Answer & Solution
Answer: Option A
Solution:
JavaScript automatically converts the number 5 to the string '5' and concatenates it with '3', resulting in '53'.
Q
How does JavaScript handle the expression 5 + '3'?
Related Questions on Average
What is the result of '5' + true in JavaScript?
A). '5true'
B). '6'
C). 6
D). 'true5'
What does '5' + '3' evaluate to in JavaScript?
A). '53'
B). 8
C). 53
D). '8'
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 'apple' + null in JavaScript?
A). 'applenull'
B). 'apple'
C). 'null'
D). 'appl'
What is the output of 5 + NaN in JavaScript?
A). NaN
B). 5
C). '5NaN'
D). 0
What is the result of 5 + 3 in JavaScript?
A). 8
B). 53
C). '8'
D). 15
What is the result of 5 + null in JavaScript?
A). 5
B). null
C). 0
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
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 does '5' + undefined evaluate to in JavaScript?
A). '5undefined'
B). undefined
C). 'NaN'
D). '5'