updated the code to use type conversion

Author: alexandru-pocovnicu

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

@@ -1,6 +1,7 @@
-const cardNumber = "4533787178994213";
-const last4Digits = cardNumber.slice(-4);
+const cardNumber = 4533787178994213;
+const last4Digits = String(cardNumber).slice(-4);
 
+console.log(last4Digits);
 
 
 //it won't work because slice() works on strings and arrays not on numbers