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 21:07:50 +0200
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Joao Rodrigues wrote:

> On 11/06/2015 10:28, Christoph M. Becker wrote:
>
> Brendan Eich *created* JavaScript in May, 1995 while working at
> Netscape, and he has been an active TC39 member in Ecma since 1996. As
> such, he is the very authority here. Besides, it is a *fact*, not an
> evidence, that Brendan Eich *recognized* publicly the typeof_null_bug [1].
> 
> [1] <http://wiki.ecmascript.org/doku.php?id=discussion:typeof>

Brendan Eich wrote:

| We have reason to believe typeof null === “object” is a bug that
| could bite real content, from our spidering of the web.

So yes, he admits that typeof null === "object" is a bug.  However, a
few lines above it is written:

| From bug fixes where the typeof fixing started, more about the typeof
| null === “null” fix:

Ah, obviously his comment refers to that.  Interestingly, the term "bug
fixes" is linked to "Bug fixes to ECMA-262".  ECMA-262 is a
specification, not an implementation, so obviously, Brendan Eich
admitted a *specification* bug.

Contrary to that, Dr. Rauschmeyer claims that typeof null === "object"
would have been an *implementation* bug in the first version of JavaScript.

-- 
Christoph M. Becker

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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