Answer & Solution
Answer: Option A
Solution:
The instanceof operator checks if an object is an instance of a specific object type in JavaScript.
Q
Which operator checks if an object is an instance of a specific object type in JavaScript?
Related Questions on Average
Which data type represents a block of reusable code in JavaScript?
A). String
B). Object
C). Function
D). Number
What is the data type of the value 42 in JavaScript?
A). String
B). Boolean
C). Number
D). Null
Which of the following is not a valid data type in JavaScript?
A). Array
B). Symbol
C). Map
D). Tuple
What will let x = null; console.log(typeof x); output in JavaScript?
A). Object
B). Null
C). Undefined
D). Number
What is the outcome of typeof undefined in JavaScript?
A). String
B). Undefined
C). Null
D). Number
What is the data type of the value undefined in JavaScript?
A). Number
B). Boolean
C). String
D). Undefined
What will let x = '10'; let y = x - 5; console.log(y); output in JavaScript?
A). '5'
B). 5
C). '10'
D). 10
Which of the following is a primitive data type in JavaScript?
A). Object
B). Array
C). Function
D). Boolean
Which data type represents positive infinity in JavaScript?
A). Infinity
B). Number
C). NaN
D). Null
Which of these is a complex or reference data type in JavaScript?
A). Number
B). Boolean
C). Object
D). String