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Scala best way of turning a Collection into a Map-by-key?
...ave it:
val m: Map[P, Collection[T]]
This could be easily achieved with groupBy:
val m: Map[P, Collection[T]] = c.groupBy(t => t.p)
If you still want the original map, you can, for instance, map p to the first t that has it:
val m: Map[P, T] = c.groupBy(t => t.p) map { case (p, ts) =>...
Is there an eval() function in Java? [duplicate]
... This is how I imported it into my build.gradle: testCompile group: 'org.apache.bsf', name: 'bsf-all', version: '3.0-beta3'. Source
– aliteralmind
Oct 8 '15 at 14:30
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Is there a shortcut to move between header and source file in VC++?
...al Studio. They are saved in "macro projects" (which let you save and load groups of macros) but those are unrelated to the usual type of solution/project, as far as I can tell. I have several macros defined in the default macro project which are available before (and after) I open any solution or p...
What Process is using all of my disk IO
... | | | vmcom 8.4G | vmlim 6.0G |
LVM | Group00-root | busy 85% | read 0 | write 30658 | KiB/w 4 | MBr/s 0.00 | MBw/s 11.98 | avio 0.28 ms |
DSK | xvdb | busy 85% | read 0 | write 23706 | KiB/w 5 | MBr/s ...
'Missing contentDescription attribute on image' in XML
...g" in Preferences, find "contentDescription" (it is in the "Accessibility" group) and change "Severity:" to Ignore.
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How can I disable ReSharper in Visual Studio and enable it again?
... Best solution, but be aware that at least the first command group will fail if r# is currently not enabled!
– Samuel
Feb 12 at 8:23
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How to find third or nth maximum salary from salary table?
...vantage of the ROW_NUMBER approach is that you can use ..OVER(PARTITION BY GroupColumn OrderBy OrderColumn). So you can use it to get groups but still access any column of it.
– Tim Schmelter
Nov 27 '17 at 9:14
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Codesign error: Provisioning profile cannot be found after deleting expired profile
...doesn't require the manual editing of the project file:
In XCode, in the "Groups & Files" pane, expand "Targets" and double-click on your app's target. This brings up the Info pane for the target. In the "Build" section, check the "code signing" section for any old profiles and replace with the...
Android - Package Name convention
...lways the publishing entity's' name
Second level (optional) = sub-devison, group, or project name
Final level = product name
For example he android launcher (home screen) is
Com.Google.android.launcher
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How to request a random row in SQL?
...Id=LA.CustomerId inner join CustomerLogin CL on C.CustomerId=CL.CustomerId group by C.CustomerId, CL.LoginName having count(*)>1 order by NEWID() Removing the "order by NEWID()" line returns results much faster.
– Ben Power
Aug 26 '15 at 23:02
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