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JavaScript cts.referenceNullable

MarkLogic 9 Product Documentation
cts:reference-nullable

cts:reference-nullable(
   $reference as cts:reference
) as xs:boolean

Summary

Returns true() if the reference is nullable, false() otherwise.

Parameters
reference An index reference.

Example

cts:reference-nullable(cts:element-reference("title","nullable"))
=>
true()

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