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| From | Thomas 'PointedEars' Lahn <PointedEars@web.de> |
| Newsgroups | comp.lang.javascript |
| Subject | Re: missing image error |
| Date | Wed, 05 Aug 2020 10:18:41 +0200 |
| Organization | PointedEars Software (PES) |
| Lines | 32 |
| Message-ID | <1669798.VLH7GnMWUR@PointedEars.de> (permalink) |
| References | <mICdnUE2Q-twd7XCnZ2dnUU7-fvNnZ2d@westnet.com.au> <3000437.5fSG56mABF@PointedEars.de> <O-WdnVlrm6U5-rfCnZ2dnUU7-f3NnZ2d@westnet.com.au> |
| Reply-To | Thomas 'PointedEars' Lahn <usenet@PointedEars.de> |
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Andrew Poulos wrote:
> On 5/08/2020 4:44 pm, Thomas 'PointedEars' Lahn wrote:
>> Andrew Poulos wrote:
>>> let img = new Image();
>>>
>>> img.src = 'images/' + name + '.jpg';
>>> img.setAttribute("onerror", "this.onerror=null;
>> ^^^^^^^^^^^^^^^^^^^^ ^^^^^^^
>>> this.src='images/imagenotfound.png'");
>>
>> […]
>> However, for this to work reliably, as always, the event listener has to
>> be defined *before* the property is changed that can fire the event:
>>
>> img.onerror = …;
>> img.src = 'images/' + name + '.jpg';
>
> I take your point and have amended my code. Though does the order matter
> for a dynamically added image?
Of course. But you are not addding any image with this code.
> Can the failure of the image to load happen faster than the event listener
> being defined?
Yes.
--
PointedEars
FAQ: <http://PointedEars.de/faq> | <http://PointedEars.de/es-matrix>
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Back to comp.lang.javascript | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
missing image error Andrew Poulos <ap_prog@hotmail.com> - 2020-08-04 14:58 +1000
Re: missing image error Arno Welzel <usenet@arnowelzel.de> - 2020-08-04 10:29 +0200
Re: missing image error James Kirk <noneya.invalid@gmail.com> - 2020-08-04 22:38 -0400
Re: missing image error Arno Welzel <usenet@arnowelzel.de> - 2020-08-05 07:49 +0200
Re: missing image error Julio Di Egidio <julio@diegidio.name> - 2020-08-04 02:18 -0700
Re: missing image error Andrew Poulos <ap_prog@hotmail.com> - 2020-08-05 13:20 +1000
Re: missing image error Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2020-08-05 08:44 +0200
Re: missing image error Andrew Poulos <ap_prog@hotmail.com> - 2020-08-05 18:02 +1000
Re: missing image error Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2020-08-05 10:18 +0200
Re: missing image error Julio Di Egidio <julio@diegidio.name> - 2020-08-05 02:36 -0700
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