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Swift make method parameter mutable?
How can I deal with this error without creating additional variable?
7 Answers
7
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Cocoa Core Data efficient way to count entities
... about Core Data.. but what is an efficient way to make a count over an Entity-Type (like SQL can do with SELECT count(1) ...). Now I just solved this task with selecting all with NSFetchedResultsController and getting the count of the NSArray ! I am sure this is not the best way...
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How to uninstall editable packages with pip (installed with -e)
I have installed some packages with -e
6 Answers
6
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Why so red? IntelliJ seems to think every declaration/method cannot be found/resolved
...e-installed IntelliJ. Every Java file is coming up RED. I checked the JDK; it is at 1.6.##. The maven clean install build worked just fine.
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How to turn NaN from parseInt into 0 for an empty string?
Is it possible somehow to return 0 instead of NaN when parsing values in JavaScript?
18 Answers
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UITapGestureRecognizer - single tap and double tap
I am trying to add 2 UITapGestureRecognizers to a view, one for single tap and one for double tap events. The single tap recognizer is working as expected (on its own). But I don't seem to be able to get the double tap recognizer working.
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How might I convert a double to the nearest integer value?
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Use Math.round(), possibly in conjunction with MidpointRounding.AwayFromZero
eg:
Math.Round(1.2) ==> 1
Math.Round(1.5) ==> 2
Math.Round(2.5) ==> 2
Math.Round(2.5, MidpointRounding.AwayFromZero) ==> 3
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How to force cp to overwrite without confirmation
I'm trying to use the cp command and force an overwrite.
16 Answers
16
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event Action vs event EventHandler
...ther event in the system, which I would consider a drawback.
One upside with the dominating design pattern (apart from the power of sameness) is that you can extend the EventArgs object with new properties without altering the signature of the event. This would still be possible if you used Action...
How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?
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This is a function of udev (specifically its configuration in /lib/udev/rules.d/??-persistent-serial.rules), which was introduced in 2.5.
– ergosys
Aug 14 '13 at 4:16
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