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Better explanation of when to use Imports/Depends
...ng R Extensions " manual provides the following guidance on when to use Imports or Depends:
4 Answers
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Why would I prefer using vector to deque
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Elements in a deque are not contiguous in memory; vector elements are guaranteed to be. So if you need to interact with a plain C library that needs contiguous arrays, or if you care (a lot) about spatial locality, then you might prefer vector. In addition, since there ...
jQuery table sort
...u want to avoid all the bells and whistles then may I suggest this simple sortElements plugin. Usage:
var table = $('table');
$('.sortable th')
.wrapInner('<span title="sort this column"/>')
.each(function(){
var th = $(this),
thIndex = th.index(),
in...
Is an anchor tag without the href attribute safe?
Is it okay to use an anchor tag without including the href attribute, and instead using a JavaScript click event handler? So I would omit the href completely, not even have it empty ( href="" ).
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Why are C# interface methods not declared abstract or virtual?
C# methods in interfaces are declared without using the virtual keyword, and overridden in the derived class without using the override keyword.
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cancelling queued performSelector:afterDelay calls
does anybody know if it is possible to cancel already queued selector events from the event stack or timer stack (or whatever mechanism it is that is utilized by the API) when you call performSelector:withObject:afterDelay ?
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error: ‘NULL’ was not declared in this scope
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NULL is not a keyword. It's an identifier defined in some standard headers. You can include
#include <cstddef>
To have it in scope, including some other basics, like std::size_t.
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Where do I find the current C or C++ standard documents?
For many questions the answer seems to be found in "the standard". However, where do we find that? Preferably online.
12 An...
How do I break out of a loop in Scala?
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You have three (or so) options to break out of loops.
Suppose you want to sum numbers until the total is greater than 1000. You try
var sum = 0
for (i <- 0 to 1000) sum += i
except you want to stop when (sum > 1000).
What to do? ...
How to validate phone numbers using regex
...ve regex to validate phone numbers. Ideally it would handle international formats, but it must handle US formats, including the following:
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