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Core Data: Quickest way to delete all instances of an entity
...und in the "What's New in Core Data" session from WWDC 2015 (starting at ~14:10).
iOS 8 and earlier:
Fetch 'em all and delete 'em all:
NSFetchRequest *allCars = [[NSFetchRequest alloc] init];
[allCars setEntity:[NSEntityDescription entityForName:@"Car" inManagedObjectContext:myContext]];
[allCars...
How to format date and time in Android?
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24 Answers
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How do I detect whether a Python variable is a function?
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934
If this is for Python 2.x or for Python 3.2+, you can also use callable(). It used to be depreca...
MySQL pagination without double-querying?
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answered May 4 '09 at 2:37
staticsanstaticsan
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Using .NET, how can you find the mime type of a file based on the file signature not the extension
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84
In Urlmon.dll, there's a function called FindMimeFromData.
From the documentation
MIME typ...
Programmatically get height of navigation bar
...bar) pushes down the UIView by its height. I also know that this height = 44px. I have also discovered that this push down maintains the [self.view].frame.origin.y = 0 .
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Android Studio with Google Play Services
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243
All those answers are wrong, since the release of gradle plugin v0.4.2 the setup of google play...
DateTime format to SQL format using C#
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Ben Gripka
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answered Jul 2 '13 at 5:55
Debajit MukhopadhyayDebajit Mukhopadh...
Is there a way to view past mysql queries with phpmyadmin?
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answered Jul 14 '10 at 15:21
chris1979chris1979
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Joining two lists together
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edited Sep 28 '16 at 14:16
Sipo
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answered Oct...