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How to play a local video with Swift?

... }) } } private func startLoading(){ var error:NSError? guard let asset = urlAsset else {return} let status:AVKeyValueStatus = asset.statusOfValueForKey("tracks", error: &error) if status == AVKeyValueStatus.Loaded { assetDur...
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How can I troubleshoot my Perl CGI script?

...CGI.pm and its derivatives, print header(). Some servers are sensitive to error output (on STDERR) showing up before standard output (on STDOUT). Try sending errors to the browser Add this line use CGI::Carp 'fatalsToBrowser'; to your script. This also sends compilation errors to the browser ...
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SQL select join: is it possible to prefix all columns as 'prefix.*'?

..., the main table's field values are overriden with the joinedtable values. Error prone, frustrating and a violation of DRY when having to manually specify the table fields with aliases over and over... Here is a PHP (Wordpress) function to achieve this through code generation together with an examp...
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Cost of len() function

...s, not C terms]: look up "len" in a dictionary and dispatch it to the built_in len function which will look up the object's __len__ method and call that ... all it has to do is return self.length share | ...
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dispatch_after - GCD in Swift?

...hat my original code was slightly wrong. Implicit typing causes a compile error if you don't cast NSEC_PER_SEC to a Double. If anyone can suggest a more optimal solution I'd be keen to hear it. share | ...
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Why should I prefer to use member initialization lists?

...T be initialized in an initializer list; { // it is an error not to do so } private: A a; const int y; }; share | improve this answer | follo...
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How do I show multiple recaptchas on a single page?

...expired-callback' : jQuery(el).attr('data-expired-callback') ,'error-callback' : jQuery(el).attr('data-error-callback') }); }); }; </script> share | improve this ans...
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How do you create nested dict in Python?

...he following: d = {} # can use defaultdict(dict) instead for row in file_map: # derive row key from something # when using defaultdict, we can skip the next step creating a dictionary on row_key d[row_key] = {} for idx, col in enumerate(row): d[row_key][idx] = col Ac...
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Java: Date from unix timestamp

... This is the right way: Date date = new Date (); date.setTime((long)unix_time*1000); share | improve this answer | follow | ...
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Retrieve list of tasks in a queue in Celery

... Celery. – mlissner May 11 '17 at 5:05 1 I've updated the above to handle prioritized tasks. Prog...