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

Answer & Solution

Answer: Option B
Solution:
The typeof keyword is used to determine the data type of a variable or expression.
Related Questions on Average

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

A). next

B). iterate

C). continue

D). terminate

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 code execution after a specified time interval in JavaScript?

A). wait

B). delay

C). execute

D). setTimeout

What is the purpose of the yield keyword in JavaScript?

A). To pause and resume a generator function

B). To stop the execution of a function

C). To yield control to another function

D). To return a value from a function

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

What is the purpose of the super keyword in JavaScript?

A). To access parent class properties and methods

B). To create new instances of objects

C). To delete objects

D). To handle exceptions

Which keyword is used to handle asynchronous operations in JavaScript?

A). async

B). await

C). sync

D). delay

Which keyword is used to define a block of code with specific permissions in JavaScript?

A). permit

B). restrict

C). block

D). secure

Which keyword is used to handle exceptions in JavaScript?

A). try

B). handle

C). catch

D). exception

What is the purpose of the instanceof keyword in JavaScript?

A). To check if a variable is defined

B). To determine the type of an object

C). To create new instances of objects

D). To compare values