Refactor comments in 4-random.js for readability

Author: moses77-boop

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

@@ -3,21 +3,23 @@ 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
+
 
 //Solution
 //- "num" represents a random whole number between 1 and 100.
+
 //Break down of expression
 //-Math.random: This generates a random decimal number between 0 and 1. It can return 0, but never reaches 1. (Example: 0.876).
+
 //-(maximum - minimum + 1): 
 // This expression can be simplified as (100 - 1 + 1), which equals 100. This tells the program how many possible whole numbers there are. There are 100 possibilities.
 // The +1 is important as without it, we would only reach 99 possibilities, that is 0 - 99.
+
 //-Math.random() * (maximum - minimum + 1):
 // This function multiplies the random decimal by the range size. Since Math.random() represents numbers >=0 and <1, this expression produces value anywhere from 0 up to 100, excluding 100.
 // Example to justify expression: 0.876 * 100 = 87.6 
+
 //-Math.floor: This static method rounds down to the nearest whole number, discarding the decimal. This turns the continuous range into whole numbers, from 0 - 99.
 // That is 87.6 becomes 87.
+
 // + minimum: This shifts the whole range up by adding 1. So instead of landing on 0 - 99, we have 1 - 100.