Tells the DOMWriter what types of nodes to show to the filter.
See DOMNodeFilter
for definition of the constants. The constant SHOW_ATTRIBUTE is meaningless here, attribute nodes will never be passed to a DOMWriterFilter.
"Experimental - subject to change"
- Returns:
- The constants of what types of nodes to show.
- See also:
- setWhatToShow
- Since:
- DOM Level 3