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What is the difference between String.Empty and “” (empty string)?

...ich makes string.Empty more efficient. In version 2.0 and later of .NET, all occurrences of "" refer to the same string literal, which means "" is equivalent to .Empty, but still not as fast as .Length == 0. .Length == 0 is the fastest option, but .Empty makes for slightly cleaner code. See the ...
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Get file name from URL

In Java, given a java.net.URL or a String in the form of http://www.example.com/some/path/to/a/file.xml , what is the easiest way to get the file name, minus the extension? So, in this example, I'm looking for something that returns "file" . ...
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What are POD types in C++?

... POD types have characteristics that non-POD types do not. For example, if you have a global, const, POD-type struct, you can initialize its contents with brace notation, it is put into read-only memory, and no code needs to be generated to initialize it (constructor or otherwise), because...
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clang: how to list supported target architectures?

...ump all available triples requires solving the Halting Problem. See, for example, llvm::ARM_MC::ParseARMTriple(...) which special-cases parsing the string "generic". Ultimately, though, the "triple" is mostly a backwards-compatibility feature to make Clang a drop-in replacement for GCC, so you gene...
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Is git's semi-secret empty tree object reliable, and why is there not a symbolic name for it?

...0 +0000" GIT_COMMITTER_DATE="Thu, 01 Jan 1970 00:00:00 +0000" git commit --allow-empty -m 'Initial commit' Will give you: (See the tree SHA1?) You can even rebase your existing history on top of that empty commit (see "git: how to insert a commit as the first, shifting all the others?") In bo...
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Replace spaces with dashes and make all letters lower-case

... Just use the String replace and toLowerCase methods, for example: var str = "Sonic Free Games"; str = str.replace(/\s+/g, '-').toLowerCase(); console.log(str); // "sonic-free-games" Notice the g flag on the RegExp, it will make the replacement globally within the string, if it's n...
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Concept behind these four lines of tricky C code

... The point of this small example is to illustrate what can be done with C++. Magic sample using UB tricks or huge software packages of "classic" code. – SChepurin Aug 1 '13 at 11:30 ...
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Could not reserve enough space for object heap

... Anyone found a solution that actually work 100% of the time? This solution solves the problem temporarily but then suddenly it comes back. I've got 16GB ram and I'm tired of this sh*t. Everything was better in the old days :[ – Nilzor ...
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Read error response body in Java

...ode, even 201, 204, etc. are often used as success statuses. Here is an example of how I went to manage it ... connection code code code ... // Get the response code int statusCode = connection.getResponseCode(); InputStream is = null; if (statusCode >= 200 && statusCode < 400) ...
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How to concatenate columns in a Postgres SELECT?

... PHP's Laravel framework, I am using search first_name, last_name Fields consider like Full Name Search Using || symbol Or concat_ws(), concat() methods $names = str_replace(" ", "", $searchKey); ...