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NSUserDefaults - How to tell if a key exists
I'm working on a small iPhone app, and I am using NSUserDefaults as my data persistence. It only has to keep track of a few things, such as some names and some numbers so I figure I might as well keep it simple.
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Add column to SQL Server
...erver 2008 the first one is a metadata only change. The second will update all rows.
In SQL Server 2012+ Enterprise edition the second one is a metadata only change too.
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Converting String array to java.util.List
...>(Arrays.asList(new String[]{"one", "two", "three"}));
This will copy all elements from the source array into a new list (complexity: O(n))
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nuget 'packages' element is not declared warning
..." type="xs:string" use="optional" />
<xs:attribute name="allowedVersions" type="xs:string" use="optional" />
</xs:complexType>
</xs:element>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>
Location o...
How to resize a VirtualBox vmdk file
... iso from within the virtualbox settings).
P.S. If your new size is too small, you'll get the same error even with your new vdi file.
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Convert UNIX epoch to Date object
...16:32:00 CST"
R> anydate(1352068320)
[1] "2012-11-04"
R>
Note how all this works without any format or origin arguments.
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Turn Pandas Multi-Index into column
...he parameter is drop=False (which will keep the index values as columns).
All you have to do add .reset_index(inplace=True) after the name of the DataFrame:
df.reset_index(inplace=True)
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Datetime - Get next tuesday
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@brenjt: Actually I'd say that Sven's is more versatile, as you can specify the day of week, but it's your call :) (I've now edited mine to give a more generalized version.)
– Jon Skeet
Jun 14 '11 at...
How do you render primitives as wireframes in OpenGL?
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making two calls is redundant. use GL_FRONT_AND_BACK
– shoosh
Sep 30 '08 at 9:01
6
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ngClass style with dash in key
I hope this saves someone a headache with styles that use dashes, especially since bootstrap has become so popular.
3 Answe...