=

x

==

*

Display()

Prompt()

Alert()

Confirm()

var defines a variable while let defines a constant.

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

//This is a comment

<!--This is a comment-->

/* This is a comment */

Both A and C

22

4

2

syntax error

keyword

function

Declaration Statement

Data type

Volatile variable

Mutable variable

Immutable variable

Dynamic variable

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.

var

let

const

none of the above

=

==

===

!=

document. write()

console.log()

window. alert()

innerHTML

variable carName;

var carName;

vari carName;

dim carName;

document. write()

console.log()

innerHTML

document.getElementById()

Displays a message in an alert box

Prints output to the console

Writes data to a file

Logs an error in the browser console

5myvalue

myvalue5

Myvalue

None of These

Division by zero

Missing of semicolons

Syntax error

Both A and B

if(a!=null)

if (!a)

if(a!null)

if(a!==null)

<!--This is a comment-->

//This is a comment

'This is a comment

#This is a comment

Prints an exception error

Prints an overflow error

Displays “Infinity”

Prints the value as such

jscript.write("Sky is blue")

document.write("Sky is blue")

print("Sky is blue")

jscript.print("Sky is blue")