Reference

Returns a contiguous sub-array starting at a given position, with optional length.

Returns a new array containing all members except the first; raises an error if the array is empty.

Returns the arithmetic mean of a sequence of numeric values, or the empty sequence if the input is empty.

Returns the base URI of a node as an xs:anyURI, combining the document's URI with any xml:base attributes in scope.

Converts any XPath value — node-set, string, number, or boolean — to a boolean according to XPath 1.0 rules.

Returns the smallest integer not less than the argument — equivalent to rounding a number up toward positive infinity.

Constructs a string from a sequence of Unicode codepoint integers, enabling programmatic string assembly from character codes.

Returns a sequence of nodes from a named collection, enabling batch processing of multiple XML documents.

Compares two strings using a collation and returns -1, 0, or 1 indicating their relative order.

Concatenates two or more strings into a single string, accepting any number of arguments.