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READ Free Dumps For Microsoft- 70-480





Question ID 14825

You are developing a customer web form that includes the following HTML.
<input id="txtValue" type="text" />
A customer must enter a valid age in the text box prior to submitting the form.
You need to add validation to the control.
Which code segment should you use?

 

Option A

Option A

Option B

Option B

Option C

Option C

Option D

Option D

Correct Answer D
Explanation Explanation: val Return value A string containing the value of the element, or an array of strings if the element can have multiple values


Question ID 14826

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 code segment should you use? (To answer, select the appropriate option from the
drop-down list in the answer area.)

 

Option A

Explanation:

* 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

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