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How do I pass the this context to a function?
...
Another basic example:
NOT working:
var img = new Image;
img.onload = function() {
this.myGlobalFunction(img);
};
img.src = reader.result;
Working:
var img = new Image;
img.onload = function() {
this.myGlobalFunction(img);
}.bind(this);
img.src = reader.re...
Convert an image to grayscale in HTML/CSS
...lters has landed in Webkit. So we now have a cross-browser solution.
img {
filter: gray; /* IE6-9 */
-webkit-filter: grayscale(1); /* Google Chrome, Safari 6+ & Opera 15+ */
filter: grayscale(1); /* Microsoft Edge and Firefox 35+ */
}
/* Disable grayscale on hover */
img:hove...
SVG drop shadow using css3
... 3px 2px rgba(0, 0, 0, .7));
/* Similar syntax to box-shadow */
}
<img src="https://upload.wikimedia.org/wikipedia/commons/c/ce/Star_wars2.svg" alt="" class="shadow" width="200">
<!-- Or -->
<svg class="shadow" ...>
<rect x="10" y="10" width="200" height="100" fi...
Rails: How to reference images in CSS within Rails 4
... the proper name adjusted. Here's what I mean. I have a file called logo.png. Yet when it shows up on heroku it is viewed as:
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Do I need Content-Type: application/octet-stream for file download?
...ine the use of Content-Disposition with other content-types, such as image/png or even text/html to indicate you want saving rather than display. It used to be the case that some browsers would ignore it in the case of text/html but I think this was some long time ago at this point (and I'm going to...
How do I read image data from a URL in Python?
...Image
import requests
from io import BytesIO
response = requests.get(url)
img = Image.open(BytesIO(response.content))
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Embedding SVG into ReactJS
...s. You can use other React components here too. Here, I'll show you.
<img src="/path/to/myfile.png" />
</SVG>
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Google Chrome Extensions - Can't load local images with CSS
...ipt. From docs:
//Code for displaying <extensionDir>/images/myimage.png:
var imgURL = chrome.extension.getURL("images/myimage.png");
document.getElementById("someImage").src = imgURL;
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Images can't contain alpha channels or transparencies
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AFAIK png with transparency is not allowed. use jpg OR update your png (photoshop or whatever you using to create the png) and delete the transparency areas. if you work with shadows, use jpg, that will do no headaches.
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Unescape HTML entities in Javascript?
...odes.length === 0 ? "" : e.childNodes[0].nodeValue;
}
htmlDecode("&lt;img src='myimage.jpg'&gt;");
// returns "<img src='myimage.jpg'>"
Basically I create a DOM element programmatically, assign the encoded HTML to its innerHTML and retrieve the nodeValue from the text node created ...