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How to check if a variable is an integer in JavaScript?
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How can I exclude all “permission denied” messages from “find”?
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How to convert a column number (e.g. 127) into an Excel column (e.g. AA)
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Evenly distributing n points on a sphere
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Is there an R function for finding the index of an element in a vector?
... that is equal to x . I know that one way to do this is: which(x == v)[[1]] , but that seems excessively inefficient. Is there a more direct way to do it?
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Grep regex NOT containing string
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grep matches, grep -v does the inverse. If you need to "match A but not B" you usually use pipes...
How does the extend() function work in jQuery?
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The documentation isn't precise in explaining how extend works, so I ran ...
What is the difference between HashSet and List?
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A HashSet is a List with no duplicate members.
Because a HashSet is...
Check for current Node Version
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edited Jul 4 '13 at 18:23
Thank you
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Best way to iterate through a Perl array
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In terms of speed: #1 and #4, but not by much in most instances.
You could write a benchmark to confirm, but I suspect you'll find #1 and #4 to be slightly faster because the iteration work is done in C instead of Perl, and no needless copying ...