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What's the difference between the various methods to get a Context?

...ion about contexts as well: In a regular Android application, you usually have two kinds of Context, Activity and Application. Reading the article a little bit further tells about the difference between the two and when you might want to consider using the application Context (Activity.get...
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How to search for file names in Visual Studio?

...e from Google or elsewhere, this answer is probably the best answer out of all of them. To summarize, simply hit: CTRL + , And then start typing the file name. share | improve this answer ...
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New to MongoDB Can not run command mongo

... After installing the MongoDB you should manually create a data folder. By default MongoDB will store data in /data/db, but it won't automatically create that directory. To create it, do: $ sudo mkdir -p /data/db/ $ sudo chown `id -...
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Convert HashBytes to VarChar

...'t work in SQL 2005. If you're using SQL 2008 or above, then use CONVERT() all you want. Sadly I'm not aware of a single command which will work for all SQL versions, so either do some crazy version checking in your script, or just make a note somewhere that you need to fix the function if you upgra...
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Django using get_user_model vs settings.AUTH_USER_MODEL

...s.AUTH_USER_MODEL will delay the retrieval of the actual model class until all apps are loaded. get_user_model will attempt to retrieve the model class at the moment your app is imported the first time. get_user_model cannot guarantee that the User model is already loaded into the app cache. It mi...
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Why does scanf() need “%lf” for doubles, when printf() is okay with just “%f”?

...cross-use" %lf with float or %f with double. But there's no reason to actually do it in practice. Don't use %f to printf arguments of type double. It is a widespread habit born back in C89/90 times, but it is a bad habit. Use %lf in printf for double and keep %f reserved for float arguments. ...
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CSS does the width include the padding?

...width: 10em; padding: 2em; border: 1em; } would be 10em wide. In contrast, all standards-fearing browsers default to the "content-box" box model. In this model, the width of an element does not include padding or borders. For example: #foo { width: 10em; padding: 2em; border: 1em; } will actually be...
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Using a 'using alias = class' with generic types? [duplicate]

... Disappointing answer but upvoting all the same (since the answer is correct and relevant). :-/ – BrainSlugs83 Aug 30 '14 at 3:26 13 ...
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How to pass “Null” (a real surname!) to a SOAP web service in ActionScript 3

...mx.rpc.xml.*. At line 1795 of XMLEncoder (in the 3.5 source), in setValue, all of the XMLEncoding boils down to currentChild.appendChild(xmlSpecialCharsFilter(Object(value))); which is essentially the same as: currentChild.appendChild("null"); This code, according to my original fiddle, retur...
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What is the Python 3 equivalent of “python -m SimpleHTTPServer”

...as been merged into http.server in Python 3.0. The 2to3 tool will automatically adapt imports when converting your sources to 3.0. So, your command is python -m http.server, or depending on your installation, it can be: python3 -m http.server ...