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pandas: multiple conditions while indexing data frame - unexpected behavior
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How does git store files?
I just started learning git and to do so I started reading the Git Community Book , and in this book they say that SVN and CVS store the difference between files and that git stores a snapshot of all the files.
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What does a \ (backslash) do in PHP (5.3+)?
... PhpUnit likes to use it :) \var_export() if (\defined('PHPUNIT_COMPOSER_INSTALL')) {;}
– Eugene Kaurov
Sep 7 '17 at 9:23
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How to ignore all hidden directories/files recursively in a git repository?
...tignore
Edit: Added the .gitignore file itself (matters if it is not yet commited).
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What does the constant 0.0039215689 represent?
...Note:
If you're wondering why such a micro-optimization isn't left to the compiler, it's because it is an unsafe floating-point optimization. In other words:
x / 255 != x * (1. / 255)
due to floating-point round-off errors.
So while modern compilers may be smart enough to do this optimization...
Difference between std::result_of and decltype
...nd finally in C++0x. Therefore result_of has an advantage that is backward-compatible (with a suitable library).
decltype is an entirely new thing in C++0x, does not restrict only to return type of a function, and is a language feature.
Anyway, on gcc 4.5, result_of is implemented in terms of de...
How does bash tab completion work?
...ending a lot of time in the shell lately and I'm wondering how the tab autocomplete works. What's the mechanism behind it? How does the bash know the contents of every directory?
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What is the purpose of a plus symbol before a variable?
...er or not d is a non-zero number.
Reference here. And, as pointed out in comments, here.
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Disable IntelliJ Starred (Package) Imports?
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62
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jquery $(window).height() is returning the document height
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