Answer & Solution
Answer: Option A
Solution:
The instanceof operator checks if an object has a specific prototype in its prototype chain.
Q
How does the instanceof operator work in JavaScript?
Related Questions on Average
What will be the output of typeof {} in JavaScript?
A). object
B). array
C). null
D). undefined
What is the output of typeof Symbol('id') in JavaScript?
A). symbol
B). object
C). string
D). null
What will be the output of [] instanceof Array in JavaScript?
A). 1
B). 0
C). null
D). undefined
How does the typeof operator handle arrays in JavaScript?
A). array
B). object
C). undefined
D). null
How does the instanceof operator behave with primitive values in JavaScript?
A). Throws an error
B). Returns true for all primitive values
C). Returns false for all primitive values
D). Primitive values cannot be used with instanceof
What is the result of typeof undefined in JavaScript?
A). undefined
B). string
C). null
D). object
What is the output of typeof function(){} in JavaScript?
A). function
B). object
C). undefined
D). null
What does typeof true evaluate to in JavaScript?
A). boolean
B). number
C). string
D). undefined
What is the result of Boolean('false') in JavaScript?
A). 1
B). 0
C). NaN
D). null
What will be the output of typeof null in JavaScript?
A). object
B). null
C). undefined
D). string