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Understanding dispatch_async

... 521 The main reason you use the default queue over the main queue is to run tasks in the background...
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Do I need to manually close an ifstream?

...veryday – TStamper Apr 14 '09 at 15:21 23 Using a nested scope just to close the file is complete...
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Return 0 if field is null in MySQL

... i was looking for – brunobliss Dec 21 '16 at 13:22 @MarkByers IFNOtNULL(expr1, 1) is there anything like that ...
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How does IPython's magic %paste work?

... 21 As of Ipython 5 you don't need any magic command, just paste it Thanks to prompt_toolkit,...
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Is it a good idea to index datetime field in mysql?

...ion.. Am i right? – user3595632 Aug 21 '18 at 4:12 1 How about if querying datetime fields with t...
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Turning off some legends in a ggplot

... fc9.30fc9.30 1,2151111 silver badges1616 bronze badges add a comment ...
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What is the most efficient way to store tags in a database?

... Valentin VasilyevValentin Vasilyev 21.8k2727 gold badges9393 silver badges140140 bronze badges a...
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Hex representation of a color with alpha channel?

... Patrick Klug 12.7k1212 gold badges6868 silver badges112112 bronze badges answered Sep 14 '09 at 2:36 Kelly GendronKelly ...
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How can I check if a key is pressed during the click event with jQuery?

... cletuscletus 562k152152 gold badges873873 silver badges927927 bronze badges ...
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Rails: Check output of path helper from console

...path. – Jordan Brough Jul 15 '14 at 21:20 ...