete the second declaration and just leave the parameter as an input for the user which would be nicely work // Finally, correct the code to fix the problem + // =============> write your new code here +function convertToPercentage(decimalNumber) { + const percentage = `${decimalNumber * 100}%`; +return percentage; +} + +console.log(convertToPercentage(0.5)); diff --git a/Sprint-2/1-key-errors/2.js b/Sprint-2/1-key-errors/2.js index aad57f7cf..83aebfc22 100644 --- a/Sprint-2/1-key-errors/2.js +++ b/Sprint-2/1-key-errors/2.js @@ -4,16 +4,22 @@ // this function should square any number but instead we're going to get an error // =============> write your prediction of the error here +//The error might be accuring because the parameter can't be a number and should be a variable -function square(3) { - return num * num; -} +// function square(3) { +// return num * num; +// } // =============> write the error message here +//the Error is a syntax error: Unexpected number // =============> explain this error message here +// we can put a number or any argument when we call the number not when we shape it // Finally, correct the code to fix the problem +function square(num) { + return num * num; + } // =============> write your new code here diff --git a/Sprint-2/2-mandatory-debug/0.js b/Sprint-2/2-mandatory-debug/0.js index b27511b41..9f36c2f46 100644 --- a/Sprint-2/2-mandatory-debug/0.js +++ b/Sprint-2/2-mandatory-debug/0.js @@ -1,14 +1,23 @@ // Predict and explain first... // =============> write your prediction here +// This function would multiply the two arguments a and b whatever that is +// when we log the output we will get the string and the output of the function but because we are not returning an output we might run into an error -function multiply(a, b) { - console.log(a * b); -} +// function multiply(a, b) { +// console.log(a * b); +// } -console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`); +// console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`); // =============> write your explanation here +//The console.log() inside the funtion will print a*b but when we call the function will return() undefined means will return nothing)for the two variables a and b // Finally, correct the code to fix the problem // =============> write your new code here +function multiply(a, b) { + return a * b; +} + +console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`); + diff --git a/Sprint-2/2-mandatory-debug/1.js b/Sprint-2/2-mandatory-debug/1.js index 37cedfbcf..fa992a8ef 100644 --- a/Sprint-2/2-mandatory-debug/1.js +++ b/Sprint-2/2-mandatory-debug/1.js @@ -1,13 +1,21 @@ // Predict and explain first... // =============> write your prediction here +// The function suppose to return the sum of the two variables but we will encounter an error probably a syntax Error -function sum(a, b) { - return; - a + b; -} - -console.log(`The sum of 10 and 32 is ${sum(10, 32)}`); +// function sum(a, b) { +// return; +// a + b; +// } +// console.log(`The sum of 10 and 32 is ${sum(10, 32)}`); +// As we return nothing by closing the line with a semicolon hence a + b is not returned where we tell the computer to exit and go back to global scope and the computer will not be able to read the lines after that // =============> write your explanation here + // Finally, correct the code to fix the problem // =============> write your new code here + +function sum(a, b) { + return a + b; +} + +console.log(`The sum of 10 and 32 is ${sum(10, 32)}`); diff --git a/Sprint-2/2-mandatory-debug/2.js b/Sprint-2/2-mandatory-debug/2.js index 57d3f5dc3..1b897f8f1 100644 --- a/Sprint-2/2-mandatory-debug/2.js +++ b/Sprint-2/2-mandatory-debug/2.js @@ -2,23 +2,41 @@ // Predict the output of the following code: // =============> Write your prediction here +//getLastDigit will convert a number to a string and reverse it +// However, since there is no parameter or local variable we might run into an Error -const num = 103; +// const num = 103; -function getLastDigit() { - return num.toString().slice(-1); -} +// function getLastDigit() { +// return num.toString().slice(-1); +// } -console.log(`The last digit of 42 is ${getLastDigit(42)}`); -console.log(`The last digit of 105 is ${getLastDigit(105)}`); -console.log(`The last digit of 806 is ${getLastDigit(806)}`); +// console.log(`The last digit of 42 is ${getLastDigit(42)}`); +// console.log(`The last digit of 105 is ${getLastDigit(105)}`); +// console.log(`The last digit of 806 is ${getLastDigit(806)}`); // Now run the code and compare the output to your prediction // =============> write the output here +// The last digit of 42 is 3 +// The last digit of 105 is 3 +// The last digit of 806 is 3 // Explain why the output is the way it is // =============> write your explanation here +// As expected, the function has no parameters, so it relies on the global variable "num" as its only variable. +// Since there are no parameters defined, the function permanently uses the global variable instead. +// This means even if we pass arguments when calling the function, they will be ignored because there are no parameters to receive them. + // Finally, correct the code to fix the problem // =============> write your new code here +function getLastDigit(num) { + return num.toString().slice(-1); + } + + console.log(`The last digit of 42 is ${getLastDigit(42)}`); + console.log(`The last digit of 105 is ${getLastDigit(105)}`); + console.log(`The last digit of 806 is ${getLastDigit(806)}`); + + // This program should tell the user the last digit of each number. // Explain why getLastDigit is not working properly - correct the problem diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js index 17b1cbde1..a05e815ec 100644 --- a/Sprint-2/3-mandatory-implement/1-bmi.js +++ b/Sprint-2/3-mandatory-implement/1-bmi.js @@ -15,5 +15,10 @@ // It should return their Body Mass Index to 1 decimal place function calculateBMI(weight, height) { + let result = weight / (height*height); + return result.toFixed(1); + // return the BMI of someone based off their weight and height -} \ No newline at end of file +} + +console.log(calculateBMI(70,168)) \ No newline at end of file From d4240708f22726b1eb57b22c673933277fe8b1bc Mon Sep 17 00:00:00 2001 From: Ebrahim_Moqbel Date: Fri, 27 Feb 2026 15:10:09 +0000 Subject: [PATCH 7/9] solved the 3-mandatory implement file --- Sprint-2/3-mandatory-implement/1-bmi.js | 7 ++++--- Sprint-2/3-mandatory-implement/2-cases.js | 6 ++++++ Sprint-2/3-mandatory-implement/3-to-pounds.js | 21 +++++++++++++++++++ 3 files changed, 31 insertions(+), 3 deletions(-) diff --git a/Sprint-2/3-mandatory-implement/1-bmi.js b/Sprint-2/3-mandatory-implement/1-bmi.js index a05e815ec..9b759d6dd 100644 --- a/Sprint-2/3-mandatory-implement/1-bmi.js +++ b/Sprint-2/3-mandatory-implement/1-bmi.js @@ -15,10 +15,11 @@ // It should return their Body Mass Index to 1 decimal place function calculateBMI(weight, height) { - let result = weight / (height*height); + let result = Number(weight/(height*height)); return result.toFixed(1); - // return the BMI of someone based off their weight and height + } -console.log(calculateBMI(70,168)) \ No newline at end of file +console.log(calculateBMI(70,1.7)) +console.log(calculateBMI(72,1.7)) diff --git a/Sprint-2/3-mandatory-implement/2-cases.js b/Sprint-2/3-mandatory-implement/2-cases.js index 5b0ef77ad..d035a53b1 100644 --- a/Sprint-2/3-mandatory-implement/2-cases.js +++ b/Sprint-2/3-mandatory-implement/2-cases.js @@ -14,3 +14,9 @@ // You will need to come up with an appropriate name for the function // Use the MDN string documentation to help you find a solution // This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase +function toUpperSnakeFormat(string){ + return string.toUpperCase().replaceAll(" ","_") + +} +console.log(toUpperSnakeFormat("hello there")) +console.log(toUpperSnakeFormat("lord of the rings")) \ No newline at end of file diff --git a/Sprint-2/3-mandatory-implement/3-to-pounds.js b/Sprint-2/3-mandatory-implement/3-to-pounds.js index 6265a1a70..6d6d0502c 100644 --- a/Sprint-2/3-mandatory-implement/3-to-pounds.js +++ b/Sprint-2/3-mandatory-implement/3-to-pounds.js @@ -4,3 +4,24 @@ // You will need to declare a function called toPounds with an appropriately named parameter. // You should call this function a number of times to check it works for different inputs + function toPounds(penceString){ + 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"); + return `£${pounds}.${pence}` + } + + +console.log(toPounds('987p')); +console.log(toPounds('909p')); +console.log(toPounds('345p')); \ No newline at end of file From 2eaa8513fb8cec5b09b0494900b689fc2f02304b Mon Sep 17 00:00:00 2001 From: Ebrahim_Moqbel Date: Fri, 27 Feb 2026 16:04:23 +0000 Subject: [PATCH 8/9] solved the mandatory interpret --- Sprint-2/4-mandatory-interpret/time-format.js | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/Sprint-2/4-mandatory-interpret/time-format.js b/Sprint-2/4-mandatory-interpret/time-format.js index 7c98eb0e8..4d01b1681 100644 --- a/Sprint-2/4-mandatory-interpret/time-format.js +++ b/Sprint-2/4-mandatory-interpret/time-format.js @@ -11,24 +11,28 @@ function formatTimeDisplay(seconds) { return `${pad(totalHours)}:${pad(remainingMinutes)}:${pad(remainingSeconds)}`; } +console.log(formatTimeDisplay(60)) // You will need to play computer with this example - use the Python Visualiser https://pythontutor.com/visualize.html#mode=edit // to help you answer these questions // Questions // a) When formatTimeDisplay is called how many times will pad be called? -// =============> write your answer here +// =============> 3 times // Call formatTimeDisplay with an input of 61, now answer the following: // b) What is the value assigned to num when pad is called for the first time? -// =============> write your answer here +// =============> the first time pad was called with the totalHours // c) What is the return value of pad is called for the first time? -// =============> write your answer here +// =============> "00" + // d) What is the value assigned to num when pad is called for the last time in this program? Explain your answer -// =============> write your answer here +// =============> "1" +// the last time, pad() is called with the remaining seconds which is value "1" // e) What is the return value assigned to num when pad is called for the last time in this program? Explain your answer -// =============> write your answer here +// =============> "01" +// When it is call for the last time it adds 0 before 1 to make it 2 characters long From 1c37d582297fee30f5297f88f174a1902ea42452 Mon Sep 17 00:00:00 2001 From: Ebrahim_Moqbel Date: Sat, 28 Feb 2026 01:26:11 +0000 Subject: [PATCH 9/9] Deleted the changes of the sprint one file to meet the mata Data validation --- Sprint-1/1-key-exercises/1-count.js | 2 -- Sprint-1/1-key-exercises/2-initials.js | 4 ++-- Sprint-1/1-key-exercises/3-paths.js | 9 ++++----- Sprint-1/1-key-exercises/4-random.js | 7 ------- Sprint-1/2-mandatory-errors/0.js | 4 ++-- Sprint-1/2-mandatory-errors/1.js | 2 +- Sprint-1/2-mandatory-errors/2.js | 5 +---- Sprint-1/2-mandatory-errors/3.js | 5 +---- Sprint-1/2-mandatory-errors/4.js | 4 ++-- .../1-percentage-change.js | 18 +----------------- .../3-mandatory-interpret/2-time-format.js | 18 +----------------- Sprint-1/3-mandatory-interpret/3-to-pounds.js | 18 ------------------ Sprint-1/4-stretch-explore/chrome.md | 5 +---- Sprint-1/4-stretch-explore/objects.md | 4 ---- 14 files changed, 16 insertions(+), 89 deletions(-) diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js index 0d9c8a880..117bcb2b6 100644 --- a/Sprint-1/1-key-exercises/1-count.js +++ b/Sprint-1/1-key-exercises/1-count.js @@ -4,5 +4,3 @@ 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 - -// Line 3 is an assignment where = is an assignment operator and in there we are adding value of 1 to the count variable diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js index f6b16b322..47561f617 100644 --- a/Sprint-1/1-key-exercises/2-initials.js +++ b/Sprint-1/1-key-exercises/2-initials.js @@ -6,6 +6,6 @@ let lastName = "Johnson"; // 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 = ``; -console.log(`the initials is ${firstName.charAt(0)}, ${middleName.charAt(0), lastName.charAt(0)}`); -// https://www.google.com/search?q=get+first+character+of+string+mdn \ No newline at end of file +// https://www.google.com/search?q=get+first+character+of+string+mdn + diff --git a/Sprint-1/1-key-exercises/3-paths.js b/Sprint-1/1-key-exercises/3-paths.js index 0014c33ed..ab90ebb28 100644 --- a/Sprint-1/1-key-exercises/3-paths.js +++ b/Sprint-1/1-key-exercises/3-paths.js @@ -15,10 +15,9 @@ 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 +// Create a variable to store the ext part of the variable -const dir = filePath.slice(0, lastSlashIndex); -const ext = filePath.slice(filePath.lastIndexOf(".")); +const dir = ; +const ext = ; - -// https://www.google.com/search?q=slice+mdn \ No newline at end of file +// https://www.google.com/search?q=slice+mdn \ No newline at end of file diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js index 87c0e721d..292f83aab 100644 --- a/Sprint-1/1-key-exercises/4-random.js +++ b/Sprint-1/1-key-exercises/4-random.js @@ -7,10 +7,3 @@ const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum; // Try breaking down the expression and using documentation to explain what it means // It will help to think about the order in which expressions are evaluated // Try logging the value of num and running the program several times to build an idea of what the program is doing - -// math.floor will make the number as a whole and remove any decimals or more likely to round the the nearest whole number -// math.random will generate a random number from 0 to 1 but not 1 -// (maximum - minimum + 1) provide a range of generated random number -// num is a random whole number between 1 and 100 - -console.log(num); \ No newline at end of file diff --git a/Sprint-1/2-mandatory-errors/0.js b/Sprint-1/2-mandatory-errors/0.js index 65ad3030d..cf6c5039f 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? \ No newline at end of file diff --git a/Sprint-1/2-mandatory-errors/1.js b/Sprint-1/2-mandatory-errors/1.js index 031839b47..7a43cbea7 100644 --- a/Sprint-1/2-mandatory-errors/1.js +++ b/Sprint-1/2-mandatory-errors/1.js @@ -1,4 +1,4 @@ // trying to create an age variable and then reassign the value by 1 -let age = 33; +const age = 33; age = age + 1; diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js index 876629966..e09b89831 100644 --- a/Sprint-1/2-mandatory-errors/2.js +++ b/Sprint-1/2-mandatory-errors/2.js @@ -1,8 +1,5 @@ // 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}`); -//const cityOfBirth = "Bolton"; - -// the error is that cityOfBirth varaible declared after the logging command \ No newline at end of file +const cityOfBirth = "Bolton"; diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js index 01b95531d..ec101884d 100644 --- a/Sprint-1/2-mandatory-errors/3.js +++ b/Sprint-1/2-mandatory-errors/3.js @@ -1,5 +1,5 @@ const cardNumber = 4533787178994213; -//const last4Digits = cardNumber.slice(-4); +const last4Digits = cardNumber.slice(-4); // The last4Digits variable should store the last 4 digits of cardNumber // However, the code isn't working @@ -7,6 +7,3 @@ const cardNumber = 4533787178994213; // 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 - -// I predicted the last four digits bit it has to be a string in order to use the method slice and that explain why it wasn't working -const last4Digits = cardNumber.toString.slice(-4); \ No newline at end of file diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js index f0ab94e12..21dad8c5d 100644 --- a/Sprint-1/2-mandatory-errors/4.js +++ b/Sprint-1/2-mandatory-errors/4.js @@ -1,2 +1,2 @@ -const twelveHourClockTime = "20:53"; -const twentyFourHourClockTime = "08:53"; \ No newline at end of file +const 12HourClockTime = "20:53"; +const 24hourClockTime = "08:53"; \ No newline at end of file diff --git a/Sprint-1/3-mandatory-interpret/1-percentage-change.js b/Sprint-1/3-mandatory-interpret/1-percentage-change.js index 5b036d6c1..e24ecb8e1 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; @@ -12,27 +12,11 @@ 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 -//1-carPrice.replaceAll(",", "") in line 4 -//3-number(...) in line 4 - enumerate the first result of replaceAll -//2-priceAfterOneYear.replaceAll("," ,"")) in line 5 -//4-number(...) in line 5 - enumerate the second result of replaceAll -//5-console.log(..) - line 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? -// the error is : a syntax error coming from the missing comma in line 5 between the arguments - - // c) Identify all the lines that are variable reassignment statements -// const priceDifference = carPrice - priceAfterOneYear; Line 7 -// const percentageChange = (priceDifference / carPrice) * 100; Line 8 // d) Identify all the lines that are variable declarations -// carPrice = Number(carPrice.replaceAll(",", "")); Line 4 -// priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", "")); Line 5 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression? -// the number function convert the enumerate a string to a number and the method replaceAll replace ever comma with a space -// the purpose is to clean the value so that it can be converted to a proper number using Number(). - diff --git a/Sprint-1/3-mandatory-interpret/2-time-format.js b/Sprint-1/3-mandatory-interpret/2-time-format.js index b993fcd03..47d239558 100644 --- a/Sprint-1/3-mandatory-interpret/2-time-format.js +++ b/Sprint-1/3-mandatory-interpret/2-time-format.js @@ -1,5 +1,4 @@ - -const movieLength = -8789; // length of movie in seconds +const movieLength = 8784; // length of movie in seconds const remainingSeconds = movieLength % 60; const totalMinutes = (movieLength - remainingSeconds) / 60; @@ -13,29 +12,14 @@ 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 5 variable declarations // b) How many function calls are there? -// There are 4 function calls in line 9 and 10 // c) Using documentation, explain what the expression movieLength % 60 represents // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators -// % is a modulo operator that return the remainder of a multiplied number // d) Interpret line 4, what does the expression assigned to totalMinutes mean? -// movieLength subtract the left over seconds from the total seconds(movieLength) to get a number that is divisible by 60 -// when dividing by 60 would convert the remaining seconds into whole minutes which ensures there is no decimal in totalMinutes - // e) What do you think the variable result represents? Can you think of a better name for this variable? -// results present length of movie formatted as Hours:Minutes:Seconds and a better name could be movieDuration - // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer - -// whole positive value: for the 8789 seconds the formatted duration would be fine 2:26:29 and the code would be working as expected -// under 60 seconds: 59 seconds would assign the hours and minutes both as 0s resulting 0:0:59 instead of the normal formatted way 00:00:59 but still correct -// zero value: the formatted duration would also be correct 0:0:0 even though it is an unusual value it still show that it can handle it -// Negative value: for the -8789 seconds would give us an output of -2:-26:-29 which is not a valid format and doesn't make any sense -// the logic breaks where we need to give the user a message to enter a valid number -// diff --git a/Sprint-1/3-mandatory-interpret/3-to-pounds.js b/Sprint-1/3-mandatory-interpret/3-to-pounds.js index 08fad0d5f..60c9ace69 100644 --- a/Sprint-1/3-mandatory-interpret/3-to-pounds.js +++ b/Sprint-1/3-mandatory-interpret/3-to-pounds.js @@ -23,23 +23,5 @@ console.log(`£${pounds}.${pence}`); // You need to do a step-by-step breakdown of each line in this program // Try and describe the purpose / rationale behind each step - // To begin, we can start with // 1. const penceString = "399p": initialises a string variable with the value "399p" - -// 2. const penceStringWithoutTrailingP = penceString.substring(0,penceString.length - 1); reassigned a new value -// using the method substring starting form the index 0 ="3" and ending with -1 exclusively meaning doesn't include 'p' -// resulting with a numeric part of the price which is '399' - -//3.const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0"); -// ensure the number in a 3 digits format by adding zeros minding the consistency of the formatting. - -//4.const pounds = paddedPenceNumberString.substring(0,paddedPenceNumberString.length - 2); -//extracts everything except the last two number to form the pound portion of the price - -//5.const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0"); -//extracts the last two digits to form the pence portion of the price and the padEnd method ensure the number in a two digits format consistent - -//6.console.log(`£${pounds}.${pence}`); -//Combines everything into the final formatted price string. Result: £3.99 -//basically the program will take the string "399p" and print out a string of "£3.99" \ No newline at end of file diff --git a/Sprint-1/4-stretch-explore/chrome.md b/Sprint-1/4-stretch-explore/chrome.md index f635079c6..e7dd5feaf 100644 --- a/Sprint-1/4-stretch-explore/chrome.md +++ b/Sprint-1/4-stretch-explore/chrome.md @@ -11,11 +11,8 @@ 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 on the middle top of the page with a sting "Hello world!" Now try invoking the function `prompt` with a string input of `"What is your name?"` - store the return value of your call to `prompt` in an variable called `myName`. What effect does calling the `prompt` function have? -It shows a pop up box message with the sting "What is your name?" as an input in the middle top of the page -What is the return value of `prompt`? -it returns the text the user enters or an empty string if enter nothing in case cancel would return null +What is the return value of `prompt`? diff --git a/Sprint-1/4-stretch-explore/objects.md b/Sprint-1/4-stretch-explore/objects.md index 0da365f99..0216dee56 100644 --- a/Sprint-1/4-stretch-explore/objects.md +++ b/Sprint-1/4-stretch-explore/objects.md @@ -5,16 +5,12 @@ 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? -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` Answer the following questions: What does `console` store? -The console stores the 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? -"." is called a dot notation where we can get access sth that belong to an object and the syntax means that we are accessing the methods that belong to the object console. \ No newline at end of file