refactored and fixed the error so that the cardNumber is now correctly converted into a string so that .Slice can be used and produce no errors.

Author: CatchingKiyoko

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

@@ -1,5 +1,16 @@
+// const cardNumber = 4533787178994213;
+// const last4Digits = cardNumber.slice(-4);
+// prediction: The code will not work because the `slice` method is being called on a number and has not yet been converted into a string.
+
+// this code will throw an error.
+// console.log(last4Digits);
+// The error i was given: cardNumber.slice is not a function
+// Explanation: The error occurs because cardNumber is a number, and the slice method is for a string method.
+
+// To fix this, we need to convert `cardNumber` to a string before using the `slice` method by adding .toString() to the cardNumber variable.
 const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.slice(-4);
+const last4Digits = cardNumber.toString().slice(-4);
+console.log(last4Digits); // This should now correctly log "4213"
 
 // The last4Digits variable should store the last 4 digits of cardNumber
 // However, the code isn't working