Q
Which of the following is a falsy value in JavaScript?

Answer & Solution

Answer: Option D
Solution:
In JavaScript, 0, '', null, undefined, NaN, and false are falsy values.
Related Questions on Average

What is the result of typeof undefined?

A). undefined

B). null

C). object

D). number

Which function can convert a number to a string in JavaScript?

A). toString()

B). parseInt()

C). String()

D). Number()

What is the output of '5' - 3?

A). 2

B). 2

C). 53

D). Error

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

A). array

B). object

C). number

D). list

What will typeof NaN return?

A). number

B). NaN

C). undefined

D). object

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

A). parseInt()

B). toString()

C). toNumber()

D). parseStr()

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

A). function

B). object

C). undefined

D). number

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

A). symbol

B). object

C). string

D). undefined

What is the output of typeof null?

A). null

B). undefined

C). object

D). number

What is the output of '5' + 3?

A). 8

B). 53

C). 8

D). Error