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Why doesn't margin:auto center an image?

The div expands to 100% as it should but the image does not center itself. Why? 8 Answers ...
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How do you reset the stored credentials in 'git credential-osxkeychain'?

I've followed the GitHub instructions for setting up my account, and I'm able to clone, but I'm unable to push remotely. 7 ...
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How to use the CancellationToken property?

... } Console.Write("345"); } } That's it. You always need to handle cancellation by yourself - exit from method when it is appropriate time to exit (so that your work and data is in consistent state) UPDATE: I prefer not writing while (!cancelToken.IsCancellationRequested) because ofte...
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How can I hash a password in Java?

... good algorithm to use for password hashing. byte[] salt = new byte[16]; random.nextBytes(salt); KeySpec spec = new PBEKeySpec("password".toCharArray(), salt, 65536, 128); SecretKeyFactory f = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA1"); byte[] hash = f.generateSecret(spec).getEncoded(); Bas...
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Create Generic method constraining T to an Enum

...ly true for constraints on a generic extension method, which is extremely handy for operating on enums, except for the fact that those extension methods are like a virus that infects all your objects. IConvertable at least narrows it down quite a bit. – russbishop ...
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How to write to a file, using the logging Python module?

... An example of using logging.basicConfig rather than logging.fileHandler() logging.basicConfig(filename=logname, filemode='a', format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s', datefmt='%H:...
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Convert string in base64 to image and save on filesystem in Python

...cAeHkAAeLqlDIAAAAASUVORK5CYII=' Decoded the data using the base64 codec, and then write it to the filesystem. # In Python 2.7 fh = open("imageToSave.png", "wb") fh.write(img_data.decode('base64')) fh.close() # or, more concisely using with statement with open("imageToSave.png", "wb") as fh: ...
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Is it abusive to use IDisposable and “using” as a means for getting “scoped behavior” for exception

Something I often used back in C++ was letting a class A handle a state entry and exit condition for another class B , via the A constructor and destructor, to make sure that if something in that scope threw an exception, then B would have a known state when the scope was exited. This isn't pur...
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What's the difference between JavaScript and JScript?

... have always wondered WHaT tHE HecK?!? is the difference between JScript and JavaScript. 12 Answers ...
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Does Go have “if x in” construct similar to Python?

... answered Mar 10 '13 at 15:36 andybalholmandybalholm 11.6k22 gold badges2828 silver badges4040 bronze badges ...