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How do I turn on SQL debug logging for ActiveRecord in RSpec tests?
I have some RSpec tests for my models and I would like to turn on SQL ActiveRecord logging just like I see in the Rails server mode. How to do that?
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Can anybody push to my project on github?
...he remote repo, and I refresh the page, I can see the changes are uploaded(for example, if I wrote a readme.txt and push it to the remote repo, where such a readme.txt did not exist, after push and refresh the page, it appears).
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Bash/sh - difference between && and ;
...d in a line, but some people prefer && . Is there any difference? For example, cd ~; cd - and cd ~ && cd - seems to make the same thing. What version is more portable, e.g. will be supported by a bash-subset like Android's shell or so?
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How to break out of a loop in Bash?
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Thanks for contributing an answer to Stack Overflow!Please be sure to answer the question. Provide details and share your research!But avoid …Asking for help, clarification, or responding to other answers.Making statements based o...
Ruby Arrays: select(), collect(), and map()
The syntax for mapping:
3 Answers
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difference between foldLeft and reduceLeft in Scala
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Few things to mention here, before giving the actual answer:
Your question doesn't have anything to do with left, it's rather about the difference between reducing and folding
The difference is not the implementation at all, just look at the signatures....
Remove multiple keys from Map in efficient way?
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in terms of "efficiency" its probably just a for loop underneath, but in terms of cleaner code, nice win :)
– rogerdpack
Jan 25 '16 at 22:14
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MySQL: Sort GROUP_CONCAT values
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Your code is heavily relied upon for your specific answer, and therefore should not be placed anywhere but your original post. If you put it here in this comment, many programmers here won't see it, and you won't get the best possible response :)
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Ruby sleep or delay less than a second?
...th of a second between sending the commands. What is the best way to sleep for less than a second?
2 Answers
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C# List to string with delimiter
... non-linq syntax in Quartermeister's answer and I think Aggregate might perform slower (probably more string concatenation operations).
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