update error message in 2-mandatory-errors 3.js

Author: leerogerfn

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

@@ -1,5 +1,5 @@
 const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.toString().slice(-4);
+const last4Digits = cardNumber.slice(-4);
 
 console.log(last4Digits);
 
@@ -12,3 +12,15 @@ console.log(last4Digits);
 
 //slice is for text or array only. Need to change card number from number to text. use toString() to convert cardNumber
 //from integer to string.
+
+//error message: TypeError: cardNumber.slice is not a function
+//    at Object.<anonymous> (/Users/rogerger1220/Documents/CYF/Module-JavaScript-Fundamentals/Sprint-2/2-mandatory-errors/3.js:2:32)
+//    at Module._compile (node:internal/modules/cjs/loader:1929:14)
+//    at Object..js (node:internal/modules/cjs/loader:2060:10)
+//    at Module.load (node:internal/modules/cjs/loader:1651:32)
+//    at Module._load (node:internal/modules/cjs/loader:1443:12)
+//    at wrapModuleLoad (node:internal/modules/cjs/loader:261:19)
+//    at Module.executeUserEntryPoint [as runMain] (node:internal/modules/run_main:154:5)
+//    at node:internal/main/run_main_module:33:47
+
+//Node.js v24.21.0