Mandatory-errors part is finished.

Author: eminakturk

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

@@ -1,5 +1,6 @@
 // Currently trying to print the string "I was born in Bolton" but it isn't working...
 // what's the error ?
-
-console.log(`I was born in ${cityOfBirth}`);
 const cityOfBirth = "Bolton";
+console.log(`I was born in ${cityOfBirth}`);
+
+//Code was correct, I just shifted the const part to the top of the code block.

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

@@ -1,9 +1,21 @@
 const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.slice(-4);
+const last4Digits = cardNumber.toString().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
+
+
+// Prediction; code wont work because slice is for strings, not numbers.
+
+// after running the code, I got an error saying "cardNumber.slice is not a function".
+
+// It's what I predicted.
+
+// to fix the code I need to convert number to string first, then slice it.

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

@@ -1,2 +1,12 @@
-const 12HourClockTime = "20:53";
-const 24hourClockTime = "08:53";
+//const 12HourClockTime = "20:53";
+//const 24hourClockTime = "08:53";
+
+
+// problem is in javascript we cant start a variable name with a number.
+
+// correct way is:
+
+const.twelveHourClockTime = "20:53";
+const twentyFourHourClockTime = "08:53";
+
+console.log(`The time in 12-hour format is ${twelveHourClockTime} and in 24-hour format is ${twentyFourHourClockTime}`);