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Creating a UICollectionView programmatically

...wDataSource,UICollectionViewDelegateFlowLayout> { UICollectionView *_collectionView; } Implementation File:-- - (void)viewDidLoad { [super viewDidLoad]; self.view = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; UICollectionViewFlowLayout *layout=[[UICollect...
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Suppressing “warning CS4014: Because this call is not awaited, execution of the current method conti

This is not a duplicate of "How to safely call an async method in C# without await" . 8 Answers ...
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SQL Server Regular expressions in T-SQL

...FUNCTION RegexContain(@text NVARCHAR(50), @pattern NVARCHAR(50)) RETURNS smallint AS EXTERNAL NAME CLR_Functions.[CLR_Functions.myFunctions].RegexContain Then you should have complete access to the function via the database you stored the assembly in. Then use in queries like so: SELECT * FR...
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How can I get the current network interface throughput statistics on Linux/UNIX? [closed]

...$dev/statistics"; my %stats = do { opendir +(my $dh), $dir; local @_ = readdir $dh; closedir $dh; map +($_, []), grep !/^\.\.?$/, @_; }; if (-t STDOUT) { while (1) { print "\033[H\033[J", run(); my ($time, $us) = gettimeofday(); my ($sec, $min, $hour) = l...
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Why does “pip install” inside Python raise a SyntaxError?

...stalled package so this is the right way of using the API: subprocess.check_call([sys.executable, '-m', 'pip', 'install', 'SomeProject']) but since Python allows to access internal API and you know what you're using the API for you may want to use internal API anyway eg. if you're building own GUI p...
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How to write URLs in Latex? [closed]

... Is there a way to escape special characters like & or _ automatically, when its part of the url? Those characters are often getting used in URLs as separator for dynamic values. – gies0r Mar 12 '19 at 23:56 ...
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Performance of Arrays vs. Lists

... Very easy to measure... In a small number of tight-loop processing code where I know the length is fixed I use arrays for that extra tiny bit of micro-optimisation; arrays can be marginally faster if you use the indexer / for form - but IIRC believe it dep...
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How do you test functions and closures for equality?

...s Lattner wrote on the developer forums: This is a feature we intentionally do not want to support. There are a variety of things that will cause pointer equality of functions (in the swift type system sense, which includes several kinds of closures) to fail or change depending on optimiz...
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How to concatenate strings in django templates?

... I was totally confused by this answer as it uses the include tag instead of the extend tag, but apparently it just works. Though I would recommend Ahsan's own answer as it also workes and is (in my opinion) semantically more correct a...
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Event handling for iOS - how hitTest:withEvent: and pointInside:withEvent: are related?

...lementation of hitTest:withEvent: in UIResponder does the following: It calls pointInside:withEvent: of self If the return is NO, hitTest:withEvent: returns nil. the end of the story. If the return is YES, it sends hitTest:withEvent: messages to its subviews. it starts from the top-level subview, ...