completed 4.js with comments

Author: AngelaMcLeary

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

@@ -21,4 +21,4 @@
 //*Answer
 const cardNumber = 4533787178994213;
 const last4Digits = cardNumber.toString().slice(-4);
-console.log(last4Digits);
+console.log(last4Digits);

Sprint-1/2-mandatory-errors/4.js

@@ -1,2 +1,11 @@
-const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
+//const 12HourClockTime = "20:53";
+//const 24hourClockTime = "08:53";
+
+//What's wrong with this code?
+//*Answer
+//The variable is not named in line with the Javascript naming convention. 
+// When declaring a variable it must not start with a number, space or reserved word.
+// to fix this, we can rename them correctly.
+
+const twelve_HourClockTime = "20:53";
+const twentyFour_HourClockTime = "08:53";