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Node.js create folder or use existing
...an achieve this very gracefully without encountering a race condition.
In order to prevent dead time between checking for existence and creating the directory, we simply try to create it straight up, and disregard the error if it is EEXIST (directory already exists).
If the error is not EEXIST, ho...
How to add to an existing hash in Ruby
...will create a empty hash.
Arrays have zero or more elements in a specific order, where elements may be duplicated. Hashes have zero or more elements organized by key, where keys may not be duplicated but the values stored in those positions can be.
Hashes in Ruby are very flexible and can have key...
Python Script execute commands in Terminal
...ything. It's way safer. subprocess.call() will get you a nice interface in order to replace the simple call form.
– Jorge Vargas
Mar 24 '11 at 20:35
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How does BitLocker affect performance? [closed]
...ter because it made my SAS results out of synch with respect to processing order and it screwed up some of my processes and data. Scary stuff in my world.
I work with people who have successfully used Truecrypt on the exact same computer, but they weren't using a disk intensive app. like SAS.
Bit...
Obfuscated C Code Contest 2006. Please explain sykes2.c
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Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity.
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In R, how to get an object's name after it is sent to a function?
...o a for-loop.) You would be able to extract the ".Names"-attribute and the order of processing from the structure result, if it were a named vector that were being processed.
> lapply( list(a=4,b=5), function(x) {nm <- deparse(substitute(x)); strsplit(nm, '\\[')} )
$a
$a[[1]]
[1] "X" "" ...
Do while loop in SQL Server 2008
...
This seems like a copy-paste-reorder from stackoverflow.com/a/46362450/8239061.
– SecretAgentMan
Jul 11 '19 at 16:23
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Finding all cycles in a directed graph
...point of multiple practical algorithms which apply various enhancements in order to improve performance and avoid cycle duplication. I was surprised to find out some time ago that these algorithms are not readily available in textbooks and on the web. So I did some research and implemented 4 such al...
Sharing a result queue among several processes
...t-handling, the results in the Manager.Queue also are not guaranteed to be ordered.
The worker processes are not started with .apply_async(), this already happens when you instantiate Pool. What is started
when you call pool.apply_async() is a new "job". Pool's worker-processes run the multiprocess...
Unusual shape of a textarea?
...ht of the main div:
As you can see, you have to play a little with the borders if you want the same result as you requested in your post. The main div has the blue border on every side. Next, red blocks has to be sticked to hide top borders of the main div, and you need to apply border to them on...