exercise 4 complete

Author: kohanman

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

@@ -1,9 +1,21 @@
-const minimum = 1;
+// A program to generate a random number between 1 and 100
 const maximum = 100;
 
-const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
+const num = Math.floor(Math.random() * (maximum)) + 1;
 
 // 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
+
+console.log(num);
+
+//Math.random generates a decimal number between 0 and 1
+//multiplying (maximum - minimum + 1) this part generates a number between 0 and 100 that can still have decimal places.
+/// but since minimum in this example is 1 it can be simplified from (maximum -1 +1) ==>(maximum)
+//Math.floor rounds down to the nearest whole number 
+//+ minimum shifts the range from 0-99 to 1-100
+//so the final output is a whole number between 1 and 100, this could also be simplified to +1
+//obviously the function was more useful for different ranges when using the minimum expression
+/// without my simplification, but it is more concise for this specific example.
+