Answer & Solution
Answer: Option A
Solution:
When the - operator is used, JavaScript tries to convert the string to a number, so '5' - 2 evaluates to 3.
Q
What is the result of '5' - 2?
Related Questions on Average
Which operator is used to assign a value to a variable in JavaScript?
A). =
B). ==
C). ===
D). =>
What is the output of 10 > 5 && 5 < 2?
A). 1
B). 0
C). 1
D). 0
What does the typeof operator return for an array?
A). object
B). array
C). list
D). collection
What is the value of the expression null == undefined?
A). 1
B). 0
C). null
D). undefined
Which of the following is a logical operator in JavaScript?
A). &&
B). ||
C). !
D). All of the above
Which operator checks if two values are not equal and also checks for type?
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
What is the result of true + false?
A). 0
B). 1
C). truefalse
D). NaN
What is the result of the expression 5 + '5'?
A). 10
B). 55
C). 55
D). NaN
What does the + operator do when used with two numbers?
A). Concatenates them as strings
B). Adds them
C). Multiplies them
D). Subtracts them