Module "Utils/XPath"

computeXPathFromElement

• computeXPathFromElement(contextNode: Node): XPath

• Computes the XPath for a given element.

  Implementation details:

  • if the node or a parent has an id attribute, and it is the single node that has this id, then it will be used as the top node of the query.
  • if the node or a parent is a processing instruction, a comment or a DTD, it will throw a TypeError.
  • it will ignore document fragments.

  Parameters

  • contextNode: Node

    the node to compute the XPath from

  Returns XPath

  the XPath