Q
What is the data type of an array in JavaScript?

Answer & Solution

Answer: Option B
Solution:
Arrays are objects in JavaScript.
Related Questions on Average

Which method can be used to convert a string to a number in JavaScript?

A). parseInt()

B). toString()

C). toNumber()

D). parseStr()

What will typeof [1, 2, 3] return?

A). array

B). object

C). number

D). list

How do you declare a variable with an undefined value?

A). let x;

B). let x = '';

C). let x = 0;

D). let x = null;

What is the output of typeof null?

A). null

B). undefined

C). object

D). number

What is the result of typeof Symbol('id')?

A). symbol

B). object

C). string

D). undefined

Which of the following is not a primitive data type in JavaScript?

A). String

B). Number

C). Object

D). Boolean

Which of the following is a falsy value in JavaScript?

A). 0

B).

C). null

D). All of the above

What is the output of '5' + 3?

A). 8

B). 53

C). 8

D). Error

What will typeof NaN return?

A). number

B). NaN

C). undefined

D). object

What is the output of typeof function() {}?

A). function

B). object

C). undefined

D). number