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What is the Ruby (spaceship) operator?
...eans equality.
– superluminary
Nov 28 '13 at 11:35
1
@superluminary Unlike C's strcmp function, x...
Check if a string contains a number
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answered Nov 8 '13 at 12:38
thefourtheyethefourtheye
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What is the recommended batch size for SqlBulkCopy?
...6 million rows takes about 30 seconds with a batch size of 5,000 and about 80 seconds with batch size of 500.
10,000 was not measurably faster. Moving up to 50,000 improved the speed by a few percentage points but it's not worth the increased load on the server. Above 50,000 showed no improvements...
Haskell: Where vs. Let
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antonakosantonakos
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Import error: No module name urllib2
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edited Aug 28 '19 at 22:47
answered May 8 '10 at 2:00
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What is the fastest or most elegant way to compute a set difference using Javascript arrays?
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178
if don't know if this is most effective, but perhaps the shortest
A = [1, 2, 3, 4];
B = [1, 3, ...
Android DialogFragment vs Dialog
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84
Yes, use DialogFragment and in onCreateDialog you can simply use an AlertDialog builder anyway ...
Reduce, fold or scan (Left/Right)?
...4 // de-cumulates value -1 in *first* operator arg `res`
// op: -4 - 4 = -8
// res: Int = -8
xs.foldLeft(0)(minus)
// op: 0 - 1 = -1
// op: -1 - 2 = -3
// op: -3 - 3 = -6
// op: -6 - 4 = -10
// res: Int = -10
xs.scanLeft(0)(minus)
// op: 0 - 1 = -1
// op: -1 - 2 = -3
// op: -3 - 3 = -6
// op: -6 ...
What is the optimal length for user password salt? [closed]
...t purposes, it will in the worst case speed an attacker's search by about 58%. The cost of increasing salts beyond 64 bits isn't high but there is no security reason to do so.
There is some benefit to also using a site-wide salt on top of the per-user salt, this will prevent possible collisions wit...