Delete Sprint-1 folder

carlosyabreu · carlosyabreu · commit da83341169b3 · 2025-11-08T16:47:10.000Z
diff --git a/Sprint-1/1-key-exercises/1-count.js b/Sprint-1/1-key-exercises/1-count.js
@@ -4,10 +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 increase the count variable by 1 then assign the result in right hand side to count variable
- */
- 
-console.log('Value of count variable: ', count)
-
diff --git a/Sprint-1/1-key-exercises/2-initials.js b/Sprint-1/1-key-exercises/2-initials.js
@@ -5,9 +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 = `${firstName.charAt(0)}${middleName.charAt(0)}${lastName.charAt(0)}`;
-console.log(initials);
+let initials = ``;
 
 // 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
@@ -15,14 +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
-const dir = filePath.slice(0, lastSlashIndex);
-
 // Create a variable to store the ext part of the variable
-const lastDotIndex = filePath.lastIndexOf(".");
-const ext = filePath.slice(lastDotIndex);
-
-console.log(`The dir part of ${filePath} is ${dir}`);
-console.log(`The ext part of ${filePath} is ${ext}`);
 
+const dir = ;
+const ext = ;
 
-// https://www.google.com/search?q=slice+mdn
+// https://www.google.com/search?q=slice+mdn
diff --git a/Sprint-1/1-key-exercises/4-random.js b/Sprint-1/1-key-exercises/4-random.js
@@ -3,47 +3,7 @@ const maximum = 100;
 
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 
-console.log(num);
-
 // In this exercise, you will need to work out what num represents?
 // Try breaking down the expression and using documentation to explain what it means
 // It will help to think about the order in which expressions are evaluated
 // Try logging the value of num and running the program several times to build an idea of what the program is doing
-
-/**
- * Step 1: Math.random()
-
- * This generates a random decimal number between 0 (inclusive) and 1 (exclusive).
- * Example: 0.3728, 0.9134, etc.
-
- * Step 2: (maximum - minimum + 1)
-
- * This calculates the range of possible numbers you want.
- * Here: 100 - 1 + 1 = 100
- * So, we’re creating a range that includes both 1 and 100.
-
- * Step 3: Math.random() * (maximum - minimum + 1)
-
- * This scales the random decimal to the range.
- * Example: If Math.random() returns 0.3728,
- * 0.3728 * 100 = 37.28
-
- * Step 4: Math.floor(...)
-
- * Math.floor() rounds down to the nearest whole number.
- * So 37.28 becomes 37.
-
- * Step 5: + minimum
-
- * Because the range started from 0, we add minimum (which is 1) to shift it to the correct range.
-
- * Example: 37 + 1 = 38.
-
- * So what does num represent?
- * num is a random integer between 1 and 100 (inclusive).
- * Every time you run the program, you’ll get a different number in that range.
-
- * Running it several times — you’ll see numbers like 27, 99, 7, 100, etc.
-
-*/
-
diff --git a/Sprint-1/2-mandatory-errors/0.js b/Sprint-1/2-mandatory-errors/0.js
@@ -1,29 +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?
-
-/** If you have lines that are just instructions or notes for humans and you don’t want the computer to execute them, you can turn them into comments.
-
-In JavaScript, there are two ways to write comments:
-
-1. Single-line comment
-
-Use // at the start of a line.
-Everything after // is ignored by the computer.
-
-Example:
-
-// This line explains what the code does
-const num = 8;
-
-2. Multi-line comment
-
-Use \ /* ... *\ / to wrap several lines.
-
-Example:
-This section is just instructions
-The computer will ignore everything between these symbols
-
-const num = 5;
-
-*/
-
+This is just an instruction for the first activity - but it is just for human consumption
+We don't want the computer to run these 2 lines - how can we solve this problem?
diff --git a/Sprint-1/2-mandatory-errors/1.js b/Sprint-1/2-mandatory-errors/1.js
@@ -1,8 +1,4 @@
 // trying to create an age variable and then reassign the value by 1
 
-// change keyword 'const' to 'let'
-let age = 33;
+const age = 33;
 age = age + 1;
-
-console.log(age);
-
diff --git a/Sprint-1/2-mandatory-errors/2.js b/Sprint-1/2-mandatory-errors/2.js
@@ -1,9 +1,5 @@
 // Currently trying to print the string "I was born in Bolton" but it isn't working...
 // what's the error ?
 
-// this is a very common JavaScript error related to variable hoisting and the temporal dead zone.
-// Simply declare the variable before you use it
-
-const cityOfBirth = "Bolton";
 console.log(`I was born in ${cityOfBirth}`);
-
+const cityOfBirth = "Bolton";
diff --git a/Sprint-1/2-mandatory-errors/3.js b/Sprint-1/2-mandatory-errors/3.js
@@ -1,34 +1,9 @@
-// const cardNumber = 4533787178994213;
-// const last4Digits = cardNumber.slice(-4);
+const cardNumber = 4533787178994213;
+const last4Digits = cardNumber.slice(-4);
 
 // The last4Digits variable should store the last 4 digits of cardNumber
 // However, the code isn't working
 // Before running the code, make and explain a prediction about why the code won't work
 // Then run the code and see what error it gives.
 // Consider: Why does it give this error? Is this what I predicted? If not, what's different?
 // Then try updating the expression last4Digits is assigned to, in order to get the correct value
-
-/** 
- *Prediction: Why won’t this code work?
-const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.slice(-4);
-
-
-The issue is that .slice() is a string method, but cardNumber here is a number — not a string.
-So when the code runs, JavaScript will say something like:
-
-TypeError: cardNumber.slice is not a function
-
-That’s because .slice() only works on strings or arrays — and numbers don’t have that method.
-
-Fixing the problem
-
-To use .slice(), we need to convert the number into a string first:
-
-Now it works!
-*/
-
-const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.toString().slice(-4);
-console.log(last4Digits); // "4213"
-
diff --git a/Sprint-1/2-mandatory-errors/4.js b/Sprint-1/2-mandatory-errors/4.js
@@ -1,18 +1,2 @@
-// const 12HourClockTime = "20:53";
-// const 24hourClockTime = "08:53";
-
-/**
- * In javascript variable can't start with a number
- * Can contain letters, digits (but not at the start), underscore _, and dollar signs $
- *
- * const 12HourClockTime = "20:53"; will cause a SyntaxError because variable names can't begin with a number. 
- *
- * To fix it by changing the name to start with a letter.
- */
-
-const twelveHourClockTime = "08:53";
-const twentyFourClockTime = "20:53";
-
-console.log(twelveHourClockTime);
-console.log(twentyFourClockTime);
-
+const 12HourClockTime = "20:53";
+const 24hourClockTime = "08:53";
diff --git 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;
@@ -13,40 +13,10 @@ console.log(`The percentage change is ${percentageChange}`);
 
 // a) How many function calls are there in this file? Write down all the lines where a function call is made
 
-// Function calls and their line numbers
-// line 3 - carPrice.replaceAll(",", "") - Callls replaceAll() on the string to remove commas
-// line 3 - Number(...) - Converts the resulting string to a number
-// line 4 - priceAfterOneYear.replaceAll("," "") - Syntax error here - Intendend to replaceAll() but missing a comma between arguments
-// line 8 - console.log(...) - Prints to console 
-// // Total intended function calls: 5
-
 // 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?
 
-// priceAfterOneYear = Number(priceAfterOneYear.replaceAll("," ""));
-// Error: SyntaxError: missiong ) after argument list
-// Reason:
-// There's a missing comma between the arguments of replaceAll.
-// The correct syntax should be:
-// priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
-
 // c) Identify all the lines that are variable reassignment statements
 
-// These are the lines where variables that were already declared are assigned a new value:
-// carPrice = Number(carPrice.replaceAll(",", "");
-// priceAfterOneYear = Number(priceAfterOneYear.replaceAll(",", ""));
-// Reassignments: Lines 3 and 4
-
 // d) Identify all the lines that are variable declarations
 
-// These are the lines where variables are first introduced:
-// let carPrice = "10,000";
-// let priceAfterOneYear = "8,543";
-// const priceDifference = carPrice - priceAfterOneYear;
-// const percentageChange = (priceDifference / carPrice) * 100;
-
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
-
-// carPrice.replaceAll(",", "") - removes all commas from the string "10,000", then it becomes "10000"
-// Number("10000") - Converts the string "10000" into a numeric value 10000.
-// Purpose: To convert a formatted currency string (with commas) into a number that can be used for mathematical calculations.
-
diff --git a/Sprint-1/3-mandatory-interpret/2-time-format.js b/Sprint-1/3-mandatory-interpret/2-time-format.js
@@ -12,79 +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?
-// Each const introduces a new variable.
-// 
-// movieLength
-// remainingSeconds
-// totalMinutes
-// remainingMinutes
-// totalHours
-// result
-// Total variable declarations: 6
 
 // b) How many function calls are there?
 
-// The only function call is:
-
-// Total function calls: 1
-// 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 MDN documentation on the remainder (%) operator
-// The remainder operator returns the remainder left over when one operand is divided by a second operand.
-// So:
-// movieLength % 60
-// means “the remainder when movieLength is divided by 60.”
-// Interpretation:
-// It gives you the remaining seconds that don’t make up a full minute.
-// For example, if the movie length were 125 seconds:
-// 125 % 60 = 5, so there are 5 seconds left over after 2 full minutes.
-// Purpose: Extract the leftover seconds after converting total seconds into minutes.
-
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
 
-// const totalMinutes = (movieLength - remainingSeconds) / 60;
-// This line:
-// Subtracts the leftover seconds (that couldn’t form a full minute).
-
-// Divides the remaining seconds by 60.
-// Meaning:
-// Converts the total movie length into minutes, ignoring any incomplete minute.
-// So it gives the total number of full minutes in the movie.
-
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
 
-// const result = `${totalHours}:${remainingMinutes}:${remainingSeconds}`;
-
-// This combines hours, minutes, and seconds into a single string formatted like H:M:S.
-// Example output: "2:26:24"
-// Meaning: It represents the formatted time duration of the movie.
-// Better variable names:
-// formattedDuration
-// timeString
-// movieTime
-// durationInHMS
-
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
-
-// It will work correctly for most positive integers, since it’s just converting seconds into hours, minutes, and seconds using division and remainders.
-// However, there are some edge cases:
-// If movieLength = 0:
-// Output: 0:0:0 ✅ Works fine.
-// If movieLength < 60 (less than a minute):
-// Works fine (e.g., 45 → 0:0:45).
-// If movieLength is not an integer (e.g., 87.5):
-// Still works, but decimals might appear in remainingSeconds.
-// If movieLength is negative:
-// The logic breaks — you’d get negative time components ❌.
-// Formatting issue:
-
-// The output isn’t padded.
-// Example: 2 hours, 5 minutes, 9 seconds → "2:5:9" instead of "02:05:09".
-// (Can fix that with .padStart(2, '0') on each component.)
-
-// Summary:
-// It works for positive whole numbers, but for negative or non-integer inputs, or if you need formatted time, adjustments are needed.
-
diff --git a/Sprint-1/3-mandatory-interpret/3-to-pounds.js b/Sprint-1/3-mandatory-interpret/3-to-pounds.js
diff --git a/Sprint-1/4-stretch-explore/chrome.md b/Sprint-1/4-stretch-explore/chrome.md
diff --git a/Sprint-1/4-stretch-explore/objects.md b/Sprint-1/4-stretch-explore/objects.md
