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Is there a null-coalescing (Elvis) operator or safe navigation operator in javascript?

... Frédéric HamidiFrédéric Hamidi 232k3737 gold badges445445 silver badges455455 bronze badges ...
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Peak-finding algorithm for Python/SciPy

...ant to understand well its parameters width, threshold, distance and above all prominence to get a good peak extraction. According to my tests and the documentation, the concept of prominence is "the useful concept" to keep the good peaks, and discard the noisy peaks. What is (topographic) promine...
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Print string to text file

...t_file.close() If you use a context manager, the file is closed automatically for you with open("Output.txt", "w") as text_file: text_file.write("Purchase Amount: %s" % TotalAmount) If you're using Python2.6 or higher, it's preferred to use str.format() with open("Output.txt", "w") as text...
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Protect .NET code from reverse engineering?

...lt, but ultimately any executable on the local machine is crackable. Eventually, that code has to be converted into native machine code and every application that is runnable is vulnerable. What you want to do is just make it difficult enough to crack to make it not worth peoples' trouble. Some su...
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How can I convert immutable.Map to mutable.Map in Scala?

... Rex KerrRex Kerr 160k2323 gold badges302302 silver badges398398 bronze badges ...
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Block Comments in a Shell Script

...ommands and noh is for nohighlight. Search term highlighting will automatically resume the next time you search for something. Example: :10,100s/^/#/g|noh – Matthew Mar 13 '15 at 20:43 ...
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UITableView row animation duration and completion callback

...o either specify the duration for UITableView row animations, or to get a callback when the animation completes? 10 Answers...
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#include in .h or .c / .cpp?

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How does '20 seconds' work in Scala?

... There are a few things going on. First, Scala allows dots and parens to be omitted from many method calls, so 20 seconds is equivalent to 20.seconds()*. Second, an "implicit conversion" is applied. Since 20 is an Int and Int has no seconds method, the compiler searches ...
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Finding current executable's path without /proc/self/exe

...e) method is to use argv[0]. Although it could be set to anything by the calling program, by convention it is set to either a path name of the executable or a name that was found using $PATH. Some shells, including bash and ksh, set the environment variable "_" to the full path of the executable be...