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How to validate an email address using a regular expression?

...sistent with the RFC 5322 grammar and passes several tests using grep -Po, including cases domain names, IP addresses, bad ones, and account names with and without quotes. Correcting the 00 bug in the IP pattern, we obtain a working and fairly fast regex. (Scrape the rendered version, not the mark...
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How can I add an item to a SelectList in ASP.net MVC

...sseWebb I suspect you just need to make sure you're using a signature that includes the option label, msdn.microsoft.com/en-us/library/ee703567.aspx, @Html.DropDownListFor( m => m.MenuSelection, (IEnumerable<SelectListItem>)ViewBag.Menu, "Select One", null ) for example, including the nul...
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Is the sizeof(some pointer) always equal to four?

...arantee you get is that sizeof(char) == 1. There are no other guarantees, including no guarantee that sizeof(int *) == sizeof(double *). In practice, pointers will be size 2 on a 16-bit system (if you can find one), 4 on a 32-bit system, and 8 on a 64-bit system, but there's nothing to be gained i...
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Using an RDBMS as event sourcing storage

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setuptools vs. distutils: why is distutils still a thing?

... history of tools that can be used to package and describe projects: these include distutils in the Standard Library, distribute , distutils2 , and setuptools (and maybe more). It appears that distribute and distutils2 were discontinued in favor of setuptools , which leaves two competing ...
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Printing 1 to 1000 without loop or conditionals

... Compile time recursion! :P #include <iostream> template<int N> struct NumberGeneration{ static void out(std::ostream& os) { NumberGeneration<N-1>::out(os); os << N << std::endl; } }; template<> struc...
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How to write a scalable Tcp/Ip based server

...ass you see referenced above is basically a simple wrapper for a socket to include the byte buffer, and in my implementation some extras. public class xConnection : xBase { public byte[] buffer; public System.Net.Sockets.Socket socket; } Also for reference here are the usings I include since...
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Targeting both 32bit and 64bit with Visual Studio in same solution/project

...an assembly, your project file will contain something like: <Reference Include="Filename, ..., processorArchitecture=x86"> <HintPath>C:\path\to\x86\DLL</HintPath> </Reference> Wrap that Reference tag inside an ItemGroup tag indicating the solution configuration it applie...
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How to set breakpoints in inline Javascript in Google Chrome?

... For some reason I see the list of included js files, but I cannot choose the executing page itself, it doesn't show in the list. Any ideas? – ulu Jun 26 '11 at 11:41 ...
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get keys of json-object in JavaScript [duplicate]

... keys (property names) in an object. All modern browsers have Object.keys (including IE9+). Object.keys(jsonData).forEach(function(key) { var value = jsonData[key]; // ... }); The rest of this answer was written in 2011. In today's world, A) You don't need to polyfill this unless you ne...