reverse function
The fn:reverse function reverses the order of the items in a sequence.
Syntax
- source-sequence
- The sequence that is to be reversed.
source-sequence is a sequence of items of any data type, or is the empty sequence.
Returned value
If source-sequence is not the empty sequence, the returned value is a sequence that contains the items in source-sequence, in reverse order.
If source-sequence is the empty sequence, the empty sequence is returned.
Example
The following function returns the
items in sequence (1,2,3,7) in reverse order:
fn:reverse((1,2,3,7))The returned value is (7,3,2,1).