updating var cardNumber into String so that the slice method can work

Author: AkliluMihtsun

Sprint-2/2-mandatory-errors/3.js

@@ -1,9 +1,16 @@
 const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.slice(-4);
+//const last4Digits = cardNumber.slice(-4);
+const last4Digits = cardNumber.toString().slice(-4);
+console.log(last4Digits);
 
 // The last4Digits variable should store the last 4 digits of cardNumber
 // However, the code isn't working
 // Before running the code, make and explain a prediction about why the code won't work
 // Then run the code and see what error it gives.
 // Consider: Why does it give this error? Is this what I predicted? If not, what's different?
 // Then try updating the expression last4Digits is assigned to, in order to get the correct value
+
+// I am predicting the code wont't work because the slice method does not work for numbers I guess
+// when i run the program it is giving an error saying "TypeError: cardNumber.slice is not a function"
+// It is giving this error because our var cardNumber is number and numbers don't have slice() method & it is what I predicted
+// In order our code to be able to run we need first to change the number type into String so that the slice() method can function