21.
Which of the following is one of the fundamental features of JavaScript?

22.
Which of the following functions are synchronous?

23.
Why shouldn’t JavaScript functions not be too long?

24.
The object that looks to the thread that creates it is

25.
Which of the following is a global object for a new worker?

26.
Which will be invoked to create a new worker?

27.
What will happen if you specify an absolute URL in the Worker constructor?

28.
How can you send data using a Worker object?

29.
Which property is used to manage multiple event handlers?

30.
Which is the function that allows a worker to terminate itself?

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