Web Programming JavaScript Programming

Question 1

Which JavaScript method is used to add an element to the end of an array?

Accepted Answer

push()

Answer

append()

Answer

add()

Answer

insert()

Question 2

What does the === operator check in JavaScript?

Accepted Answer

Both value and type equality

Answer

Value equality only

Answer

Type equality only

Answer

Reference equality

Question 3

Which keyword is used to declare a block-scoped variable in modern JavaScript?

Accepted Answer

let

Answer

var

Answer

def

Answer

local

Question 4

What does JSON stand for?

Accepted Answer

JavaScript Object Notation

Answer

JavaScript Online Network

Answer

Java Serialized Object Notation

Answer

JavaScript Output Node

Question 5

Which JavaScript method converts a JSON string into a JavaScript object?

Accepted Answer

JSON.parse()

Answer

JSON.stringify()

Answer

JSON.convert()

Answer

JSON.decode()

Question 6

What is the output of typeof null in JavaScript?

Accepted Answer

'object'

Answer

'null'

Answer

'undefined'

Answer

'boolean'