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Captured variable in a loop in C#

...ompiler is generating a class that represents the closure for your method call. It uses that single instance of the closure class for each iteration of the loop. The code looks something like this, which makes it easier to see why the bug happens: void Main() { List<Func<int>> actio...
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PHP Session Fixation / Hijacking

...cker explicitly sets the session identifier of a session for a user. Typically in PHP it's done by giving them a url like http://www.example.com/index...?session_name=sessionid. Once the attacker gives the url to the client, the attack is the same as a session hijacking attack. There are a few way...
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What is the 'new' keyword in JavaScript?

...n's external, accessible, prototype object (every function object automatically has a prototype property). It makes the this variable point to the newly created object. It executes the constructor function, using the newly created object whenever this is mentioned. It returns the newly created objec...
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bash: pip: command not found

I downloaded pip and ran python setup.py install and everything worked just fine. The very next step in the tutorial is to run pip install <lib you want> but before it even tries to find anything online I get an error "bash: pip: command not found". ...
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Forward declaring an enum in C++

...can't know the storage required for the enum variable. C++ Compiler's are allowed to specify the actual storage space based on the size necessary to contain all the values specified. If all that is visible is the forward declaration, the translation unit can't know what storage size will have been...
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SQL Server Regular expressions in T-SQL

...FUNCTION RegexContain(@text NVARCHAR(50), @pattern NVARCHAR(50)) RETURNS smallint AS EXTERNAL NAME CLR_Functions.[CLR_Functions.myFunctions].RegexContain Then you should have complete access to the function via the database you stored the assembly in. Then use in queries like so: SELECT * FR...
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How to call Stored Procedure in Entity Framework 6 (Code-First)?

... You can call a stored procedure in your DbContext class as follows. this.Database.SqlQuery<YourEntityType>("storedProcedureName",params); But if your stored procedure returns multiple result sets as your sample code, then you...
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Animate change of view controllers without using navigation controller stack, subviews or modal cont

...ontroller.view.anotherView). I've implemented a simple container class I called TransitionController. You can find it at https://gist.github.com/1394947. As an aside, I prefer the implementation in a separate class b/c it's easier to reuse. If you don't want that, you could simply implement the sa...
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中文网(自研/维护)拓展 · App Inventor 2 中文网

...nt Initialize(verticalArrangement) Method for Initialize Initialize_Scroll(verticalScrollArrangement) Method for Initialize_Scroll RemoveElement(elementIndex) Method for RemoveElement Set(list) Method for Set SetElement(elementIndex,element) Method for SetElement SetEleme...
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How to get the sizes of the tables of a MySQL database?

I can run this query to get the sizes of all tables in a MySQL database: 16 Answers 16...