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How can I convert a Unix timestamp to DateTime and vice versa?
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19 Answers
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Create a variable name with “paste” in R?
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125
You can use assign (doc) to change the value of perf.a1:
> assign(paste("perf.a", "1", sep...
Difference between del, remove and pop on lists
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11 Answers
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Is it possible to for SQL Output clause to return a column not being inserted?
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196
You can do this by using MERGE instead of insert:
so replace this
INSERT INTO ReportOption (...
Global access to Rake DSL methods is deprecated
...may see something like
rake aborted!
You have already activated Rake 0.9.1 ...
I still had a copy of Rake 0.9.1 in my directory so I deleted it.
You can "delete" Rake 0.9.1 by running the following command:
gem uninstall rake -v=0.9.1
If you have multiple versions of the gem installed, you'...
How can I find all of the distinct file extensions in a folder hierarchy?
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16 Answers
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How do I select elements of an array given condition?
Suppose I have a numpy array x = [5, 2, 3, 1, 4, 5] , y = ['f', 'o', 'o', 'b', 'a', 'r'] . I want to select the elements in y corresponding to elements in x that are greater than 1 and less than 5.
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How do I set/unset a cookie with jQuery?
...ing jQuery, for example create a cookie named test and set the value to 1 ?
14 Answers
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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 ...
How to get arguments with flags in Bash
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11 Answers
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