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How do short URLs services work?

...question). They read the path part (here duSk8wK), which maps to their database. In the database, they find a description (sometimes), your name (sometimes) and the real URL. Then they issue a redirect, which is a HTTP 302 response and the target URL in the header. This direct redirect is important...
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How to check if variable is string with python 2 and 3 compatibility

... in python-2.x? Or will I need to check the version and use isinstance(x, basestr) ? 10 Answers ...
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What are the dangers when creating a thread with a stack size of 50x the default?

...date 1), using an i7 4700 MQ, under .NET 4.5.1 I tested both with x86 and x64 and the results are identical. Edit: I increased the stack size of all threads 201 MB, the sample size to 50 million and decreased iterations to 5. The results are the same as above: Stack-allocated array time: 00:00...
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What does string::npos mean in this code?

...can not be negative... real meaning is max_index, 18446744073709551615 for 64 bit size_t – NoSenseEtAl Sep 4 '14 at 12:33 add a comment  |  ...
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Unmangling the result of std::type_info::name

... } #endif Usage: #include <iostream> #include "type.hpp" struct Base { virtual ~Base() {} }; struct Derived : public Base { }; int main() { Base* ptr_base = new Derived(); // Please use smart pointers in YOUR code! std::cout << "Type of ptr_base: " << type(ptr_base...
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Can CSS detect the number of children an element has?

... misleading. Note that, in CSS3, styles cannot be applied to a parent node based on the number of children it has. However, styles can be applied to the children nodes based on the number of siblings they have. Original answer: Incredibly, this is now possible purely in CSS3. /* one item */ li:...
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Minimum and maximum value of z-index?

I have a div in my HTML page. I am showing this div based on some condition, but the div is displaying behind the HTML element where I pointed the mouse cursor. ...
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Hidden features of WPF and XAML?

...Aero, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35, ProcessorArchitecture=MSIL;component/themes/aero.normalcolor.xaml" /> </Window.Resources> share ...
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How to print Boolean flag in NSLog?

...ol value: %d",b); or NSLog(@"bool %s", b ? "true" : "false"); On the bases of data type %@ changes as follows For Strings you use %@ For int you use %i For float and double you use %f share | ...
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How to extract the year from a Python datetime object?

...ey thing to note is that the time components can differ between 32-bit and 64-bit pythons in some python versions (2.5.x tree I think). So you will find things like hour/min/sec on some 64-bit platforms, while you get hour/minute/second on 32-bit. ...