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Apply multiple functions to multiple groupby columns
...] < 0].sum(). This is starting to get pretty messy, though--I think for readability manual looping may be preferable, plus I'm not sure there's a way to give it my preferred name in the agg argument (instead of <lambda>). I'll hold out hope that someone may know a more straightforward way.....
RegEx match open tags except XHTML self-contained tags
...s scourge using regex to parse HTML has doomed humanity to an eternity of dread torture and security holes using regex as a tool to process HTML establishes a breach between this world and the dread realm of c͒ͪo͛ͫrrupt entities (like SGML entities, but more corrupt) a mere glimpse of the world ...
Behaviour for significant change location API when terminated/suspended?
...n with my code development right now. As I mentioned before, I'm not quite ready to test this on a device so I can't tell if I've interpreted everything correctly, so commenters, please feel free to correct me (though I've done substantial reading on the topic).
Oh, and if by some stroke of bad luc...
How to work with complex numbers in C?
...aginary is cimag(a). carg(a) is for complex argument.
To directly access (read/write) real an imag part you may use this unportable GCC-extension:
__real__ a = 1.4;
__imag__ a = 2.0;
float b = __real__ a;
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What breaking changes are introduced in C++11?
..._t, char32_t, constexpr, decltype, noexcept, nullptr, static_assert, and thread_local
Certain integer literals larger than can be represented by long could change from an unsigned integer type to signed long long.
Valid C++ 2003 code that uses integer division rounds the result toward ...
JavaScript get clipboard data on paste event (Cross browser)
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FYI: Edge now supports reading data with MIME-Type text/html using the W3C Clipboard API. In the past such an attempt would throw an exception. So one no longer needs this workaround/hack for Edge.
– Jenny O'Reilly
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What is NoSQL, how does it work, and what benefits does it provide? [closed]
...m, will only take microseconds." -- can't I get the same non-transactional read perfomance in for example psql?
– Nakilon
Mar 28 '17 at 15:40
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Why should I avoid multiple inheritance in C++?
...composition of features, instead of inheritance
Be wary of the Diamond of Dread
Consider inheritance of multiple interfaces instead of objects
Sometimes, Multiple Inheritance is the right thing. If it is, then use it.
Be prepared to defend your multiple-inherited architecture in code reviews
1. Per...
Seeding the random number generator in Javascript
...uivalent to Math.random(), if you want random numbers of a specific range, read this article on MDN. If you only want the raw bits, simply remove the final division operation.
Another thing to note are the limitations of JS. Numbers can only represent whole integers up to 53-bit resolution. And whe...
What is a sealed trait?
...d to summon typeclass instances in a way that's a bit terser and easier to read than an implicit parameter ((implicit fa: F[A])), but it still works the exact same way under the hood, and as Daniel points out, traits don't get to do that.
– mirichan
Sep 30 '19 ...