http://blogs.msdn.com/walzenbach/archive/2008/01/18/why-do-i-need-the-parameters-and-in-javascript.aspxWhile showing the content of MicrosoftAjax.debug.js in Lutz Roeder's fantastic .NET Reflector I got asked what the parameters === and !== in JavaScript are for (and unfortunately didn't have an answer :-( ). Well, as it turns out === and !== are Comparisonde-DECommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/walzenbach/archive/2008/01/18/why-do-i-need-the-parameters-and-in-javascript.aspx#7149696Fri, 18 Jan 2008 17:56:42 GMT91d46819-8472-40ad-a661-2c78acb4018c:7149696MSDN Blog Postings » Why do I need the parameters === and !== in JavaScript?<p>PingBack from <a rel="nofollow" target="_new" href="http://msdnrss.thecoderblogs.com/2008/01/18/why-do-i-need-the-parameters-and-in-javascript/">http://msdnrss.thecoderblogs.com/2008/01/18/why-do-i-need-the-parameters-and-in-javascript/</a></p>