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What is the 'dynamic' type in C# 4.0 used for?

...= foo / 2.5; // Does not compile foo = Math.Sqrt(foo); // Does not compile string bar = foo.ToString("c"); The second line does not compile because 2.5 is typed as a double and line 3 does not compile because Math.Sqrt expects a double. Obviously, all you have to do is cast and/or change your vari...
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Best Practices: Salting & peppering passwords?

...sult in a far weaker hash than bcrypt(pw, salt) if hash() returns a binary string. Working Against Design The way bcrypt (and other password hashing algorithms) were designed is to work with a salt. The concept of a pepper was never introduced. This may seem like a triviality, but it's not. The rea...
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Abstraction VS Information Hiding VS Encapsulation

...= the object internally, Example: In the .NET Framework, the System.Text.StringBuilder class provides an abstraction over a string buffer. This buffer abstraction lets you work with the buffer without regard for its implementation. Thus, you're able to append strings to the buffer without regard f...
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Using Case/Switch and GetType to determine the object [duplicate]

... If I really had to switch on type of object, I'd use .ToString(). However, I would avoid it at all costs: IDictionary<Type, int> will do much better, visitor might be an overkill but otherwise it is still a perfectly fine solution. ...
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Is null reference possible?

...red_ptr<Error>> _instances; static Error& NewInstance(const string& name, bool isNull = false); private: bool _isNull; Error(const string& name, bool isNull = false) : _name(name), _isNull(isNull) {}; Error() {}; Error(const Error& src) {}; Error& operator=(...
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How to stop a PowerShell script on the first error?

...andatory=1)][scriptblock]$cmd, [Parameter(Position=1,Mandatory=0)][string]$errorMessage = ("Error executing command {0}" -f $cmd) ) & $cmd if ($lastexitcode -ne 0) { throw ("Exec: " + $errorMessage) } } Try { # Put all your stuff inside here! # powershe...
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Get the current git hash in a Python script

... Add a .decode('ascii').strip() to decode the binary string (and remove the line break). – pfm Nov 9 '18 at 9:14  |  sho...
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How do I copy the contents of one stream to another?

...le.Open(Server.MapPath("TextFile.txt"), FileMode.Open); Response.Write(string.Format("FileStream Content length: {0}", objFileStream.Length.ToString())); MemoryStream objMemoryStream = new MemoryStream(); // Copy File Stream to Memory Stream using CopyTo method objFileStream.CopyTo...
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inline conditionals in angular.js

... way to escape "<" and ">" so that tags can be output as part of the string? – user1469779 Jan 9 '13 at 21:16 ...
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Setting Access-Control-Allow-Origin in ASP.Net MVC - simplest possible method

... var origin = ctx.Request.Headers["Origin"]; var allowOrigin = !string.IsNullOrWhiteSpace(origin) ? origin : "*"; ctx.Response.AddHeader("Access-Control-Allow-Origin", allowOrigin); ctx.Response.AddHeader("Access-Control-Allow-Headers", "*"); ctx.Response.AddHeader...