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Quick-and-dirty way to ensure only one instance of a shell script is running at a time
... signal but just checks if a process with the given PID exists. Also the call to trap will ensure that the lockfile is removed even when your process is killed (except kill -9).
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Link vs compile vs controller
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Compile :
This is the phase where Angular actually compiles your directive. This compile function is called just once for each references to the given directive. For example, say you are using the ng-repeat directive. ng-repeat will have to look up the element it is atta...
Limitations of Intel Assembly Syntax Compared to AT&T [closed]
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There is really no advantage to one over the other. I agree though that Intel syntax is much easier to read. Keep in mind that, AFAIK, all GNU tools have the option to use Intel syntax also.
It looks like you can make GDB use Intel syn...
Json.net serialize/deserialize derived types?
...Derived). This way, it doesn't bloat your JSON as much as TypeNameHandling.All.
– AJ Richardson
Mar 25 '15 at 13:18
I ...
Is there a way to run Python on Android?
...nux, Windows, OS X, Android and iOS. You can run the same [python] code on all supported platforms.
Kivy Showcase app
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Why is '+' not understood by Python sets?
...t int/long) define this operation across a sequence of boolean values and call it "bitwise or". In fact this operation is so similar to the set union that binary integers are sometimes also called "Bit sets", where the elements in the set are taken to be the natural numbers.
Because int already de...
Setting design time DataContext on a Window is giving a compiler error?
...set the design time d:DataContext below, which I can successfully do for all my various UserControls, but it gives me this error when I try to do it on the window...
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Switch statement fallthrough in C#?
Switch statement fallthrough is one of my personal major reasons for loving switch vs. if/else if constructs. An example is in order here:
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Python memory leaks [closed]
... have a long-running script which, if let to run long enough, will consume all the memory on my system.
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Understanding ibeacon distancing
...t 1 meter away. Each beacon must be calibrated with this txPower value to allow accurate distance estimates.
While the distance estimates are useful, they are not perfect, and require that you control for other variables. Be sure you read up on the complexities and limitations before misusing thi...