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Empty set literal?

... Why?! Performance is almost identical: $ python3.7 -m timeit 'set()' 2000000 loops, best of 5: 177 nsec per loop $ python3.7 -m timeit '{*()}' 2000000 loops, best of 5: 171 nsec per loop – ogurets ...
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Does ruby have real multithreading?

... Updated with Jörg's Sept 2011 comment You seem to be confusing two very different things here: the Ruby Programming Language and the specific threading model of one specific implementation of the Ruby Programming Language. There are currently arou...
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C++ Returning reference to local variable

...rimitive values because just about every compiler nowadays implements some form of return value optimization: class big_object { public: big_object(/* constructor arguments */); ~big_object(); big_object(const big_object& rhs); big_object& operator=(const big_object& r...
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Contains method for a slice

... In its current form this code offers no benefit, since there is no point in constructing a map from a slice if you are only going to use it once. — To be useful, this code should rather provide a function sliceToMap that does all the prep...
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How do I convert a double into a string in C++?

...any of the conversion routines are implemented inline. According to the performance measurements on the bottom of this page (boost.org/doc/libs/1_47_0/libs/conversion/lexical_cast.htm), boost::lexical_cast is faster than using stringstreams and, in most cases, faster than scanf/printf ...
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ASP.NET MVC Yes/No Radio Buttons with Strongly Bound Model MVC

... clicks on Label to toggle radio button Least possible code to maintain in form (1 line). If something is wrong with the way it is rending, take it up with the template. share | improve this answer...
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Why do we use volatile keyword? [duplicate]

... alien outside this planet called program. Maybe some lightning, some form of interrupt, volcanoes, etc can mutate me. Maybe. You never know who is going to change me! So O you ignorant, stop playing an all-knowing god, and don't dare touch the code where I'm present. Okay?" Well, t...
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Is it possible to embed animated GIFs in PDFs?

... Open the GIF in Quicktime and save as MOV (Apparently it works with other formats too, you'll have to try it out). Insert the MOV into the PDF (with Adobe InDesign (make sure to set Object> Interactive> film options > Embed in PDF) - It should work with Adobe Acrobat Pro DC too: see link ...
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Prevent double curly brace notation from displaying momentarily before angular.js compiles/interpola

...te from being briefly displayed by the browser in its raw (uncompiled) form while your application is loading. Use this directive to avoid the undesirable flicker effect caused by the html template display. The directive can be applied to the <body> element, but the preferred usage ...
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Stop all active ajax requests in jQuery

I have a problem, when submitting a form all active ajax request fail, and that triggers error event. 16 Answers ...