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 purpose of the break keyword in JavaScript?
A). To terminate a loop
B). To skip a loop iteration
C). To handle exceptions
D). To define a new function
Which keyword is used to handle exceptions in JavaScript?
A). try
B). handle
C). catch
D). exception
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
What is the purpose of the delete keyword in JavaScript?
A). To delete all variables
B). To remove an element from an array
C). To delete properties from an object
D). To delete functions
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
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 create a label in JavaScript?
A). mark
B). label
C). name
D). identifier