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R and version control for the solo data analyst
...l on it is going to increase the complexity of your file system by exactly 0. If your projects are strewn about your computer- then you should centralize them before applying version control and this will end up decreasing the complexity of managing your files- that's why we have a Documents folder...
How to use concerns in Rails 4
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620
So I found it out by myself. It is actually a pretty simple but powerful concept. It has to do w...
What's the difference between passing by reference vs. passing by value?
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1103
First and foremost, the "pass by value vs. pass by reference" distinction as defined in the C...
Is it possible to decrypt MD5 hashes?
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430
No. MD5 is not encryption (though it may be used as part of some encryption algorithms), it is a...
Why does Twitter Bootstrap Use Pixels for Font Size?
... blog about these changes as they come up more, but I'm unsure how close 3.0 is and what that will all entail yet.
I would suggest anyone with strong feelings about this go and +1 this thread.
[Update] V3 roadmap oulined in V2.3 release blogpost makes no mention of adding support for ems.
[Update] ...
Why does C++ need a separate header file?
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105
You seem to be asking about separating definitions from declarations, although there are other ...
How dangerous is it to access an array out of bounds?
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Check synchronously if file/directory exists in Node.js
...are the historical answers in chronological order:
Original answer from 2010
(stat/statSync or lstat/lstatSync)
Update September 2012
(exists/existsSync)
Update February 2015
(Noting impending deprecation of exists/existsSync, so we're probably back to stat/statSync or lstat/lstatSync)
Update Dece...
Do on-demand Mac OS X cloud services exist, comparable to Amazon's EC2 on-demand instances? [closed]
...rious pricing options, as you mention the all day pass, monthly plans at $20, and their is a pay as you go plan at $1/hr. I'd probably go with pay as you go based on my usage. The pay as you go is based on prepaid credits (1 credit = 1 hour, billed at 30 credit increments). One caveat is that you ne...
How can I know which parts in the code are never used?
... never read (even though used).
-Wunreachable-code (older GCC, removed in 2010) should warn about local blocks that are never accessed (it happens with early returns or conditions that always evaluate to true)
there is no option I know of to warn about unused catch blocks, because the compiler gener...