Fix 2-mandatory-debug/0.js: return the product instead of logging it

Author: lamlakamana-oss

Sprint-3/2-mandatory-debug/0.js

@@ -1,14 +1,23 @@
 // Predict and explain first...
 
 // =============> write your prediction here
+// I predict it will print 320 first (from the console.log inside multiply),
+// and then "The result of multiplying 10 and 32 is undefined", because
+// multiply does not return a value.
 
 function multiply(a, b) {
-  console.log(a * b);
+  return (a * b);
 }
 
 console.log(`The result of multiplying 10 and 32 is ${multiply(10, 32)}`);
 
 // =============> write your explanation here
+// multiply only logs a * b to the console. It has no return statement, so
+// multiply(10, 32) evaluates to undefined. The template string on line 12
+// puts that undefined into the sentence. The 320 appears on its own line
+// because console.log runs inside the function.
 
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+// I changed console.log(a * b) to return a * b inside multiply, so the
+// function hands the result back to the caller instead of only printing it.