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Why does SIGPIPE exist?

...ite output. Without SIGPIPE, unless these programs explicitly handle write errors and immediately exit (which might not be the desired behavior for all write errors, anyway), they will continue running until they run out of input even if their output pipe has been closed. Sure you can duplicate the ...
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RequestDispatcher.forward() vs HttpServletResponse.sendRedirect()

...e (e.g. validation, business logic, login the user, etc). If there are any errors, then you normally want to forward the request back to the same page and display the errors there next to the input fields and so on. You can use the RequestDispatcher for this. If a POST is successful, you normally wa...
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Install Windows Service created in Visual Studio

... I am getting the same error in VS2013. I checked the links you provided, verified that I have ProjectInstaller, including the components service[Process]Installer1, properly configured. I run installutil.exe as Administrator. It still reports "No ...
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const vs constexpr on variables

...es a compile-time constant. For example: constexpr double PI3 = PI1; // error but: constexpr double PI3 = PI2; // ok and: static_assert(PI1 == 3.141592653589793, ""); // error but: static_assert(PI2 == 3.141592653589793, ""); // ok As to which you should use? Use whichever meets yo...
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How to set timeout for http.Get() requests in Golang?

... What happens when the timeout hits? Does Get return an error? I’m a little confused because the Godoc for Client says: The timer remains running after Get, Head, Post, or Do return and will interrupt reading of the Response.Body. So does that mean that either Get or reading Res...
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How can I add timestamp to logs using Node.js library Winston?

... TypeError: (intermediate value) is not a function – Urasquirrel Jul 24 '19 at 19:37 add a comment ...
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JavaScript style for optional callbacks

...} }; I've got hundred of functions doing things like cb(callback, { error : null }, [0, 3, 5], true); or whatever... I'm skeptical of the whole "make sure it's function" strategy. The only legitimate values are a function or falsy. If someone passes in a non-zero number or a non-empty st...
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How can I determine if a variable is 'undefined' or 'null'?

... I'm trying to test if event is null in firefox and an error blocks the execution: "event is undefined" – Entretoize Sep 6 '18 at 10:32 ...
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'Incomplete final line' warning when trying to read a .csv file into R

... @JorisMeys The error message, however, refers to the last line of the file. Taking the steps above does indeed remove the warning. – WorldGov Apr 30 at 16:36 ...
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How do I find where an exception was thrown in C++?

...location of the exception. Note: I say may because C++ supports non-local error handling through the use of language constructs to separate error handling and reporting code from ordinary code. The catch block can be, and often is, located in a different function/method than the point of throwing....