set:intersection()
set:intersection() returns the intersection of two node-sets. In other words, it returns a node-set containing all the nodes that exits in both nodeSet1 and nodeSet2.
Syntax
set:intersection(nodeSet1, nodeSet2)
Arguments
- nodeSet1
- 
    The first node-set. 
- nodeSet2
- 
    The second node-set. 
Returns
A node-set containing the nodes that existed in both nodeSet1 and in nodeSet2.