change var type

Author: shirinpanahian

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

@@ -1,9 +1,4 @@
 const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.slice(-4);
-
-// 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
+const last4Digits = String(cardNumber).slice(-4);
+console.log(`${last4Digits}`);
+// we get error (cardNumber.slice is not a function) because slice is a String method