sprint 1 section 2 - manadatory -error's all four tasks are done

Author: Dagim-Daniel

Sprint-1/2-mandatory-errors/0.js

@@ -1,2 +1,2 @@
-This is just an instruction for the first activity - but it is just for human consumption
-We don't want the computer to run these 2 lines - how can we solve this problem?
+//This is just an instruction for the first activity - but it is just for human consumption
+//We don't want the computer to run these 2 lines - how can we solve this problem?

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

@@ -1,4 +1,5 @@
 // trying to create an age variable and then reassign the value by 1
 
-const age = 33;
+let age = 33;
 age = age + 1;
+console.log(age);

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

@@ -1,5 +1,8 @@
 // Currently trying to print the string "I was born in Bolton" but it isn't working...
 // what's the error ?
 
+        //The error was ReferenceError: cannot access `cityOfBirth` before initialization    
+        //by swapping the order of the two lines, the error will be fixed.
+        
 console.log(`I was born in ${cityOfBirth}`);
 const cityOfBirth = "Bolton";

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

@@ -1,9 +1,16 @@
-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
+    // i predict that the code doesn't work its because of two things, first i thought its case sensitive things 
+    // the second one is the type of variable, i thought the slice method is only for string type variable.
+
 // 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?
+        /*
+    I run the code and it gives me an error that says "TypeError: cardNumber.slice is not a function".
+    so i checked the type of cardNumber using typeof operator and it returns number.
+    */
 // Then try updating the expression last4Digits is assigned to, in order to get the correct value

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

@@ -1,2 +1,6 @@
 const 12HourClockTime = "8:53pm";
 const 24hourClockTime = "20:53";
+
+    // I believe this question is about what the error might be.
+    // the error is syntaxError: and its because the variable name stats wit a number which is not allowed in Javascript.
+    // removing the number or use the number next to the string/s.