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Recommended website resolution (width and height)? [closed]
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The advice these days is:
Optimize for 1024x768. For most sites this will cover most visitors. Most logs show that 92-99% of your visits will be over 1024 wide. While 1280 is increasingly common, there are still lots at 1024 and some below that. Optimize for this but ...
Why is SELECT * considered harmful?
...ially true when someone adds new columns to underlying tables that didn't exist and weren't needed when the original consumers coded their data access.
Indexing issues. Consider a scenario where you want to tune a query to a high level of performance. If you were to use *, and it returned more col...
OrderBy descending in Lambda expression?
I know in normal Linq grammar, orderby xxx descending is very easy, but how do I do this in Lambda expression?
6 Answers
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Is D a credible alternative to Java and C++? [closed]
...o support in any modern IDEs (there are plugins for both Visual Studio and Xamarin Studio/MonoDevelop), limited dynamic/shared library support, and few bindings to other languages, D is simply not an option today.
If you like what you see of D, by all means, learn it - it shouldn't take long if you...
How do I achieve the theoretical maximum of 4 FLOPs per cycle?
...ting point operations (double precision) per cycle be achieved on a modern x86-64 Intel CPU?
4 Answers
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How does interfaces with construct signatures work?
...in interfaces are not implementable in classes; they're only for defining existing JS APIs that define a 'new'-able function. Here's an example involving interfaces new signatures that does work:
interface ComesFromString {
name: string;
}
interface StringConstructable {
new(n: string): Co...
Static extension methods [duplicate]
Is there any way I can add a static extension method to a class.
4 Answers
4
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pandas GroupBy columns with NaN (missing) values
...Missing Data section of the docs:
NA groups in GroupBy are automatically excluded. This behavior is consistent with R, for example.
One workaround is to use a placeholder before doing the groupby (e.g. -1):
In [11]: df.fillna(-1)
Out[11]:
a b
0 1 4
1 2 -1
2 3 6
In [12]: df.fillna(-1...
How Do You Clear The IRB Console?
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On Mac OS X or Linux you can use Ctrl + L to clear the IRB screen.
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