fix getLastDigit to return last digit of any input number

Author: sayeedhussain01

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

@@ -2,6 +2,7 @@
 
 // Predict the output of the following code:
 // =============> Write your prediction here
+//  I predicted that  it will show undefined or fixed number like 3
 
 const num = 103;
 
@@ -15,10 +16,24 @@ 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
+// num has fix number which is 3 and i return this fix number
 // =============> write your explanation here
+// user want last digit whatever number they put but i set up a fix number which will return that one that's why now i removed fixed number and wrote a parameter in function
+// which will contain user number whatever number they put and get the last digit.
 // 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