set:leading() returns the nodes in one node-set that come before the first node in the other node-set.
Syntax
set:leading(nodeSet1, nodeSet2)
Arguments
-
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.
Returns
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.Defined
Gecko support
Supported in Gecko 1.9 and later.