fn:index-where
Returns the positions in an input sequence of items that satisfy a supplied predicate.
index-where($input as item()*, $predicate as fn(item(), xs:integer) as xs:boolean?) ➔ xs:integer*
Arguments | ||||
| $input | item()* | The input sequence | |
| $predicate | fn(item(), xs:integer) as xs:boolean? | The predicate function | |
Result | xs:integer* | |||
Namespace
http://www.w3.org/2005/xpath-functions
Links to W3C specifications
XPath 4.0 Functions and Operators
Saxon availability
Available in XPath 4.0, XSLT 4.0, and XQuery 4.0. Requires Saxon-PE or Saxon-EE. Implemented since Saxon 11. Available for all platforms.
Notes on the Saxon implementation
Available since Saxon 13 in XPath 4.0. Available since Saxon 11 provided that syntax extensions are enabled.