Fixed syntax explanations and improved code comments

Author: KKtech06

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

@@ -7,5 +7,5 @@ console.log(count);
 // 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 updating the value of the count variable. 
-// The = operator is an assignment operator, which assigns the value on the right (count + 1) to the variable on the left (count).
+// Line 3 increments the value of the count variable by 1.
+// The = operator assigns the result of (count + 1) back to count.

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

@@ -22,4 +22,4 @@ const ext = filePath.slice(filePath.lastIndexOf("."))       ;
 
 console.log("dir:", dir);
 console.log("ext:", ext);
-// https://www.google.com/search?q=slice+mdn
+// https://www.google.com/search?q=slice+mdns

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

@@ -5,14 +5,14 @@ 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?  
+// In this exercise, you will need to work out what num represents?
 // num represents a random whole number between the minimum and maximum values.
 
 // 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  Generate a random decimal between 0 and 1
-//step 2 multiplys the random decimal by 100 - 1 = 99 + 1 = 100 
-//step 3 math.floor makes it a whole number between 0 and 99
-//step 4 adds 1 to make it a whole number between 1 and 100
+// Step 1: Math.random() returns a decimal in [0, 1) (includes 0, excludes 1)
+// Step 2: Multiply by 100 -> value is in [0, 100)
+// Step 3: Math.floor(...) converts it to an integer in [0, 99]
+// Step 4: Add 1 -> integer in [1, 100]

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 ? The error is that the string is not being printed to the console because there is no console.log statement to output it.
+// what's the error ? The error was cannot acess 'cityofBirth' before initialization.
+// This happpend becouse CityofBirth was declared with a const but was used before its decleration.
+
+const cityofBirth = "Bolton";
+console.log(`I was born in ${cityofBirth}`);
+
 
-console.log("I was born in Bolton");
-const cityOfBirth = "Bolton";

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

@@ -17,7 +17,7 @@ console.log(`The percentage change is ${percentageChange}`);
 // line 10 has a function call
 
 // 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?
-// I have spotted the error in line 5 becouse there was a missing comma inside the brackets.
+// I have spotted the error on line 5 there was a missing coma between the two arguments of replaceAll() specifically between "," and "".
 
 // c) Identify all the lines that are variable reassignment statements
 // Line 4 and line 5 are variable reassignment statements.
@@ -29,5 +29,5 @@ console.log(`The percentage change is ${percentageChange}`);
 // line 8
 
 // e) Describe what the expression Number(carPrice.replaceAll(",","")) is doing - what is the purpose of this expression?
-// The purpose of this expression is to remove the commas from the string value using the replaceAll().
+// replaceAll() removes commas and Number() converts the cleaned string into a number.
 

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

@@ -12,7 +12,7 @@ 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 is 6 Variable declarations 
+// There is 6 Variable declarations
 // Line 1 , Line 3 , Line 4 , Line 6 , Line 7 , Line 9
 
 // b) How many function calls are there?
@@ -26,8 +26,8 @@ console.log(result);
 // Line 4 removes the leftover seconds, then devides by 60.
 // then divides the result by 60 to calculate the total full minutes.
 
-// e) What do you think the variable result represents? Can you think of a better name for this variable?
-// Result is a formatted time string in hours minutes and seconds.
+ // e) What do you think the variable result represents? Can you think of a better name for this variable?
+// Result is a formatted time string in hours, minutes and seconds. A better name for this varible could be formattedTime.
 
 // f) Try experimenting with different values of movieLength. Will this code work for all values of movieLength? Explain your answer
 // I tested diffrent positive numbers and the code work correctly.

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

@@ -16,4 +16,4 @@ Now try invoking the function `prompt` with a string input of `"What is your nam
 
 What effect does calling the `prompt` function have? The prompt function displays a popup box asking you to enter a text and pausing the page until you click ok or cancel.
 
-What is the return value of `prompt`? Prompt returns the text entered by the user as a string if the user clicks cancel.
+What is the return value of `prompt`? Prompt returrns the text enterend by the user as a string if the user clicks OK, and returns null if the user clicks cancel.