Whilst we can't say for sure without the XML that's being parsed, the usual reason for ‘getting blanks’ from childNodes[0]
(firstChild
) is that there is a whitespace Text node between the parent's start-tag and the node you are looking for:
<data>
<![CDATA[ foo ]]>
</data>
On an XML parser that retains CDATA sections, that'll give the data
element three children: a Text node containing a newline and some spaces; the CDATASection node; and another Text node with a newline.
So you could take childNodes[1]
, but it's a bit fragile... in particular it would break for an XML parser that turns CDATA sections into text, where you'd get a single Text child containing foo
and all the whitespace. Probably better to take the textContent
of the <data>
element (except of course with fallback to innerText
for IE).
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