refactor: enhance comments for clarity on random number generation logic

Author: CatchingKiyoko

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

@@ -7,3 +7,10 @@ const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 // 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
+
+// This code generates a random number between 1 and 100, inclusive.
+// The Math.random() function generates a random floating-point number between 0 (inclusive) and 1 (exclusive).
+// The expression (maximum - minimum + 1) calculates the range of numbers we want to include.
+// By multiplying Math.random() by this range, we scale the random number to fit within the desired range.
+// The Math.floor() function rounds down the result to the nearest whole number.
+// Finally, we add the minimum value to ensure the result starts from the minimum value.