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Re: null and NaN

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From "Christoph M. Becker" <cmbecker69@arcor.de>
Newsgroups comp.lang.javascript
Subject Re: null and NaN
Date Thu, 11 Jun 2015 15:28:06 +0200
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Joao Rodrigues wrote:

> Thomas Lahn wrote:
>
>> Much better.  Still _not_ an admission that it is an implementation bug 
>> caused by the original JavaScript code as Dr. Rauschmeyer and you claimed, 
>> and not a clear admission that it is a bug at all (“reason to believe”,
>> not “is”).  But at least properly quoted and cited, and substantiated.
> 
> It is still _not_ an admission that *you are wrong* and acting like a
> fool trying to deceive everyone that typeof null === 'object' is not a
> bug. Remember Brendan Eich, Douglas Crockford and others have said it is
> more than once. Now shall we believe in Thomas Lahn or Brendan Eich?

Argument from authority.

> If you had read carefully what Dr Rauschmeyer wrote [1], you'd realize
> the bug in the C++ code that he posted. Besides, there is another
> article that shows the same problem in the C++ code of Google's V8
> implementation [2].

I haven't read the second article, but Dr. Rauschmeyer claims there is a
bug without actual evidence.  The respective code could have been
written this way deliberately.  Consider that typeof null was *supposed*
to be `object` – why should have an additional check for JSVAL_NULL be
added?  A comment would have clarified the issue, but there is none, so
we only can guess.

> [1] <http://www.2ality.com/2013/10/typeof-null.html>
> [2] <http://kiro.me/blog/typeof_null.html>

-- 
Christoph M. Becker

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Thread

Re: null and NaN Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2015-06-05 00:55 -0300
  Re: null and NaN Robert Heller <heller@deepsoft.com> - 2015-06-05 06:57 -0500
    Re: null and NaN Steven D'Aprano <steve@pearwood.info> - 2015-06-07 18:47 +1000
  Re: null and NaN Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-06 08:39 +0200
    Re: null and NaN Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2015-06-06 23:15 -0300
      Re: null and NaN Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-07 09:59 +0200
        Re: null and NaN Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2015-06-07 22:30 -0300
          Re: null and NaN Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2015-06-10 20:48 +0200
            Re: null and NaN Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2015-06-11 10:01 -0300
              Re: null and NaN "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-06-11 15:28 +0200
                Re: null and NaN Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2015-06-11 11:34 -0300
                Re: null and NaN "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-06-11 21:07 +0200
                Re: null and NaN Joao Rodrigues <groups_jr-1@yahoo.com.br> - 2015-06-11 17:29 -0300
                Re: null and NaN "Christoph M. Becker" <cmbecker69@arcor.de> - 2015-06-11 23:15 +0200

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