wk 1 feedback considered and changed accordingly

week-1/exercises/paths.js

@@ -17,6 +17,8 @@ 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
 
-let dirPath=filePath.slice(0,-8);
+let dirPath = filePath.slice(0, lastSlashIndex);
 console.log(dirPath);
-console.log(base);
+let extPath = base.includes(".") ? base.slice(base.lastIndexOf(".") + 1) : "";
+console.log(extPath);
+

week-1/exercises/random.js

@@ -3,9 +3,9 @@ const maximum = 100;
 
 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 several times to build an idea of what the program is doing - math,random gives a value between 0 and 1, however 0 and 1 are not included. max - min +1 is 100 so a random number multiplied by 100 is anywhere between 0 and 100 but 0 and 100 not included. then add +1 and then 100 is included. math. floor rounds the number. so this function is giving us a random number between 0 and 100
+// math.random gives a value between 0 (inclusive) and 1 (exclusive).
+// max - min + 1 is 100, so a random number multiplied by 100 is between 0 (inclusive) and 100 (exclusive).
+// Adding +1 shifts the range to be between 1 and 101 (exclusive).
+// Math.floor rounds the number, so this function gives us a random whole number between 1 and 100 (inclusive).
 
-console.log(num);
+console.log(num);

week-1/interpret/percentage-change.js

@@ -11,10 +11,13 @@ 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 - line 4,5,8,10
+// a) How many function calls are there in this file? 
+//Write down all the lines where a function call is made - line 4,5,8,10
 
 // b) Identify all the lines that are variable reassignment statements - line 4,5, 
 
-// c) Identify all the lines that are variable declarations - line 1,2
+// c) Identify all the lines that are variable declarations - line 1,2, 7, 8
 
-// d) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression? - it is replacing all commas, so commas are being deleted
+// d) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - 
+//what is the purpose of this expression? - it is replacing all commas, so commas are being deleted
+//the number() chnages string to a number 

week-1/interpret/time-format.js

@@ -15,7 +15,7 @@ console.log(result);
 
 // a) How many variable declarations are there in this program? - just 7
 
-// b) How many function calls are there? - 2 
+// b) How many function calls are there? - there's only 1 which is console.log
 
 // c) Using documentation on MDN, explain what the expression movieLength % 60 represents - The remainder (%) operator returns the remainder left over when one operand is divided by a second operand. It always takes the sign of the dividend.
 

week-1/interpret/to-pounds.js

@@ -1,12 +1,12 @@
-const penceString = "399p"; //this defines the value of the pence in a string 
+const penceString = "399p"; //this defines the value of the pence in a string which is 399p
 
 const penceStringWithoutTrailingP = penceString.substring(
   0,
   penceString.length - 1
 ); // substring means it extracts a character, it is usually written like this substring(indexStart) or substring(indexStart,indexEnd)
 // in this example it is substring (0, penceString.lenght -1) which means 0 is the first character which is 3 in this example and -1 means the last character is being cut off so it will be 399
 
-const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0"); // this means it will add a character or value to the string until it reaches the length required
+const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0"); // this means it will add a character or value to the string until it reaches the length required which gives a value of 399 as it already is 3 lenghts long
 const pounds = paddedPenceNumberString.substring(
   0,
   paddedPenceNumberString.length - 2
@@ -15,9 +15,9 @@ const pounds = paddedPenceNumberString.substring(
 const pence = paddedPenceNumberString
   .substring(paddedPenceNumberString.length - 2)
   .padEnd(2, "0"); // substring in this example means it will cut off the first 2 characters fromt he start so it will be 3
-  // padend means it will add the specified character starting from the end until it reaches the desired number
+  // padend means it will add the specified character starting from the end until it reaches the desired number which gives a value of 99 
 
-console.log(`£${pounds}.${pence}`); // this will log the string value of pound and pence 
+console.log(`£${pounds}.${pence}`); // this will log the string value of pound and pence which is £.99
 
 // This program takes a string representing a price in pence
 // The program then builds up a string representing the price in pounds