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

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

A). '5undefined'

B). undefined

C). 'NaN'

D). '5'

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

A). string + number.toString()

B). string + number

C). string + Number(number)

D). number + string

What is the result of 5 + 3 in JavaScript?

A). 8

B). 53

C). '8'

D). 15

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

A). 'applenull'

B). 'apple'

C). 'null'

D). 'appl'

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 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 concatenate two strings in JavaScript?

A). string1.concat(string2)

B). string1 + string2

C). string1.join(string2)

D). string1.combine(string2)

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

A).

B).

C). *string

D). /string

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

A). 'apple5'

B). 10

C). 'apple10'

D). '5apple'

How does JavaScript handle the expression 5 + '3'?

A). Converts 5 to a string and concatenates

B). Converts '3' to a number and adds

C). Throws an error

D). Converts '5' to a number and adds