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What is the $? (dollar question mark) variable in shell scripting? [duplicate]
...), you will get the return value thrown by the ls command, which should be 0 (default "success" return value). If it doesn't exist, you should get a number other then 0. The exact number depends on the program.
For many programs you can find the numbers and their meaning in the corresponding man pa...
How do I check if a type is a subtype OR the type of an object?
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506
Apparently, no.
Here's the options:
Use Type.IsSubclassOf
Use Type.IsAssignableFrom
is and a...
Determine command line working directory when running node bin script
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answered Sep 2 '12 at 20:55
Vadim BaryshevVadim Baryshev
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RegEx to make sure that the string contains at least one lower case char, upper case char, digit and
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edited Jul 21 '18 at 18:02
Community♦
111 silver badge
answered Oct 13 '09 at 12:03
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Why are Standard iterator ranges [begin, end) instead of [begin, end]?
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+50
The best argument easily is the one made by Dijkstra himself:
You want the size of the range to be a simple difference end − beg...
How to correctly iterate through getElementsByClassName
...Thus:
var slides = document.getElementsByClassName("slide");
for (var i = 0; i < slides.length; i++) {
Distribute(slides.item(i));
}
I haven't tried this myself (the normal for loop has always worked for me), but give it a shot.
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Difference between 'python setup.py install' and 'pip install'
...h Python as of Python 2.7.9 on the Python 2.x series, and as of Python 3.4.0 on the Python 3.x series, making it even easier to use.
So basically, use pip. It only offers improvements over using python setup.py install.
If you're using an older version of Python, can't upgrade, and don't have p...
Can anybody find the TFS “Unshelve” option in Visual Studio 2012?
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answered Apr 20 '12 at 12:43
NockNock
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What is javax.inject.Named annotation supposed to be used for?
...idgessbridges
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Accessing member of base class
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axmrnv
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answered Oct 29 '12 at 14:37
FentonFenton
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