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Why do some functions have underscores “__” before and after the function name?
...cial" or "magic" methods.
While you can call these methods directly ([10, 20].__len__() for example), the presence of the underscores is a hint that these methods are intended to be invoked indirectly (len([10, 20]) for example). Most python operators have an associated "magic" method (for example...
Significance of a .inl file in C++
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paercebalpaercebal
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REST API Authentication
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answered Nov 20 '13 at 4:00
KingzKingz
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Create a tar.xz in one command
...emember to man tar :)
tar cfJ <archive.tar.xz> <files>
Edit 2015-08-10:
If you're passing the arguments to tar with dashes (ex: tar -cf as opposed to tar cf), then the -f option must come last, since it specifies the filename (thanks to @A-B-B for pointing that out!). In that case, t...
How do I check if a Sql server string is null or empty
...ick HarringtonPatrick Harrington
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Get current date in milliseconds
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– Erik van der Neut
Sep 10 '14 at 4:20
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Note that CFAbsoluteTimeGetCurrent() returns the time r...
How to check what user php is running as?
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More details would be useful, but assuming it's a linux system, and assuming php is running und...
PHP expresses two different strings to be the same [duplicate]
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PHP uses IEEE 754 for floats, and your numbers are so small that they evalue to 0.
See: http:/...
How to write log to file
...untu 18.04.3
– Ryosuke Hujisawa
Feb 20 at 23:07
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127 Return code from $?
...exist.
– MatthewKremer
Mar 4 '14 at 20:48
3
You can try using which [program] to see which binary...