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One DbContext per web request… why?

...g how to set up Entity Framework's DbContext so that only one is created and used per HTTP web request using various DI frameworks. ...
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Why is SCTP not much used/known

...cked out the book "UNIX Network Programming, Vol. 1" by Richards Stevens and I found that there is a third transport layer standard besides TCP and UDP: SCTP . ...
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How to split/partition a dataset into training and test datasets for, e.g., cross validation?

What is a good way to split a NumPy array randomly into training and testing/validation dataset? Something similar to the cvpartition or crossvalind functions in Matlab. ...
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How do I run a Python program in the Command Prompt in Windows 7?

I'm trying to figure out how to run Python programs with the Command Prompt on Windows 7. (I should have figured this out by now...) ...
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Why is there an “Authorization Code” flow in OAuth2 when “Implicit” flow works so well?

...n-HTTPS redirect URI because not all developers have an SSL enabled server and if they do it's not always properly configured (non-self signed, trusted SSL certificates, synchronised server clock...). You don't want hackers to be able to steal access/refresh tokens by intercepting requests. Detail...
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What's the shebang/hashbang (#!) in Facebook and new Twitter URLs for?

... works. Not to mention you often get "1.5 URLs" (i.e. the old URL remains, and just has the new part added to it (i.e. photo.php?id=... twice, but with different ids). Not to mention that "#!" is also added to facebook-mail URLs, which probably aren't (and shouldn't be) indexable. In any case I find...
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What's the difference between an element and a node in XML?

I'm working in Java with XML and I'm wondering; what's the difference between an element and a node? 13 Answers ...
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How to implement classic sorting algorithms in modern C++?

The std::sort algorithm (and its cousins std::partial_sort and std::nth_element ) from the C++ Standard Library is in most implementations a complicated and hybrid amalgamation of more elementary sorting algorithms , such as selection sort, insertion sort, quick sort, merge sort, or heap sort....
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What exactly are DLL files, and how do they work?

...are so much like an EXE that the file format itself is the same. Both EXE and DLLs are based on the Portable Executable (PE) file format. DLLs can also contain COM components and .NET libraries. What does a DLL contain? A DLL contains functions, classes, variables, UIs and resources (such as ico...
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Use of *args and **kwargs [duplicate]

So I have difficulty with the concept of *args and **kwargs . 11 Answers 11 ...