The phrase .contain.any takes a range, at least one element of which is expected to appear in the range on the left hand side.
[2, 3, 4].should.contain.any([4, 5]); [2, 3, 4].should.not.contain.any([5, 6]);
See Implementation
The phrase .contain.any takes a range, at least one element of which is expected to appear in the range on the left hand side.