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What is a lambda expression in C++11?

... be writing a whole class just to do something trivial and one off. In C++03 you might be tempted to write something like the following, to keep the functor local: void func2(std::vector<int>& v) { struct { void operator()(int) { // do something } } f; std::for_each(...
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How do I include related model fields using Django Rest Framework?

... Paolo 14.9k1818 gold badges7575 silver badges108108 bronze badges answered Jan 29 '13 at 11:27 Tom ChristieTom Christie 28.7...
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How to sort the result from string_agg()

... With postgres 9.0+ you can write: select string_agg(product,' | ' order by product) from "tblproducts" Details here. share | improve thi...
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How to include a child object's child object in Entity Framework 5

...rings – Ryan Amies Oct 24 '12 at 14:08 Which version did the lamba method come available? I'm stuck on a EF 4.0 Codeba...
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What is the difference between t.belongs_to and t.references in rails?

... muffinistamuffinista 6,28022 gold badges2626 silver badges2323 bronze badges ...
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Rails: where does the infamous “current_user” come from?

... Erik PetersonErik Peterson 4,08111 gold badge1919 silver badges3232 bronze badges ...
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Parallel.ForEach vs Task.Run and Task.WhenAll

... | edited Sep 30 '13 at 20:33 answered Sep 30 '13 at 20:17 ...
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Which is the preferred way to concatenate a string in Python?

...e is the most common. Here are timings with the timeit module: a = a + b: 0.11338996887207031 a += b: 0.11040496826171875 However, those who recommend having lists and appending to them and then joining those lists, do so because appending a string to a list is presumably very fast compared to ex...
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How do you write a migration to rename an ActiveRecord model and its table in Rails?

... | edited Nov 17 '16 at 7:01 ndnenkov 32.2k99 gold badges6060 silver badges9090 bronze badges answered J...
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Setting focus on an HTML input box on page load

... answered Aug 1 '10 at 19:32 SaikiosSaikios 3,07366 gold badges3232 silver badges5050 bronze badges ...