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What are “first class” objects?

...ion<int> a, int n) { return a(n); } // Now call g and pass f: g(f, 10); // = 20 This is an example in C# where functions actually aren't first-class objects. The above code therefore uses a small workaround (namely a generic delegate called Action<>) to pass a function as an argument...
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what does the __file__ variable mean/do?

...xamples return name '__file__' is not defined. – user1063287 Nov 25 '14 at 22:51 10 @user1063287 ...
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What does “mro()” do?

... answered Jan 6 '10 at 3:17 Alex MartelliAlex Martelli 724k148148 gold badges11261126 silver badges13241324 bronze badges ...
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How to implement __iter__(self) for a container object (Python)

... answered Oct 26 '10 at 1:04 mikerobimikerobi 18.2k55 gold badges4242 silver badges4242 bronze badges ...
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How do I override __getattr__ in Python without breaking the default behavior?

... answered Mar 8 '10 at 23:35 Michael WilliamsonMichael Williamson 10.5k44 gold badges3232 silver badges3232 bronze badges ...
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__getattr__ on a module

... | edited Dec 10 '18 at 21:37 answered Feb 21 '18 at 21:58 ...
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NSLog the method name with Objective-C in iPhone

... answered May 5 '10 at 2:46 drawnonwarddrawnonward 51.7k1515 gold badges102102 silver badges109109 bronze badges ...
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Embedding Python in an iPhone app

... answered Sep 11 '10 at 16:23 bbumbbum 160k2323 gold badges262262 silver badges353353 bronze badges ...
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How can I make Bootstrap columns all the same height?

... 1065 Solution 4 using Bootstrap 4 Bootstrap 4 uses Flexbox so there is no need for extra CSS. D...
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Checking if an instance's class implements an interface?

... 104 As therefromhere points out, you can use class_implements(). Just as with Reflection, this all...