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Deep null checking, is there a better way?
Note: This question was asked before the introduction of the .? operator in C# 6 / Visual Studio 2015 .
16 Answers
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bash: Bad Substitution
This bash script gives me Bad substitution error on Ubuntu. Any help will be highly appreciated.
11 Answers
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Difference between framework vs Library vs IDE vs API vs SDK vs Toolkits? [closed]
...When you hear 'toolkit' in a programming context, it will often refer to a set of libraries intended for GUI development. Since toolkits are UI-centric, they often come with plugins (or standalone IDE's) that provide screen-painting utilities. (e.g. GWT)
Framework: While not the prevalent notion, ...
How to check if a python module exists without importing it
...supposed existing module
except ImportError:
pass
Useful in Django's settings.pyfor example.
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Is it possible to have a multi-line comments in R? [duplicate]
I found this old thread (from over a year ago), which explains how come R doesn't support a multi-line comments (like /* comment */ of PHP, for example).
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Objective-C parse hex string to integer
...ould like to know how to parse a hex string, representing a number, in Objective-C. I am willing to use both an objective, or a C-based method, either is fine.
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How to grep (search) committed code in the Git history
... at all. My command is > git log -p --all -S 'public string DOB { get; set; } = string.Empty;' and every time I try to run it I get > fatal: ambiguous argument 'string': unknown revision or path not in the working tree. > Use '--' to separate paths from revisions, like this: > 'git &l...
Assignment in an if statement
... _name;
public string Name
{
get { return _name; }
set
{
_name = value;
Console.WriteLine("Name is now " + _name);
}
}
}
public class Duck : Animal
{
public void Fly()
{
Console.WriteLine("Flying");
}
}
gets o...
Equivalent of “throw” in R
How does one "throw" an error in R? I have a function that takes a data frame and some column names and does stuff with them. If the columns don't exist, I want the function to stop and to stop all functions depending on it.
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A top-like utility for monitoring CUDA activity on a GPU
I'm trying to monitor a process that uses CUDA and MPI, is there any way I could do this, something like the command "top" but that monitors the GPU too?
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