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Get file size, image width and height before upload

...URL API The images sources will be a URL representing the Blob object <img src="blob:null/026cceb9-edr4-4281-babb-b56cbf759a3d"> const EL_browse = document.getElementById('browse'); const EL_preview = document.getElementById('preview'); const readImage = file => { if ( !(/^im...
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Changing image sizes proportionally using CSS?

...portional to the new width. Ex: HTML: <div class="container"> <img src="something.png" /> </div> <div class="container"> <img src="something2.png" /> </div> CSS: .container { width: 200px; height: 120px; } /* resize images */ .container img { w...
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Inputting a default image in case the src attribute of an html is not valid?

Is there any way to render a default image in an HTML <img> tag, in case the src attribute is invalid (using only HTML)? If not, what would be your lightweight way to work around it? ...
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Changing image size in Markdown

... Does not work, but the HTML <img src=http//... width="..." height="..."> works. – BK Batchelor Jul 20 '16 at 3:37 ...
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Switching a DIV background image with jQuery

... .div { /* button size etc properties */ } .expanded {background: url(img/x.gif) no-repeat left top;} .collapsed {background: url(img/y.gif) no-repeat left top;} Or CSS with image sprite .div { background: url(img/sprite.gif) no-repeat left top; /* Other styles */ } .expanded {backg...
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Javascript set img src

... Pure JavaScript to Create img tag and add attributes manually , var image = document.createElement("img"); var imageParent = document.getElementById("body"); image.id = "id"; image.className = "class"; image.src = searchPic.src; // image.s...
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Save An Image To Application Documents Folder From UIView On IOS

...ins(.documentDirectory, .userDomainMask, true)[0] as NSString let img = UIImage(named: "1.jpg")!// Or use whatever way to get the UIImage object let imgPath = URL(fileURLWithPath: documentDirectoryPath.appendingPathComponent("1.jpg"))// Change extension if you want to save as PNG do{ t...
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how to show alternate image if source image is not found? (onerror working in IE but not in mozilla)

... I think this is very nice and short <img src="imagenotfound.gif" alt="Image not found" onerror="this.src='imagefound.gif';" /> But, be careful. The user's browser will be stuck in an endless loop if the onerror image itself generates an error. EDIT To av...
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How can I scale an image in a CSS sprite

...bile [class^="icon-"]{ display: inline-block; background: url('../img/icons/icons.png') no-repeat; width: 64px; height: 51px; overflow: hidden; zoom:0.5; -moz-transform:scale(0.5); -moz-transform-origin: 0 0; } .icon-huge{ zoom:1; -moz-transform:scale(1); ...
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Do I use , , or for SVG files?

Should I use <img> , <object> , or <embed> for loading SVG files into a page in a way similar to loading a jpg , gif or png ? ...