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Question ID 14864

You are creating a web worker for an HTML5 application.
The following tasks must be performed from within the web worker:
✑ Register an event listener for the web worker
✑ Start and stop the web worker
You need to define a function that performs the required tasks.
Which line of code should you use? (To answer, drag the appropriate line or lines of code
to the correct location or locations. Each line of code may be used once, more than once,
or not at all. You may need to drag the split bar between panes or scroll to view content.)

 

Option A

* addEventListener The addEventListener() method attaches an event handler to the specified element. In context of a worker, both self and this refer to the global scope. The worker can either add an event listener for the message event, or it can define the onmessage handler to listen for any messages sent by the parent thread. * postmessage Pass a message to the worker. * close() Terminating Workers Workers are resource-intensive; they are OS-level threads. Therefore, you do no want to create a large number of worker threads, and you should terminate the web worker after it completes its work. Workers can terminate themselves, like this: self.close();

 

Correct Answer A
Explanation


Question ID 14865

You are developing an HTML5 web application and are styling text.
You need to use the text-transform CSS property.
Which value is valid for the text-transform property?

Option A

Lowercase

Option B

 Blink

Option C

Line-through

Option D

20px

Correct Answer A
Explanation Explanation: CSS Syntax text-transform: none|capitalize|uppercase|lowercase|initial|inherit; Reference: CSS text-transform Property

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