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data.table vs dplyr: can one do something well the other can't or does poorly?
... some powerful features, all while maintaining the consistency in syntax.
1. Speed
Quite a few benchmarks (though mostly on grouping operations) have been added to the question already showing data.table gets faster than dplyr as the number of groups and/or rows to group by increase, including ben...
What is the reason for performing a double fork when creating a daemon?
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Looking at the code referenced in the question, the justification is:
Fork a second child ...
Regex to replace everything except numbers and a decimal point
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Use this:
document.getElementById(target).value = newVal.replace(/[^0-9.]/g, "");
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How can I move a single directory from a git repository to a new repository whilst maintaining the h
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answered May 1 '09 at 13:39
Brian CampbellBrian Campbell
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eval command in Bash and its typical uses
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10 Answers
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angular.min.js.map not found, what is it exactly?
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As eaon21 and monkey said, source map files basically turn minified code into its unminified version for debugging.
You can find the .map files here. Just add them into the same directory as the minified js files and it'll stop comp...
How do you execute an arbitrary native command from a string?
...nd #3:
iex $command
Some strings won't run as-is, such as your example #1 because the exe is in quotes. This will work as-is, because the contents of the string are exactly how you would run it straight from a Powershell command prompt:
$command = 'C:\somepath\someexe.exe somearg'
iex $command
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Is there a decorator to simply cache function return values?
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NameError: name 'reduce' is not defined in Python
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answered Dec 31 '11 at 16:27
Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams
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How can I generate a list of files with their absolute path in Linux?
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21 Answers
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