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Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary?
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4 Answers
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postgresql return 0 if returned value is null
..._id = 1000307
AND ( EXTRACT( DAY FROM ( NOW() - dateEnded ) ) ) * 24 < 48
AND COALESCE( price, 0 ) > ( SELECT AVG( COALESCE( price, 0 ) )* 0.50
FROM ( SELECT *, cume_dist() OVER ( ORDER BY price DESC )
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Master-master vs master-slave database architecture?
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edited Jan 21 at 11:44
Trevor
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How can I verify if a Windows Service is running
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CarlCarl
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How to count the number of set bits in a 32-bit integer?
...33333) + ((i >> 2) & 0x33333333);
return (((i + (i >> 4)) & 0x0F0F0F0F) * 0x01010101) >> 24;
}
For JavaScript: coerce to integer with |0 for performance: change the first line to i = (i|0) - ((i >> 1) & 0x55555555);
This has the best worst-case behaviour of ...
Get type of all variables
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JamesJames
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Is SecureRandom thread safe?
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edited Dec 22 '19 at 16:04
answered Sep 22 '09 at 18:02
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SVG Positioning
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Aaron DigullaAaron Digulla
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What's the difference between Jetty and Netty?
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204
Jetty is a lightweight servlet container, easy to embed within a java application, there is an e...
How to create a hex dump of file containing only the hex characters without spaces in bash?
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254
xxd -p file
Or if you want it all on a single line:
xxd -p file | tr -d '\n'
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