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Group by with multiple columns using lambda

... var query = source.GroupBy(x => new { x.Column1, x.Column2 }); share | improve this answer | follow | ...
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Accessing the logged-in user in a template

... | edited Sep 19 '11 at 12:57 answered Sep 19 '11 at 11:24 ...
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Adding a user to a group in django

... | edited Dec 4 '17 at 9:04 answered Jun 9 '11 at 6:24 ...
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How is set() implemented?

I've seen people say that set objects in python have O(1) membership-checking. How are they implemented internally to allow this? What sort of data structure does it use? What other implications does that implementation have? ...
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What is the ideal data type to use when storing latitude / longitude in a MySQL database?

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git add . vs git commit -a

... 140 git commit -a means almost[*] the same thing as git add -u && git commit. It's not th...
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What are some uses of decltype(auto)?

In c++14 the decltype(auto) idiom is introduced. 2 Answers 2 ...
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SET versus SELECT when assigning variables?

... 417 Quote, which summarizes from this article: SET is the ANSI standard for variable assignm...
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Scatter plot and Color mapping in Python

... and y stored in numpy arrays. Those represent x(t) and y(t) where t=0...T-1 3 Answers ...
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json_encode sparse PHP array as JSON array, not JSON object

... 197 You are observing this behaviour because your array is not sequential - it has keys 0 and 2, b...