Assume selectId has 5 values option items, considering the following JavaScript

Question

Assume selectId has 5 values option items, considering the following JavaScript code snippet: var oSelect = document.getElementById('selectId'); oSelect.options[2] = null;
A) The second line removes the third element in the list.
B) The second line clears out the text for the third element in the list.
C) The second line results in an error.
D) Depending on the browser, the second line can do any of a, b, or c above.

The easiest way to add a large number of elements, attributes, and other nodes is to use which method or property?
A) The innerHTML property
B) The various methods of the DOM
C) Both a and b
D) None of the above

Explanation / Answer

For the first one, the answer is B. setting the value to null does NOT remove the element from the list nor does it result in an error. For the second one, the answer is B. Using DOM is the best way to add many elements quickly and easily

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