MarkLogic Server 11.0 Product Documentation
Element.isEqualNode

Element.isEqualNode(
   node as Node
) as Boolean

This is inherited from the XMLNode object.

Whether this node is equal to another node.

Parameters
node	The node to compare this node to.

cts.doc("example.xml").firstChild.isEqualNode(
  cts.doc("example2.xml").firstChild)

MarkLogic Server 11.0 Product DocumentationElement.isEqualNode