Barcelona | Class-Oct2025-1| Gbemisola IKuegbuwa | Sprint-3 | Structuring-And-Testing-Data Coursework/sprint-3

Sprint-1/1-key-exercises/1-count.js

@@ -3,4 +3,4 @@ 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
+// Describe what line 3 is doing, in particular focus on what = is doing

Sprint-1/1-key-exercises/2-initials.js

@@ -8,4 +8,3 @@ let lastName = "Johnson";
 let initials = ``;
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn
-

Sprint-1/1-key-exercises/3-paths.js

@@ -15,9 +15,13 @@ 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
+const dir = filePath.slice(0, lastSlashIndex);
+
 // Create a variable to store the ext part of the variable
+const extIndex = base.lastIndexOf(".");
+const ext = base.slice(extIndex + 1);
 
-const dir = ;
-const ext = ;
+console.log(`The directory part is ${dir}`);
+console.log(`The extension part is ${ext}`);
 
 // https://www.google.com/search?q=slice+mdn

Sprint-1/1-key-exercises/4-random.js

@@ -6,4 +6,4 @@ 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
+// Try logging the value of num and running the program several times to build an idea of what the program is doing

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?
+We don't want the computer to run these 2 lines - how can we solve this problem? 

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;
-age = age + 1;
+age = age + 1;

Sprint-1/2-mandatory-errors/2.js

@@ -2,4 +2,4 @@
 // what's the error ?
 
 console.log(`I was born in ${cityOfBirth}`);
-const cityOfBirth = "Bolton";
+const cityOfBirth = "Bolton";

Sprint-1/2-mandatory-errors/3.js

@@ -6,4 +6,4 @@ const last4Digits = cardNumber.slice(-4);
 // 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
+// Then try updating the expression last4Digits is assigned to, in order to get the correct value

Sprint-1/2-mandatory-errors/4.js

@@ -1,2 +1,2 @@
-const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
+const hour12ClockTime = "20:53";  // Changed to start with a letter
+const hour24ClockTime = "08:53";  // Also changed for consistency

Sprint-1/3-mandatory-interpret/1-percentage-change.js

@@ -1,22 +1,2 @@
-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?
+// 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

Sprint-1/3-mandatory-interpret/2-time-format.js

@@ -22,4 +22,4 @@ console.log(result);
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
 
-// f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
+// f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer

Sprint-1/3-mandatory-interpret/3-to-pounds.js

@@ -24,4 +24,18 @@ console.log(`£${pounds}.${pence}`);
 // 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"
+// 1. const penceString = "399p": initialize a string variable with the value "399p"
+
+// 3. const penceStringWithoutTrailingP = penceString.substring(0, penceString.length -1); 
+// cleaning the trailing P character. it uses the string´s length minus 1 as the end index for substring(), this leave only the numeric value while drop the last character.
+
+// 8. const paddedPenceNumberString = penceStringWithoutTrailingP.padStar(3, "0"); Padding- ensure the numeric string is at least three characters long by prepending zeros. 
+// this is important for separating pounds from pence especially when values is less than 100p
+
+// 9. const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length - 2); Extracting pounds component, this uses substring() 
+// to take all character from the start (index 0) up to, but not including the last two characters, they are always pence.
+
+// 14. const pence = paddedPenceNumberString.substring(paddedPenceNumberString.length - 2).padEnd(2, "0"); Extracting and formatting price- 
+// Extracts the pence component (the last two digits) and ensures they are always two digits long by padding the end with a zero if needed (though not needed for "99").
+
+// 18. console.log(\£${pounds}.${pence}`);` Output: Format the extracted components into the standard currency display £3.99. 

Sprint-1/4-stretch-explore/chrome.md

@@ -15,4 +15,4 @@ 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`?
+What is the return value of `prompt`?

Sprint-1/4-stretch-explore/objects.md

@@ -13,4 +13,4 @@ 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?
+What does the syntax `console.log` or `console.assert` mean? In particular, what does the `.` mean?

Sprint-2/1-key-errors/0.js

@@ -10,4 +10,4 @@ function capitalise(str) {
 }
 
 // =============> write your explanation here
-// =============> write your new code here
+// =============> write your new code here

Sprint-2/1-key-errors/1.js

@@ -17,4 +17,4 @@ console.log(decimalNumber);
 // =============> write your explanation here
 
 // Finally, correct the code to fix the problem
-// =============> write your new code here
+// =============> write your new code here

Sprint-2/1-key-errors/2.js

@@ -1,20 +1,14 @@
+// Predict and explain first...
 
-// Predict and explain first BEFORE you run any code...
+// =============> write your prediction here
 
-// this function should square any number but instead we're going to get an error
-
-// =============> write your prediction of the error here
-
-function square(3) {
-    return num * num;
+function multiply(a, b) {
+  console.log(a * b);
 }
 
-// =============> write the error message here
+console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
-// =============> explain this error message here
+// =============> write your explanation here
 
 // Finally, correct the code to fix the problem
-
-// =============> write your new code here
-
-
+//  =============> write your new code here

Sprint-2/2-mandatory-debug/1.js

@@ -10,4 +10,4 @@ console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
 
 // =============> write your explanation here
 // Finally, correct the code to fix the problem
-//  =============> write your new code here
+//  =============> write your new code here

Sprint-2/2-mandatory-debug/2.js

@@ -21,4 +21,4 @@ console.log(`The last digit of 806 is ${getLastDigit(806)}`);
 // =============> write your new code here
 
 // This program should tell the user the last digit of each number.
-// Explain why getLastDigit is not working properly - correct the problem
+// Explain why getLastDigit is not working properly - correct the problem

Sprint-2/3-mandatory-implement/1-bmi.js

@@ -6,7 +6,7 @@
 
 // squaring your height: 1.73 x 1.73 = 2.99
 // dividing 70 by 2.99 = 23.41
-// Your result will be displayed to 1 decimal place, for example 23.4.
+// Your result will be displayed to 1 decimal place, for example 23.4
 
 // You will need to implement a function that calculates the BMI of someone based off their weight and height
 
@@ -15,5 +15,5 @@
 // It should return their Body Mass Index to 1 decimal place
 
 function calculateBMI(weight, height) {
-    // return the BMI of someone based off their weight and height
+// return the BMI of someone based off their weight and height
 }

Sprint-2/3-mandatory-implement/2-cases.js

@@ -13,4 +13,4 @@
 
 // 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
+// This might help https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/toUpperCase

Sprint-2/3-mandatory-implement/3-to-pounds.js

@@ -3,4 +3,4 @@
 // You will need to take this code and turn it into a reusable block of code.
 // 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
+// You should call this function a number of times to check it works for different inputs

Sprint-2/4-mandatory-interpret/time-format.js

@@ -11,7 +11,7 @@ function formatTimeDisplay(seconds) {
   return `${pad(totalHours)}:${pad(remainingMinutes)}:${pad(remainingSeconds)}`;
 }
 
-// You will need to play computer with this example - use the Python Visualiser https://pythontutor.com/visualize.html#mode=edit
+// You will need to play computer with this example - use the Python Visualizer https://pythontutor.com/visualize.html#mode=edit
 // to help you answer these questions
 
 // Questions
@@ -31,4 +31,4 @@ function formatTimeDisplay(seconds) {
 // =============> write your answer here
 
 // 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
+// =============> write your answer here

Sprint-2/5-stretch-extend/format-time.js

@@ -22,4 +22,4 @@ const targetOutput2 = "11:00 pm";
 console.assert(
   currentOutput2 === targetOutput2,
   `current output: ${currentOutput2}, target output: ${targetOutput2}`
-);
+);