FunctX XQuery Function Library > Sequences > Checking Contents >

functx:is-value-in-sequence

Whether an atomic value appears in a sequence

Description

The functx:is-value-in-sequence function returns a boolean value indicating whether or not an atomic value is equal (based on typed values) to a value in the sequence. If $value or $seq is the empty sequence, it returns false.

Arguments and Return Type

XQuery Function Declaration

declare namespace functx = "http://www.functx.com";
declare function functx:is-value-in-sequence
  ( $value as xs:anyAtomicType? ,
    $seq as xs:anyAtomicType* )  as xs:boolean {

   $value = $seq
 } ;

Examples

functx:is-value-in-sequence(1,(1,2,3))

true

functx:is-value-in-sequence(5,(1,2,3))

false

functx:is-value-in-sequence(1.0,(1,2,3))

true

See Also

History