Enable change to error identified, and correct the right expression.

Author: tasleemadedokun

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

@@ -1,9 +1,18 @@
 const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.slice(-4);
+const last4Digits = cardNumber.toString().slice(-4);
+
+
+console.log(last4Digits); // "4213"
 
 // 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 don't think it will work, because card number is a number,
+and .slice() is a string method and we must convert the number to string method to work*/
+
+//TypeError: cardNumber.slice is not a function. this was after running node.