Committing the actions for 2.js

Author: KayanatSuleman

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

@@ -2,23 +2,41 @@
 
 // Predict the output of the following code:
 // =============> Write your prediction here
+// I predict that the three console.log messages will always output 3.
+// This is due to the fact that the const num is defined as 103 and the program will always use that global value as the source of truth.
 
 const num = 103;
 
 function getLastDigit() {
   return num.toString().slice(-1);
 }
 
-console.log(`The last digit of 42 is ${getLastDigit(42)}`);
-console.log(`The last digit of 105 is ${getLastDigit(105)}`);
-console.log(`The last digit of 806 is ${getLastDigit(806)}`);
+//console.log(`The last digit of 42 is ${getLastDigit(42)}`);
+//console.log(`The last digit of 105 is ${getLastDigit(105)}`);
+//console.log(`The last digit of 806 is ${getLastDigit(806)}`);
 
 // Now run the code and compare the output to your prediction
 // =============> write the output here
+// The last digit of 42 is 3
+// The last digit of 105 is 3
+// The last digit of 806 is 3
+
 // Explain why the output is the way it is
 // =============> write your explanation here
+// The global value that is defined outside of the function is used as the source of truth.
+// Therefore when the program executes the line return num.toString().slice(-1); it always considers the global value.
+// The console.log ignores the values.
+
 // Finally, correct the code to fix the problem
 // =============> write your new code here
 
+function getLastDigit(num) {
+  return num.toString().slice(-1);
+}
+
+console.log(`The last digit of 42 is ${getLastDigit(42)}`);
+console.log(`The last digit of 105 is ${getLastDigit(105)}`);
+console.log(`The last digit of 806 is ${getLastDigit(806)}`);
+
 // This program should tell the user the last digit of each number.
 // Explain why getLastDigit is not working properly - correct the problem