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How to read environment variables in Scala
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Now that I use Scala on a daily basis, I must move the accepted answer to @paradigmatic's answer. It uses Scala API and if used as suggested in the comments can return an Option.
– summerbulb
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PHP session lost after redirect
...the session forward.
Make sure your file extension is .php (it happens!)
Now, these are the most common mistakes, but if they didn't do the trick, the problem is most likely to do with your hosting company. If everything works on localhost but not on your remote/testing server, then this is most l...
Add new row to dataframe, at specific row-index, not appended?
...insertRow(existingDF,newrow,r),
insertRow2(existingDF,newrow,r)
)
# Now return the median times
mediansBy <- by(m$time,m$expr, FUN=median)
res <- as.numeric(mediansBy)
names(res) <- names(mediansBy)
res
}
nrows <- 5*10^(0:5)
benchmarks <- sapply(nrows,benchmarkInsertion...
How do I exit a WPF application programmatically?
...he few years I've been using C# (Windows Forms), I've never used WPF. But, now I love WPF, but I don't know how I am supposed to exit my application when the user clicks on the Exit menu item from the File menu.
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Is it possible to create static classes in PHP (like in C#)?
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I know this is pretty old, but now you could use magic __callStatic so when you call any static method or anything, it will first call __callStatic, there you could see if it was initialized and then do self::$method or whatever...
How do I sort an NSMutableArray with custom objects in it?
... There's nothing really wrong with it, but I think there are now much better alternatives.
– Georg Schölly
Apr 30 '09 at 6:43
6
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How can I use xargs to copy files that have spaces and quotes in their names?
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find . -print0 | grep --null 'FooBar' | xargs -0 ...
I don't know about whether grep supports --null, nor whether xargs supports -0, on Leopard, but on GNU it's all good.
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Programmatically get own phone number in iOS
...tion in the file system. This restriction is part of the security feature known as the application's "sandbox." The sandbox is a set of fine-grained controls limiting an application's access to files, preferences, network resources, hardware, and so on."
The device's phone number is not available w...
What is the difference between iterator and iterable and how to use them?
...ng string = iterator.next();
System.out.println(string);
}
}
Now, is it clear? :)
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Why does the is operator return false when given null?
...documentation only states that expression cannot be null (that we already know), but it doesn't tell why
– username
Oct 3 '11 at 20:23
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