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set:leading()

files/en-us/web/xml/exslt/reference/set/leading/index.md

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set:leading() returns the nodes in one node-set that come before the first node in the other node-set.

Syntax

js-nolint
set:leading(nodeSet1, nodeSet2)

Parameters

  • nodeSet1
    • : The node set to find nodes in that precede the first node in the second node set.
  • nodeSet2
    • : The node set to compare against.

Return value

A node-set containing the nodes from nodeSet1 whose values precede the first node in nodeSet2.

[!NOTE] If the first node in nodeSet2 isn't contained in nodeSet1, an empty set is returned. If nodeSet2 is empty, then the result is nodeSet1.

Specifications

EXSLT - SET:LEADING