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Why are flag enums usually defined with hexadecimal values

...orld of base ten anymore. We're dealing with bits - the machine's world - and we're gonna play by its rules." Hexadecimal is rarely used unless you're dealing with relatively low-level topics where the memory layout of data matters. Using it hints at the fact that that's the situation we're in no...
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How to make an image center (vertically & horizontally) inside a bigger div [duplicate]

...px; } (Assumes a div with id="demo" as you are already specifying height and width adding a background shouldn't be an issue) Let the browser take the strain. share | improve this answer ...
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How can I check if a value is a json object?

My server side code returns a value which is a json object on success and a string 'false' on failure. Now how can I check whether the returned value is a json object? ...
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How to show first commit by 'git log'?

...’s initial commit, gitk, some initially separate tools, git-gui, gitweb, and git-p4). In this case, we know that e83c516 is the one we are probably interested in. It is both the earliest commit and a root commit. It is not so simple in the general case. Imagine that libfoo has been in developmen...
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ASP.NET 4.5 has not been registered on the Web server

In my Win 7 development machine, and in order to use SQL Express instance instead of the localDB installed by default. I unchecked "Use IIS Express" in my MVC 4 project properties page (Web tab), then I got the following error: ...
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How to get the command line args passed to a running process on unix/linux systems?

On SunOS there is pargs command that prints the command line arguments passed to the running process. 13 Answers ...
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Checking if a blob exists in Azure Storage

...exists in a particular container. I'll be downloading it if it does exist, and if it doesn't then I'll do something else. 1...
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django.core.exceptions.ImproperlyConfigured: Error loading MySQLdb module: No module named MySQLdb

... I am using virtual env, and i have installed mysql, django... however when i do python manage.py syncdb It gives me the same error that i have posted – getitstarted Mar 9 '13 at 23:13 ...
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Breaking/exit nested for in vb.net

...you want: Goto. In general, using goto is considered to be bad practice (and rightfully so), but using goto solely for a forward jump out of structured control statements is usually considered to be OK, especially if the alternative is to have more complicated code. For Each item In itemList ...
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What is the purpose of flush() in Java streams?

In Java, flush() method is used in streams. But I don't understand what are all the purpose of using this method? 6 Answe...