updated files as per review instructions

Author: Mugs3

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

@@ -5,4 +5,4 @@ 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
 
-//Answer: The = means assignment. The value of count is 0 but it increments by 1
+//Answer: The = means assignment. The value of count is 0 but it increments by 1

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

@@ -2,10 +2,9 @@ const firstName = "Creola";
 const middleName = "Katherine";
 const 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.
 
 const initials = firstName[0] + middleName[0] + lastName[0];
-console.log(initials)
+console.log(initials);
 
 // https://www.google.com/search?q=get+first+character+of+string+mdn

Sprint-2/1-key-exercises/3-paths.js

@@ -23,5 +23,4 @@ const ext = base.slice(base.lastIndexOf("."));
 console.log(`The dir part of ${filePath} is ${dir}`);
 console.log(`The ext part of ${base} is ${ext}`);
 
-
-// https://www.google.com/search?q=slice+mdn
+// https://www.google.com/search?q=slice+mdn

Sprint-2/1-key-exercises/4-random.js

@@ -3,7 +3,7 @@ const maximum = 100;
 
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 // (0.68 * 100 ) + 1
-console.log(num)
+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
@@ -13,8 +13,9 @@ console.log(num)
 // Answer: For calculations i utilised BODMAS formula solving numbers in brackets first, multiplication, subtraction and addition
 // I used 0.68 for math.floor(random number) + 1
 // Sum = 69
-// 1.num represents a number which is an Integer that is greater or equal to 1
+// 1.num is a random whole number from 1 to 100.
 // 2.start by (maximum-minimum +1) which the output is 100
 // 3.math.random()*100 returns random number between 0 and 100. Any random number less that 1 can be selected then multiplied by 100
 // 4.math.floor() gives out the largest integer which is less than or equal to the given number which is a decimal
-// The output is displayed in console log
+// The output is displayed in console log
+// 5. + minimum adds 1. So the range 0 to 99 becomes 1 to 100.

Sprint-2/2-mandatory-errors/0.js

@@ -1,4 +1,4 @@
 // 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 have commented out the lines. The computer removes commented lines from code compilation
+// I have commented out the lines. The computer removes commented lines from code compilation

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

@@ -5,4 +5,4 @@ const cityOfBirth = "Bolton";
 console.log(`I was born in ${cityOfBirth}`);
 
 // The error is ReferenceError: Cannot access 'cityOfBirth' before initialization
-// Answer: I switched the order by declaring the const first before calling /printing 
+// Answer: I switched the order by declaring the const first before calling /printing

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

@@ -1,5 +1,5 @@
-const cardNumber = "4533787178994213";
-const last4Digits = cardNumber.slice(-4);
+const cardNumber = 4533787178994213;
+const last4Digits = String(cardNumber).slice(-4);
 console.log(last4Digits);
 
 // The last4Digits variable should store the last 4 digits of cardNumber
@@ -12,4 +12,4 @@ console.log(last4Digits);
 //Prediction was the code would run successfully without error although with the wrong results due to absence of syntax errors in the file
 // Error returned: TypeError: cardNumber.slice is not a function
 // Lesson learnt here; slice method is only available for strings or arrays not numbers
-// So converted the cardNumber into a string first
+// I used String() on line 2 to turn the number into a string

Sprint-2/3-mandatory-interpret/1-percentage-change.js

@@ -14,8 +14,8 @@ 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
 // 5
 // * number() and .replaceAll() in line 4
-// * number() and .replaceAll()in line 4
-// console.log()
+// * number() and .replaceAll()in line 5
+// console.log() is on line 10
 // 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?
 //b) error = SyntaxError: missing ) after argument list
 // (",", ",")); - added , between quoted values

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

@@ -18,7 +18,6 @@ console.log(result);
 // 1 (console.log())
 // c) Using documentation, explain what the expression movieLength % 60 represents
 // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Arithmetic_Operators
-// It means 60 % remainder of Movie length
 // 24 seconds
 
 // d) Interpret line 4, what does the expression assigned to totalMinutes mean?
@@ -27,7 +26,7 @@ console.log(result);
 
 // e) What do you think the variable result represents? Can you think of a better name for this variable?
 // I think its the total movie length with a timer. Based on research it appears to be template literal variable as it mixes static text with dynamic data. Sorry I don't fully understand this bit yet
-// It represents the MovieDuration
+// It represents the movieDuration
 
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
 //any number greater than zero returns a valid positive hour, minute or seconds result. Changing the length to 0 returns 0:0:0. Any negative length returns negative values

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

@@ -25,10 +25,8 @@ 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): sets penceStringWithoutTRailingP = 399.0 - penceString -1 = 39
 // 2. P will be dropped
 // 3. const paddedPenceNumberString - ensures the figure is 3 characters to taking us back to 399
 // 4 const pounds - removes 2 characters from the amount = 3
-// 5. const pence - adds the amount by 2 characters taking us back to either 39 or 99
-// 5. const pence is initialised in 2 methods 1)extracts the string from index 2)adds 0 hence =  99
+// 5. substring(paddedPenceNumberString.length - 2) takes the last 2 characters of 399 which is 99. padEnd(2, "0") adds zeros for strings shorter than 2 characters. In this case, 99 is already 2 characters so nothing is added.
 // 6. console displays the figures in pounds and pence = 3.99