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E731 do not assign a lambda expression, use a def

... Yes: def f(x): return 2*x No: f = lambda x: 2*x The first form means that the name of the resulting function object is specifically 'f' instead of the generic '<lambda>'. This is more useful for tracebacks and string representations in general. The use of the assignment ...
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C++11 rvalues and move semantics confusion (return statement)

... your first. The std::move on tmp is unnecessary and can actually be a performance pessimization as it will inhibit return value optimization. The best way to code what you're doing is: Best practice std::vector<int> return_vector(void) { std::vector<int> tmp {1,2,3,4,5}; return...
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What's the idiomatic syntax for prepending to a short python list?

...ation for the missing list.prepend() . Assuming my list is short and performance concerns are negligible, is 4 Answers ...
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How do browsers pause/change Javascript when tab or window is not active?

...mationFrame to run in different browsers, and gives you the results in the form of a distribution. You can change the number of milliseconds for setInterval to see how it runs under different settings. setTimeout works similarly to a setInterval with respect to delays. requestAnimationFrame generall...
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What Xcode keyboard shortcuts do you use regularly? [closed]

... 4 – quantumpotato Mar 15 '11 at 18:01 1 ...
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Read stream twice

... alain.janinmalain.janinm 18.8k1010 gold badges5454 silver badges102102 bronze badges ...
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What's the role of GetHashCode in the IEqualityComparer in .NET?

...nteger representation of the object. Since there is no limit to how much information an object can contain, certain hash codes are shared by multiple objects - so the hash code is not necessarily unique. A dictionary is a really cool data structure that trades a higher memory footprint in return f...
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What is Autoloading; How do you use spl_autoload, __autoload and spl_autoload_register?

...plied by the answer, but not explicitly stated. To me, this is critical information that would be perfect for inclusion in your answer! :) – rinogo Feb 27 '15 at 5:57 ...
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Generic type parameter naming convention for Java (with multiple chars)?

...ionally followed by a single numeral (such as E, T, X, T2) A name in the form used for classes (see Section 5.2.2, Class names), followed by the capital letter T (examples: RequestT, FooBarT). Issues “Without this convention, it would be difficult to tell the difference between a type v...
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Comparing two java.util.Dates to see if they are in the same day

... Binil ThomasBinil Thomas 13.1k1010 gold badges5353 silver badges6868 bronze badges ...