Gets the child elements that were added to the given
parent element.
Gets the child elements that were added to the given parent element. The element array returned is in the order that the elements lie in the document, and must be contiguous.
Returns:
the child elements
Gets the child elements that were removed from the
given parent element.
Gets the child elements that were removed from the given parent element. The element array returned is sorted in the order that the elements used to lie in the document, and must be contiguous.
Returns:
the child elements