Fix extracting last 4 digits from card number

Author: abmhts

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

@@ -1,9 +1,15 @@
 const cardNumber = 4533787178994213;
 const last4Digits = cardNumber.slice(-4);
 
+const cardNumber = "4533787178994213";
+const last4Digits = cardNumber.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
+    slice() not work with number
 // Then run the code and see what error it gives.
+    cardNumber.slice is not a function
 // 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