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Programmatically change log level in Log4j2
I'm interested in programmatically changing the log level in Log4j2. I tried looking at their configuration documentation but that didn't seem to have anything. I also tried looking in the package: org.apache.logging.log4j.core.config , but nothing in there looked helpful either.
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Simultaneously merge multiple data.frames in a list
... but they all share the key variables (which I've called "var1" and "var2" in the code below). If the data.frames were identical in terms of columns, I could merely rbind , for which plyr's rbind.fill would do the job, but that's not the case with these data.
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Test if a vector contains a given element
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521
Both the match() (returns the first appearance) and %in% (returns a Boolean) functions are desi...
Check whether number is even or odd
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204
You can use the modulus operator, but that can be slow. If it's an integer, you can do:
if ( ...
Passing a std::array of unknown size to a function
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edited Jun 17 '13 at 20:36
answered Jun 17 '13 at 20:30
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How to count total lines changed by a specific author in a Git repository?
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TypeScript sorting an array
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answered Feb 10 '14 at 21:08
SLaksSLaks
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Get the week start date and week end date from week number
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162
You can find the day of week and do a date add on days to get the start and end dates..
DATEADD...
Scala list concatenation, ::: vs ++
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325
Legacy. List was originally defined to be functional-languages-looking:
1 :: 2 :: Nil // a lis...
How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?
...must be converted to a string:
require 'date'
DateTime.strptime("1318996912",'%s')
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