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How is Generic Covariance & Contra-variance Implemented in C# 4.0?
I didn't attend PDC 2008, but I heard some news that C# 4.0 is announced to support Generic covariance and contra-variance. That is, List<string> can be assigned to List<object> . How could that be?
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How can I use mySQL replace() to replace strings in multiple records?
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answered Nov 24 '10 at 20:28
Raj MoreRaj More
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Finding row index containing maximum value using R
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170
See ?which.max
> which.max( matrix[,2] )
[1] 2
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What does git push -u mean?
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answered Apr 6 '11 at 4:06
Rafe KettlerRafe Kettler
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How to randomly sort (scramble) an array in Ruby?
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answered Nov 29 '09 at 18:49
Ron GejmanRon Gejman
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How to compile a static library in Linux?
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answered Apr 29 '10 at 4:10
Matthew FlaschenMatthew Flaschen
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Get last dirname/filename in a file path argument in Bash
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answered Jul 20 '10 at 20:29
sthsth
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Merging 2 branches together in GIT
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200
merge is used to bring two (or more) branches together.
a little example:
# on branch A:
# cr...
Create array of symbols
...iginal answer was written back in September '11, but, starting from Ruby 2.0, there is a shorter way to create an array of symbols! This literal:
%i[address city state postal country]
will do exactly what you want.
share
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What does -XX:MaxPermSize do?
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+50
The permanent space is where the classes, methods, internalized strings, and similar objects used by the VM are stored and never deall...