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In Clojure, when should I use a vector over a list, and the other way around?

... Vectors have O(1) random access times, but they have to be preallocated. Lists can be dynamically extended, but accessing a random element is O(n). share | improve this answer ...
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Generic List - moving an item within the list

... should remove before inserting ... your order may cause the list to do an allocation. – Jim Balter Nov 6 '18 at 15:47 ...
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Does java.util.List.isEmpty() check if the list itself is null? [duplicate]

...I deleted my stupid comment, before I saw your answer. Maybe he comes from PHP where we have !empty($foo) as somewhat an alias for isset($foo) && $foo != "". – Aufziehvogel Jul 16 '12 at 20:39 ...
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Functional programming - is immutability expensive? [closed]

...his algorithm has a very poor cache locality. I don’t know whether smart allocators in modern functional programming languages can mitigate this – but on modern machines, cache misses have become a major performance killer. What’s the conclusion? Unlike others, I wouldn’t say that quickso...
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C++ mark as deprecated

...d]] attribute (see section 7.6.5 [dcl.attr.deprecated]). The attribute-token deprecated can be used to mark names and entities whose use is still allowed, but is discouraged for some reason. For example, the following function foo is deprecated: [[deprecated]] void foo(int); It is possible ...
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Why NSUserDefaults failed to save NSMutableDictionary in iOS?

... When do I need to release the loaded object? No alloc was called, so I would assume it is autorelased? – Marc Apr 16 '12 at 13:08 7 ...
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How to calculate the bounding box for a given lat/lng location?

... Here is a PHP implementation from the specification found at JanMatuschek.de: github.com/anthonymartin/GeoLocation.class.php – Anthony Martin Dec 3 '12 at 14:10 ...
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How to develop or migrate apps for iPhone 5 screen resolution?

...height == 568) { UIViewController *viewController3 = [[[mainscreenview alloc] initWithNibName:@"iphone5screen" bundle:nil] autorelease]; } else { UIViewController *viewController3 = [[[mainscreenview alloc] initWithNibName:@"iphone4screen" bundle:nil] autorelease]; } ...
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.rar, .zip files MIME Type

I'm developing a simple php upload script, and users can upload only ZIP and RAR files. 6 Answers ...
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Prevent RequireJS from Caching Required Scripts

...r from build agent --> <replace file="${website.dir}/js/main.js" token="@Revision@" value="${buildNumber}" /> </target> Where the beginning of main.js looks like: require.config({ baseUrl: '/js', urlArgs: 'bust=@Revision@', ... }); ...