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Do I set properties to nil in dealloc when using ARC?
...n MRR, you should release your ivars. Nilling out properties means calling setters, which may invoke code that it shouldn't touch in dealloc (e.g. if your class, or a subclass, overrides the setter). Similarly it may trigger KVO notifications. Releasing the ivar instead avoids these undesired behavi...
What is the best way to initialize a JavaScript Date to midnight?
What is the simplest way to obtain an instance of new Date() but set the time at midnight?
9 Answers
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Can't access RabbitMQ web management interface after fresh install
... a new user with admin grants:
rabbitmqctl add_user test test
rabbitmqctl set_user_tags test administrator
rabbitmqctl set_permissions -p / test ".*" ".*" ".*"
Now you can access using test test.
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Is there a quicker / better way to clear the iPhone Simulator cache than deleting its directory?
...here is a better way than going into every single simulator in town, and resetting contents and settings one at a time. Also much better than looking into your simulator's directory and yanking the cache from under its feet.
Quit iPhone Simulator, then run xcrun in Terminal:
xcrun simctl erase all
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Python group by
Assume that I have a set of data pair where index 0 is the value and index 1 is the type:
6 Answers
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Entity framework code-first null foreign key
...e your foreign key nullable:
public class User
{
public int Id { get; set; }
public int? CountryId { get; set; }
public virtual Country Country { get; set; }
}
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Efficiency of Java “Double Brace Initialization”?
...Coin was along the lines of:
List<Integer> intList = [1, 2, 3, 4];
Set<String> strSet = {"Apple", "Banana", "Cactus"};
Map<String, Integer> truthMap = { "answer" : 42 };
Sadly, it didn't make its way into neither Java 7 nor 8 and was shelved indefinitely.
Experiment
Here's...
UIButton title text color
I'm setting text color for UIButton
4 Answers
4
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Setting environment variables for accessing in PHP when using Apache
... getenv in PHP. I need to know how these environment variables need to be set for the application to work correctly. I am not sure how to set this up on Apache.
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Change auto increment starting number?
In MySQL, I have a table, and I want to set the auto_increment value to 5 instead of 1 . Is this possible and what query statement does this?
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