What will be the output of 'apple' + null in JavaScript?
A). 'applenull'
B). 'apple'
C). 'null'
D). 'appl'
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'
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
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 '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'
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' + 2 in JavaScript?
A). '532'
B). '8'
C). '5'
D). '53'