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
How do you concatenate two strings in JavaScript?
A). string1.concat(string2)
B). string1 + string2
C). string1.join(string2)
D). string1.combine(string2)
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 is the result of '5' + '3' + 2 in JavaScript?
A). '532'
B). '8'
C). '5'
D). '53'
How do you convert a string to a number in JavaScript using the + operator?
A).
B).
C). *string
D). /string
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 output of 5 + NaN in JavaScript?
A). NaN
B). 5
C). '5NaN'
D). 0
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 is the result of 5 + null in JavaScript?
A). 5
B). null
C). 0
D). '5'