Subject: Re: [xsl] variable going out of scope in a for-each loop? From: Oleg Tkachenko <olegt@xxxxxxxxxxxxx> Date: Mon, 10 Dec 2001 12:04:40 +0200 |
No, he didn't. This is a clever little bit of hackery. NaN is not equal to itself. So if the node value is a number, number(.)=number(.) is a tautology, but if the node value *isn't* a number, then NaN=NaN is false.Well, number() = number() is an analog of more readable expression string(number()) = 'NaN',
-- Oleg Tkachenko Multiconn International, Israel
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