Reference

Returns the sequence of items in the current merge group inside an xsl:merge-action block.

Returns the current merge key value inside an xsl:merge-action block.

Returns true if two sequences are deeply equal: same items in the same order with equal node identity or atomic values.

Returns the value of the named environment variable as a string, or the empty sequence if unavailable.

Raises a dynamic error with an optional error code, description message, and error object.

Asserts that the sequence contains exactly one item; raises a dynamic error if the sequence has zero or more than one item.

Returns true if the node has one or more child nodes; defaults to the context node if no argument is supplied.

Returns the nodes from the input that are not ancestors of any other node in the input sequence.

Retrieves a JSON document from a URI and parses it into XDM value using the same rules as parse-json().

Converts a JSON string to its W3C standard XML representation, producing an element tree navigable with XPath.