explained the expressions and what they do

Author: fayaz551

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

@@ -7,3 +7,12 @@ 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
+
+// breaking down the expressions:
+// num is assigned the value of Math.floor(Math.random() * (maximum - minimum + 1)) + minimum
+// Math.random() generates a random decimal number between 0 (inclusive) and 1 (exclusive)
+// (maximum - minimum + 1) calculates the range of possible values, which is 100 - 1 + 1 = 100
+// Math.random() * (maximum - minimum + 1) scales the random decimal to the range of possible values, resulting in a number between 0 and 100 (exclusive)
+// Math.floor() rounds down the scaled random number to the nearest whole number, giving us an integer between 0 and 99
+// Finally, adding minimum (which is 1) shifts the range from 0-99 to 1-100, resulting in num being a random integer between 1 and 100 (inclusive)
+console.log(num);