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Should I use string.isEmpty() or “”.equals(string)?

... A note on performance: isEmpty() checks the internal length of an private array whereas equals(Object anObject) does much more (e.g. checking instanceof). Perfromance-wise, isEmpty() is generally faster. – Turing85 Jul 21 '15 at 8:28 ...
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appearanceWhenContainedIn in Swift

...ce+Swift.h @interface UIView (UIAppearance_Swift) /// @param containers An array of Class<UIAppearanceContainer> + (instancetype)appearanceWhenContainedWithin: (NSArray *)containers; @end UIAppearance+Swift.m @implementation UIView (UIAppearance_Swift) + (instancetype)appearanceWhenContained...
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How to get object length [duplicate]

...uery.map() documentation: Prior to jQuery 1.6, $.map() supports traversing arrays only. As of jQuery 1.6 it also traverses objects. – icramc Dec 28 '12 at 22:46 4 ...
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How can I get the active screen dimensions?

...onitor)!?! Sigh. It looks like I'll have to search the Screen.AllScreens Array myself. Why can't things "just work"?!? Arrrrgh. – Tom Apr 28 '17 at 9:05 ...
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How Big can a Python List Get?

... 0m0.024s sys 0m0.004s But sure as everyone else said. The larger the array the slower the operations will be. share | improve this answer | follow | ...
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Best way to simulate “group by” from bash?

...g counts, but don't help when you need to compute/sum fields values. awk's array syntax is very powerful and key to grouping here. Thanks! – odony Feb 25 '16 at 12:51 1 ...
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Localization and internationalization, what's the difference?

...rance/etc... Translation function works with storage (db/files/associative array/etc). Storage contains keys which is ussed in coode, and values, which is texts in certain language which application supports. Localization - it is process of adding new values in new language (for example spain) appr...
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Commands out of sync; you can't run this command now

...osite for vanilla mysql_query). You can either fetch the first one into an array and loop through that, or tell mysqli to buffer the queries (using $stmt->store_result()). See here for details. share | ...
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Select unique or distinct values from a list in UNIX shell script

...curious as to when you need the [@] suffix to reference all elements of an array - seems that - at least as of version 5 - it works without it; or did you just add it for clarity? – mklement0 Jan 18 '14 at 17:08 ...
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Django TemplateDoesNotExist?

... In my case only step 2 was missing. the DIRS array I could leave that empty and it still worked and looked for the template in the right templates directory of the app. – Shri Shinde Apr 30 at 11:05 ...