The onload attribute fires when the image has been loaded, while the onerror attribute fires if an error occurs while loading an image. Sometimes we need to detect upto image load successfully, for example you want to do print text instead of image before load image.
Remember that the loading is asynchronous so you have to continue the script inside the onload and onerror events. Bind error event on the img element. It gets triggered when the image will not successfully load on the web page. The error event is sent to elements, such as images, that are referenced by a document and loaded by the browser. The jQuery docs suggest a plugin to fix this, but it doesn't work. If the src is already set, then the event is firing in the cached case, before you even get the event handler bound.
To fix this, you can loop through checking and triggering the event based off. Note the change from. Can I suggest that you reload it into a non-DOM image object? If it's cached, this will take no time at all, and the onload will still fire. If it isn't cached, it will fire the onload when the image is loaded, which should be the same time as the DOM version of the image finishes loading. Do you really have to do it with jQuery? You can attach the onload event directly to your image as well;.
Set width , max-height and leave height:auto , often it's necessary to set both width and height only if you need to stretch the image; for a more robust solution I would use a plugin like ImagesLoaded — guari.
Work in IE10 — Patryk Padus. This does have a small race condition. The image can be loading in a different thread to the script and so can load between the check of complete and attaching the onload event, in which case nothing will happen. Normally JS is synchronous with the rendering and so you don't have to worry about race conditions but this is an exception.
Show 2 more comments. It is cleaner without inline javascript — hazelnut. Hi, Bjorn, will the onload handler fire when the image is loaded a second time from cache? Cupidvogel no it won't. Dude, you saved my life, I've tried at least a dozen other solutions and yours is the only one that actually worked. I'm seriously thinking about creating 10 more accounts to vote your answer up 10 more times. Seriously thanks! I've never understood people's aversion to inline JS. Image loading happens separately and out of sequence from the rest of the page loading process.
Therefore, this is the only valid solution to getting immediate feedback about image loading completion. However, if someone needs to wait for jQuery to load and that happens later, then they will have to not use the simple solution here and use one of the other solutions Piotr's is probably the best option since it isn't dependent on pseudo-hacks but guari's height check might be important too.
A processing queue could be useful as well. Show 1 more comment. Community Bot 1 1 1 silver badge. Piotr Piotr 4 4 silver badges 11 11 bronze badges. This one worked best for me. I think the key is to set the load handler first and then call it later in the each function. Hope it helps, Edit The accepted answer actually explains why: If the src is already set then the event is firing in the cache cased before you get the event handler bound.
Sammaye Sammaye I've tested this is in a lot of browsers and haven't found it failing anywhere. Would be awesome to find out why, what browser is it in? Because using partials in js. AllisonC AllisonC 2, 4 4 gold badges 27 27 silver badges 44 44 bronze badges.
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