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	<title>JacksonDunstan.com &#187; nan</title>
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	<description>Mastering AS3</description>
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		<title>Definitive isNaN()</title>
		<link>http://jacksondunstan.com/articles/983</link>
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		<pubDate>Mon, 20 Dec 2010 10:00:04 +0000</pubDate>
		<dc:creator>jackson</dc:creator>
				<category><![CDATA[AS2]]></category>
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		<category><![CDATA[JavaScript]]></category>
		<category><![CDATA[isNaN]]></category>
		<category><![CDATA[nan]]></category>
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		<description><![CDATA[I wrote an article in November 2009 titled Faster isNaN() and a followup to it titled Even Faster isNaN() and continue to get comments on both, so today I&#8217;m doing a followup to bring together both articles and the many comments on them into one definitive article. (UPDATE: added Windows performance results) In the first [...]]]></description>
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		<title>Even Faster isNaN()</title>
		<link>http://jacksondunstan.com/articles/815</link>
		<comments>http://jacksondunstan.com/articles/815#comments</comments>
		<pubDate>Mon, 13 Sep 2010 09:00:22 +0000</pubDate>
		<dc:creator>jackson</dc:creator>
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		<category><![CDATA[isNaN]]></category>
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		<description><![CDATA[I wrote an article last November showing how to make your isNaN() calls 12x faster. Today, thanks to a tip from the comments on that article, I&#8217;ll show you how to make your isNaN() calls even even faster! (UPDATE: see the definitive article on isNaN for much more!) The comment I&#8217;m referring to goes one [...]]]></description>
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		<title>Faster isNaN()</title>
		<link>http://jacksondunstan.com/articles/450</link>
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		<pubDate>Wed, 11 Nov 2009 09:00:16 +0000</pubDate>
		<dc:creator>jackson</dc:creator>
				<category><![CDATA[AS2]]></category>
		<category><![CDATA[AS3]]></category>
		<category><![CDATA[JavaScript]]></category>
		<category><![CDATA[nan]]></category>
		<category><![CDATA[performance]]></category>

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		<description><![CDATA[You cannot directly check if a value is NaN by comparing with it. AS3, AS2, and JavaScript therefore provide a useful isNaN() function to do this very check. However, it is very slow. Today I&#8217;ll show you a workaround that results in a faster isNaN(): (UPDATE: see the definitive article on isNaN for much more!) [...]]]></description>
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