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   comparand1 as String?,
   comparand2 as String?,
   [collation as String]
) as Number?


Returns -1, 0, or 1, depending on whether the value of the $comparand1 is respectively less than, equal to, or greater than the value of $comparand2, according to the rules of the collation that is used.

comparand1 A string to be compared.
comparand2 A string to be compared.
collation The optional name of a valid collation URI. For information on the collation URI syntax, see the Search Developer's Guide.


fn.compare("hello", "goodbye")

=> 1

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