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How to force the browser to reload cached CSS/JS files?

I have noticed that some browsers (in particular, Firefox and Opera) are very zealous in using cached copies of .css and .js files, even between browser sessions. This leads to a problem when you update one of these files but the user's browser keeps on using the cached copy. ...
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Detecting a mobile browser

...m detectmobilebrowsers.com): Here's a function that uses an insanely long and comprehensive regex which returns a true or false value depending on whether or not the user is browsing with a mobile. window.mobileCheck = function() { let check = false; (function(a){if(/(android|bb\d+|meego).+mob...
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Refresh image with a new one at the same url

...ppend the current timestamp automatically when you are creating the image, and it will make the browser look again for the image instead of retrieving the one in the cache. share | improve this answ...
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What does SynchronizationContext do?

...alling the static SynchronizationContext.SetSynchronizationContext method, and the current context of the running thread can be queried via the SynchronizationContext.Current property. Despite what I just wrote (each thread having an associated synchronization context), a SynchronizationContext does...
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Add Bootstrap Glyphicon to Input Box

...="form-control" /> </div> You can use the following CSS to left and right align glyphs: /* enable absolute positioning */ .inner-addon { position: relative; } /* style icon */ .inner-addon .glyphicon { position: absolute; padding: 10px; pointer-events: none; } /* align icon...
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What is a “thread” (really)?

I have been trying to find a good definition, and get an understanding, of what a thread really is. 10 Answers ...
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Understanding reference counting with Cocoa and Objective-C

I'm just beginning to have a look at Objective-C and Cocoa with a view to playing with the iPhone SDK. I'm reasonably comfortable with C's malloc and free concept, but Cocoa's references counting scheme has me rather confused. I'm told it's very elegant once you understand it, but I'm just not o...
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Mock vs MagicMock

My understanding is that MagicMock is a superset of Mock that automatically does "magic methods" thus seamlessly providing support for lists, iterations and so on... Then what is the reason for plain Mock existing? Isn't that just a stripped down version of MagicMock that can be practically ...
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How often does python flush to a file?

... to use the system default, which is usually line buffered for tty devices and fully buffered for other files. If omitted, the system default is used. code: bufsize = 0 f = open('file.txt', 'w', buffering=bufsize) shar...
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Add a prefix to all Flask routes

...n as a sub-part of that WSGI container (anything that speaks WSGI will do) and to set your APPLICATION_ROOT config value to your prefix: app.config["APPLICATION_ROOT"] = "/abc/123" @app.route("/") def index(): return "The URL for this page is {}".format(url_for("index")) # Will return "The UR...