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| From | Thomas 'PointedEars' Lahn <PointedEars@web.de> |
| Newsgroups | comp.lang.javascript |
| Subject | Re: Firefox Console hiding output |
| Date | Sun, 29 Jun 2014 10:59:33 +0200 |
| Organization | PointedEars Software (PES) |
| Lines | 56 |
| Message-ID | <8697251.f0ROh21TMe@PointedEars.de> (permalink) |
| References | <output-20140627183754@ram.dialup.fu-berlin.de> <amnl0bud46g3$.1dzm60n4mpegh.dlg@40tude.net> <blank-20140629024652@ram.dialup.fu-berlin.de> <obdy1n5pnubm.r26mf7c8j4of$.dlg@40tude.net> |
| Reply-To | Thomas 'PointedEars' Lahn <cljs@PointedEars.de> |
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JJ wrote:
> On 29 Jun 2014 00:47:16 GMT, Stefan Ram wrote:
>> JJ <jj4public@vfemail.net> writes:
>>> Did that happen on all web pages, including blank HTML file?
>>
>> I only ever tried it in the debugger with no web page at all:
>>
>> JSON.stringify( document )
>> "{"location":{}}"
>>
>> .
>
> There are log limits enforced.
Yes, but that is not the reason for the above result. This is:
Object.getOwnPropertyNames(document).filter(function (name) { return
Object.getOwnPropertyDescriptor(document, name).enumerable; })
| < Array [ "location" ]
And in Chromium:
JSON.stringify(document)
| TypeError: Converting circular structure to JSON
Object.getOwnPropertyNames(document).filter(function (name) { return
Object.getOwnPropertyDescriptor(document, name).enumerable; })
| Array[147]
The structure is “circular” in WebCore because at least “document.body” and
“document.body.ownerDocument” (=== document) are own, enumerable properties.
In general, it is a Bad Idea to subject host objects to JSON
stringification.
> So, only the last N number of lines are displayed.
>
> Type this in the about:config.
>
> devtools.hud.loglimit.
(easier with “loglimit”)
Thanks; the default for devtools.hud.loglimit.console is 200 which explains
the observations. Unfortunately, there appears to be no way to disable the
limit (neither negative values nor 0 work).
The least that should be done by Mozilla is to display a notice that the log
limit has been reached and that output is incomplete.
--
PointedEars
FAQ: <http://PointedEars.de/faq> | SVN: <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | ES Matrix: <http://PointedEars.de/es-matrix>
Please do not Cc: me. / Bitte keine Kopien per E-Mail.
Back to comp.lang.javascript | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Re: Firefox Console hiding output JJ <jj4public@vfemail.net> - 2014-06-29 04:37 +0700
Re: Firefox Console hiding output JJ <jj4public@vfemail.net> - 2014-06-29 15:02 +0700
Re: Firefox Console hiding output Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-06-29 10:59 +0200
Re: Firefox Console hiding output JJ <jj4public@vfemail.net> - 2014-06-29 20:48 +0700
Re: Firefox Console hiding output Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-06-29 18:07 +0200
Re: Firefox Console hiding output Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2014-06-29 10:35 +0200
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