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 does the + operator do when used with two numbers?
A). Concatenates them as strings
B). Adds them
C). Multiplies them
D). Subtracts them
Which operator is used for string concatenation in JavaScript?
A). -
B). *
C). +
D). /
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 operator is used to assign a value to a variable in JavaScript?
A). =
B). ==
C). ===
D). =>
What is the result of 10 % 3 in JavaScript?
A). 0
B). 1
C). 2
D). 3
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 a function?
A). function
B). object
C). undefined
D). method
What is the result of true + false?
A). 0
B). 1
C). truefalse
D). NaN
Which of the following is a logical operator in JavaScript?
A). &&
B). ||
C). !
D). All of the above
What is the result of '5' - 2?
A). 3
B). 3
C). 03-May
D). NaN