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WebSockets vs. Server-Sent events/EventSource
...eting technologies. What is the difference between them? When would you choose one over the other?
6 Answers
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When to favor ng-if vs. ng-show/ng-hide?
...from DOM. This means that all your handlers or anything else attached to those elements will be lost. For example, if you bound a click handler to one of child elements, when ng-if evaluates to false, that element will be removed from DOM and your click handler will not work any more, even after ng-...
Django ModelForm: What is save(commit=False) used for?
....lower().endswith(('.png','jpg','jpeg','.ai','.bmp','.gif','.ico','.psd','.svg','.tiff','.tif')):
attachment.file_type = "image"
if attachment.filename.lower().endswith(('.mp4','.mov','.3g2','.avi','.flv','.h264','.m4v','.mpg','.mpeg','.wmv')):
...
Draw radius around a point in Google map
...use to approximate a circle. However, this guy did it using vml for IE and svg for other browsers (see "SCALED CIRCLES" section).
Now, going back to your question about Google Latitude using a scaled circle image (and this is probably the most useful to you): if you know the radius of your circle w...
Is the creation of Java class files deterministic?
...Are there any compiler options to avoid differences? Is a difference only possibly in theory or does Oracle's javac actually produce different class files for the same input and compiler options?
...
Nodejs Event Loop
...erstand node.js architecture in order to write native modules.
What I am posting here is my understanding of node.js and this might be a bit off track as well.
Libev is the event loop which actually runs internally in node.js to perform simple event loop operations. It's written originally for *n...
“used as value” in function call
... brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 4...
Disable all gcc warnings
... brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 47.1084 7.58816C47.4091 7.46349 4...
What is the reason for performing a double fork when creating a daemon?
...irst child is
a session leader without a controlling terminal, it's possible for
it to acquire one by opening a terminal in the future (System V-
based systems). This second fork guarantees that the child is no
longer a session leader, preventing the daemon from ever acquiri...
What is the effect of encoding an image in base64?
...request. Embedding base64 images might save bandwith.
Do not base64 encode SVG images, because gzip is more effective on XML than on base64.
Programming: On dynamically generated images it is easier to deliver them in one request as to coordinate two dependent requests.
Deeplinks: If you want to pre...