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Ubuntu running `pip install` gives error 'The following required packages can not be built: * freety
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edited Jan 24 '17 at 18:59
Julien Marrec
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Getting the ID of the element that fired an event
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edited May 15 '19 at 5:24
Jack Bashford
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jQuery: Check if div with certain class name exists
...ere is a truthy value at the first ([0]) index, then assume class exists.
Edit 04/10/2013: I've created a jsperf test case here.
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How do I replace a git submodule with another repo?
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edited Apr 18 at 6:45
diman
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In C#, what happens when you call an extension method on a null object?
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edited May 11 '09 at 9:49
answered May 11 '09 at 8:37
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Reshaping data.frame from wide to long format
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edited Oct 21 '19 at 10:33
Jaap
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Best way to create unique token in Rails?
...m_token unless ModelName.exists?(token: random_token)
end
end
end
Edit:
@kain suggested, and I agreed, to replace begin...end..while with loop do...break unless...end in this answer because previous implementation might get removed in the future.
Edit 2:
With Rails 4 and concerns, I woul...
Combine Date and Time columns using python pandas
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edited Jul 31 '13 at 18:53
answered Jul 31 '13 at 18:33
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Multiplication on command line terminal
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edited Aug 17 '14 at 12:55
answered Jun 14 '12 at 19:20
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Wait for a void async method
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edited Apr 29 '16 at 16:12
tier1
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