==
=
===
!=
<!--This is a comment-->
//This is a comment
'This is a comment
#This is a comment
variable carName;
var carName;
vari carName;
dim carName;
5myvalue
myvalue5
Myvalue
None of These
x
*
keyword
function
Declaration Statement
Data type
What is the output?
console.log("5" + 2);
7
52
Error
Undefined
Display()
Prompt()
Alert()
Confirm()
var defines a variable while let defines a constant.
There is no such major difference between them.
The value of a variable declared with var can be changed while the value of a variable declared with let cannot be changed.
var defined function scoped variable while let define block scoped variable.
Prints an exception error
Prints an overflow error
Displays “Infinity”
Prints the value as such
document. write()
console.log()
innerHTML
document.getElementById()
22
4
2
syntax error
::
?:
??
=>
What will be the output?
console.log(true + true);
0
1
There is no such major difference between them
The value of variable declared with let cannot be changed
var define function scoped variable while let define block scoped variable
Volatile variable
Mutable variable
Immutable variable
Dynamic variable
The with value let cannot of a variable declared with var can be changed while the value of a variable declared be changed
var defines a variable while let defines a constant
var declare function scoped variable while let declare block scoped variable
All of the options
2value
first-name
var
_totalAmount
console.log(2+"2"*2);
44
12
6
if(a!=null)
if (!a)
if(a!null)
if(a!==null)
window. alert()
Division by zero
Missing of semicolons
Syntax error
Both A and B
let
const
none of the above
/* This is a comment */
Both A and C
jscript.write("Sky is blue")
document.write("Sky is blue")
print("Sky is blue")
jscript.print("Sky is blue")
/
%
^
Displays a message in an alert box
Prints output to the console
Writes data to a file
Logs an error in the browser console
static
public