In 2-mandatory-debug/1.js, updated return inline with a+b

Author: TzeMingHo

Sprint-2/2-mandatory-debug/1.js

@@ -1,13 +1,23 @@
 // Predict and explain first...
 //  =============> write your prediction here
+// It looks like the function sum return nothing because a+b is written in the next line after return statement.
+// Therefore, the output should be "The sum of 10 and 32 is undefined".
 
+/*
 function sum(a, b) {
   return;
   a + b;
 }
 
 console.log(`The sum of 10 and 32 is ${sum(10, 32)}`);
-
+*/
 // =============> write your explanation here
+// After running the code, I got "The sum of 10 and 32 is undefined".
+// The return statement ends the function execution and a+b is never evaluated.
+
 // Finally, correct the code to fix the problem
 //  =============> write your new code here
+function sum(a, b) {
+  return a + b;
+}
+console.log(`The sum of 10 and 32 is ${sum(10, 32)}`); // should return "The sum of 10 and 32 is 42"