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UIGestureRecognizer on UIImageView
...Check that userInteractionEnabled is YES on the UIImageView. Then you can add a gesture recognizer.
imageView.userInteractionEnabled = YES;
UIPinchGestureRecognizer *pgr = [[UIPinchGestureRecognizer alloc]
initWithTarget:self action:@selector(handlePinch:)];
pgr.delegate = self;
[imageView ad...
How to validate an email address in PHP
I have this function to validate an email addresses:
10 Answers
10
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What is the advantage of using abstract classes instead of traits?
What is the advantage of using an abstract class instead of a trait (apart from performance)? It seems like abstract classes can be replaced by traits in most cases.
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Entity Framework with NOLOCK
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No, but you can start a transaction and set the isolation level to read uncommited. This essentially does the same as NOLOCK, but instead of doing it on a per table basis, it will do it for everything within the scope of the transaction.
If that sounds like what you want, here's how you coul...
How does the String class override the + operator?
Why in Java you're able to add Strings with the + operator, when String is a class? In the String.java code I did not find any implementation for this operator. Does this concept violate object orientation?
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Specifying Maven's local repository location as a CLI parameter
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Petr KozelkaPetr Kozelka
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10
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Mixins vs. Traits
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Mixins may contain state, (traditional) traits don't.
Mixins use "implicit conflict resolution", traits use "explicit conflict resolution"
Mixins depends on linearization, traits are flattened.
Lecture about traits
ad 1.
In mixins you can define insta...
How do the major C# DI/IoC frameworks compare? [closed]
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Yahya Hussein
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answered Jan 3 '11 at 10:49
Mark SeemannMark Seemann
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Is there a command like “watch” or “inotifywait” on the Mac?
...pt/to/run/when/files/change.sh
Note: The number output by -o will get added to the end of the xargs command if not for the -I{}. If you do choose to use that number, place {} anywhere in your command.
The older way for versions 0.x:
fswatch ~/path/to/watch ~/script/to/run/when/files/change.s...
Select first row in each GROUP BY group?
...ginally stated), SQL Server 2005+, PostgreSQL 8.4+, DB2, Firebird 3.0+, Teradata, Sybase, Vertica:
WITH summary AS (
SELECT p.id,
p.customer,
p.total,
ROW_NUMBER() OVER(PARTITION BY p.customer
ORDER BY p.total DESC) AS rk
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