4-random.js

Author: enjoy15

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

@@ -1,9 +1,23 @@
 const minimum = 1;
 const maximum = 100;
 
-const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
+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
+
+// Breaking down what num represents:
+// num generates a random integer between 1 and 100 (inclusive)
+
+// Step-by-step evaluation:
+// 1. Math.random() → generates a decimal between 0 (inclusive) and 1 (exclusive)
+// 2. (maximum - minimum + 1) → calculates the range size: (100 - 1 + 1) = 100
+// 3. Math.random() * 100 → gives a decimal between 0 and 99.999...
+// 4. Math.floor(...) → rounds down to get integers from 0 to 99
+// 5. + minimum → shifts the range from 0-99 to 1-100
+
+// So num represents a random integer from 1 to 100