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What is the difference between user variables and system variables?
.... You might need to reboot the computer. (Hopefully, these backups weren't from too long ago, and they contain the info you need.)
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Reason to Pass a Pointer by Reference in C++?
... NULL pointer anymore. This is a case where you modify an external pointer from a function, so it would have a reference to pointer in its signature:
void insert(Node* &list)
{
...
if(!list) list = new Node(...);
...
}
There's an example in this question.
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When to create a new app (with startapp) in Django?
... "applications".
This helps me encapsulate and decouple certain features from one another, improving re-usability should I decide to share a particular "app" with the community at large, and maintainability.
My general approach is to bucket up specific features or feature sets into "apps" as thou...
Prevent double submission of forms in jQuery
...er page load, you can give them a class indicating that, then exclude them from your selector like this:
$('form:not(.js-allow-double-submission)').preventDoubleSubmission();
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Android - custom UI with custom attributes
... this is not the answer, the question is how to programatically change from java
– Fazal
Sep 27 '16 at 17:54
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ASP.NET MVC on IIS 7.5
...%windir%\Microsoft.NET\Framework64\v4.0.30319\aspnet_regiis.exe -ir
Note from David Murdoch's comment:
That the .net version has changed
since this Answer was posted. Check
which version of the framework is in
the %windir%\Microsoft.NET\Framework64
directory and change the command
a...
Why is Github asking for username/password when following the instructions on screen and pushing a n
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Is this secure? Can someone just access this information from my computer?
– Akaisteph7
Sep 24 '19 at 14:41
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Merging two images in C#/.NET
...n over a frame of a video:
Image playbutton;
try
{
playbutton = Image.FromFile(/*somekindofpath*/);
}
catch (Exception ex)
{
return;
}
Image frame;
try
{
frame = Image.FromFile(/*somekindofpath*/);
}
catch (Exception ex)
{
return;
}
using (frame)
{
using (var bitmap = new Bitm...
Bash continuation lines
...well for indented multi-line text strings. It will remove any leading tabs from the here document. (Line terminators will still remain, though.)
cat <<-____HERE
continuation
lines
____HERE
See also http://ss64.com/bash/syntax-here.html
If you need to preserve some, but not all, lea...
Markdown vs markup - are they related?
...
Mark-up is a term from print editing - the editor would go through the text and add annotations (i.e. this in italic, that in bold) for the printers to use when producing the final version. This was called marking up the text.
A computer mark...