Q
What is the purpose of the instanceof keyword in JavaScript?

Answer & Solution

Answer: Option B
Solution:
The instanceof keyword is used to determine if an object is an instance of a specific class.
Related Questions on Average

Which keyword is used to create a new instance of an object?

A). instance

B). create

C). new

D). object

Which keyword is used to handle exceptions in JavaScript?

A). try

B). handle

C). catch

D). exception

Which keyword is used to handle asynchronous operations in JavaScript?

A). async

B). await

C). sync

D). delay

What is the purpose of the arguments keyword in JavaScript?

A). To define function arguments

B). To pass arguments to a function

C). To access function arguments

D). To check if a variable is defined

Which keyword is used to terminate a loop iteration in JavaScript?

A). next

B). iterate

C). continue

D). terminate

What is the purpose of the typeof keyword in JavaScript?

A). To check if a variable is defined

B). To determine the data type of a variable

C). To create new variables

D). To delete variables

What is the keyword used to declare a constant variable in JavaScript?

A). const

B). let

C). var

D). constant

Which keyword is used to handle the final steps in error handling in JavaScript?

A). finally

B). end

C). last

D). complete

Which keyword is used to handle code execution after a specified time interval in JavaScript?

A). wait

B). delay

C). execute

D). setTimeout

Which keyword is used to create a label in JavaScript?

A). mark

B). label

C). name

D). identifier