Fixed getLastDigit function

Updated the getLastDigit function to accept a parameter and removed unused variable.

Author: khaliun-dev

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

@@ -1,24 +1,38 @@
 // Predict and explain first...
 
-// Predict the output of the following code:
-// =============> Write your prediction here
+// Predict the output of the following code
+// =============> Write your prediction here: i think, the console.log will only show '3' because the paramater hasn't been specified in the function. 
 
-const num = 103;
+//const num = 103;
 
-function getLastDigit() {
+//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)}`);
+
+// Now run the code and compare the output to your prediction
+// =============> write the output here: I've run the code and got '3' in each console.log line. 
+
+// Explain why the output is the way it is
+// =============> write your explanation here: It's because there is no parameter in the function to differentiate viarable 103 from 42, 105, 806.
+ 
+
+// 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)}`);
 
-// Now run the code and compare the output to your prediction
-// =============> write the output here
-// Explain why the output is the way it is
-// =============> write your explanation here
-// Finally, correct the code to fix the problem
-// =============> write your new code here
+
+// it works now, but since cosnt num = 103 is unused, i have removed it. 
 
 // This program should tell the user the last digit of each number.
 // Explain why getLastDigit is not working properly - correct the problem