Fix card number assignment to string for correct slicing of last 4 digits

Author: TTiamiyu

Sprint-1/2-mandatory-errors/3.js

@@ -7,3 +7,16 @@ const last4Digits = cardNumber.slice(-4);
 // 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
+
+PREDICTION:
+//the code wont work because the card number isnt in ("") and the computer wont be able to apply the .slice due to this.
+
+THE ERROR: 
+//cardNumber.slice is not a function
+
+//YES! the error is what i predicted.
+
+FIX:
+const cardnumber = "4533787178994213";
+const last4Digits = cardnumber.slice(-4);
+console.log(last4Digits);