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Check Whether a User Exists
...o check if the user exists, use if with id directly, as if already checks for the exit code. There's no need to fiddle with strings, [, $? or $():
if id "$1" &>/dev/null; then
echo 'user found'
else
echo 'user not found'
fi
(no need to use -u as you're discarding the output anyway)
A...
How to configure 'git log' to show 'commit date'
How can I configure git log to show commit date instead of author date ?
3 Answers
...
Pimpl idiom vs Pure virtual class interface
I was wondering what would make a programmer to choose either Pimpl idiom or pure virtual class and inheritance.
10 Answers...
External VS2013 build error “error MSB4019: The imported project was not found”
...will add the removed node again.
Otherwise, if you need to use webdeploy or you use a build server, the above solution will not work but you can specify the VisualStudioVersion property in your build script:
msbuild myproject.csproj /p:VisualStudioVersion=12.0
or edit your build definition:
...
How to dynamically create generic C# object using reflection? [duplicate]
...peof(Item) };
var makeme = d1.MakeGenericType(typeArgs);
object o = Activator.CreateInstance(makeme);
Per your edit: For that case, you can do this ...
var d1 = Type.GetType("GenericTest.TaskA`1"); // GenericTest was my namespace, add yours
Type[] typeArgs = { typeof(Item) };
var makeme = d1.Mak...
How do you represent a JSON array of strings?
This is all you need for valid JSON, right?
4 Answers
4
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Fit cell width to content
Given the following markup, how could I use CSS to force one cell (all cells in column) to fit to the width of the content within it rather than stretch (which is the default behaviour)?
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Should I use a data.frame or a matrix?
...d to be of different types (numeric/character/logical etc.). Matrices are for data of the same type.
Consequently, the choice matrix/data.frame is only problematic if you have data of the same type.
The answer depends on what you are going to do with the data in data.frame/matrix. If it is going ...
How to Set Variables in a Laravel Blade Template
...ntation and I can't figure out how to assign variables inside a template for use later. I can't do {{ $old_section = "whatever" }} because that will echo "whatever" and I don't want that.
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How to determine the screen width in terms of dp or dip at runtime in Android?
...ightPixels / density;
float dpWidth = outMetrics.widthPixels / density;
OR
Thanks @Tomáš Hubálek
DisplayMetrics displayMetrics = context.getResources().getDisplayMetrics();
float dpHeight = displayMetrics.heightPixels / displayMetrics.density;
float dpWidth = displayMetrics.widthPixels /...