Q
What will be the output of 'apple' + null in JavaScript?

Answer & Solution

Answer: Option A
Solution:
JavaScript converts null to the string 'null' and concatenates it with 'apple', resulting in 'applenull'.
Related Questions on Average

What does '5' + '3' evaluate to in JavaScript?

A). '53'

B). 8

C). 53

D). '8'

What is the output of 5 + NaN in JavaScript?

A). NaN

B). 5

C). '5NaN'

D). 0

What is the result of '5' + true in JavaScript?

A). '5true'

B). '6'

C). 6

D). 'true5'

How do you add a number and a string in JavaScript to get a numeric result?

A). parseInt(string, 10) + number

B). Number(string) + number

C). string + number

D). number + string

What will be the output of 5 + 3 + ' apples' in JavaScript?

A). '8 apples'

B). 8 apples

C). '5 + 3 apples'

D). '53 apples'

How do you convert a string to a number in JavaScript before adding it to another number?

A). Number(string)

B). parseInt(string, 10)

C). string.toNumber()

D). string.convertToNumber()

What is the result of 5 + 3 in JavaScript?

A). 8

B). 53

C). '8'

D). 15

How do you convert a string to a number in JavaScript using the + operator?

A).

B).

C). *string

D). /string

How does JavaScript handle the expression 5 + undefined?

A). Converts undefined to NaN and returns NaN

B). Converts 5 to a string and concatenates

C). Throws an error

D). Converts 5 to undefined and returns undefined

What is the result of '5' + '3' + 2 in JavaScript?

A). '532'

B). '8'

C). '5'

D). '53'