Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!newsreader4.netcologne.de!news.netcologne.de!newsfeed.arcor.de!newsspool2.arcor-online.net!news.arcor.de.POSTED!not-for-mail
Content-Type: text/plain; charset="UTF-8"
Message-ID: <4098838.pUHI31MDFG@PointedEars.de>
From: Thomas 'PointedEars' Lahn <PointedEars@web.de>
Reply-To: Thomas 'PointedEars' Lahn <cljs@PointedEars.de>
Organization: PointedEars Software (PES)
Date: Fri, 22 Nov 2013 00:32:28 +0100
User-Agent: KNode/4.10.5
Content-Transfer-Encoding: 8Bit
X-Face: %i>XG-yXR'\"2P/C_aO%~;2o~?g0pPKmbOw^=NT`tprDEf++D.m7"}HW6.#=U:?2GGctkL,f89@H46O$ASoW&?s}.k+&.<b';Md8`dH6iqhT)6C^.Px|[=M@7=Ik[_w<%n1Up"LPQNu2m8|L!/3iby{-]A+#YE}Kl{Cw$\U!kD%K}\2jz"QQP6Uqr],./"?;=4v
Face: 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
Subject: Re: How to feature test for window.ActiveXObject?
Newsgroups: comp.lang.javascript
References: <5287c664$0$9504$9b4e6d93@newsspool1.arcor-online.net> <1581559.TFT1m0cKLP@PointedEars.de> <528a0736$0$6566$9b4e6d93@newsspool4.arcor-online.net> <106527179.0dF1VmtKRI@PointedEars.de> <528e8cc6$0$6628$9b4e6d93@newsspool2.arcor-online.net>
MIME-Version: 1.0
Lines: 46
NNTP-Posting-Date: 22 Nov 2013 00:32:31 CET
NNTP-Posting-Host: ec6962eb.newsspool2.arcor-online.net
X-Trace: DXC=1_cFZ\GWhlj^Y=RbYBPl4`A9EHlD;3Ycb4Fo<]lROoRa8kF<OcfhCOkRLRX_FVNK>nDZm8W4\YJNlYUVHKH;GI^gFiG0>ad[_6k2^[L0Y9^DFc
X-Complaints-To: usenet-abuse@arcor.de
Xref: csiph.com comp.lang.javascript:22111

Christoph Michael Becker wrote:

> Thomas 'PointedEars' Lahn wrote:
>> You could do
>> 
>>   try
>>   {
>>     ActiveXObject
>>   }
>>   catch (e)
>>   {
>>     /* no ActiveXObject */
>>   }
>> 
>> but since you have to do
>> 
>>   var o = null;
>> 
>>   try
>>   {
>>     o = new ActiveXObject("…");
>>   }
>>   catch (e)
>>   {
>>     // …
>>   }
>> 
>> anyway, the former does not make much sense.  It might even throw an
>> exception even if “ActiveXObject” is supported because the method was
>> used wrong.  It walks like a native method, but we can see in the MSDN
>> Library that it quacks rather strangely.
> 
> ACK.

On second thought, if the former approach does work in IE 10 and 11, or if 
you do know another approach that works there, please tell.  I can then test 
whether it works in previous versions also, and we may eventually not only 
have a way to work around the recent Microsoft nonsense, but also to detect 
support without the need for a call as constructor (which is also needed for 
the ES Matrix).

-- 
PointedEars

Twitter: @PointedEars2
Please do not Cc: me. / Bitte keine Kopien per E-Mail.