explain how it working

Author: shirinpanahian

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

@@ -2,8 +2,12 @@ const minimum = 1;
 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
+//num represents a random whole number between 1 and 100,
+//first we calculate value inside parentheses(maximum - minimum +1) = 100 -1 + 1 =100 
+// math.random return number between 0 and 1
+// math.random() * 100 give us a integer number 
+// math.floor round down the number
+// add 1 to the result  
+//for example math.floor((0.783 *100))=78 + 1 = 79