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Import error: No module name urllib2

... Some tab completions to show the contents of the packages in Python 2 vs Python 3. In Python 2: In [1]: import urllib In [2]: urllib. urllib.ContentTooShortError urllib.ftpwrapper urllib.socket urllib.test1 urllib.FancyURLopener urllib.getpro...
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Convert string to variable name in JavaScript

... As far as eval vs. global variable solutions... I think there are advantages to each but this is really a false dichotomy. If you are paranoid of the global namespace just create a temporary namespace & use the same technique. var tem...
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Is MATLAB OOP slow or am I doing something wrong?

...t. The MATLAB engine's OO internals aren't public. It's not an interpreted vs compiled issue per se - MATLAB has a JIT - but MATLAB's looser typing and syntax may mean more work at run time. (E.g. you can't tell from syntax alone whether "f(x)" is a function call or an index into an array; it depend...
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PHP - Check if two arrays are equal

... ?> That is because the above means: array(0 => "x", 1 => "y") vs. array(0 => "y", 1 => "x"). To solve that issue, use: <?php function array_equal($a, $b) { return ( is_array($a) && is_array($b) && count($a) == count($b) ...
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List of installed gems?

...version on a separate line. For e.g.: sass (3.3.14, 3.3.7, 3.3.6, 3.2.19) vs. sass-3.3.14, sass-3.3.7, sass-3.3.6, sass-3.2.19 – kaiser Sep 8 '14 at 10:30 ...
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How can I set multiple CSS styles in JavaScript?

...uence as opposed to using the cssText method is faster: jsperf.com/csstext-vs-multiple-css-rules/4 – Andrei Oniga Mar 13 '12 at 7:25 2 ...
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Padding or margin value in pixels as integer using jQuery

...rseInt is faster than replace('px','') by 49% on chrome jsperf.com/replace-vs-parseint – Bank Nov 15 '11 at 8:07 17 ...
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How to construct a std::string from a std::vector?

... Except in VS2013 which asserts at runtime about invalid iterators, unless you set _ITERATOR_DEBUG_LEVEL=1 (in which case it seems to work fine). – Cameron Sep 23 '14 at 22:39 ...
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What Every Programmer Should Know About Memory?

...h with a single thread. That link has some very good info about NT stores vs. normal stores on x86. Why is Skylake so much better than Broadwell-E for single-threaded memory throughput? is a summary. Thus Ulrich's suggestion in 6.5.8 Utilizing All Bandwidth about using remote memory on other NUMA...
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How to remove all the occurrences of a char in c++ string

...tr.end()); } } } return newStr; } Input vs Output: Input:ra,..pha Output:rapha Input:ovo, Output:ovo Input:a.vo Output:avo Input:oi? Output:oi share | improve...