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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...
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use Winmerge inside of Git to file diff

...git config --replace --global difftool.prompt false Step 3 - Now you can test by typing the following command in Git Bash to start your WinMerge diff: git difftool --dir-diff Step 4 - For quicker access, create an alias for this command by adding this line to .bashrc in your home folder (or cre...
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ElasticSearch - Return Unique Values

...h with high-cardinality datasets, but it's generally pretty accurate in my testing. You can also tune the accuracy with the precision_threshold parameter. The trade-off, or course, is memory usage. This graph from the docs shows how a higher precision_threshold leads to much more accurate results....
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Compare object instances for equality by their attributes

... among a diverse set of already trained Machine Learning models inside BDD tests. The models belonged to a diverse set of third-party libs. Certainly implementing __eq__ like other answers here suggest wasn't an option for me. Covering all the bases You may be in a scenario where one or more of the ...