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Uninstall old versions of Ruby gems
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663
# remove all old versions of the gem
gem cleanup rjb
# choose which ones you want to remove
gem...
How to know if two arrays have the same values
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23 Answers
23
Active
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SQL standard to escape column names?
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edited Oct 22 '18 at 3:27
Basil Bourque
186k5757 gold badges571571 silver badges804804 bronze badges
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Add timestamps to an existing table
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edited Aug 15 '17 at 17:53
vkopio
65211 gold badge77 silver badges2222 bronze badges
answered Sep 25 '1...
Measuring elapsed time with the Time module
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530
start_time = time.time()
# your code
elapsed_time = time.time() - start_time
You can also wri...
How to declare variable and use it in the same Oracle SQL script?
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139
There are a several ways of declaring variables in SQL*Plus scripts.
The first is to use VAR, ...
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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How to quickly and conveniently create a one element arraylist [duplicate]
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edited Feb 24 at 22:33
Leo Ufimtsev
4,12044 gold badges2525 silver badges3737 bronze badges
answer...
Is there a naming convention for Django apps
...rcase names, although the use of underscores is
discouraged.
So, 1 and 3 are both valid, but 3 would be the recommended approach.
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