==Functions==
This paragraph lists all new functions of the [http://www.w3.org/TR/xpath-functions-30/ XQuery 3.0 Functions and Operators] draft that are already supported in BaseX.:
The following functions have been added:
* <code>fn:fold-left()</code>
* <code>fn:fold-right()</code>
* <code>fn:format-date()</code>
* <code>fn:format-dateTime()</code>
* <code>fn:format-integer()</code>
* <code>fn:format-number()</code>
* <code>fn:format-time()</code>
* <code>fn:function-arity()</code>
* <code>fn:function-name()</code>
* <code>fn:generate-id()</code>
* <code>fn:has-children()</code>
* <code>fn:head()</code>
* <code>fn:innermost()</code>
* <code>fn:map()</code>
* <code>fn:map-pairs()</code>
* <code>fn:outermost()</code>
* <code>fn:parse-xml()</code>
* <code>fn:serialize()</code>
* <code>fn:round()</code> with 2 arguments
* <code>fn:data()</code> with 0 arguments
The following functions are partially supported:
* <code>fn:format-integer()</code>
* <code>fn:format-number()</code>
* <code>fn:format-dateTime()</code>
* <code>fn:format-date()</code>
* <code>fn:format-time()</code>
[[Category:XQuery]]