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How to not run an example using roxygen2?
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Use \dontrun{}
#'@examples
#'\dontrun{
#'geocode("3817 Spruce St, Philadelphia, PA 19104")
#'geocode("Philadelphia, PA")
#'dat <- data.frame(value=runif(3),address=c("3817 Spruce St, Philadelphia, PA 19104","Philadelphia, PA","Neverneverland"))
#'geocode(dat)
#'}
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Mapping two integers to one, in a unique and deterministic way
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234
You're looking for a bijective NxN -> N mapping. These are used for e.g. dovetailing. Have a...
How does one use rescue in Ruby without the begin and end block
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3
Also, class definitions, module definitions and (I think) do/end block literals form implicit exception blocks.
– Jör...
Does .NET have a way to check if List a contains all items in List b?
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If you're using .NET 3.5, it's easy:
public class ListHelper<T>
{
public static bool ContainsAllItems(List<T> a, List<T> b)
{
return !b.Except(a).Any();
}
}
This checks whether there are any elements in b ...
Return only string message from Spring MVC 3 Controller
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@ResponseBody
public String foo() {
return "Response!";
}
From: 15.3.2.6 Mapping the response body with the @ResponseBody annotation:
The @ResponseBody annotation [...] can be put on a method and indicates that the return type should be written straight to the HTTP response body (and not...
What is the difference between NULL, '\0' and 0?
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358
Note: This answer applies to the C language, not C++.
Null Pointers
The integer constant l...
Likelihood of collision using most significant bits of a UUID in Java
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213
According to the documentation, the static method UUID.randomUUID() generates a type 4 UUID.
Th...
css overflow - only 1 line of text
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362
If you want to restrict it to one line, use white-space: nowrap; on the div.
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