Subject: [XPath 3.0] Why should I bother specifying the "arity" of a function that I invoke?
From: "Costello, Roger L." <costello@xxxxxxxxx>
Date: Wed, 31 Oct 2012 21:06:08 +0000
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Hi Folks,
The XPath 3.0 specification says that when a named function is invoked you
should specify the number of arguments (i.e., the arity):
NamedFunctionRef ::= EQName "#" IntegerLiteral
Here is an example:
concat#3('Section', ': ', 1)
But this works just as well:
concat('Section', ': ', 1)
So why should I bother specifying the arity? Is there a case where I *must*
specify the arity?
/Roger
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