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领域驱动设计系列（五）:事件驱动之异步事件 - 更多技术 - 清泛网 - 专注C/...
...void Handle(TEvent e);
}
public class HeadedEvent:Event
{
public string Name { get; set; }
}
public class GuoJiZhangMotherEventHandler : IEventHandler<HeadedEvent>
{
public void Handle(HeadedEvent e)
{
Console.WriteLine(e.Name+", Are you kidding me?");
}
}
...
The performance impact of using instanceof in Java
...e how instanceOf performance is comparing to a simple s.equals() call to a string object with only one letter.
in a 10.000.000 loop the instanceOf gave me 63-96ms, and the string equals gave me 106-230ms
I used java jvm 6.
So in my simple test is faster to do a instanceOf instead of a one charact...
Automatically update version number
...build number.
There are 2 Gotchas:
Each of the 4 numbers in the Version string is limited to 65535. This is a Windows Limitation and unlikely to get fixed.
Why are build numbers limited to 65535?
Using with with Subversion requires a small change:
Using MSBuild to generate assembly version i...
Hidden features of Scala
... "Hello, world")
The right hand expression creates a Tuple3[Int, Double, String] which can match the pattern (a, b, c).
Most of the time your patterns use extractors that are members of singleton objects. For example, if you write a pattern like
Some(value)
then you're implicitly calling the ...
Disable mouse scroll wheel zoom on embedded Google Maps
...
Why not just use an image then? you're loading a lot of extra assets just to disable it all.
– deweydb
Jun 11 '14 at 4:40
2
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Swift: Pass array by reference?
...
I agree. There is also the abomination where String is a subtype of Any BUT if you import Foundation then String becomes a subtype of AnyObject.
– GoZoner
Jan 18 '15 at 15:16
...
Yellow fade effect with JQuery
... have tried in my code but does not do anything. Do I need to download any extra. It says dependencies: Effects Core. It is this another plugin.
– Sergio del Amo
May 11 '09 at 16:19
...
Is it possible to specify the schema when connecting to postgres with JDBC?
...of version 9.4, you can use the currentSchema parameter in your connection string.
For example:
jdbc:postgresql://localhost:5432/mydatabase?currentSchema=myschema
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read.csv warning 'EOF within quoted string' prevents complete reading of file
...ns.CSV", quote = "",
row.names = NULL,
stringsAsFactors = FALSE)
str(cit)
## 'data.frame': 112543 obs. of 13 variables:
## $ row.names : chr "10.2307/675394" "10.2307/30007362" "10.2307/4254931" "10.2307/20537934" ...
## $ id : chr "10.2307/6...
Can you remove elements from a std::list while iterating through it?
... go backwards and then forward again when deleting but in exchange for the extra iterator increment you can have the iterator declared in the loop scope and the code looking a bit cleaner. What to choose depends on priorities of the moment.
The answer was totally out of time, I know...
typedef std...