Nashorn Question

[Y Levine]

Been googling like nuts....in Nashorn, how do you do a  sanity check
upfront if array is empty?

The examples here work great
https://wiki.shibboleth.net/confluence/display/IDP30/ScriptedAttributeDefinition

Accept we have for some attributes no values for users -- so array empty
when it comes to the script calculation.
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