OK, found my old work on IE & XML for your continued reference.
http://jsfiddle.broadleafsystems.com/FrTQc/21/
Uses getElementById when available, falls back to selectSingleNode
otherwise. Then also runs w/Slick if possible.
I also do a getElementById on similarly structured HTML markup (not
the XML response) for a performance reference.
On my machine:
· selectSingleNode-against-XML is 2x slower than
getElementById-against-HTML within IE 8
· getElementById-against-XML is only slightly slower than
getElementById-against-HTML in Firefox 15, and they're both
rocket-fast compared to IE
· even so, selectSingleNode/IE is still 25% faster than Slick/Firefox
15; Slick is still the slowest dog in the bunch
That last tidbit is a bit apples-and-oranges, but regardless I would
not use Slick against XML if you don't have to (i.e. if you can craft
your XML to fit the task and you don't need Slick's fancy selectors).
-- S.
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