xdmp.position( $test as String?, $target as String?, [$collation as String?] ) as Number?
Returns an integer value representing the starting position of a string within the search string. Note, the string starting position is 1. If the first parameter is empty, the result is the empty sequence.
|$test||The string to test for existence in the second parameter.|
|$target||The string from which to test.|
|$collation||The optional name of a valid collation URI. For information on the collation URI syntax, see the Search Developer's Guide.|
xdmp.position("chin","searchintext"); => 5