var

let

static

public

//This is a comment

<!--This is a comment-->

/* This is a comment */

Both A and C

<!--This is a comment-->

//This is a comment

'This is a comment

#This is a comment

Boolean

String

Number

Function

keyword

function

Declaration Statement

Data type

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.

document. write()

console.log()

window. alert()

innerHTML

5

10

55

error

var

let

const

none of the above

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

variable carName;

var carName;

vari carName;

dim carName;

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

jscript.write("Sky is blue")

document.write("Sky is blue")

print("Sky is blue")

jscript.print("Sky is blue")

Volatile variable

Mutable variable

Immutable variable

Dynamic variable

Long

Text

Integer

Number

Display()

Prompt()

Alert()

Confirm()

Null type

Undefined type

Number type

All of the mentioned

Division by zero

Missing of semicolons

Syntax error

Both A and B

5myvalue

myvalue5

Myvalue

None of These

parseInt ()

Number()

parseFloat()

valueOf()

integers

double precision floating point

double

floating point