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Why can't I use a list as a dict key in python?

...std. dev. of 7 runs, 10000000 loops each) As you can see, the membership test in our stupidlists_set is even slower than a linear scan over the whole lists_list, while you have the expected super fast lookup time (factor 500) in a set without loads of hash collisions. TL; DR: you can use tuple(...
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How is TeamViewer so fast?

...but there appear to be no one else online in the other rooms. I'll have to test with another computer later. Many thanks! – Jason Dec 8 '12 at 23:19 add a comment ...
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Override intranet compatibility mode IE8

...IE=9,10" ></meta> Notice: give a list of browser modes you have tested for. The blog post also advices against the use of EmulateIEX. Here a quote: That being said, one thing I do find strange is when an application requests EmulateIE7, or EmulateIE8. These emulate modes are themse...
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What is the purpose of “!” and “?” at the end of method names?

...throw. Instead you must clone it before doing the concat. Fortunately my test suite caught this one, but.. heads up! share | improve this answer | follow | ...
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jQuery map vs. each

... @Hemant Just tested the fiddle in Chrome and it seems to work fine. There are three alert dialogs ('lions!', 'tigers!', 'bears!') and at the end result === ['lions', 'tigers', 'bears'] – Patrick McElhaney ...
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How can I debug git/git-shell related problems?

...ee that new option used in this answer, but also in the Git 2.11 (Q4 2016) tests: See commit 14e2411, commit 81590bf, commit 4527aa1, commit 4eee6c6 (07 Sep 2016) by Elia Pinto (devzero2000). (Merged by Junio C Hamano -- gitster -- in commit 930b67e, 12 Sep 2016) Use the new GIT_TRACE_CURL en...
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Does pandas iterrows have performance issues?

... table3 = pd.DataFrame(ret, columns=('letter', 'number2')) Benchmark test: -- iterrows() -- 100 loops, best of 3: 12.7 ms per loop letter number2 0 a 0.5 1 b 0.1 2 c 5.0 3 d 4.0 -- itertuple() -- 100 loops, best of 3: 12.3 ms per loop -- to_records...
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How to make graphics with transparent background in R using ggplot2?

... fill = "transparent" # for the inside of the boxplot ) Fastest way is using using rect, as all the rectangle elements inherit from rect: p <- p + theme( rect = element_rect(fill = "transparent") # all rectangles ) p More controlled way is to use options of ...
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CSS customized scroll bar in div

... I thought it would be helpful to consolidate the latest information on scroll bars, CSS, and browser compatibility. Scroll Bar CSS Support Currently, there exists no cross-browser scroll bar CSS styling definitions. The W3C article I mention at the end has the following st...
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Passing a std::array of unknown size to a function

...r ) { mulArrayImpl( contig_range<int>(arr), multiplier ); } (not tested, but design should work). Then, in your .cpp file: void mulArrayImpl(contig_range<int> rng, const int multiplier) { for(auto& e : rng) { e *= multiplier; } } This has the downside that the code th...