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Re: I don't get it

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From Ben Bacarisse <ben.usenet@bsb.me.uk>
Newsgroups comp.lang.javascript
Subject Re: I don't get it
Date Sat, 10 Apr 2021 15:47:17 +0100
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The Natural Philosopher <tnp@invalid.invalid> writes:

> On 09/04/2021 20:01, John G Harris wrote:
>> On Fri, 9 Apr 2021 10:03:13 +0100, The Natural Philosopher
>> <tnp@invalid.invalid> wrote:
>>
>>    <snip>
>>> After spending two days some years ago I discovered that IE and Firefox
>>> differed in their handling of comparisons of numerical and string data,
>>> and that something like
>>>
>>> if('1'== 1)
>>>
>>> was handled differently in each browser.
>>>
>>> As with all loosely typed languages, bugs in your code are trumped by
>>> bugs in the language itself.
>>
>> Was that before or after they claimed to conform to ECMA 262? If
>> after, one or both browsers had a bug, not the language. If before,
>> that's what you get with USPs.
>
> It was around 2007 give or take. IE6 and XP was current. I coded for
> firefox, it broke in IE6.
>
> I actually checked the language spec. As far as I cam remember the
> spec was explicit, that you converted to whatever the target of an
> assignement was in a mixed type operation, but in a conditional there
> was no assignment type...

So you looked in the wrong place.  I don't think that adds much useful
information.  ECMA 262, 3rd edition (2000) is very clear about the
conversions required by the == operator (section 11.9.1 and 11.9.3).
For the record, the string should be converted to a number (and the
algorithm for doing that is given in great detail too).

So it's not an issue with the specification.  Testing in IE6 running on
XP I find that the conversion is done correctly.  Did Mozilla really
have such a crude bug, and if so, did you really code for that despite
the specification being clear?

-- 
Ben.

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Thread

I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-08 03:32 -0700
  Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-08 03:37 -0700
    Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-08 04:26 -0700
      Re: I don't get it JJ <jj4public@gmail.com> - 2021-04-08 19:39 +0700
        Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-08 05:53 -0700
          Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-08 13:55 -0700
            Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-09 00:46 -0700
              Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-09 10:03 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-09 04:09 -0700
                Re: I don't get it "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-09 11:07 -0700
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-10 03:23 +0100
                Re: I don't get it "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2021-04-10 22:02 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-11 01:05 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-11 01:07 -0700
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-11 11:42 +0100
                Re: I don't get it John G Harris <niam@jghnorth.org.uk.invalid> - 2021-04-09 20:01 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-09 13:31 -0700
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-10 03:37 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-09 23:53 -0700
                Re: I don't get it John G Harris <niam@jghnorth.org.uk.invalid> - 2021-04-10 12:05 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-10 15:59 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-10 15:47 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-10 18:25 +0100
                Re: I don't get it Jon Ribbens <jon+usenet@unequivocal.eu> - 2021-04-10 17:29 +0000
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-10 19:08 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-11 11:41 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-11 14:33 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-12 02:39 -0700
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-12 11:21 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-12 10:19 -0700
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-12 21:20 +0100
                Re: I don't get it "sc...@sauyet.com" <scott@sauyet.com> - 2021-04-12 14:32 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-13 04:11 -0700
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-13 14:58 +0100
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-13 09:20 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-13 09:29 -0700
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-13 20:06 +0100
                Re: I don't get it "sc...@sauyet.com" <scott@sauyet.com> - 2021-04-13 15:09 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-14 01:15 -0700
                Re: I don't get it "sc...@sauyet.com" <scott@sauyet.com> - 2021-04-14 05:22 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-15 11:52 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-15 11:57 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-15 12:04 -0700
                Re: I don't get it Scott Sauyet <scott.sauyet@gmail.com> - 2021-04-15 19:29 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-20 14:12 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-20 14:47 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-20 23:35 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-21 01:08 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-21 01:24 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-21 01:29 -0700
                Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-13 09:32 -0700
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-13 21:59 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-14 01:32 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-14 09:08 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-14 10:06 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-14 10:59 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-14 14:05 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-14 16:32 +0100
                Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-14 23:53 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-15 13:56 +0100
                Re: I don't get it The Natural Philosopher <tnp@invalid.invalid> - 2021-04-12 11:20 +0100
        Re: I don't get it Ben Bacarisse <ben.usenet@bsb.me.uk> - 2021-04-08 15:21 +0100
          Re: I don't get it Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2021-04-09 16:50 +0200
  Re: I don't get it Man From a city with name Viljandi <he12457@hotmail.com> - 2021-04-08 10:44 -0700
  Re: I don't get it Jonas Thörnvall <jonas.thornvall@gmail.com> - 2021-04-10 00:01 -0700

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