Answer & Solution
Answer: Option B
Solution:
In JavaScript, the + operator concatenates strings. Since one operand is a string, the number is converted to a string, resulting in '55'.
Q
What is the result of the expression 5 + '5'?
Related Questions on Average
What is the result of 5 === '5'?
A). 1
B). 0
C). 1
D). 0
Which of the following is a logical operator in JavaScript?
A). &&
B). ||
C). !
D). All of the above
Which of the following operators can be used to compare two values, including type comparison?
A). ==
B). =
C). ===
D). !==
What does the typeof operator return for an array?
A). object
B). array
C). list
D). collection
What is the result of true + false?
A). 0
B). 1
C). truefalse
D). NaN
What does typeof NaN return?
A). number
B). NaN
C). undefined
D). object
What is the value of the expression null == undefined?
A). 1
B). 0
C). null
D). undefined
What does the !! operator do to a value?
A). Negates the value
B). Converts the value to its boolean equivalent
C). Increments the value by 2
D). No effect
Which of the following is not a comparison operator?
A). ==
B). >
C). <=
D). =
Which operator would you use to determine the remainder of a division in JavaScript?
A). /
B). %
C). //
D). \