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Get value from JToken that may not exist (best practices)
...ou want if you combine it with nullable value types and the ?? operator:
width = jToken.Value<double?>("width") ?? 100;
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What is “lifting” in Scala?
.../ "lifted". Unfortunately, it is not explained what that exactly means. I did some research, and it seems that lifting has something to do with functional values or something like that, but I was not able to find a text that explains what lifting actually is about in a beginner friendly way.
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Passing two command parameters using a WPF binding
...erter="{StaticResource YourConverter}">
<Binding Path="Width" ElementName="MyCanvas"/>
<Binding Path="Height" ElementName="MyCanvas"/>
</MultiBinding>
</Button.CommandParameter>
</Button>
In your converter:
public class YourCo...
When do I need to use AtomicBoolean in Java?
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@axtavt: I think it's a perfectly valid real-world example if initialized is simply being used to ensure that one and only one thread will invoke the initialize() method. Obviously initialized being true doesn't mean that initialization has definitely completed ...
Git: Set up a fetch-only remote?
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I don't think you can remove the push URL, you can only override it to be something other than the pull URL. So I think the closest you'll get is something like this:
$ git remote set-url --push origin no-pushing
$ git push
fatal: 'no-pushing' does not appear to be a git repository
fa...
ctypes - Beginner
...Here's a simple Hello world example:
testlib.c
#include <stdio.h>
void myprint(void);
void myprint()
{
printf("hello world\n");
}
Now compile it as a shared library (mac fix found here):
$ gcc -shared -Wl,-soname,testlib -o testlib.so -fPIC testlib.c
# or... for Mac OS X
$ gcc -shared...
Start / Stop a Windows Service from a non-Administrator user account
...numerate a DS object.
SW: ADS_RIGHT_DS_SELF - Access allowed only after validated rights checks supported by the object are performed. This flag can be used alone to perform all validated rights checks of the object or it can be combined with an identifier of a specific validated right to perform on...
In git, is there a way to show untracked stashed files without applying the stash?
If I run git stash -u , I can stash untracked files. However, said untracked files don't show up at all with git stash show stash@{0} . Is there any way to show untracked stashed files without applying the stash?
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How do I find Waldo with Mathematica?
...eekend: What is a good way to solve those Where's Waldo? [ 'Wally' outside of North America] puzzles, using Mathematica (image-processing and other functionality)?
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Argparse: Required arguments listed under “optional arguments”?
...them is required. Unfortunately, when the user runs the script without providing the argument, the displayed usage/help text does not indicate that there is a non-optional argument, which I find very confusing. How can I get python to indicate that an argument is not optional?
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