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What does “not run” mean in R help pages?
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"not run" encloses code that shouldn't be executed in the example function (e.g. time-consuming code parts, user-interaction, ...).
see e.g. ?example:
As detailed in the manual Writing R Extensions, the author of
the help page can markup parts of the examples for tw...
How to model type-safe enum types?
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http://www.scala-lang.org/docu/files/api/scala/Enumeration.html
Example use
object Main extends App {
object WeekDay extends Enumeration {
type WeekDay = Value
val Mon, Tue, Wed, Thu, Fri, Sat, Sun = Value
}
import WeekDay._
def isWorkingDay(d: WeekDay) = !...
Why main does not return 0 here?
...r than just a move and a return—so it’s almost certainly a register, eax specifically on x86.
– Jon Purdy
Dec 30 '11 at 9:37
8
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Difference between Control Template and DataTemplate in WPF
...ol is rendered for its own sake, and doesn't reflect underlying data. For example, a Button wouldn't be bound to a business object - it's there purely so it can be clicked on. A ContentControl or ListBox, however, generally appear so that they can present data for the user.
A DataTemplate, therefor...
Difference between two lists
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Using Except is exactly the right way to go. If your type overrides Equals and GetHashCode, or you're only interested in reference type equality (i.e. two references are only "equal" if they refer to the exact same object), you can ...
Scala underscore - ERROR: missing parameter type for expanded function
... there have been quite a few questions on this, but I've created a simple example that I thought should work,but still does not and I'm not sure I understand why
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Not equal != operator on NULL
Could someone please explain the following behavior in SQL?
11 Answers
11
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Force line-buffering of stdout when piping to tee
...her words, as long as your printf argument ends with a newline, you can expect the line to be printed instantly. This does not appear to hold when using a pipe to redirect to tee .
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Javascript Thousand Separator / string format [duplicate]
... answer below was wrong. There is a built in function for this, which is exactly what kaiser suggests below: toLocaleString
So you can do:
(1234567.89).toLocaleString('en') // for numeric input
parseFloat("1234567.89").toLocaleString('en') // for string input
The function implemen...
sed in-place flag that works both on Mac (BSD) and Linux
...tion of sed todo in-place editing without backups that works both on Linux and Mac? While the BSD sed shipped with OS X seems to need sed -i '' … , the GNU sed Linux distributions usually come with interprets the quotes as empty input file name (instead of the backup extension), and needs ...