second commit for sprint change

Author: gaireprakash20-ops

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

@@ -1,2 +1,3 @@
-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?
+for single line we used // and for multiple line use /*

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

@@ -2,3 +2,6 @@
 
 const age = 33;
 age = age + 1;
+
+/* In this case age is not const means variable is not reassigned so that,
+ we throws a TypeError: Assignment to constant variable.2

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

@@ -3,3 +3,6 @@
 
 console.log(`I was born in ${cityOfBirth}`);
 const cityOfBirth = "Bolton";
+
+
+/*we need to put declare variables(const cityOfBirth = "Bolton";) in first line after using expression console.log.

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

@@ -1,9 +1,12 @@
 const cardNumber = 4533787178994213;
-const last4Digits = cardNumber.slice(-4);
+const last4Digits = string(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
+//Card number is a number not a string so it will throw typeerror.
+// i did not think slice method can not run in number method so that i change it in string 

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

@@ -1,2 +1,3 @@
 const 12HourClockTime = "8:53pm";
 const 24hourClockTime = "20:53";
+/*variable is not start with number show syntaxerror.