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

What is the result of 5 + 3 in JavaScript?

A). 8

B). 53

C). '8'

D). 15

How do you concatenate multiple strings and a number in JavaScript?

A). Using the + operator

B). Using the concat() method

C). Using the join() method

D). Using the combine() method

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

A). '8 apples'

B). 8 apples

C). '5 + 3 apples'

D). '53 apples'

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

A). 'apple5'

B). 10

C). 'apple10'

D). '5apple'

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

A). '53'

B). 8

C). 53

D). '8'

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

A). '53'

B). 8

C). 53

D). '8'

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

A). '5 apples3'

B). '8 apples'

C). '53 apples'

D). '5 apples + 3'

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()

How do you concatenate two strings in JavaScript?

A). string1.concat(string2)

B). string1 + string2

C). string1.join(string2)

D). string1.combine(string2)

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