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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...
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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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...
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...
String formatting: % vs. .format vs. string literal
...on 2.6 introduced the str.format() method with a slightly different syntax from the existing % operator. Which is better and for what situations?
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Java code To convert byte to Hexadecimal
...want each byte String of that array to be converted to its corresponding hexadecimal values.
19 Answers
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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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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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GetType() can lie?
...cessfully lied, right?
Well, yes and no... Consider that using this as an exploit would mean using your BadFoo instance as an argument to a method somewhere, that expects likely an object or a common base type for a hierarchy of objects. Something like this:
public void CheckIfInt(object ob)
{
...