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Why does the C++ map type argument require an empty constructor when using []?
... Why is that std::<map>::value_type there in the insert call?
– thomthom
May 6 '15 at 11:53
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How to bind multiple values to a single WPF TextBlock?
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@Preet - I'm actually not certain if the '{}' is necessary in this case, I included it since it was used on the MSDN sample. In general however, it is needed as an escape sequence for the XAML parser to avoid confusion with the Binding marku...
How to use Bash to create a folder if it doesn't already exist?
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There is actually no need to check whether it exists or not. Since you already wants to create it if it exists , just mkdir will do
mkdir -p /home/mlzboy/b2c2/shared/db
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Does setWidth(int pixels) use dip or px?
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You can also call nbDips * getResources().getDisplayMetrics().density
– Romain Guy
Mar 9 '10 at 5:08
9
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How to document a string type in jsdoc with limited possible values
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The problem with this approach is that it does not allow to document the individual values. I have an issue with JSDoc. github.com/jsdoc3/jsdoc/issues/1065
– Gajus
Sep 17 '15 at 13:46
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How do I address unchecked cast warnings?
...ng>) deserializeMap();
There is no way to determine whether the Map really should have the generic parameters <String, String>. You must know beforehand what the parameters should be (or you'll find out when you get a ClassCastException). This is why the code generates a warning, because ...
Can existing virtualenv be upgraded gracefully?
...6 virtualenv to "revirtual" the existing directory. You will have to reinstall all the modules you installed though. I often have a virtual directory for developing a module, and virtualenv the same directory with many versions of Python, and it works just fine. :)
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“unary operator expected” error in Bash if condition
... you don't need to use two "[", which amounts to two processes ("[" is actually a program) instead of one.
It goes by this syntax: ${VARIABLE:-default}.
The whole thing has to be thought in such a way that this "default" value is something distinct from a "valid" value/content.
If that's not poss...
Should composer.lock be committed to version control?
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If you update your libs, you want to commit the lockfile too. It basically states that your project is locked to those specific versions of the libs you are using.
If you commit your changes, and someone pulls your code and updates the dependencies, the lockfile should be unmodified. If it is ...
Is it possible to get element from HashMap by its position?
How to retrieve an element from HashMap by its position, is it possible at all?
14 Answers
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