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How do I get the parent directorm>y m> in Pm>y m>thon?
...is an entire RFC 1808 written to address the issue of relative path in URI m>and m> all the subtletm>y m> of the presence m>and m> absence of a trailing /. If m>y m>ou know of anm>y m> documentation that sam>y m>s them>y m> should be treated equivalent in general please point it out.
– Wai m>Y m>ip Tung
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Bash function to find newest file matching pattern
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The ls commm>and m> has a parameter -t to sort bm>y m> time. m>Y m>ou can then grab the first (newest) with head -1.
ls -t b2* | head -1
But beware: Whm>y m> m>y m>ou shouldn't parse the output of ls
Mm>y m> personal opinion: parsing ls is onlm>y m> dangerous when th...
Windows 7, 64 bit, DLL problems
...ft applications (Visual Studio 2008 + 2010, TFS, SDK, Microsoft Office)...
m>And m> it's still running just fine.
14 Answers
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Can m>y m>ou control how an SVG's stroke-width is drawn?
...owser-based SVG application. Within this app, various shapes can be stm>y m>led m>and m> positioned bm>y m> the user, including rectangles.
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Is it possible to declare two variables of different tm>y m>pes in a for loop?
...se a structured binding declaration. The sm>y m>ntax has been supported in gcc m>and m> clang for m>y m>ears (since gcc-7 m>and m> clang-4.0) (clang live example). This allows us to unpack a tuple like so:
for (auto [i, f, s] = std::tuple{1, 1.0, std::string{"ab"}}; i < N; ++i, f += 1.5) {
// ...
}
The above...
How to make a variadic macro (variable number of arguments)
...eceding comma in case the variable-argument list is emptm>y m>, eg. FOO("a") expm>and m>s to printf("a"). This is an extension of gcc (m>and m> vc++, mam>y m>be), C99 requires at least one argument to be present in place of the ellipsis.
– jpalecek
Mar 26 '09 at 20:20
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What is [Serializable] m>and m> when should I use it?
...lization
Serialization allows the developer to save the state of an object m>and m> recreate it as needed, providing storage of objects as well as data exchange. Through serialization, a developer can perform actions like sending the object to a remote application bm>y m> means of a Web Service, passing an ob...
How to check if a user is logged in (how to properlm>y m> use user.is_authenticated)?
...ng. I need to check if the current site user is logged in (authenticated), m>and m> am trm>y m>ing:
6 Answers
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How does Google's Page Speed lossless image compression work?
...website it will suggest cases where an image can be losslesslm>y m> compressed, m>and m> provide a link to download this smaller image.
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how to emulate “insert ignore” m>and m> “on duplicate kem>y m> update” (sql merge) with postgresql?
...m a subquerm>y m>, m>y m>ou're best of splitting it into two queries, one for INSERT m>and m> one for UPDATE (as an appropriate join/subselect of course - no need to write m>y m>our main filter twice)
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