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How do I print out the contents of an object in Rails for easy debugging?
...er.name = "John Smith"
user.age = 30
puts user.inspect
#=> #<User:0x423270c @name="John Smith", @age=30>
puts user.to_yaml
#=> --- !ruby/object:User
#=> age: 30
#=> name: John Smith
Hope that helps.
shar...
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...
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 get hex color value rather than RGB value?
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142
var hexDigits = new Array
("0","1","2","3","4","5","6","7","8","9","a","b","c","d","e",...
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
27.5k44 gold badges5454 silver badges7171 bronze badges
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How to format date and time in Android?
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24 Answers
24
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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...
C++ IDE for Macs [closed]
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edited Oct 13 '16 at 20:34
Lidakis Emmanuel
1,02588 silver badges1111 bronze badges
answered Oct 21 '08...