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Re: JavaScript Regex

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In comp.lang.javascript message <Xns9FE0691ABB4B5eejj99@194.109.133.133>
, Fri, 20 Jan 2012 09:19:57, Evertjan. <exjxw.hannivoort@interxnl.net>
posted:
>Dr J R Stockton wrote on 19 jan 2012 in comp.lang.javascript:

>> Set t = "NaN", and one can see that "NaN" is wrong; it should be spelt
>> "Nan", because ECMAscript NaN is undoubtedly a Number but not a number.
>
>A fixed point Number?

That had no especial reference to GW's number-strings.  Variables of
type Number are invariably [supposed to be] IEEE 754 double-precision
binary floating-point format internally, as [the representations that I
have seen of] their internal formats are all in terms of sign, exponent,
and mantissa.

Although   typeof NaN    is "number", ECMA is clear that the type is
really 'Number' - but the value of NaN does not lie in the inclusive
range from -Infinity to +Infinity.

-- 
 (c) John Stockton, nr London, UK. ?@merlyn.demon.co.uk  Turnpike 6.05  WinXP.
 Web  <http://www.merlyn.demon.co.uk/> - FAQ-type topics, acronyms, and links.
 Command-prompt MiniTrue is useful for viewing/searching/altering files. Free,
 DOS/Win/UNIX now 2.0.6; see <URL:http://www.merlyn.demon.co.uk/pc-links.htm>.

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JavaScript Regex Gene Wirchenko <genew@ocis.net> - 2012-01-11 20:51 -0800
  Re: JavaScript Regex Ross McKay <au.org.zeta.at.rosko@invalid.invalid> - 2012-01-12 17:07 +1100
    Re: JavaScript Regex Gene Wirchenko <genew@ocis.net> - 2012-01-12 12:13 -0800
      Re: JavaScript Regex "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-01-12 20:48 +0000
        Re: JavaScript Regex Dr J R Stockton <reply1202@merlyn.demon.co.uk> - 2012-01-14 20:41 +0000
          Re: JavaScript Regex "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-01-15 20:08 +0000
            Re: JavaScript Regex Dr J R Stockton <reply1203@merlyn.demon.co.uk> - 2012-01-16 21:55 +0000
  Re: JavaScript Regex Denis McMahon <denismfmcmahon@gmail.com> - 2012-01-12 15:05 +0000
    Re: JavaScript Regex Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2012-01-12 16:42 +0100
      Re: JavaScript Regex "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-01-12 16:09 +0000
    Re: JavaScript Regex "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-01-12 15:56 +0000
      Re: JavaScript Regex Dr J R Stockton <reply1202@merlyn.demon.co.uk> - 2012-01-14 20:44 +0000
      Re: JavaScript Regex Dr J R Stockton <reply1203@merlyn.demon.co.uk> - 2012-01-19 19:59 +0000
        Re: JavaScript Regex "Evertjan." <exjxw.hannivoort@interxnl.net> - 2012-01-20 09:19 +0000
          Re: JavaScript Regex Dr J R Stockton <reply1203@merlyn.demon.co.uk> - 2012-01-21 20:27 +0000
  Re: JavaScript Regex Dr J R Stockton <reply1202@merlyn.demon.co.uk> - 2012-01-14 21:23 +0000
    Re: JavaScript Regex Gene Wirchenko <genew@ocis.net> - 2012-01-15 21:10 -0800
      Re: JavaScript Regex Dr J R Stockton <reply1203@merlyn.demon.co.uk> - 2012-01-17 20:01 +0000
        Re: JavaScript Regex Scott Sauyet <scott.sauyet@gmail.com> - 2012-01-18 05:42 -0800
          Re: JavaScript Regex Dr J R Stockton <reply1203@merlyn.demon.co.uk> - 2012-01-19 20:11 +0000

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