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Cannot add or update a child row: a foreign key constraint fails
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Appending a vector to a vector [duplicate]
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Is it better to return null or empty collection?
...t; private set;}
public Bar() { Foos = new List<Foo>(); }
In .NET 4.6.1, you can condense this quite a lot:
public List<Foo> Foos { get; } = new List<Foo>();
When talking about methods that return enumerables, you can easily return an empty enumerable instead of null...
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“Failed to load platform plugin ”xcb“ ” while launching qt5 app on linux without qt installed
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Abe MishlerAbe Mishler
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Extracting bits with a single multiplication
...don't need and put the ones we want in the right place.
Multiplication by 4 (00000100) would shift everything left by 2 and get you to a00b0000 . To get the b to move up we need to multiply by 1 (to keep the a in the right place) + 4 (to move the b up). This sum is 5, and combined with the earlier...
How do I show a console output/window in a forms application?
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edited Oct 1 '14 at 3:36
Asherah
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Apache and Node.js on the Same Server
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YakovL
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answered Sep 4 '13 at 1:34
Steven de SalasS...
Android and setting alpha for (image) view alpha
... 1.0 instead of 0 to 255. Use it e.g. like
<ImageView android:alpha="0.4">
However, the latter in available only since API level 11.
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pytest: assert almost equal
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I noticed that this question specifically asked about py.test. py.test 3.0 includes an approx()...
HTML5 Local Storage fallback solutions [closed]
... If you enable cookies, it will work in everything (but will be limited to 4 kB).
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