3.js task completed

Author: MattCarolus10

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

@@ -1,9 +1,9 @@
-const cardNumber = 4533787178994213;
+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
-// 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
+// The variable cardNumber is not a string and the slice() function works with strings or array
+
+// Consider: Why does it give this error? 
+// It gave that error brcause the slice() tool are not applicable to numbers.     
+// I wasn't sure what error to expect because I'm just starting to learn the slice() tool