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Keep-alive header clarification
I was asked to build a site , and one of the co-developer told me That I would need to include the keep-alive header.
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Postgres could not connect to server
After I did brew update and brew upgrade, my postgres got some problem. I tried to uninstall postgres and install again, but it didn't work as well.
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Why is conversion from string constant to 'char*' valid in C but invalid in C++
The C++11 Standard (ISO/IEC 14882:2011) says in § C.1.1 :
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Disable cross domain web security in Firefox
...-ons (some of which don't work in the latest Firefox or don't work at all) and "you just need to enable support on the server".
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How to export DataTable to Excel
...er();
wb.Worksheets.Add(dt,"WorksheetName");
The developer is responsive and helpful. The project is actively developed, and the documentation is superb.
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string c_str() vs. data()
I have read several places that the difference between c_str() and data() (in STL and other implementations) is that c_str() is always null terminated while data() is not.
As far as I have seen in actual implementations, they either do the same or data() calls c_str() .
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Disabling and enabling a html input button
... jquery 1.6.1 changes. As a suggestion, always use the latest jquery files and the prop() method.
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Minimizing NExpectation for a custom distribution in Mathematica
...a minimum requires either to set the first derivative of the function zero and solve for a solution. Since your function is quite complicated (and probably not differentiable), the second possibility is to do a numerical minimization, which requires many evaluations of your function. Ergo, it is ver...
Avoid line break between html elements
...veral ways to prevent line breaks in content. Using   is one way, and works fine between words, but using it between an empty element and some text does not have a well-defined effect. The same would apply to the more logical and more accessible approach where you use an image for an icon.
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Why does substring slicing with index out of range work?
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You're correct! 'example'[3:4] and 'example'[3] are fundamentally different, and slicing outside the bounds of a sequence (at least for built-ins) doesn't cause an error.
It might be surprising at first, but it makes sense when you think about it. Indexi...